Manual

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User’s

Manual

AXR

Two-wire

Magnetic Flowmeter

Integral Flowmeter

[Style:S2]

IM 01E30D01-01EN

3rd Edition

Summary of content (194 pages)

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User’s Manual AXR Two-wire Magnetic Flowmeter Integral Flowmeter [Style:S2] IM 01E30D01-01EN IM 01E30D01-01EN 3rd Edition
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AXR Two-wire Magnetic Flowmeter Integral Flowmeter IM 01E30D01-01EN 3rd Edition Contents 1. 2. 3. INTRODUCTION......................................................................................... 1-1 1.1 Using the Magnetic Flowmeter Safely............................................................. 1-2 1.2 Warranty.............................................................................................................. 1-3 1.3 ATEX Documentation..........................................
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ii 5.3 6. 7. 5.3.1 Setting Example for Selection-Type Data: Flow rate units................. 5-5 5.3.2 Setting Example for Numeric-Type Data: Flow rate span.................. 5-7 5.3.3 Setting Example for Alphanumeric-Type Data: Tag number.............. 5-8 PARAMETER DESCRIPTION.................................................................... 6-1 6.1 Parameters......................................................................................................... 6-1 6.2 Parameter Lists.....
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iii 8.8 9. 8.8.1 Trim Analog Output............................................................................. 8-4 8.8.2 Fixed Current Output.......................................................................... 8-5 8.8.3 Burst Mode.......................................................................................... 8-5 8.8.4 Multidrop Mode................................................................................... 8-5 8.8.5 Switching HART Protocol Revision......................
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iv 11.5 Regular Inspection Items................................................................................ 11-9 11.6 Insulation Resistance Test, Dielectric Strength Test................................... 11-9 11.7 12. 11.6.1 Procedure of Insulation Resistance test.................................................... 11-9 11.6.2 Procedure of Dielectric Strength Test............................................... 11-9 Troubleshooting.............................................................
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INSTALLATION AND OPERATING PRECAUTIONS FOR TIIS FLAMEPROOF EQUIPMENT............................................................................................................. 1 Apparatus Certified Under Technical Criteria(IEC-compatible Standards)............ 1 1. General................................................................................................................... 1 2. Electrical Apparatus of Flameproof Type of Explosion-Protected Construction....................................
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1. 1-1 <1. INTRODUCTION> INTRODUCTION This instrument has been adjusted at the factory before shipment. To ensure correct use of the instrument, please read this manual thoroughly and fully understand how to operate the instrument before operating it. • If the customer or any third party is harmed by the use of this product, Yokogawa assumes no responsibility for any such harm owing to any defects in the product which were not predictable, or for any indirect damages.
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NOTE A NOTE sign denotes information necessary for essential understanding of operation and features. Class A grounding terminal Functional grounding terminal Direct current <1. INTRODUCTION> 1.1 1-2 Using the Magnetic Flowmeter Safely WARNING (1) Installation • Installation of the magnetic flowmeter must be performed by expert engineer or skilled personnel. No operator shall be permitted to perform procedures relating to installation. • The magnetic flowmeter is a heavy instrument.
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(4) Maintenance • Maintenance of the magnetic flowmeter should be performed by the trained personnel having knowledge of safety standard. No operator shall be permitted to perform any operations relating to maintenance. • Do not open the cover in wet weather or humid environment. When the cover is open, stated enclosure protection is not applicable. • When opening the cover, wait for more than 5 minutes after turning off the power. • Always conform to maintenance procedures outlined in this manual.
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1.3 <1. INTRODUCTION> 1-4 ATEX Documentation This is only applicable to the countries in European Union.
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2. <2. HANDLING PRECAUTIONS> HANDLING PRECAUTIONS 2.2 This instrument has been inspected carefully at the factory before shipment. When the instrument is delivered, visually check that no damage has occurred during transportation. Read this section carefully as it contains important information on handling this instrument. Refer to the relevant sections for information not contained in this section. If you have any problems or questions, please contact Yokogawa sales office. 2.
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2.4 <2. HANDLING PRECAUTIONS> 2-2 Installation Location Precautions Select the installation location with consideration to the following items to ensure long-term stable operation of the instrument.  Ambient Temperature: Avoid installing the instrument in locations with constantly fluctuating temperatures. If the location is subject to radiant heat from the plant, provide heat insulation or improve ventilation.  Atmospheric Condition: Avoid installing the instrument in a corrosive atmosphere.
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3. 3.1 3-1 <3. INSTALLATION> INSTALLATION Piping Design Precautions WARNING Installation of the magnetic flowmeter must be performed by expert engineer or skilled personnel. No operator shall be permitted to perform procedures relating to installation. IMPORTANT Design piping correctly, referring to the following to prevent damage to flowtubes and to assure accurate measuring. (1) Location IMPORTANT Install the flowmeter in a location where it is not exposed to direct sunlight.
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3-2 <3. INSTALLATION> (5) Precautions for Use of Liquid Sealing Compounds IMPORTANT Care must be taken in using liquid sealing compounds on the piping, as it may have a negative influence on the flow indications by flowing out and covering the surfaces of an electrode or grounding ring. In particular, care must be taken if a liquid sealing compound is used in the case of vertical piping. (6) Service Area Select locations where there is adequate space to service installing, wiring, overhauling, etc.
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3.2 • Mounting orientation IMPORTANT If electrodes are perpendicular to the ground, air bubbles near the top or precipitates at the bottom may cause measurement errors. Ensure that the converter of an integral flowmeter are mounted above the piping to prevent water from entering them. Correct Incorrect Incorrect Electrode Precipitate Handling Precautions WARNING The magnetic flowmeter is a heavy instrument.
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(4) Terminal Box Cover IMPORTANT As it is possible that the insulation will deteriorate, do not open the terminal box cover until it is time to wire it. (5) Long-term Non-use IMPORTANT 3-4 <3. INSTALLATION> 3.2.2 Flowmeter Piping CAUTION Misaligned or slanted piping can lead to leakage and damage to the flanges. (1) Correct any misaligned or slanted piping, and any gaps that may exist between mounting flanges before installing the flowmeter (refer to Figure 3.2.1).
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3.3 Mounting Procedures NOTE • The tightening torque value to which gaskets must be tightened varies depending on the type and external dimensions of the lining and the gasket. In this section, the tables indicating tightening torque values include the corresponding gasket types. The internal diameters of the gaskets are close to those of the grounding rings.
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3-6 <3. INSTALLATION> *Nut (eight units) *Through-bolt (four units) Piping-side flange *: These items can be ordered optionally. If they are provided by the user, choose nuts and bolts in compliance with the flange ratings. Centering device (two units) Mini-flange Horizontal mounting F0308b.ai *Gasket (two units) F0308a.ai Vertical mounting F0308c.ai Figure 3.3.1 Mounting Procedure for Wafer Type (size: 25 (1.0) and 40 mm (1.5 in.)) Table 3.3.
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Table 3.3.3 3-7 <3. INSTALLATION> Wafer Type Tightening Torque Values for Metal Piping and Permeable Fluids Tightening torque values for PFA lining type (N-m / {kgf-cm} / [in-lbf]) Gasket types within flowtube No gasket (standard) Gasket types for user’s flange PTFE-sheathed non-asbestos gasket (optional codes BCF and BSF), or the equivalent in hardness Flange ratings Size mm (inch) JIS 10K, ANSI Class 150, and DIN PN10 JIS 20K, ANSI Class 300, and DIN PN16 DIN PN40 25 (1.0) 34.9 to 40.
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3-8 <3. INSTALLATION> (4) Tightening Nuts CAUTION Tighten the nuts according to the torque values for metal piping in Table 3.3.4. For PVC piping, select an optional code of GA, GC, or GD, use rubber gaskets and tighten the nuts to the torque values for PVC piping in Table 3.3.5. For permeable fluids (such as nitric acid, hydrofluoric acid, or sodium hydrate at high temperatures), tighten the nuts according to the torque values in Table 3.3.6.
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Table 3.3.5 Wafer Type Tightening Torque Values for PVC Piping N-m Unit: {kgf-cm} [in-lbf] Tightening torque values for PFA lining type Gasket types within flowtube Gasket types for user’s flange Flange ratings Size mm (inch) Fluororubber gasket (optional codes GA, GC, and GD) Fluororubber gasket, chloroprene rubber gasket (optional codes BSC and BCC), or the equivalent in hardness JIS 10K ANSI Class 150 9.9 to 16.5 {101.0 to 168.3} [87.6 to 146.0] 14.2 to 23.7 {144.8 to 241.7} [125.7 to 209.8] 9.
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<3. INSTALLATION> Table 3.3.8 3-10 Centering Device Identification (AXR Lay length code 2, PFA lining) Flange ratings JIS ANSI DIN 10K 20K F12 (75M) 150 300 PN10 PN16 PN40 50 (2.0) B B — B F — — F 65 (2.5) B B — B G — F — 80 (3.0) B F H F C — G — Size mm (inch) 100 (4.0) B F H C H — F — 150 (6.0) C D D C E — C — 200 (8.0) C D D D E C C — *: Each centering device is engraved with a character as identification. Table 3.3.
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<3. INSTALLATION> 3-11 CAUTION For a flowmeter with fluorocarbon PFA lining, it is possible that the nuts may loosen as time passes, so tighten them regularly. Be sure to tighten the nuts according to the prescribed torque values. Tighten them diagonally with the same torque values, step by step up to the prescribed torque value. *Piping-side flange *Gasket (two units) *: These items must be provided by the user. Choose nuts and bolts in compliance with the flange ratings.
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<3. INSTALLATION> 3-12 Table 3.3.11 Flange Type Tightening Torque Values for PVC Piping N-m Unit: {kgf-cm} [in-lbf] Tightening torque values for PFA lining type Gasket types within flowtube Fluororubber gasket (optional codes GA, GC, and GD) Gasket types for user’s flange Fluororubber gasket, chloroprene rubber gasket, or the equivalent in hardness Flange ratings JIS 10K ANSI Class 150 DIN PN10 JIS20K ANSI Class 300 DIN PN16 DIN PN40 JIS F12 (JIS 75M) 25 (1.0) 2.7 to 4.5 {27.53 to 45.
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4. <4. WIRING> 4-1 WIRING This section describes the wiring of the integral flowmeter. WARNING The wiring of the magnetic flowmeter must be performed by expert engineer or skilled personnel. No operator shall be permitted to perform procedures relating to wiring. CAUTION Once all wiring is complete, check the connections before applying power to the instrument. Improper arrangements or wiring may cause a unit malfunction or damage. 4.
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4.2 Terminal Configuration and Terminal Wiring Terminal No. Symbols ➀ + SUPPLY− DO + − 4-2 <4. WIRING> ➁ ➂ ➃ ➄ ➀ 4.3 Description ➀ Functional grounding ➁ ➂ SUPPLY Power supply and current output ➃ ➄ DO Digital output (One output can be selected from pulse, alarm or status outputs.) Wiring Ports This instrument is of watertight construction as stipulated in JIS C0920.
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4-3 <4. WIRING> For working on the electric wire tubes or the flexible tubes (PF1/2), remove the waterproof gland and attach them directly to the wiring port. (3) Conduit Wiring When wiring the conduits, pass the conduit through the wiring connection port, and utilize the waterproof gland to prevent water from flowing in. Place the conduit pipe on an angle as shown in Figure 4.3.4. Install a drain valve at the low end of the vertical pipe, and open the valve regularly.
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4.4 4-4 <4. WIRING> Grounding Connection IMPORTANT Grounding resistance of 100 Ω or less is necessary. When the optional code A is selected, grounding resistance of 10 Ω or less shall be required. In case of TIIS explosion proof type, grounding resistance of 10 Ω or less is necessary for class A grounding terminal. Grounding resistance of 100 Ω or less is necessary for Functional grounding terminal.
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4-5 <4. WIRING> 4.5 [TIIS Explosion Proof Type] Hazardrous area Non-hazardrous area Class A grounding Grounding ring • TIIS Explosion Proof Type: Grounding resistance of 10 Ω or less is necessary for class A grounding terminal. Grounding resistance of 100 Ω or less is necessary for Functional grounding terminal. When the optional code A is selected, grounding resistance of 10 Ω or less shall be required.
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The description of the terminal symbols is shown in Table 4.5.1. Table 4.5.1 Description Functional grounding ➀ ➁ ➂ SUPPLY + ➃ ➄ DO – – + 4.6 Power supply and current output Digital output (One output can be selected from pulse, alarm or status outputs.) (3) Terminal Configuration (TIIS Explosion Proof Type) This instrument uses the same two wires for both, the signal and power supply. A DC power supply is required in a transmission loop. The allowable power supply voltage is described below.
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4-7 <4. WIRING> Table 4.6.1 Connecting device and Applicable maximum cable length (guideline) Connecting device SUPPLY Name Model DO Power supply cable F0415.ai Figure 4.6.2 Electric Cable Wiring (TIIS Explosion Proof Type) IMPORTANT • Connecting with the commercial AXR power supply will damage the flowmeter. Be sure to use the DC power supply in the predetermined range. • Do not connect power supply with reversed polarities.
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4-8 <4. WIRING> Selection of HART 5/ HART 7 Output Signal Code Ordering Information HART Protocol Revision 600 External Load Resistance R= E−14.7 0.0236 Digital Communication Range (BRAIN or HART) 250 R (Ω) 14.7 20.6 28.9 Power supply voltage E (V DC) 42 F0416.ai Figure 4.6.
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IMPORTANT Precaution for Pulse Output • As this is a transistor contact (insulated type), give attention to proper voltage and polarity when wiring. • Do not apply a voltage larger than 30 V DC or a current larger than 120 mA in order to prevent damage to the instrument. • When input filter constant of the electronic counter is large in relation to the pulse width, the signal will decrease and the count will not be accurate.
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4-10 <4. WIRING>  Wiring Examples (General - purpose Use/Explosion Proof Type except TIIS) Table 4.6.2 General - purpose Use/Explosion Proof Type except TIIS Wiring Examples (Current Output, Pulse Output, Status Output and Alarm Output) Connection Current Output In this case, Communication is possible (up to a distance of 2 km when a CEV cable is used.) Pulse Output In this case, No communication is possible when a fourwire cable is used.
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Table 4.6.3 4-11 <4. WIRING> General - purpose Use/Explosion Proof Type except TIIS Wiring Examples (Simultaneous CurrentPulse Output) Connection Description Simultaneous CurrentPulse Output When simultaneous output of current and pulse output are used, no communication is possible in some cases. Refer to following example 1 to 3. Example 1 In this case, Communication is possible (up to a distance of 2 km when a CEV cable is used) and when a two-wire shielded cable is used.
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Table 4.6.4 General - purpose Use/Explosion Proof Type except TIIS Wiring Examples (Digital External Indicator Using Current Output) Connection Description Current Output Digital External Indicator 77.
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4-13 <4. WIRING> n WIRING EXAMPLE (TIIS Explosion Proof Type) Table 4.6.5 TIIS Explosion Proof Type Wiring Examples (Current Output, Pulse Output, Status Output and Alarm Output) Connection Current Output In this case, Communication is possible (up to a distance of 2 km when a CEV cable is used.) Pulse Output In this case, No communication is possible when a fivewire cable is used.
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Table 4.6.6 4-14 <4. WIRING> TIIS Explosion Proof Type Wiring Examples (Simultaneous Current-Pulse Output) Connection Description Simultaneous Current-Pulse Output When simultaneous output of current and pulse output are used, no communication is possible in some cases. Refer to following example 1 to 3. Example 1 In this case, Communication is possible (up to a distance of 2 km when a CEV cable is used) and when a two-wire or threewire shielded cable is used.
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Table 4.6.7 TIIS Explosion Type Wiring Examples (Digital External Indicator Using Current Output) Connection Description Current Output 77.7% - + SUPPLY + DO - Example 2 Connection to analog external indicator V2 + V2: Voltage between terminals of External Indicator Relaying terminal JIS Class A AXR Terminal + Cable Resistance:R1[Ω] *9 Cable Resistance:R2[Ω] *9 Cable Resistance:R4[Ω] *9 - Distributor, etc. R3 E1 R3[Ω]:Load Resistance 0.0236 × (R1 + R2 + R3 + R4) + V2 + 14.
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5. <5. BASIC OPERATING PROCEDURES (USING THE DISPLAY UNIT)> 5-1 BASIC OPERATING PROCEDURES(USING THE DISPLAY UNIT) Both of four push button and magnet switches can be used for setting. The magnet switches can be used to set parameters without opening the case cover. The magnet switches need operational magnets (optional code BM). These are also available as part number F9840PA. Users can choose a language on indicator from English, Japanese, German, French, Italian, and Spanish.
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5.1 5-2 <5. BASIC OPERATING PROCEDURES (USING THE DISPLAY UNIT)> Operating Panel Configuration and Functions SET ESC 100.0m /h 3 0 DEC 3274m3 /SHIFT FR (2) Setting switch operation 100 FTL INC (5) Write Protect (2) Setting switches (Magnet switches) ESC 1st line (Display Select1), 2nd line (Display Select2) and 3rd line (Display Select3) can be displayed using parameter settings. The content corresponding to selected items is shown with the reversed-character on the right of the line.
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5.2 5-3 <5. BASIC OPERATING PROCEDURES (USING THE DISPLAY UNIT)> Display Unit Setting Methods NOTE Before changing any settings, be sure to check the corresponding setting details in Chapter 6: Parameter Description. 5.2.1 Display Mode → Setting Mode Display Mode will be adopted when the power is turned on, and the Setting Mode can be activated using the following procedure.
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A screen is displayed to confirm whether or not the system is to enter Setting Mode. Press the INC switch and select [Yes]. (*1) Entry Mode 5-4 <5. BASIC OPERATING PROCEDURES (USING THE DISPLAY UNIT)> SET ESC Setting mode The reversed-character (i.e. the cursor position) indicates the item that is currently selected.
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5-5 <5. BASIC OPERATING PROCEDURES (USING THE DISPLAY UNIT)> 5.2.2 Setting Mode When the Setting Mode has been activated using the procedure from Section 5.2.1, parameters can be selected for setting. NOTE If no operations are carried out for a period of 10 minutes in Setting Mode, the system will automatically return to the Display Mode. Format for Parameter Data Depending on the type of parameter, data is formatted in one of the following three ways.
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5-6 <5. BASIC OPERATING PROCEDURES (USING THE DISPLAY UNIT)> Sub-item Parameter Search Mode Major item Sub-item parameter B:Easy Setup 50:Auto Zero Exe 10:Language 20:Flow Damping INC Major item Sub-item selection (A) X2 B:Easy Setup 20:Flow Damping 21:Base Flow Unit 22:Base Time Unit Sub-item Parameter Search Mode has been accessed in this screen. Touch the INC switch to move the cursor to B21: Base Flow Unit. The cursor has been moved to B21: Base Flow Unit in this screen.
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<5. BASIC OPERATING PROCEDURES (USING THE DISPLAY UNIT)> 5-7 5.3.2 Setting Example for Numeric-Type Data: Flow rate span This example describes the setting of the flow rate span for the numeric-type parameter B23: Flow Span from 100 l/min to 120 l/min. Start: Major Item Parameter Search Mode Setting mode Major item parameter Setting Mode Condition Setting mode P:Protect B:Easy Setup C:Basic Setup Touch the SET switch to access B: Easy Setup.
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5-8 <5. BASIC OPERATING PROCEDURES (USING THE DISPLAY UNIT)> When the SET switch is touched, the entire display flashes on and off. Confirm that the setting has been correctly changed to “120,” and then fix this value by touching the SET switch once again. B23:Flow Span 120 l/min SET NOTE When no operations are carried out for 20 seconds in the flashing state, the system will automatically return to the Sub-item Parameter Search Mode.
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5-9 <5. BASIC OPERATING PROCEDURES (USING THE DISPLAY UNIT)> Sub-item Parameter Search Mode Major item Sub-item selection (C) C:Basic Setup 49:Flow User Span 10:Tag No 11:Flow Damping Selection of the appropriate parameter SET Parameter Current setting value Replacement Mode Modified value C10:Tag No Fl-1101 l-1101 DEC /SHIFTX4 Current setting value Upon selection of C: Basic Setup, the cursor will be positioned at C10: Tag No.
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6. 6.1 <6. PARAMETER DESCRIPTION> PARAMETER DESCRIPTION Parameters NOTE With the exception of parameters that were specified by the customer upon ordering, all of the internal parameters will initially be set to default values. Actions such as the modification of display details can then be carried out whenever necessary. In order to ensure that correct flow rate data can be acquired, it is crucial that the nominal size, flow rate span, and meter factor of the combined flowtube are set.
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6.3 6-2 <6. PARAMETER DESCRIPTION> Parameter List Overview (1) Item A (Menu A): Display items Menu A contains the instantaneous flow rate, totalization values, and other items relevant to display. Item Name Display unit (BRAIN) R/W Data range Display unit /BRAIN Units Position of decimal point % 1 For Display Mode only B21/B22 (C40/C41) 0 to 3 For Display Mode only Default value (*): Indicated item Description A00 Display (DISPLAY) A10 FR (FLOW RATE (%)) R -103.1 to 103.
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Item 6-3 <6. PARAMETER DESCRIPTION> Name Display unit (BRAIN) B22 Base Time Unit (TIME UNIT) R/W W B23 Flow Span (FLOW SPAN) W B24 Flow Decimal Pnt (FLOW DECIMAL) W B30 Total Unit (TOTAL UNIT) W B31 Total Scale (TOTAL SCALE) W B32 Pulse Unit (PULSE UNIT) W B33 Pulse Scale (PULSE SCALE) W B40 Display Select1 (DISP SELECT1) W B41 Display Select2 (DISP SELECT2) W Data range Display unit /BRAIN /s /min /h /d 0.
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6-4 <6. PARAMETER DESCRIPTION> (3) Item C (Menu C): Basic Setting items Menu C principally contains the basic setting items for the flowtube. Item Name Data range R/W Display unit /BRAIN C10 Tag No (TAG NO) W ASCII 16 or ASCII 8 (*1) characters C11 Flow Damping (FLOW DAMPING) W 1.0 to 200.
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Item 6-5 <6. PARAMETER DESCRIPTION> Name Display unit (BRAIN) R/W Data range Display unit /BRAIN C43 Flow Decimal Pnt (FLOW DECIMAL) W Auto 0 1 2 3 C44 Velocity Check (VELOCITY CHK) R 0.000 to 99.999 C45 Density Unit (DENSITY UNIT) W kg/m3 lb/gal lb/cf C46 Mass Flow Density (MASS DENSITY) W 0 to 32000 C50 User Span Select (USER SPN SEL) W No Yes C51 Flow User Unit (FL USER UNIT) W 8 alphanumeric characters C52 Flow User Span (FL USER SPAN) W 0.
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6-6 <6. PARAMETER DESCRIPTION> (4) Item D (Menu D): Total Setting items Menu D contains setting items such as the totalization scale and the forward/reverse totalized values.
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6-7 <6. PARAMETER DESCRIPTION> (5) Item E (Menu E): Pulse Setting items Menu E contains items relevant to pulse output. This is used to set parameters such as the pulse scale and width.
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6-8 <6. PARAMETER DESCRIPTION> (6) Item F (Menu F): Status Functions Setting items Menu F contains items relevant to multiplex range output and other status Output.
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6-9 <6. PARAMETER DESCRIPTION> (7) Item G (Menu G): Alarm Setting items Menu G contains setting items relevant to alarm output, burnout, alarm record, etc.
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Item 6-10 <6. PARAMETER DESCRIPTION> Name Display unit (BRAIN) R/W Data range Display unit /BRAIN Units Position of decimal point Default value (*): Indicated item Description G42 Alm Record Time1 (ALM TIME 1) R 0D 00:00 to 9999D 23:59 Displays the operation time at the occurrence of the most recent alarm. G43 Alm Record2 (ALM RECORD2) R Same as G41 (Alm Record 1) Displays the content of the second most recent alarm.
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6-11 <6. PARAMETER DESCRIPTION> (8) Item H (Menu H): Display Setting items Menu H contains setting items that are relevant to display on the display unit.
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6-12 <6. PARAMETER DESCRIPTION> (9) Item J (Menu J): Auxiliary Function Setting items Menu J contains setting items such as the flow direction, rate limits, and low cut. Item Name Display unit (BRAIN) Data range R/W Display unit /BRAIN Units Position of decimal point Default value (*): Indicated item Description J00 Aux (AUX) J10 4-20mA Low Cut (4-20 LOW CUT) W 0 to 20 % 0 3% Sets the range in vicinity of 0% within which the current output will be 4 mA.
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6-13 <6. PARAMETER DESCRIPTION> (10) Item K (Menu K): Diagnostic Function Setting items Menu K contains items that are relevant to the diagnosis of insulation adhesion to the electrode.
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6-14 <6. PARAMETER DESCRIPTION> (11) Item M (Menu M): Automatic Zero-Adjustment Function Setting items Menu M contains items that are relevant to automatic zero adjustment. Item Name Display unit (BRAIN) R/W Data range Units Display unit /BRAIN Position of decimal point Default value (*): Indicated item Description M00 Adjustment (ADJUSTMENT) M10 Auto Zero Exe (AUTOZERO EXE) W No Execution Execution No Execution Selects whether or not automatic zero adjustment is carried out.
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6-15 <6. PARAMETER DESCRIPTION> (13) Item P (Menu P): Parameter Protection items Menu P contains items that are relevant to write protection and passwords.
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6.4 <6. PARAMETER DESCRIPTION> Parameter Description IMPORTANT One output can be selected from pulse, alarm, or status through the parameter setting. (1) Menu B: Easy Setup items Those parameters with a high frequency of use have been grouped together in Easy Setup. All basic functions can be controlled using only the parameters from this block.
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NOTE If the flow rate units, time units, and flow rate span are specified upon ordering, these parameters will be setup before shipment; however, if this is not the case, it will be necessary for the appropriate values to be set up by the user. NOTE Flow rate span is the value for instantaneous flow rate that corresponds to a current output of 20 mA. The following factors should be taken into consideration when deciding on the flow rate span.
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[B30: Total Unit] Setting of units for totalization scale → This setting is linked with that of parameter D10. This parameter selects the flow rate units for use in totalization. Item Description n Unit/P 10-9  FU u Unit/P 10-6  FU m Unit/P 10-3  FU Unit/P 6-18 <6. PARAMETER DESCRIPTION> FU k Unit/P 103  FU M Unit/P 106  FU Pulse/s Number of pulses to be counted for one second at 100% output. FU: Flow rate unit selected in B21/C40: Base Flow Unit.
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[B33: Pulse Scale] Setting of pulse scale → This setting is linked with that of parameter E11. Pulse output is performed in individual counts in accordance with this parameter’s setting. If 0 is set, it indicates that the pulse output function is not to be used. NOTE If a pulse scale is specified upon ordering, this parameter is setup before shipment; however, if this is not the case, it will be necessary for the appropriate value to be setup by the user. <6.
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(2) Menu C: Basic Setting items Menu C principally contains the basic setting items for the flowtube. NOTE In order to ensure that correct flow rate data can be acquired, it is crucial that the nominal size, flow rate span, and meter factor of the combined remote flowtube are set. In cases where the AXR integral flowmeter is ordered, the nominal size and meter factor will be set upon shipment from the manufacturing plant, and these will not require additional setting.
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[C41: Base Time Unit] Selection of time units for the flow rate span → Refer to the description of parameter B22. [C42: Flow Span] Setting of the flow rate span → Refer to the description of parameter B23. [C43: Flow Decimal Pnt] Setting of the decimal point position for the instantaneous flow rate → Refer to the description of parameter B24. [C44: Velocity Check] Display of the flow rate span velocity This parameter displays the flow rate span for the maximum range in m/s units.
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<6. PARAMETER DESCRIPTION> (3) Menu D: Total Setting items Menu D contains parameters that are relevant to totalization function settings. [D10: Total Unit] Setting of units for totalization scale → Refer to the description of parameter B30. [D11: Total Scale] Setting of the totalization scale → Refer to the description of parameter B31.
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6-23 <6. PARAMETER DESCRIPTION> [D22: Ttl Set Val Upper] Setting of the totalization preset value (upper 2 digits) This parameter sets a totalization preset value in the upper 2 digits of the 8-digit totalized value. If zero is to be set as the preset value, “00” should be set here. Lower 6 digits Upper 2 digits F0602.
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<6. PARAMETER DESCRIPTION> Data Range Pulse Rate (pps) Setting Maximum Value (0) 50% Duty 11000 (1) 0.05ms 10000 (2) 0.1ms 5000 (3) 0.5ms 1000 (4) 1ms 500 (5) 20ms 25 (6) 33ms 15 (7) 50ms 10 (8) 100ms 5 (9) 200ms 2.5 (10) 330ms 1.5 (11) 500ms 1.0 (12) 1000ms 0.5 (13) 2000ms 0.25 Minimum Value 0.0001 (pps: pulses per second) NOTE 6-24 NOTE When the low cut is small, an incorrect output may occur at the flow rate of zero and a pulse may be output.
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<6. PARAMETER DESCRIPTION> 6-25 (5) Menu F: Status Function Setting items Menu F contains setting items relevant to status Output functions. [F10: DO Function] Setting of the function for the DO output terminal This parameter sets the function for the DO (digital output) terminal. Setting Function Description No Function Stops output (i.e., inactive condition) As no function is set, there is no output. Pulse Output Pulse output Pulse output is carried out.
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6-26 <6. PARAMETER DESCRIPTION> Parameter setting sequence (for automatic multiple ranges switching) NOTE Multiple ranges setting Parameters from F20 to F31 are used with the automatic multiple ranges. The followings will describe the setting method for the range. The multiple ranges use the following parameters: [B23: Flow Span] Setting of the flow rate span (Setting of the forward No.1 range) [F20: Forward Span 2] Setting of the forward No.
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NOTE For more details regarding the setting of hysteresis width, refer to the description of setting parameter for F30: Auto Range Hys and F31: Bi Direction Hys. [F30: Auto Range Hys] Setting of automatic rangeswitching hysteresis width Automatic switching takes place for multiple range switching when 100% of the range is exceeded, and this parameter allows a hysteresis width to be set for this switching. Refer to Figure 6.4.1: Multiple Ranges and Hysteresis Widths.
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6-28 <6. PARAMETER DESCRIPTION> Output Example 2 The high alarm (H) is set to 80% or more of the flow rate span only without low alarm (L) setting; and the H/L alarm hysteresis width is set to 0%. Settings are: G10: Low Alarm = -105% • A setting value of -105% indicates that the alarm is disabled.
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[G25: 4-20mA Process Alarm] Selection of the current output during a process alarm occurrence This parameter sets the current output during a process alarm occurrence. Setting 21.6 mA or More 20.5 mA Hold Function Fixed at 21.6 mA or more Fixed at 4.0 mA 3.8 mA Fixed at 3.8 mA Fixed at 3.2 mA or less The default parameter is set to the following table at the factory. Standard Optional code C1 21.6 mA or More 3.
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[G31: Alarm setting] Selection of the alarm output during a setting error occurrence This parameter specifies whether the alarm will be recognized as an alarm during a setting error occurrence. Setting Function No Not recognized as an alarm Yes Recognized as an alarm [G35: Alm Display] Selection of the alarm display form. This parameter specifies the alarm display form of the display unit and configuration tools. Setting Normal NE107 6-30 <6.
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[G42: Alm Record Time1] Display the operation time of alarm record1 This parameter is used to display the operation time at which the alarm indicated by G41: Alm Record1 was occurred. For example, “1D23:45” indicates that an alarm was occured at the operation time of 1 day, 23 hours, and 45 minutes. IMPORTANT Use these values as a reference because the time of alarm records (1 to 4) have an error.
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<6. PARAMETER DESCRIPTION> (8) Menu J: Auxiliary Function Setting items Menu J contains setting items such as the flow direction, rate limits, and current output limits. [J10: 4-20mA Low Cut] Setting of the low-cut range for current output This parameter is used to force current output to 0 % (i.e., 4 mA) in the vicinity of 0% output, and setting for the current (4 to 20 mA) output low cut is made using a percentage of the smallest flow rate span. The low cut setting value depends on flow rate span.
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<6. PARAMETER DESCRIPTION> NOTE • If the setting value for the low limit is not less than the high limit value (as set using J12: 420mA High Lmt), the setting alarm “54: 4-20 Lmt Err” will be displayed. • This parameter has no effect on pulse output or the totalization function. [J12: 4-20mA High Lmt] Setting of the high limit for current output This parameter is used to restrict high current portions of current (4 to 20mA) output, and it is initially set to 103.13%.
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<6. PARAMETER DESCRIPTION> [J22: Dead Time] Setting of dead time This parameter sets the time for application of the rate limit, and if a value of 0 is set, the rate limit function will be terminated. NOTE Determining rate limit value and dead time Rate limit value: Determines the level for output fluctuation cutoff. For example, if this is set to 2%, noise above 2% will be eliminated as shown in the diagram. Dead time (T0): This is to be determined using the output fluctuation width.
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[J30: Basic Frequency] Selection of the basic frequency This parameter is changed from default setting as “Freq (1)” to “Freq (2)” if the magnetic flowmeter occurred the error caused by installation of a next magnetic flowmeter closely. [J35: Memo 1] Setting of memo 1 [J36: Memo 2] Setting of memo 2 [J37: Memo 3] Setting of memo 3 These parameters are used with the memo function, and up to 16 characters can be set for each.
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IMPORTANT • Parameters cannot be set during execution (approximately 5 minutes). • Adhesion diagnosis should only be carried out when the fluid velocity is completely zero by closing the valve. • Flow measurement is not performed during execution. While adhesion diagnosis is being carried out, normally a current of 4 mA is output. When adhesion diagnosis is carried out, change the control loop to the manual mode first. • Adhesion diagnosis cannot be carried out while an alarm is occurring.
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6-37 <6. PARAMETER DESCRIPTION> IMPORTANT • If the pipe is empty, the output fluctuates or the Process Alarm (Signal Overflow) occurs. The pipe must be fully filled with liquid. • The instrument checks whether the pipe is empty or not by measuring the resistance between the electrode and the ground. Therefore, it cannot check the status depending on the conditions in the pipe, electrode, and noise at the installation sites. In this case, set this parameter to “No.
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[M13: Flow Zero(IEM)] Display of the result of automatic zero adjustment (excitation current (Middle)) This parameter is used to display the result of automatic zero adjustment (excitation current (Middle) at B50(M10): Auto Zero Exe. It is possible to set parameters as coefficient value directly.
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6-39 <6. PARAMETER DESCRIPTION> [N15: Test Time] Selection of the holding time of test mode This parameter is used to select the holding time of test mode from the last operation in test mode. Setting Function [N40: Average Execution] Selection of execution for measurement of averaged flowrate This parameter is used to select whether the execution for measurement of averaged flowrate is occurrence in a constant time.
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<6. PARAMETER DESCRIPTION> [P20: Write Protect] Setting of password to release the write protection function This parameter is used to indicate whether or not write protection is currently on. Default setting (Enable) P20:Write Protect No 6-40 The default setting for this parameter is a string of 8 spaces (i.e., Enable), and thus, the password field will be empty. When the cursor is flashing, the password should be input. Press the SET key twice to confirm the password.
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6.5 Alarm Functions 6.5.2 Alarm Selection 6.5.1 Alarm Levels Alarms are classified into the following four different types based on level. Alarm 6-41 <6. PARAMETER DESCRIPTION> Level Description System alarm Major breakdown Device breakdown or inability to obtain correct measurements. Replacement will be required. Process alarm Intermediate Device is normal but process-related level break errors make correct measurement down impossible. Maintenance or the like will be required.
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6-42 <6. PARAMETER DESCRIPTION> (1) Display and output condition for system alarms Alarm description Normal Alarm Output 4-20mA output Totalization Pulse Alarm record Display unit Closed (ON) Normal Normal Normal Display Mode No 10 μP Fault Microprocessor (CPU) failure Open (Off) Fixed at 3.2mA or less otherwise 21.
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6-43 <6. PARAMETER DESCRIPTION> (3) Display and output condition for setting alarm occurrences Alarm description Selection (parameter number) Alarm output 4-20 mA output Totalization Pulse output NO (G30) Closed (On) Fixed Stopped Stopped Alarm Mode (message) No Closed (On) Normal operation Stopped Normal operation Alarm Mode (message) No Displayunit Alarm record 50 Span > 10m/s Span flow velocity setting is 11 m/s or more 51 Span < 0.3m/s Span flow velocity setting is 0.
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6-44 <6. PARAMETER DESCRIPTION> 6.5.3 Alarms & Warning Messages System Alarms (Device breakdown or inability to obtain correct measurements.
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6-45 <6. PARAMETER DESCRIPTION> Setting Alarm (Device is normal but errors have been made in the setting of parameters.) Display unit/BRAIN (60) alarm content Alarm countermeasure message on display unit NE-107 status 50:Span > 10m/s Check parameter C40,C41,C42,F20, and F21 S Span flow velocity settings is 11 m/s or more 51:Span < 0.3m/s Check parameter C40,C41,C42,F20, and F21 S Span flow velocity setting is 0.25 m/s or less Check whether parameters C40, C41 and C42 are correct.
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6-46 <6. PARAMETER DESCRIPTION> Setting Alarms (Device and measurements are normal but a warning is issued.) Display unit/ BRAIN(60) content Alarm countermeasure message on display unit NE-107 status 80:Adhesion Wng – M Slight adhesion to electrodes. Clean and check the electrodes. Refer to parameter K15. 82:Auto Zero Wng – C Results of automatic zero adjustment are higher than the rated values. Carry out adjustment as follows: · Check if the flowtube is filled with fluid.
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7. OPERATION VIA BRAIN TERMINAL (BT200) 7.1.2 Key Descriptions NOTE (1) Alphanumeric keys and shift keys This chapter describes the AXR as an example. 7.1 7-1 <7. OPERATION VIA BRAIN TERMINAL (BT200)> You can use the alphanumeric keys in conjunction with the shift keys to enter letters, digits, and symbols. BT200 Basic Operations 7.1.
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Use the function key [F2] CAPS to select between uppercase and lowercase (for letters only). The case toggles between uppercase and lowercase each time you press [F2] CAPS. Entering uppercase CODE CAPS 7-2 <7. OPERATION VIA BRAIN TERMINAL (BT200)> ESC CODE caps CLR ESC F0705.ai Entry Key-in sequence to lower case (o) (y) Use the function key [F1] CODE to enter symbols. The following symbols will appear in sequence, one at a time, at the cursor each time you press [F1] CODE: / .
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7.2 <7. OPERATION VIA BRAIN TERMINAL (BT200)> AXR Operation Using a BT200 7-3 IMPORTANT This section describes procedures for setting parameters using a BRAIN Terminal (BT200). For more details regarding AXR functions, refer to Chapter 6: Parameter Description; and for more details regarding BT200 operation methods, refer to the BT200 User’s Manual (IM 01C00A11-01E). 7.2.
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7-4 <7. OPERATION VIA BRAIN TERMINAL (BT200)> 7.2.2 The data update and upload/ download function of BT200 (1) The data update of BT200 When the following parameters are displayed, the measured data is updated automatically every seven seconds.
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7.3 <7. OPERATION VIA BRAIN TERMINAL (BT200)> 7-5 Parameter Setting Using a BT200 This section describes the procedure for setting of parametes using a BT200. IMPORTANT If the power of flowmeter is turned off within 30 seconds after parameters have been set, these settings will be canceled. Accordingly, please keep the power on for at least 30 seconds after setting parameters.
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7-6 <7. OPERATION VIA BRAIN TERMINAL (BT200)> 7.3.1 BT200 Setting of Selection-Type Data: Flow rate units In this example, the flow rate units specified by the selection-type parameter B21: Flow Unit are changed from m3 to l (Liter). MENU A:DISPLAY B:EASY SETUP C:BASIC SETUP D:TOTAL SET E:PULSE SET F:STATUS FUNC HOME SET ADJ MENU A:DISPLAY B:EASY SETUP C:BASIC SETUP D:TOTAL SET E:PULSE SET F:STATUS FUNC HOME SET ADJ ESC ESC PARAMETER B10:LANGUAGE English B20:FLOW DAMPING 5.
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<7. OPERATION VIA BRAIN TERMINAL (BT200)> 7-7 7.3.2 BT200 Setting of Numeric-Type Data: Flow rate span In this example, the flow rate span specified by the numeric-type parameter B23: Flow Span is changed from 100.000 l/min. to 120.000 l/m. MENU A:DISPLAY B:EASY SETUP C:BASIC SETUP D:TOTAL SET E:PULSE SET F:STATUS FUNC HOME SET ADJ MENU A:DISPLAY B:EASY SETUP C:BASIC SETUP D:TOTAL SET E:PULSE SET F:STATUS FUNC HOME SET ADJ SETTING B23:FLOW SPAN 100.
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7-8 <7. OPERATION VIA BRAIN TERMINAL (BT200)> 7.3.3 BT200 Setting of Alphanumeric-Type Data: Tag number In this example, the tag number specified by the alphanumeric-type parameter C10: TAG NO is changed from “FI-1101” to “FI-1201.” MENU A:DISPLAY B:EASY SETUP C:BASIC SETUP D:TOTAL SET E:PULSE SET F:STATUS FUNC HOME SET ADJ MENU A:DISPLAY B:EASY SETUP C:BASIC SETUP D:TOTAL SET E:PULSE SET F:STATUS FUNC HOME SET ADJ ESC ESC PARAM C10:TAG NO FI-1201 C11:FLOW DAMPING 5.0s C20:LOW MF(IEL) 1.
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8. OPERATION VIA HART CONFIGURATION TOOL (HART 5) This Chapter describes the device (AXR) operation procedures using a HART configuration Tool (such as FieldMate). NOTE NOTE In this User’s Manual, HART protocol revision 5 and 7 are described as HART 5 and HART 7 respectively. For more details regarding the operations for the HART configuration tool, refer to the HART configuration tool operations manual. Note: HART is a registered trademark of the HART Communication Foundation. 8.1 8-1 <8.
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8-2 <8. OPERATION VIA HART CONFIGURATION TOOL (HART 5)> 8.2.2 Device Type Manager (DTM) and Device Revision (2) Confirm the installed DD revision in accordance with the procedure of the Configuration Tool. Refer to its manual how to confirm it in detail. When configure the parameters using FieldMate, use the DTM (Device Type Manager) referring to the following table. MODEL AXR DTM Name AXR V2.1 Device Type AXR (0x57) Device Revision 2 The device revision can be checked as follows. DTM 8.
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8.4 <8.
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8.7 Self-diagnostic Functions The self-diagnostic function of the AXR is explained in Section 6.5 “Alarm Functions.” The HART configuration tool can be used to run self-diagnostics on a device and check for incorrect data settings. (1) Using DD The Self test and Status commands are available for self-diagnostics. When Self test is run, the display unit shows an error code and alarm message if the device detects any illegal parameter settings or functional faults.
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CAUTION The output adjustment function can match the 4mA and 20mA output to the reference meter such as a voltmeter. In the output adjustment, it is necessary to use the calibrated voltmeter and resistance. 8.8.2 Fixed Current Output This feature can be used to output a fixed current for loop checks.  In the case of using DD Call up the test output parameter (Loop test) and select the output signal.
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8-6 <8. OPERATION VIA HART CONFIGURATION TOOL (HART 5)> (2) Activating the multidrop mode About the procedure to call up the Polling display, please refer to the User’s Manual of each configuration tool. 1) Call up the parameter for protocol revision change • Procedure to call up the Chg universal rev display. DD NOTE When the same polling address is assigned for two or more field devices in multidrop mode, communication with these field devices is disabled.
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<8. OPERATION VIA HART CONFIGURATION TOOL (HART 5)> 8-7 b. Confirm the new HART protocol revision number Call up the Universal rev parameter, and confirm that the new HART revision number is displayed. • Procedure to call up the Universal rev. parameter. DD Device Setup → Detailed setup → Device information → Field device information → Revision #’s → Universal rev → Configuration → HART → Universal rev.
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8.9 8-8 <8.
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8-9 <8.
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8-10 <8.
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8-11 <8. OPERATION VIA HART CONFIGURATION TOOL (HART 5)> Parameter Data Read/Write of BRAIN Renewing protocol (*2) (*1) 5 Review 1 Review1 2 Review2 3 Review3 4 Review4 – – – – (*3) Hot Key Configration 1 PV Span 2 Write Protect Menu 1 Write protect 2 Enable Wrt 10min 3 New Password 4 Software Seal W B23/C42 S R W W R P20 – – P23 D – – D *1: Data Renewing D: Periodic Data Renewing S: Discretionary Data Renewing –: Others (Method, etc...
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8-12 <8.
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8-13 <8. OPERATION VIA HART CONFIGURATION TOOL (HART 5)> 8.
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C Diag and Service D Easy Setup 8-14 <8.
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Parameter Data Read/Write of BRAIN Renewing protocol (*2) (*1) E Configuration 8-15 <8.
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8-16 <8.
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F Calibration G Write Protect 8-17 <8.
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9. OPERATION VIA HART CONFIGURATION TOOL (HART 7) This Chapter describes the device (AXR) operation procedures using a HART configuration Tool (such as FieldMate). NOTE IMPORTANT Protocol revision supported by HART configuration tool must be the same or higher than that of the device. Protcol revision supported by HART configuration tool For more details regarding the operations for the HART configuration tool, refer to the HART configuration tool operations manual.
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Configuration Tool, download them from the official HART programming sites, otherwise, contact the respective vendors of the Configuration Tool for its upgrade information. 1. Confirmation of the device revision for AXR Connect the Configuration Tool to the AXR. The device revision can be checked as follows. 9.2.2 Device Type Manager (DTM) and Device Revision When configure the parameters using FieldMate, use the DTM (Device Type Manager) referring to the following table.
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<9. OPERATION VIA HART CONFIGURATION TOOL (HART 7)> 9.5 NOTE Before updating any setting, remember to always check the parameter content you want to change as described in Chapter 6: Parameter Description. NOTE In case of HART Configuration, the parameters are displayed in English only. Even if the language with the exception of English is selected at “Language” setting display, the parameters are displayed in English upon HART Configuration Tool. 9.
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9.7 9-4 <9. OPERATION VIA HART CONFIGURATION TOOL (HART 7)> Self-diagnostic Functions The HART configuration tool can be used to run self-diagnostics on a device and check for incorrect data settings. (1) Using DD and DTM The Self test and Status commands are available for self-diagnostics. When Self test is run, the display unit shows an error code and alarm message if the device detects any illegal parameter settings or functional faults.
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• Procedure of device variable simulation Step 1 Call up the parameter 2 Selection of Device Variable [Root Menu] → Diagnosis/ Service → Test → Simulate Select one parameter from the list below Off PV (Instantanous flow rate) SV (Forward totalization value) TV (Reverse totalization value) QV (Differential totalization value) % Range (% in output) Loop Current (current output) 3 Setting of Value Input the simulate value 4 Setting of Data quality Select one parameter from the list below Bad
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9.8.3 Burst Mode When the Burst mode is enabled, the transmitter continuously sends up to three data listed in Table 9.8.1. Refer to the subsection 9.8.3.1 Burst Message for details. When the Burst mode is set to “Wired HART Enabled”, transmitter continuously sends alarm signal also. Refer to subsection 9.8.3.2 Event Notification for detail. Table 9.8.1 9-6 <9. OPERATION VIA HART CONFIGURATION TOOL (HART 7)> When changing the setting of Burst mode, set “Off” to the Burst mode.
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9-7 <9. OPERATION VIA HART CONFIGURATION TOOL (HART 7)> (2) Burst mode setting procedure • Procedure to call up the display [Root Menu] → Detailed setup → HART output → Burst Condition → Burst Message 1,2 or 3 → Burst Command DD DTM a. Burst Command Burst Command Send to the device Cmd9 Burst Command? Cmd1, Cmd2, Cmd3, Cmd48 Burst Variable Code b. Burst Variable Code Send to the device Update Period Max Update Period c.
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a. <9. OPERATION VIA HART CONFIGURATION TOOL (HART 7)> Burst Command Select the transmission data at Burst Command parameter. Burst Command Cmd1: PV Cmd2: % range/current Command parameter Variable assigned to PV % range/current (Output in % and Loop current) Cmd3: Dyn vars/current Process vars/current (Loop current, PV, SV, TV, QV) Cmd9: Device vars Process vars/% range/current w/Status Mapping by user Cmd48: Read Self diagnosis information Additional Device Status b.
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e. <9. OPERATION VIA HART CONFIGURATION TOOL (HART 7)> Burst Mode When the Burst mode is set to “Wired HART Enabled”, the transmitter starts to send the data. • Procedure to call up the display DD DTM [Root Menu] → Detailed setup → HART output → Burst condition → Burst Message 1,2 or 3 → Burst mode → Wired HART Enabled 9.8.3.2 Event Notification When a setting change and a change of the Selfdiagnostics occur, device detect it as an event and can transmit an alarm signal continuously.
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b) <9. OPERATION VIA HART CONFIGURATION TOOL (HART 7)> Acknowledge Event Notification Execute Acknowledge Event Notification method. 1) Enter “the event number which is confirmed in a) 5” into “Enter Event Number”. 2) OK. 3) Set “Select Transaction” to “Trans 1 : Send Acknowledge”. 4) OK. 5) Confirm “Even Status” is 0x00.
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To release multidrop mode, call up the Poll addr display and set the address to “0” and set the Loop current mode to “Enabled”. 9.8.5 Switching HART Protocol Revision NOTE When using a FieldMate, close the main display of FieldMate. When the output signal code is “-J”, HART protocol revision of the device can be selectable from 5 or 7. The HART protocol revision is set and shipped as specified in the order. To change the HART protocol revision after shipment, follow the procedure shown below.
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9.9 9-12 <9. OPERATION VIA HART CONFIGURATION TOOL (HART 7)> Menu Tree for DD and DTM (HART 7) ■ DD Root Menu Device setup Flow Rate (%) Flow Rate (mA) Flow Span Process variables Diagnosis/Service Easy setup Detailed setup Review A B C D E Easy setup Detailed setup Review Diag/Service Process Variables C D E B A ■ DTM Root Menu Device Configuration - Configure/Setup Diagnostic - Device Diagnostics Process Variable F0905.
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Parameter Data Read/Write of BRAIN Renewing protocol (*2) (*1) B Diagnosis/Service Time Stamp Status group 1 Status group 2 Status group 3 Status group 4 Status group 5 Status group 6 Status group 7 Device status Ext dev status Device Diagnostic Status 0 Cfg chng count Reset cfg chng flag D D D D D D D D D D D D – R R R R R R R R R R R R W – – – – – – – – – – – – – Self test Device reset W W – – – – Adjustment Auto Zero Execute Auto Zero Exec Auto Zero Time Flow Zero(IEL) Flow Zero(IEM) Flow
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9-14 <9.
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9-15 <9.
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9-16 <9.
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9-17 <9.
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9-18 <9.
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10. <10. ACTUAL OPERATION> 10-1 ACTUAL OPERATION After you have installed the flowtube into the process piping, wired the input/output terminals, set up the required parameters, and performed a pre-operation zero adjustment, the magnetic flowmeter should output an accurate flow signal from its terminals as soon as flow of the fluid to be measured begins. IMPORTANT Warm up the instruments for at least 30 minutes. Perform flow measurement 30 minutes after turning on the power.
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10-2 <10. ACTUAL OPERATION> 10.1.1 Zero Adjustment Using Display Unit Switches This section describes the procedure for zero adjustment using the display unit switches. (For more details regarding setting methods using these switches, refer to Chapter 5: Basic Operating Procedures.) The parameters for zero adjustment are B50/M10: Auto Zero Exe (and either of these can be used to carry out this procedure). For more details regarding these parameters, refer to Chapter 6: Parameter Description.
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<10. ACTUAL OPERATION> Auto zero adjustment function is being executed (about 450 seconds). Now Auto Zero Executing 0 Sub-item Parameter Search Mode Major item Sub-item selection (D) 10-3 100 M:Adjustment 21:Adjustment 20mA 10:Auto Zero Exe 11:Autozero Time When zero adjustment function has been completed, the system automatically returns to the sub-item selection screen (D). F1001.EPS NOTE The results of M10: Auto Zero Exe can be displayed using M12, M13 and M14.
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11. 11-1 <11. MAINTENANCE> MAINTENANCE WARNING • Maintenance work must be carried out by the trained personnel having knowledge of safety standard and not by operators. • Do not open the cover in wet weather or high humidity. • When opening the cover, wait for more than 5 minutes after turning off the power. Furthermore, opening of the cover must also be carried out by the trained personnel having knowledge of safety standard. 11.1 Changing Direction of Electrical Connection 11.1.
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11.2 Components Replacement 11.2.1 Display Unit Replacement CAUTION WARNING • Component replacement must be carried out by the trained personnel having knowledge of safety standard. No operator shall be permitted to perform any operations relating to component replacement. • Component replacement and the associated operations must be carried out by expert engineer or skilled personnel and not by operators.
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11-3 <11. MAINTENANCE> (3) Assembling the Display Unit (1) Align the display unit in a straight with its connector located its backside facing the connector of amplifier assembly and then make the required connection. (2) Secure the display unit using its four mounting screws. Turn the display unit 90 degrees clockwise F1105.ai Figure 11.2.3 Assembling the Display Unit NOTE F1104.ai Figure 11.2.
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11.2.2 Amplifier Replacement <11. MAINTENANCE> 11-4 (7) Secure the display unit using its four mounting screws. IMPORTANT In case of amplifier replacement, it is necessary to perform the parameter resetting. For parameters, refer to Chapter 6: Parameter Description. Connector 1 (1) Removing the Amplifier Assembly (1) Turn off the power. (2) Remove the cover. (3) Hold the display unit with your hand and loosen the four mounting screws.
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11.3 Setting of Switches 11.3.2 Setting of Write Protect Switch 11.3.1 Setting of Burnout Switch The burnout function sets the direction of current output in situations during occurring the system alarm. Upon shipment from the manufacturing plant, the burnout direction is set to High (21.6 mA or more); however, in cases where the optional code C1 has been specified, the output direction will be set to Low (3.2 mA or less).
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<11. MAINTENANCE> 11-6 11.4 Adhesion diagnostic function The long-term measurement of adhesive fluids may adversely affect the flow measurement due to insulating materials adhering to the electrode, which could cause the output vibration to increase or make it impossible to measure the flow rate. This function checks the level of adhesion by measuring the resistance value. NOTE Adhesion Diagnostic Function • This function diagnose adhesion using electrode resistance values.
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11.4.1 11-7 <11. MAINTENANCE> Adhesion Diagnostic Using Display Unit Switches This section describes the procedure for Adhesion Diagnostic using the display unit switches. (For more details regarding setting methods using these switches, refer to Chapter 5: Basic Operating Procedures.) The parameters that are relevant to the adhesion diagnostic function are as follows.
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<11. MAINTENANCE> Now Adhesion Check Executing 0 100 Fixed Current (4 mA) Sub-item Parameter Search Mode Major item Sub-item selection (D) K:Diagnosis 11:Adh Status 10:Adhesion Check 23:Empty Level F1110.EPS 11-8 Adhesion Diagnostic function is being executed (about 5 minutes). When Adhesion Diagnostic function has been completed, the system automatically returns to the sub-item selection screen (D).
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11.5 Regular Inspection Items (1) Inspection of moisture-proofing inside the terminal box: Once/year (2) Retightening of piping joint screws: About twice/ year (3) Inspection of electrodes and lining (in case of adhesive and/or abrasive fluids, etc.) Determine the period of regular inspection as necessary. 11.6 Insulation Resistance Test, Dielectric Strength Test NOTE Note the following precautions when conducting the insulation resistance test and dielectric strength test.
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<11. MAINTENANCE> 11-10 11.7 Troubleshooting Although magnetic flowmeters rarely require maintenance, failures may occur when the instrument is not operated correctly. This section describes troubleshooting procedures where the cause of the breakdown is identified through receiver indication. 11.7.1 No Indication START Is an error being displayed? Check the converter display. Is an error being displayed? YES Examine in accordance with section 6.5: Alarms.
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<11. MAINTENANCE> 11-11 11.7.2 Unstable Zero START Investigate whether or not the flowtube is filled with fluid and that it is free of bubbles. *1: When checking for bubbles, it is convenient if there is a gas vent hole on the flowtube’s downstream side. *1 Is the flowtube completely full of fluid? NO Particular care must be taken in the case of horizontal mounting. In order to ensure complete filling of the tube, either adjust the mounting position or switch to vertical mounting.
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<11. MAINTENANCE> 11-12 11.7.3 Disagreement Between Indication and Actual Flow START Are parameters set correctly? NO Set the parameters correctly. YES Examine the condition of the fluid in the flowtube, of bubbles, and of grounding. Was zero adjustment carried out correctly? NO Execute zero adjustment when the flowtube is filled completely with fluid and when the fluid is not moving.
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12-1 <12. OUTLINE> 12. OUTLINE n STANDARD SPECIFICATIONS l Converter The contents of (*1) and (*2) described in the converter specifications are follows. *1: *2: One output can be selected from pulse, alarm, or status through the parameter setting. For models without an indicator, the configuration tool (Such as handheld terminal or FieldMate, etc.) is necessary to set or change parameters. Excitation Method: • Dual frequency excitation: Size 25 to 200 mm (1 to 8 in.
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<12. OUTLINE> HART Communication Signal: BRAIN or HART communication signal (superimposed on 4 to 20 mA DC signals) Note: HART is a registered trademark of the HART Communication Foundation. Conditions of Communication Line: Supply Voltage: 20.6 to 35 V DC Load Resistance: 250 to 600 Ω (including cable resistance) Refer to Figure 2. HART Protocol Revision: HART protocol revision can be selected from 5 or 7 when ordering. (“-J” only) The protocol revision can be changed by user configuration.
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Totalizer Display Function (*2): The flow rate is counted one count at a time according to the setting of totalization pulse weights. For forward and reverse flow measurement functions, the totalized values of the flow direction (forward or reverse) and the flow direction are displayed on the indicator together with the units. The difference of totalized values between the forward and reverse flow rate can be displayed.
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Zero Adjustment Function (*2): By using the parameter setting, zero adjustment is carried out to ensure that the output for zero flow is 0%. Zero adjustment should be carried out only when the flowtube is filled with measurement fluid and the flow is completely stopped by closing the valves. During zero adjustment (450 seconds), the current output is 10.4 mA. Flowtube Material: Size 25 to 100 mm (1 to 4 in.) l Flowtubes Part Name Material Housing Stainless steel-JIS SUS304 (AISI 304 SS/EN 1.
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Grounding Ring/Grounding Electrode; • Grounding Ring (plate type) Stainless steel-JIS SUS316 (AISI 316 SS/EN 1.4401 equivalent), Stainless steel-JIS SUS316L (AISI 316L SS/EN 1.4404 equivalent), Hastelloy*1 C276 equivalent • Grounding Electrode (electrode type)*2 Fluorocarbon PFA lining + grounding electrode (Tantalum, Platinum-Iridium) *1: Hastelloy is a registered trademark of Haynes International Inc.
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n STANDARD PERFORMANCE Accuracy: General-Purpose Use; Size in mm (in.) 1 ≤ Vs < 2 (3.3 ≤ Vs < 6.7) 2 ≤ Vs ≤ 10 (6.7 ≤ Vs ≤ 33) 0.3 ≤ Vs < 1 (1 ≤ Vs < 3.3) 150 to 200 (6 to 8) 1 ≤ Vs < 2 (3.3 ≤ Vs < 6.7) 2 ≤ Vs ≤ 10 (6.7 ≤ Vs ≤ 33) Explosion proof Type; Size in mm (in.) Vs: Span setting value (m/s) Span in m/s (ft/s) 0.3 ≤ Vs < 1 (1 ≤ Vs < 3.3) 25 to 100 (1 to 4) 12-6 <12. OUTLINE> Accuracy 0.3 ≤ Vs < 1 (1 ≤ Vs < 3.3) ±0.25 cm/s (at indications less than 50% of span) ±(0.4+0.
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Accuracy for Multi-drop of HART (generally accepted values) Vs: Span setting value (m/s) Size in mm (in.) 12-7 <12. OUTLINE> Span in m/s (ft/s) Accuracy 0.3 ≤ Vs < 1 (1 ≤ Vs < 3.3) ±(0.4+0.3/Vs)% of span 1 ≤ Vs < 2 ± 0.5% of span (3.3 ≤ Vs < 6.7) 25 to 200 (1 to 8) ± 0.25% of span (at indications less than 50% of span) 2 ≤ Vs ≤ 10 (6.7 ≤ Vs ≤ 33) ± 0.5% of rate (at indications 50% or more of span) Repeatability (Reference): ±0.2% of rate (When the flow velocity is 1.
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n NORMAL OPERATING CONDITIONS Ambient Temperature: General-purpose Use: –40 to +55°C (–40 to +131°F) Explosion proof type: In the case of explosion proof type, refer to description of “ Ambient Temperature” “Enclosure” in “HAZARDOUS AREA CLASSIFICATION” *1: Minimum temperature should also be limited according to minimum fluid temperature of flow tube’s specification. Refer to description of “Fluid Temperature and Pressure”.
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<12.
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<12. OUTLINE> 12-10 *5: Allowable fluid pressure should also be limited according to fluid temperature and pressure. *6: Even when DIN PN10, 16, or 40 is required for a model of size 25 to 50 mm (1.0 to 2.0 in.), select PN40 (Process connection code: AD4) because there is no difference in the dimensions of the mating faces. Even when DIN PN10 or 16 is required for a model of size 65 to 150 mm (2.5 to 6.0 in.
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<12.
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<12. OUTLINE> 12-12 *1: For explosion proof types, specify types of explosion proof certification using the optional codes. For the TIIS flameproof type, select optional code G11. Available only for JIS G1/2 female electrical connections. Available only for wiring of using a flameproof packing adapter approved by Yokogawa. The flameproof metal conduit wiring for TIIS flameproof type is not permitted.
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12-13 <12. OUTLINE> n OPTIONAL SPECIFICATIONS ○Available – : Not available Applicable Model Down-scale of output status at alarms (Burnout) Mass Unit Setting A lightning protector is built into the power supply and digital output terminals. Supply voltage: 14.7 to 32 V DC Allowable current: Max 6000 A (1×40 μs), Repeating 1000 A (1×40 μs) 100 times Applicable Standards: IEC61000-4-4, IEC61000-4-5 The current output is set to 3.
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12-14 <12.
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12-15 <12. OUTLINE> Applicable Model Specifications Code AXR***C Item Explosion proof AXR***G General ○ ○ SC A flow test near 0, 25, 50, 75, and 100% of the user-specified span is performed instead of the standard flow test and a test certificate (QIC) is submitted. Specify the span flow rate and unit when placing an order. Specify the span (100% flow span) whose corresponding flow velocity lies between 1.0 to 10 m/s and that is less than the maximum line capacity.
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12-16 <12. OUTLINE> n EXTERNAL DIMENSIONS ● Lay Length Code 1, AXR080-AXR100, Wafer Type 164 (6.46)*1 1 Ground Terminal (M4) 49 A Size 080 80 (3) Lining code A 120 Face-to*2 face length L (4.72) 129 Outside øD (5.08) dia. 77 Inter diameter of Grounding ring ød (3.03) 129 Width W (5.08) 157 H1 Height (6.18) 319 Max. Hi (12.54) Height 5.8 Weight kg (lb) (12.8) 100 100 (4) Hi ) ø(d H1 Size code øD 73 1 90(3.54) (2.87) (1.93) 1 A 154(6.06) 33 *1 (1.30) ø128(5.
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12-17 <12. OUTLINE> ● Lay Length Code 2, AXR025, Wafer Type Unit: mm (approx. inch) 164 (6.46)*1 C 1 A 28 (1.10) 2 Lining code A 93 (3.66) 67.5 (2.66) 28 (1.10) 74.5 (2.93) 92 (3.62) 253.5 (9.98) 3.6 (7.8) Face-to*2 face length L Outside øD dia. Inter diameter of Grounding ring ød Width W Height H1 Max. Height Hi Weight kg (lb) øD H1 25 (1) Hi Size ø128 (5.04) 025 90(3.54) (1.30) Ground Terminal (M4) Size code 154 (6.06) 33*1 33 70(2.76) (1.30) 18.5(0.
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12-18 <12. OUTLINE> ● Lay Length Code 2, AXR080-AXR100, Wafer Type Unit: mm (approx. inch) 164 (6.46)*1 1 A 2 154 (6.06) 33*1 (1.30) ø128 (5.04) Ground Terminal (M4) 90(3.54) 100 Size 80 (3) 100 (4) Lining code A A Face-to*2 face length L Outside øD dia. Inter diameter of Grounding ring ød 160 (6.30) 129 (5.08) 77 (3.03) 129 (5.08) 157 (6.18) 319 (12.54) 6.5 (14.4) 180 (7.09) 155 (6.10) 102 (4.02) 155 (6.10) 183 (7.02) 345 (13.56) 8.9 (19.6) Width W Height H1 Max.
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12-19 <12. OUTLINE> ● Lay Length Code 1, AXR025, JIS/ANSI/DIN Flange Type 164 (6.46)*1 1 A C 1 49 73 N-øh (ød) øD øC B D 4 (2.87) (1.93) B J 2 B A 1 1 B A 2 H1 AXR025 90(3.54) Hi B J 1 G 154 (6.06) 33*1 (1.30) 33 70(2.76) (1.30) 18.5(0.73) ø128 (5.04) Ground Terminal (M4) Unit: mm (approx. inch) t*2 (H2) 28 (1.
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12-20 <12. OUTLINE> ● Lay Length Code 1, AXR040-AXR065, JIS/ANSI/DIN Flange Type 164 (6.46)*1 33*1 (1.30) (ød) B D 2 B D 4 t*2 (H2) 1 N-øh H1 1 A B A 1 1 B A 2 Hi AXR040 G AXR050 C AXR065 49 B J 1 B J 2 (1.93) ø128 (5.04) Ground Terminal (M4) 154 (6.06) 90(3.54) 73 33 70(2.76) (1.30) 18.5(0.73) (2.87) 28 (1.10) Unit: mm (approx. inch) øD øC θ° Process Connection BJ2 (JIS20K) BJ1 (JIS10K) Size code 040 40 (1.5) Size Lining code 050 50 (2) 065 65 (2.5) 040 40 (1.
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12-21 <12. OUTLINE> ● Lay Length Code 1, AXR080-AXR100, JIS/ANSI/DIN Flange Type 164 (6.46)*1 B A 2 B D 2 øD t*2 (H2) N-øh ) ø ( d Hi 1 73 B J 2 B G 1 1 B A 1 H1 1 A 90(3.54) 49 B J 1 AXR080 G AXR100 C 154 (6.06) 33*1 (1.30) (2.87) (1.93) Ground Terminal (M4) 33 70(2.76) (1.30) 18.5(0.73) Unit: mm (approx. inch) ø128 (5.04) 28 (1.10) øC θ° Process Connection 100 100 (4) 080 80 (3) Size 0 Outside dia.
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12-22 <12. OUTLINE> ● Lay Length Code 1, AXR150-AXR200, JIS/ANSI/DIN Flange Type Unit: mm (approx. inch) 164 (6.46)*1 28 (1.10) 33*1 (1.30) N-øh (H2) 1 ød Hi B J B G 1 C A t*2 1 H1 1 A 73 49 (2.87) (1.93) B A B D AXR150 G AXR200 90 (3.54) ø128 (5.04) Ground Terminal (M4) 154 (6.06) 33 70(2.76) (1.30) 18.5(0.73) C D C J C G 1 øC øD θ° Process Connection BJ1/CJ1 (JIS 10K) Size code Size 0 Outside dia. øD Thickness t *2 Inter diameter of Grounding ring ød Pitch circle dia.
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12-23 <12. OUTLINE> ● Flameproof Packing Adapter for TIIS Flameproof Type (Optional code G11 or G32) Unit: mm (approx. inch) T1 Adapter body (M. Screw) O-Ring Packing case 16.5 (0.65) Hexagon socket set screw Packing (*) 18 (0.71) Hexagon socket set screw O-Ring L F O-Ring C Washer G Union nut *Packing Packing gland (Choose from the table below Clamp ring depend on cable outside diameter) D Clamp nut T2 O-Ring B.
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<12. OUTLINE> 12-24 n SIZING DATA (Measurable flow velocity is from 0 m/s.) General-purpose Use; 0 0 20 15 0 10 65 40 80 *Measurable flow velocity is from 0 m/s. Size: mm 50 SI Units 25 Flow velocity m/s 10.0 5.0 1.0 0.5 0.3 1,000 100 10 1 0.1 0.01 Flow rate (m3/h) Size: inch 8 6 4 2 2.5 3 * Measurable flow velocity is from 0 ft/s. 1.5 English Units 1 Flow velocity ft/s 33 10 5.0 2.0 1.0 0.1 1.0 10,000 1,000 100 10 Flow rate (GPM) F1223.
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13. <13. PED (PRESSURE EQUIPMENT DIRECTIVE)> PED (PRESSURE EQUIPMENT DIRECTIVE) This chapter describes further requirements and notices concerning the PED (Pressure Equipment Directive). The description in this chapter is prior to other description in this User’s Manual.
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14. 14-1 <14. EXPLOSION PROTECTED TYPE INSTRUMENT> EXPLOSION PROTECTED TYPE INSTRUMENT In this section, further requirements and differences for explosion proof type instrument are described. WARNING Magnetic flowmeters with the model name AXRC are products which have been certified as explosion proof type instruments. Strict limitations are applied to the structures, installation locations, external wiring work, maintenance and repairs, etc. of these instruments.
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14-2 <14. EXPLOSION PROTECTED TYPE INSTRUMENT> Digital Output: ON; 2Vdc, 120mA max., OFF; 30Vdc max., 4mA, Um=250V Excitation Circuit: 29 V max. Enclosure: IP66/IP67 Process Temperature: Maximum Surface Maximum Process Minimum Process Temperature Temperature Temperature T90°C (+194°F) +70°C (+158°F) –30°C (–22°F) T110°C (+230°F) +85°C (+185°F) –30°C (–22°F) T130°C (+266°F) +130°C (+266°F) –30°C (–22°F) Ambient Temp.
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14-3 <14. EXPLOSION PROTECTED TYPE INSTRUMENT> (6) Data Plate 14.2 FM (1) Technical Data MODEL: Specified model code SUFFIX: Suffix codes of the model code STYLE: Specified style code SIZE: Nominal size of apparatus METER FACTOR: Sensor constant number of apparatus SUPPLY: Supply voltage of apparatus OUTPUT: Output signal of apparatus FLUID TEMP.: Fluid temperature of apparatus FLUID PRESS: Fluid pressure of apparatus AMB. TEMP.
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14.3 IECEx (3) Operation WARNING WARNING • “OPEN CIRCUIT BEFORE REMOVING COVERS.” • “SEALS ALL CONDUITS WITHIN 18 INCHES” in hazardous locations. • When installed in Division 2, “SEALS NOT REQUIRED” • Take care not to generate mechanical spark when access to the instrument and peripheral devices in hazardous locations.
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14-5 <14. EXPLOSION PROTECTED TYPE INSTRUMENT> WARNING If the AXR is mounted in an area where the use of EPL Db equipment is required, it shall be installed in such a way that the risk from electrostatic discharges and propagating brush discharges caused by rapid flow of dust is avoided. The grounding terminals are located on the inside and outside of the terminal area. Connect the cable to grounding terminal in accordance with wiring procedure 1) or 2).
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<14. EXPLOSION PROTECTED TYPE INSTRUMENT> (6) Data Plate 14-6 14.4 TIIS CAUTION MODEL: Specified model code SUFFIX: Suffix codes of the model code STYLE: Specified style code SIZE: Nominal size of apparatus METER FACTOR: Sensor constant number of apparatus SUPPLY: Supply voltage of apparatus OUTPUT: Output signal of apparatus FLUID TEMP.: Fluid temperature of apparatus FLUID PRESS: Fluid pressure of apparatus AMB. TEMP.
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14-7 <14. EXPLOSION PROTECTED TYPE INSTRUMENT> l Intrinsically safety circuit • Maximum Voltage (Uo): 14 V • Maximum Current (Io): 17 mA • Maximum Electrical Power (Po): 0.12 W l Fluid Temperature: -20 to 130°C l Ambient Temperature: –20 to 55°C l Grounding: Grounding resistance of 10 Ω or less is necessary for class A grounding terminal. Grounding resistance of 100 Ω or less is necessary for Functional grounding terminal.
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(e) Insert the cable through the union cover, the union coupling, the clamp nut, the clamp ring, the gland, the washer, the rubber packing, and the packing box, in that order. (f) Insert the end of the cable into the terminal box. (g) Tighten the union cover to grip the cable. When tightening the union cover, tighten approximately one turn past the point where the cable will no longer move up and down. Proper tightening is important.
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A1-1 Appendix 1. Safety Instrumented Systems Installation WARNING The contents of this appendix are cited from exida.com safety manual on the AXR series flowmeter specifically observed for the safety flowmeter purpose. When using the AXR for Safety Instrumented Systems (SIS) application, the instructions and procedures in this section must be strictly followed in order to preserve the flowmeter for that safety level. A1.
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Table A1.2 A1-2 Proof Testing Testing method Analog Output Loop Test and Calibration 1. Bypass the safety PLC or the final element interface or take other appropriate action to avoid a false trip. Tools required • BT200 • HART configuration tool ●Analog Output Loop Test: 2.
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A1.2.10 Lifetime Limits The expected lifetime of the AXR is 10 years. The reliability data listed the FMEDA report is only valid for this period. The failure rates of the AXR may increase sometime after this period. Reliability calculations based on the data listed in the FMEDA report for AXR lifetimes beyond 10 years may yield results that are too optimistic, i.e. the calculated Safety Integrity Level will not be achieved. A1.
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A1-4 A1.3.
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INSTALLATION AND OPERATING PRECAUTIONS FOR TIIS FLAMEPROOF EQUIPMENT Apparatus Certified Under Technical Criteria (IEC-compatible Standards) 1. General The following describes precautions on electrical apparatus of flameproof construction (hereinafter referred to as flameproof apparatus) in explosionprotected apparatus.
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(4) Path length of joint surface On a joint surface, the length of the shortest path through which flame flows from the inside to outside of the flameproof enclosure. This definition cannot be applied to threaded joints. (5) Gaps between joint surfaces The physical distance between two mating surfaces, or differences in diameters if the mating surfaces are cylindrical.
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(2) Flameproof Metal Conduit Wiring • For the flameproof metal conduit wiring or insulated wires shall be used as recommended by the USER’S GUIDELINES for Electrical Installations for Explosive Gas Atmospheres in General Industry, published in 1994. • For conduit pipes, heavy-gauge steel conduits conforming to JIS C 8305 Standard shall be used.
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CAUTION Do not attempt to re-process threaded connections or refinish joints or mating surfaces. (c) Unless otherwise specified, the electrical circuitry and internal mechanisms may be repaired by component replacement, as this will not directly affect the requirements for flameproof apparatus (however, bear in mind that the apparatus must always be restored to its original condition).
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Revision Information  Title  Manual No. Edition 1st 2nd 3rd : AXR Magnetic Flowmeter Integral Flowmeter : IM 01E30D01-01EN Data Sep. 2009 Nov. 2010 Aug. 2012 Page – 1-2 3-1 3-7 to 3-12 (3), (4) (3) 4-2 4-6 5-1 8-5 11-1 to 11-22 4.3 (1) 12-1 (1) 8.4.6 13-1 to 13-4 1-1 4-1 to 4-15 4-6 6-3, 6-11 6-6, 6-22 6-7, 6-24 6-12, 6-32 6-46 6-46 8-1 to 8-17 9-1 to 9-18 12-1 B41, H11 D13 E13 J10 8. 9. 12-2 12-3 12-3, 12-12 12-3 12-5 to 12-7 12-6 12-1 to 12-21 14-1 to 14-10 A1-1 to A1-3 12. 14.