User’s Manual Model EJA310A, EJA430A and EJA440A Absolute Pressure and Gauge Pressure Transmitters IM 01C21D01-01E IM 01C21D01-01E Yokogawa Electric Corporation 11th Edition
CONTENTS CONTENTS 1. INTRODUCTION ............................................................................................ 1-1 Regarding This Manual ................................................................................. 1-1 1.1 For Safe Use of Product ........................................................................ 1-1 1.2 Warranty ................................................................................................ 1-2 1.3 ATEX Documentation .............................
CONTENTS 6.4 Wiring .................................................................................................. 6-2 6.4.1 Loop Configuration ....................................................................... 6-2 (1) General-use Type and Flameproof Type ...................................... 6-2 (2) Intrinsically Safe Type ................................................................... 6-2 6.4.2 Wiring Installation .........................................................................
CONTENTS 8.4 Displaying Data Using the BT200 ..................................................... 8-15 8.4.1 Displaying Measured Data ......................................................... 8-15 8.4.2 Display Transmitter Model and Specifications ........................... 8-15 8.5 Self-Diagnostics ................................................................................ 8-16 8.5.1 Checking for Problems ...............................................................
1. INTRODUCTION 1. INTRODUCTION Thank you for purchasing the DPharp electronic pressure transmitter. • The following safety symbol marks are used in this manual: The DPharp Pressure Transmitters are precisely calibrated at the factory before shipment. To ensure correct and efficient use of the instrument, please read this manual thoroughly and fully understand how to operate the instrument before operating it.
1. INTRODUCTION (f) Modification • Yokogawa will not be liable for malfunctions or damage resulting from any modification made to this instrument by the customer. • In case of high process temperature, care should be taken not to burn yourself because the surface of body and case reaches a high temperature. • The instrument installed in the process is under pressure. Never loosen the process connector bolts to avoid the dangerous spouting of process fluid. 1.
1. INTRODUCTION 1.3 ATEX Documentation SF This procedure is only applicable to the countries in European Union. Kaikkien ATEX Ex -tyyppisten tuotteiden käyttöhjeet ovat saatavilla englannin-, saksan- ja ranskankielisinä. Mikäli tarvitsette Ex -tyyppisten tuotteiden ohjeita omalla paikallisella kielellännne, ottakaa yhteyttä lähimpään Yokogawa-toimistoon tai -edustajaan. GB All instruction manuals for ATEX Ex related products are available in English, German and French.
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2. HANDLING CAUTIONS 2. HANDLING CAUTIONS This chapter describes important cautions regarding how to handle the transmitter. Read carefully before using the transmitter. The EJA-A Series pressure transmitters are thoroughly tested at the factory before shipment. When the transmitter is delivered, visually check them to make sure that no damage occurred during shipment. Also check that all transmitter mounting hardware shown in Figure 2.1 is included.
2. HANDLING CAUTIONS (a) Ambient Temperature Avoid locations subject to wide temperature variations or a significant temperature gradient. If the location is exposed to radiant heat from plant equipments, provide adequate thermal insulation and/or ventilation. (b) Ambient Atmosphere Avoid installing the transmitter in a corrosive atmosphere.
2. HANDLING CAUTIONS circuiting SUPPLY terminals. Leave this resistor connected at least one second to discharge any static potential. Do not touch the terminals while it is discharging. • Dielectric Strength Test 1) Short-circuit the + and – SUPPLY terminals in the terminal box. 2) Turn OFF the dielectric strength tester. Then connect the tester between the shorted SUPPLY terminals and the grounding terminal. Be sure to connect the grounding lead of the dielectric strength tester to the ground terminal.
2. HANDLING CAUTIONS Note 3. Installation • Barrier must be installed in an enclosure that meets the requirements of ANSI/ISA S82.01. • Control equipment connected to barrier must not use or generate more than 250 V rms or V dc. • Installation should be in accordance with ANSI/ISA RP12.6 “Installation of Intrinsically Safe Systems for Hazardous (Classified) Locations” and the National Electric Code (ANSI/NFPA 70). • The configuration of associated apparatus must be FMRC Approved.
2. HANDLING CAUTIONS 2.9.2 CSA Certification [Nonincendive] Hazardous Location a. CSA Intrinsically Safe Type Caution for CSA Intrinsically safe type. (Following contents refer to “DOC No. ICS003-A12 P.1-1 and P.1-2.”) Note 1. Model EJA Series differential, gauge, and absolute pressure transmitters with optional code /CS1 are applicable for use in hazardous locations Certificate: 1053843 • Applicable Standard: C22.2 No.0, No.0.4, No.25, No.30, No.94, No.142, No.157, No.
2. HANDLING CAUTIONS Note 4. Maintenance and Repair • The instrument modification or parts replacement by other than authorized representative of Yokogawa Electric Corporation and Yokogawa Corporation of America is prohibited and will void Canadian Standards Explosionproof Certification. Non-Hazardous Hazardous Locations Division 1 Locations Non-hazardous Location Equipment 42 V DC Max. 4 to 20 mA DC Signal 50 cm Max.
2. HANDLING CAUTIONS • Electrical Connection: The type of electrical connection is stamped near the electrical connection port according to the following marking. T0202.EPS Location of the marking F0210.EPS Note 4. Operation • WARNING: WHEN AMBIENT TEMPERATURE ≥ 55°C, USE THE HEAT-RESISTING CABLES ≥ 90°C. Note 5.
2. HANDLING CAUTIONS Note 1. Model EJA Series differential, gauge, and absolute pressure transmitters with optional code /KS2 for potentially explosive atmospheres: • No. KEMA 02ATEX1030 X • Applicable Standard: EN50014:1997, EN50020:1994, EN50284:1999 • Type of Protection and Marking code: EEx ia IIC T4 • Temperature Class: T4 • Enclosure: IP67 • Process Temperature: 120°C max. • Ambient Temperature: –40 to 60°C Note 2.
2. HANDLING CAUTIONS Note 2. In order to avoid confusion, unnecessary marking is crossed out on the label other than the selected type of protection when the transmitter is installed. 䊉 CENELEC ATEX Type of Protection “n” WARNING When using a power supply not having a nonincendive circuit, please pay attention not to ignite in the surrounding flammable atmosphere. In such a case, we recommend using wiring metal conduit in order to prevent the ignition.
2. HANDLING CAUTIONS (6) Name Plate 2.10EMC Conformity Standards Name plate EN61326-1 Class A, Table 2 (For use in industrial locations) EN61326-2-3 : Refer to USER'S MANUAL CAUTION Tag plate for flameproof type This instrument is a Class A product, and it is designed for use in the industrial environment. Please use this instrument in the industrial environment only.
2. HANDLING CAUTIONS EJA110A 160 0.01 1.6 EJA120A 0.5 0.01 0.005 EJA130A 420 0.01 4.2 Category*2 Article 3, paragraph 3 (SEP) Article 3, paragraph 3 (SEP) Article 3, paragraph 3 (SEP) EJA130A With code /PE3 420 0.01 4.2 III EJA310A 160 0.01 1.6 EJA430A 160 0.01 1.6 EJA440A 500 0.01 50 Article 3, paragraph 3 (SEP) Article 3, paragraph 3 (SEP) Article 3, paragraph 3 (SEP) EJA440A With code /PE3 500 0.01 50 III EJA510A 500 0.
3. COMPONENT NAMES 3. COMPONENT NAMES Vertical impulse piping type Process connection Pressure-detector section Process connector (Note 1) Cover flange Horizontal impulse piping type External indicator conduit connection (Note 1) External indicator conduit connection (Note 1) Terminal box cover Conduit connection CPU assembly Integral indicator (Note 1) Conduit connection Mounting screw Transmitter section Range-setting switch (Note 1) (See Subsection 7.
4. INSTALLATION 4. INSTALLATION 4.1 Precautions Vertical pipe mounting Before installing the transmitter, read the cautionary notes in Section 2.4, “Selecting the Installation Location.” For additional information on the ambient conditions allowed at the installation location, refer to Section 10.1 “Standard Specifications.” Transmitter mounting bolt IMPORTANT U-bolt nut • When welding piping during construction, take care not to allow welding currents to flow through the transmitter.
4. INSTALLATION Vertical pipe mounting (Process connector upside) U-bolt nut Transmitter mounting bolt 4.3 Changing the Process Connection The transmitter is shipped with the process connection specified at the time of ordering. To make a change such as modifying the drain (vent) plug(s) attached to the upside of the cover flange on shipment to be attached to the downside follow the procedure below.
4. INSTALLATION 4.4 Rotating Transmitter Section The DPharp transmitter section can be rotated in 90° segments. 4.5 Changing the Direction of Integral Indicator 1) Remove the two Allen screws that fasten the transmitter section and capsule assembly, using the Allen wrench. 2) Rotate the transmitter section slowly in 90° segments. 3) Tighten the two Allen screws to a torque of 5 N·m. IMPORTANT Do not rotate the transmitter section more than 180°.
5. INSTALLING IMPULSE PIPING 5. INSTALLING IMPULSE PIPING 5.1 Impulse Piping Installation Precautions 5.1.2 Routing the Impulse Piping (1) Process Pressure Tap Angles If condensate, gas, sediment or other extraneous material in the process piping gets into the impulse piping, pressure measurement errors may result. To prevent such problems, the process pressure taps must be angled as shown in Figure 5.1.2 according to the kind of fluid being measured.
5. INSTALLING IMPULSE PIPING (3) Impulse Piping Slope The impulse piping must be routed with only an upward or downward slope. Even for horizontal routing, the impulse piping should have a slope of at least 1/10 to prevent condensate (or gases) from accumulating in the pipes. 5.2 Impulse Piping Connection Examples Figure 5.2 shows examples of typical impulse piping connections.
6. WIRING 6. WIRING 6.1 Wiring Precautions IMPORTANT • Lay wiring as far as possible from electrical noise sources such as large capacity transformers, motors, and power supplies. • Remove electrical connection dust cap before wiring. • All threaded parts must be treated with waterproofing sealant. (A non-hardening silicone group sealant is recommended.) • To prevent noise pickup, do not pass signal and power cables through the same ducts.
6. WIRING (2) Intrinsically Safe Type For intrinsically safe type, a safety barrier must be included in the loop. 6.3.4 Check Meter Connection Connect the check meter to the CHECK + and – terminals (use hooks). • A 4 to 20 mA DC output signal from the CHECK + and – terminals. Hazardous Location (Note) Use a check meter whose internal resistance is 10 Ω or less.
6. WIRING (2) Flameproof Type Wire cables through a flameproof packing adapter, or using a flameproof metal conduit. 䊏 Wiring cable through flameproof packing adapter. • Apply a nonhardening sealant to the terminal box connection port and to the threads on the flameproof packing adapter for waterproofing. 6.5 Grounding Grounding is always required for the proper operation of transmitters. Follow the domestic electrical requirements as regulated in each country.
7. OPERATION 7. OPERATION 7.1 Preparation for Starting Operation The Model EJA310A, EJA430A and EJA440A pressure transmitter measures the pressure of liquids, gases, and steam. This section describes the operation procedure for the EJA430A as shown in Figure 7.1 (vertical impulse piping type, high-pressure connection: right side) when measuring a pressure. Vent plug (Fill plug) Tap valve Stop valve NOTE Confirm that the process pressure tap valve, drain valve, and stop valve are closed.
7. OPERATION Using the integral indicator • If the wiring system is faulty, the display stays blank. • If the transmitter is faulty, an error code will appear on the display according to the nature of the error. 7.2 Zero Point Adjustment Adjust the zero point after operating preparation is completed. IMPORTANT Do not turn off the power to the transmitter immediately after a zero adjustment. Powering off within 30 seconds after a zero adjustment will return the adjustment back to the previous settings.
7. OPERATION 7.2.1 When you can obtain Low Range Value from actual measured value of 0% (0 kPa, atmospheric pressure); 7.2.2 When you cannot obtain Low Range Value from actual measured value of 0%; Convert the actual measured value obtained by a digital manometer or a glass gauge into %. For pressure measurement using gauge pressure transmitters, follow the step below before zero point adjustment. 1) Close the tap valve (main valve).
7. OPERATION 7.3 Starting Operation 7.5 Venting or Draining Transmitter Pressure-detector Section After completing the zero point adjustment, follow the procedure below to start operation. Since this transmitter is designed to be self-draining and self-venting with vertical impulse piping connections, neither draining nor venting will be required if the impulse piping is configured appropriately for selfdraining or self-venting operation. 1) Confirm the operating status.
7. OPERATION 7.5.2 Venting Gas 6) Press the range-setting push-button. The integral indicator then displays “HSET.” 7) Apply a pressure of 3 MPa to the transmitter. (Note 1) 8) Turn the external zero-adjustment screw in the desired direction. The integral indicator displays the output signal in %. (Note 2) 9) Adjust the output signal to 100% (5 V DC) by rotating the external zero-adjustment screw. Doing so completes the HRV setting. 10) Press the range-setting push-button.
8. BRAIN TERMINAL BT200 OPERATION 8. BRAIN TERMINAL BT200 OPERATION The DPharp is equipped with BRAIN communications capabilities, so that range changes, Tag No. setup, monitoring of self-diagnostic results, and zero point adjustment can be handled by remote control via BT200 BRAIN TERMINAL or CENTUM CS console. This section describes procedures for setting parameters using the BT200. For details concerning the BT200, see IM 01C00A11-01E, “BT200 User’s Manual.” 8.2 BT200 Operating Procedures 8.2.
8. BRAIN TERMINAL BT200 OPERATION 8.2.2 Operating Key Functions (1) Alphanumeric Keys and Shift Keys You can use the alphanumeric keys in conjunction with the shift keys to enter symbols, as well as alphanumeric keys. 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: / . – , + * ) ( ’ & % $ # ” ! To enter characters next to these symbols, press [ > ] to move the cursor.
8. BRAIN TERMINAL BT200 OPERATION 8.2.3 Calling Up Menu Addresses Using the Operating Keys ––WELCOME–– BRAIN TERMINAL ID: BT200 STARTUP SCREEN check connection push ENTER key UTIL The utility screen contains the following items. 1. BT200 ID settings 2. Security code settings 3. Switching language of messages (Japanese or English) 4. LCD contrast setting 5. Adjusting printout tone (BT200-P00 only) UTILITY 1.ID 2.SECURITY CODE 3.LANGUAGE SELECT 4.LCD CONTRAST 5.
8. BRAIN TERMINAL BT200 OPERATION 8.3 Setting Parameters Using the BT200 8.3.1 Parameter Summary Instruments to which applicable: F: Differential pressure transmitters P: Pressure transmitters L: Liquid level transmitters No. Item 01 MODEL 02 TAG NO. EJA110A, EJA120A, and EJA130A EJA310A, EJA430A, EJA440A, EJA510A, and EJA530A EJA210A and EJA220A Description Model+capsule type Tag number 03 SELF CHECK Self-diagnostic result A DISPLAY Measured data display A10 OUTPUT (%) A11 ENGR.
8. BRAIN TERMINAL BT200 OPERATION No. D Item AUX SET 1 D31 STAT. P.
8. BRAIN TERMINAL BT200 OPERATION 8.3.2 Parameter Usage and Selection IMPORTANT Before describing the procedure for setting parameters, we present the following table showing how the parameters are used and in what case. If the transmitter is turned off within 30 seconds after parameters have been set, the set data will not be stored and the terminal returns to previous settings. Table 8.3.1 Parameter Usage and Selection Setup Item Tag No. setup P.8-7 Calibration range setup P.
8. BRAIN TERMINAL BT200 OPERATION 8.3.3 Setting Parameters Set or change the parameters as necessary. After completing these, do not fail to use the “DIAG” key to confirm that “GOOD” is displayed for the selfdiagnostic result at _60: SELF CHECK. set data. The set data items flash. When all items have been confir- PRINTER OFF F2:PRINTER ON FEED POFF NO med, press the again. (To go back to the setting panel, press the (NO) key. (1) Tag No. Setup (C10: TAG NO) Use the procedure below to change the Tag No.
8. BRAIN TERMINAL BT200 OPERATION b. Setting Calibration Range Lower Range Value and Higher Range Value (C21: LOW RANGE, C22: HIGH RANGE) These range values are set as specified in the order before the instrument is shipped. Follow the procedure below to change the range. • Example 2: With present settings of 0 to 30 kPa, set the Higher range value to10 kPa.
8. BRAIN TERMINAL BT200 OPERATION (4) Output Signal Low Cut Mode Setup (D10: LOW CUT, D11: LOW CUT MODE) Low cut mode can be used to stabilize the output signal near the zero point. The low cut point can be set in a range from 0 to 20% of output. (Hysteresis of cut point: ±1%) Select “ZERO” as the low cut mode. LOW CUT mode ZERO at 10% (5) Change Output Limits (D15:OUT LIMIT(L), D16:OUT LIMIT(H)) The range of normal output is preset at factory from -5.0 to 110.
8. BRAIN TERMINAL BT200 OPERATION % indication and input pressure indication User-set engineering unit display D20: DISP SELECT NORMAL % INP PRES PRES & % D20: DISP SELECT USER SET USER & % b. Setting User-set Engineering Unit (D21: DISP UNIT) This parameter allows entry of the engineering units to be displayed on the BT200. When the instrument is shipped, this is set as specified in the order. Follow the procedure below to change this setting. This parameter need not be set for % display.
8. BRAIN TERMINAL BT200 OPERATION (7) Unit Setup for Displayed Temperature (D30: TEMP UNIT) When the instrument is shipped, the temperature units are set to degC. Follow the procedure below to change this setting. Note that changing the unit here changes the unit for A20: AMP TEMP (amplifier temperature) and A21: CAPSULE TEMP (capsule temperature). • Example: Change the unit for the temperature display. SET D30:TEMP UNIT deg C < deg C > < deg F > Use the or key to select “deg F.
8. BRAIN TERMINAL BT200 OPERATION (11) Range Change while Applying Actual Inputs (H10: AUTO LRV, H11: AUTO HRV) This feature allows the lower and higher range values to be set up automatically with the actual input applied. If the lower and higher range values are set, C21: LOW RANGE and C22: HIGH RANGE are changed at this same time. Note that changing the higher range value does not cause the lower range value to change but does change the span.
8. BRAIN TERMINAL BT200 OPERATION (b)-2 Follow the procedure below to use J11: ZERO DEV. (a) Follow the procedure below when setting the present output to 0% (4 mA). Output is 0.5%. A10:OUTPUT (%) 0.5 % SET J10:ZERO ADJ 0.0 % + 000.0 Press the Present output is 41.0%. A10:OUTPUT (%) 41.0 % Output error = 40.0 – 41.0 = –1.0%. SET J11:ZERO DEV. 2.50 % 0 key twice. Since “J11: ZERO DEV.” contains the previous correction, obtain the correction value by adding –1.0% to CLR SET J10:ZERO ADJ 0.
8. BRAIN TERMINAL BT200 OPERATION (c) Zero Point Adjustment Using the External Zero Adjustment Screw You can manually perform the trimming procedure by using J15: SPAN ADJ. • Enabling/inhibiting of zero point adjustment using the external zero-adjustment screw on the transmitter (J20: EXT ZERO ADJ) • Span adjustment value The span adjustment value is calculated as follows.
8. BRAIN TERMINAL BT200 OPERATION (14) Test Output Setup (K10: OUTPUT X%) This feature can be used to output a fixed current from 3.2 mA (–5%) to 21.6 mA (110%) for loop checks. 8.4 Displaying Data Using the BT200 8.4.1 Displaying Measured Data The BT200 can be used to display measured data. • Example: Output 12 mA (50%) fixed current. SET K10:OUTPUT X % 0.0 % + 050.0 Set “50.0%.” Press the key twice to output a fixed current at 50%. ESC SET K10:OUTPUT X % 50.
8. BRAIN TERMINAL BT200 OPERATION 8.5 Self-Diagnostics • Example 3: Checking the history of the errors 8.5.1 Checking for Problems (1) Identifying Problems with BT200 The following four areas can be checked. (a) Whether connections are good. (b) Whether BT200 was properly operated. (c) Whether settings were properly entered. (d) History of the errors. See examples below. HOME Press the UTIL key. When the panel shown on the left check connection push ENTER key appears, press the key.
8. BRAIN TERMINAL BT200 OPERATION (2) Checking with Integral Indicator NOTE If an error is detected in the self-diagnostic, an error number is displayed on the integral indicator. If there is more than one error, the error number changes at two-second intervals. See Table 8.5.1 regarding the error numbers. F0838.EPS Figure 8.5.
8. BRAIN TERMINAL BT200 OPERATION 8.5.2 Errors and Countermeasures The table below shows a summary of error messages. Table 8.5.1 Error Message Summary Integral Indicator Display BT200 Display Cause Output Operation during Error Countermeasure None GOOD ---- ERROR Er. 01 CAP MODULE FAULT Capsule problem.*1 Outputs the signal (Hold, High, or Low) set with parameter D53. Replace the capsule when error keeps appearing even after restart.*2 Er. 02 AMP MODULE FAULT Amplifier problem.
9. MAINTENANCE 9. MAINTENANCE 9.1 Overview WARNING Since the accumulated process fluid may be toxic or otherwise harmful, take appropriate care to avoid contact with the body, or inhalation of vapors during draining condensate or venting gas in transmitter pressure-detector section and even after dismounting the instrument from the process line for maintenance. Maintenance of the transmitter is easy due to its modular construction.
9. MAINTENANCE Table 9.2.1 Instruments Required for Calibration Name Power supply Load resistor Voltmeter Digital manometer Pressure generator Pressure source Yokogawa-recommended Instrument Remarks 4 to 20 mA DC signal Model SDBT or SDBS distributor Model 2792 standard resistor [250 Ω ±0.005%, 3 W] Load adjustment resistor [100 Ω ±1%, 1 W] Model 2501 A digital multimeter Accuracy (10V DC range): ±(0.002% of rdg + 1 dgt) Model MT220 precision digital manometer 1) For 10 kPa class Accuracy: ±(0.
9. MAINTENANCE 9.4 Disassembly and Reassembly 9.4.1 Replacing the Integral Indicator CAUTION This section describes procedures for disassembly and reassembly for maintenance and component replacement. Cautions for Flameproof Type Transmitters Users are prohibited by law from modifying the construction of a flameproof type transmitter. This would invalidate the agency approval and the transmitter’s use in such rated area.
9. MAINTENANCE Attaching the Integral Indicator Integral indicator can be installed in the following three directions. F0910.EPS Figure 9.4.1 Installation Direction of Indicator 1) Align both the LCD board assembly and CPU assembly connectors and engage them. 2) Insert and tighten the two mounting screws. 3) Replace the cover. Output terminal cable Press forward 9.4.2 Replacing the CPU Board Assembly This subsection describes the procedure for replacing the CPU assembly. (See Figure 9.4.
9. MAINTENANCE NOTE Removing the Capsule Assembly Confirm that the zero-adjustment screw pin is placed properly in the groove on the bracket prior to tightening the two bosses. If it is not, the zero-adjustment mechanism will be damaged. IMPORTANT Exercise care as follows when cleaning the capsule assembly. • Handle the capsule assembly with care, and be especially careful not to damage or distort the diaphragms that contact the process fluid.
9. MAINTENANCE 9.5 Troubleshooting Pressure-detector section Nut Cover flange Allen screw If any abnormality appears in the measured values, use the troubleshooting flow chart below to isolate and remedy the problem. Since some problems have complex causes, these flow charts may not identify all. If you have difficulty isolating or correcting a problem, contact Yokogawa service personnel. 9.5.
9. MAINTENANCE 9.5.2 Troubleshooting Flow Charts Output travels beyond 0% or 100%. The following sorts of symptoms indicate that transmitter may not be operating properly. Example : • There is no output signal. • Output signal does not change even though process variable is known to be varying. • Output value is inconsistent with value inferred for process variable. Connect BRAIN TERMINAL and check self-diagnostics.
9. MAINTENANCE Large output error. Connect BRAIN TERMINAL and check self-diagnostics. Does the selfdiagnostic indicate problem location? NO YES Refer to error message summary in Subsection 8.5.2 to take actions. NO Are valves opened or closed correctly? YES Fully open tap and stop valves, and fully close drain valve. NO Is impulse piping connected correctly? YES Refer to individual model user manuals and connect piping as appropriate for the measurement purpose.
10. GENERAL SPECIFICATIONS 10. GENERAL SPECIFICATIONS 10.1 Standard Specifications Refer to IM 01C22T02-01E for FOUNDATION Fieldbus communication type and IM 01C22T0300E for PROFIBUS PA communication type marked with “ ”. External Zero Adjustment “ ”: External zero is continuously adjustable with 0.01% incremental resolution of span. Span may be adjusted locally using the digital indicator with range switch.
10. GENERAL SPECIFICATIONS Where: L = length in meters or feet R = resistance in Ω (including barrier resistance) C = cable capacitance in pF/m or pF/ft Cf = maximum shunt capacitance of receiving devices in pF/m or pF/ft Supply Voltage “ ”: 10.5 to 42 V DC for general use and flameproof type 10.5 to 32 V DC for lightning protector (Optional code /A) 10.5 to 30 V DC for intrinsically safe, Type n, nonincendive, or non-sparking type Minimum voltage limited at 16.
10. GENERAL SPECIFICATIONS 10.2 Model and Suffix Codes Model EJA310A Model EJA310A Suffix Codes ..................... Description Absolute pressure transmitter -D . . . . . . . . . . . . . . . . . . . -E . . . . . . . . . . . . . (Note 1) (Note 4) -F . . . . . . . . . . . . . (Note 5) . . . . . . . . . . . . . -G L.................. Measurement span M.................. (capsule) A..................
10. GENERAL SPECIFICATIONS Model EJA430A Model Suffix Codes EJA430A ........................ Gauge pressure transmitter -D . . . . . . . . . . . . . . . . . . . . . . (Note 1) -E . . . . . . . . . . . . . . . . . (Note 5) . . . . . . . . . . . . . . . . . -F (Note 8) -G . . . . . . . . . . . . . . . . .
10. GENERAL SPECIFICATIONS Model EJA440A Model EJA440A Output Signal Measurement span(capsule) Suffix Codes Description . . . . . . . . . . . . . . . . . . . . . . . Gauge pressure transmitter -D . . . . . . . . . . . . . . . . . . . . . 4 to 20 mA DC with digital communication (BRAIN protocol) (Note 1) 4 to 20 mA DC with digital communication (HART protocol) -E . . . . . . . . . . . . . . . . (Note 4) . . . . . . . . . . . . . . . .
10. GENERAL SPECIFICATIONS 10.3 Optional Specifications For FOUNDATION Fieldbus explosion protected type, see IM 01C22T02-01E. For PROFIBUS PA explosion protected type, see IM 01C22T03-00E. Item Description Code FM Explosionproof Approval *1 Explosionproof for Class I, Division 1, Groups B, C and D Dust-ignitionproof for Class II/III, Division 1, Groups E, F and G Hazardous (classified) locations, indoors and outdoors (NEMA 4X) Temperature class: T6 Amb. Temp.
10. GENERAL SPECIFICATIONS Item Description Code CSA Explosionproof Approval *1 Certificate: 1089598 Explosionproof for Class I, Division 1, Groups B, C and D Dustignitionproof for Class II/III, Division 1, Groups E, F and G Division2 ‘SEALS NOT REQUIRED’ , Temp. Class: T4, T5, T6 Encl Type 4x Max. Process Temp.: T4; 120⬚C (248⬚F), T5; 100⬚C (212⬚F), T6; 85⬚C (185⬚F) Amb. Temp.: –40 to 80⬚C (–40 to 176⬚F) Process Sealing Certification Dual Seal Certified by CSA to the requirement of ANSI/ISA 12.27.
10. GENERAL SPECIFICATIONS Description Item Code Amplifier cover only P Amplifier cover and terminal cover, Munsell 7.5 R4/14 PR Epoxy resin-baked coating X1 316 SST exterior parts Exterior parts on the amplifier housing (name plates, tag plate, zero-adjustment screw, stopper screw) will become 316 or 316L SST. HC Lightning protector Transmitter power supply voltage: 10.5 to 32 V DC (10.
10. GENERAL SPECIFICATIONS 10.4 Dimensions Model EJA310A and EJA430A Vertical Impulse Piping Type Process connector upside (INSTALLATION CODE ‘6’) (For CODE ‘2’, ‘3’ or ‘7’, refer to the notes below.) Process connector (Optional) 110 (4.33) High pressure side (Note 1) 27 (1.06) ø78 (3.07) Mounting bracket (L-type, Optional) 53 ( 2.09) Terminal side Internal indicator (Optional) Conduit connection Ground terminal Zero adjustment 2-inch pipe (O.D. 60.
10. GENERAL SPECIFICATIONS Model EJA440A The data in the drawing is basically common to C capsule and D capsule, except where the difference is noted. Vertical Impulse Piping Type Process connector upside (INSTALLATION CODE ‘6’) (For CODE ‘2’, ‘3’ or ‘7’, refer to the notes below.) Unit: mm (approx. inch) 259(10.20) External indicator conduit connection Blind plug High (Optional) pressure side (Note 1) 200(7.87) 146(5.75) Process connection 27 (1.06) Low pressure side ø78 (3.07) 192(7.
Customer Maintenance Parts List DPharp EJA Series Transmitter Section 2 5 4 11 A 10 3 12 13 1 2 2 1 14 A 6 7-2 7-1 Item Part No.
Customer Maintenance Parts List Model EJA310A, EJA430A and EJA440A Absolute and Gauge Pressure Transmitter (Pressure-detector Section) Horizontal Impulse Piping Type 15 2 11–1 18 Low pressure side 19 16 1 3 4–1 21–1 3 5 10–1 6 7 12–1 22 12–2 13–1 23 For EJA440A 11–2 14 For EJA310A low pressure side cover flange 10–2 21–3 13–3 21–2 4–2 12–3 13–2 All Rights Reserved, Copyright © 1999, Yokogawa Electric Corporation.
2 Vertical Impulse Piping Type Low pressure side 14 3 13–1 21–1 1 11–1 3 12–1 4–1 22 8 2 10–1 9 23 18 20 15 17 For EJA440A For EJA310A low pressure side cover flange 13–3 13–2 12–3 11–2 21–3 4–2 21–2 10–2 July 2001 Subject to change without notice. Printed in Japan.
3 Item 1 2 3 4-1 4-2 Part No.
4 Item Part No.
5 Capsule Assembly Part Number EJA310A Table 1. EJA310A Capsule Assembly Part Number (Item 1) For General-use type, Flameproof type and Intrinsically safe type Installation of Transmitter High Pressure Side Right Horizontal Impulse Piping Type Left Right Vertical Impulse Piping Type Left Capsule Code L M A L M A L M A L M A Part No. (*1) F9349HA F9349JA F9349KA F9349HB F9349JB F9349KB F9349HC F9349JC F9349KC F9349HD F9349JD F9349KD Part No.
REVISION RECORD Title: Model EJA310A, EJA430A and EJA440A Absolute Pressure and Gauge Pressure Transmitter Manual No.: IM 01C21D01-01E Edition Date Page 1st June 1997 – 2nd Mar. 1998 CONTENTS 1-1 6-1 11-1 11-3 11-7 2-9+ CMPL 3rd Sep. 1998 – 2-14 8-15 11-3 11-4 11-5 CMPL 4th Oct. 1999 - 2-8 8-4 10-4 CMPL 5th Sep. 2000 2-7 2-8 8-5 9-5 10-2 10-3 10-4 10-5 10-6 Revised Item New publication Page 3 1 • Add REVISION RECORD. • Add ‘NOTE’ notice for FOUNDATION Fieldbus and HART protcol versions.
Edition Date Page 5th (Continued) Sep. 2000 10-7 CMPL 6th July 2001 2-10 4-1 8-4, 8-5 CMPL Revised Item • Add Optional code /F1, /N1, /N2, /N3, /N4, and /R1. CMPL 1C21A1-02E 4th 5th(Manual Change) • Add part numbers to 7-1 CPU Assembly. F9342AF and F9342AM CMPL 1C21A1-02E 5th 6th • Add part numbers to 7-2 CPU Assembly. F9342BG • Change part number of 7-1 CPU Assembly. F9342BC F9342BB • Change part number of 10 Plug.
Edition Date Page 11th Oct. 2008 2-9 2-10 7-1 8-4 and 8-5 8-6 8-9 and later 8-18 9-1 9-5 10-3, 10-4, 10-5 10-7, 10-8 10-9 CMPL Revised Item Change explosion protection marking for type n from EEx to Ex. Update EMC conformity standards. Modify layout. Add new parameters. Add items in table 8.3.1. Add (5) Change Output Limit and (13) Span Adjustment. Re-number the items. Modify descriptions and notes for Er.01. 8.5.2 Add a note for calibration. 9.3 Add a note for cleaning. 9.4.3 Add new suffix codes.
