Operating Instructions Pressure transmitter with metallic measuring cell VEGABAR 87 Slave sensor for electronic differential pressure Document ID: 45053
Contents Contents About this document 1.1 Function............................................................................................................................ 4 1.2 Target group...................................................................................................................... 4 1.3 Symbolism used................................................................................................................ 4 2 For your safety 2.1 Authorised personnel....................
Contents 45053-EN-131011 9.2 Dimensions..................................................................................................................... 47 Safety instructions for Ex areas Please note the Ex-specific safety information for installation and operation in Ex areas. These safety instructions are part of the operating instructions manual and come with the Ex-approved instruments.
1 About this document 1 About this document 1.1 Function 1.2 Target group 1.3 Symbolism used This operating instructions manual provides all the information you need for mounting, connection and setup as well as important instructions for maintenance and fault rectification. Please read this information before putting the instrument into operation and keep this manual accessible in the immediate vicinity of the device. This operating instructions manual is directed to trained specialist personnel.
2 For your safety 2 2.1 For your safety Authorised personnel All operations described in this operating instructions manual must be carried out only by trained specialist personnel authorised by the plant operator. During work on and with the device the required personal protective equipment must always be worn. 2.2 Appropriate use VEGABAR 87 is a slave sensor for electronic differential pressure measurement. You can find detailed information on the application range in chapter "Product description".
2 For your safety 2.6 Measuring range - permissible process pressure The permissible process pressure is specified on the type label with "process pressure", see chapter "Configuration". For safety reasons, this range must not be exceeded. This applies also if a measuring cell with higher measuring range (order-related) than the permissible pressure range of the process fitting is installed. 2.7 Environmental instructions Protection of the environment is one of our most important duties.
3 Product description 3 Type plate Product description 3.1 Configuration The nameplate contains the most important data for identification and use of the instrument: 1 2 3 4 5 6 7 8 9 10 16 15 14 13 12 11 Fig.
3 Product description Scope of this operating instructions manual This operating instructions manual applies to the following instrument versions: Scope of delivery The scope of delivery encompasses: Electronic differential pressure measurement The VEGABAR 87 slave sensor is combined with a sensor from the VEGABAR 80 series for electronic differential pressure measurement.
3 Product description Fig. 2: Electronic level difference measurement through Master/Slave combination Application area The VEGABAR 87 is a pressure transmitter for pressure and level measurements of liquids with higher temperatures in the chemical, food processing and pharmaceutical industry. Measured products Measured products are liquids. Measuring system The process pressure acts on the sensor element via the stainless steel diaphragm and an internal transmission liquid.
3 Product description 1 2 3 4 Fig. 3: Configuration of the METEC measuring cell with VEGABAR 87 ® 1 2 3 4 Pressure types Process diaphragm Isolating liquid FeNi adapter CERTEC® measuring cell The measuring cell design depends on the selected pressure type. Relative pressure: the measuring cell is open to atmosphere. The ambient pressure is detected in the measuring cell and compensated. It thus has no influence on the measured value.
3 Product description 1 2 3 4 Fig. 4: Configuration of the METEC measuring cell with VEGABAR 87 ® 1 2 3 4 Packaging Process diaphragm Isolating liquid FeNi adapter CERTEC® measuring cell 3.3 Packaging, transport and storage Your instrument was protected by packaging during transport. Its capacity to handle normal loads during transport is assured by a test based on ISO 4180. The packaging of standard instruments consists of environmentfriendly, recyclable cardboard.
3 Product description Protective cap 3.4 Accessories and replacement parts The protective cover protects the sensor housing against soiling and intense heat from solar radiation. You will find additional information in the supplementary instructions manual "Protective cover" (Document-ID 34296). Flanges Screwed flanges are available in different versions according to the following standards: DIN 2501, EN 1092-1, BS 10, ANSI B 16.5, JIS B 2210-1984, GOST 12821-80.
4 Mounting 4 Mounting 4.1 General instructions to use the instrument Suitability for the process Make sure that all parts of the instrument exposed to the process are conditions suitable for the existing process conditions.
4 Mounting 2 1 Fig. 5: Temperature ranges 1 2 Filter elements Process temperature Ambient temperature 4.2 Ventilation and pressure compensation Ventilation and pressure compensation are carried out with VEGABAR 87 via a filter element. It is air permeable and moistureblocking. Caution: The filter element causes a time-delayed pressure compensation. When quickly opening/closing the housing cover, the measured value can change for approx. 5 s by up to 15 mbar.
4 Mounting 4 4 1 4 2 3 Fig.
4 Mounting Measurement setup 4.4 Differential pressure measurement With the Master/Slave combination, a gauge different measurement can be realized. 1 2 3 Fig. 8: Measurement setup with a level difference measurement Measurement setup 4.5 Interface measurement With the Master/Slave combination also an interface measurement can be realised.
4 Mounting 2 1 h 0,8 1,0 Fig. 9: Measurement setup with interface measurement, h = distance between the two measuring points 1 2 VEGABAR 87 VEGABAR 87 - Slave sensor The interface measurement is possible in open as well as in closed vessels. 4.6 Measurement setup Density measurement With the Master/Slave combination also a density measurement can be realised.
4 Mounting 2 h 1 Fig. 10: Measurement setup with density measurement, h = distance between the two measuring points 1 2 VEGABAR 87 VEGABAR 87 - Slave sensor Density measurement is possible in open as well as in closed vessels. Small changes in the density cause only small changes in the measured differential pressure. So a suitable measuring range has to be selected.
4 Mounting Configuration 4.7 External housing 1 2 3 4 Fig. 11: Arrangement measurement loop, external housing 1 2 3 4 5 Mounting Vessel Sensor Connection cable sensor - external housing External housing Signal cable 1. Mark the holes according to the following drilling template 2. Fasten wall mounting plate with 4 screws 90 mm (3.54") 70 mm (2.76") 3mm (0.12") mm 3,5 4") .1 0 ( 93 mm (3.66") 110 mm (4.33") R 8 mm (0.32") 45053-EN-131011 Fig.
5 Connecting to power supply 5 Safety instructions Voltage supply Connecting to power supply 5.1 Preparing the connection Always keep in mind the following safety instructions: • • Connect only in the complete absence of line voltage If overvoltage surges are expected, overvoltage arresters should be installed The voltage supply and the signal transmission are carried out via the four-wire, screened connection cable from the master sensor.
5 Connecting to power supply Fig. 13: Connection steps 5 and 6 6. Insert the wire ends into the terminals according to the wiring plan Information: Solid cores as well as flexible cores with wire end sleeves are inserted directly into the terminal openings. In case of flexible cores without end sleeves, press the terminal from above with a small screwdriver; the terminal opening is freed. When the screwdriver is released, the terminal closes again. You can find further information on the max.
5 Connecting to power supply Electronics and connection compartment Master 5 6 7 8 4 1 2 Fig. 14: Wiring plan VEGABAR 87 Slave sensor 1 2 Overview To the sensor Ground terminal for connection of the cable screen1) 5.4 External housing with version IP 68 (25 bar) Fig. 15: VEGABAR 87 in IP 68 version 25 bar, non-Ex and axial cable outlet, external housing 22 Connect screen here. Connect ground terminal on the outside of the housing to ground as prescribed.
5 Connecting to power supply Electronics and connection compartment for power supply 1 4...20mA (+)1 2(-) 5 6 7 8 2 3 Fig. 16: Electronics and connection compartment 1 2 3 Electronics module Cable gland for voltage supply Cable gland for connection cable, transmitter Terminal compartment, housing socket 1 2 3 4 1 2 5 3 4 6 45053-EN-131011 Fig.
5 Connecting to power supply Electronics and connection compartment Master 5 6 7 8 4 1 2 Fig. 18: Wiring plan VEGABAR 87 Slave sensor 1 2 Connection example, slave sensor To the sensor Ground terminal for connection of the cable screen2) 5.5 Connection example 4...20mA (+)1 2(-) 5 4 6 7 8 3 5 6 7 8 4 1 2 Fig.
6 Set up with the display and adjustment module 6 6.1 Set up with the display and adjustment module Parameter adjustment - Quick setup To quickly and easily adapt the sensor to the application, select the menu item "Quick setup" in the start graphic on the display and adjustment module. Carry out the following steps in the sequence specified below. The presettings apply to all applications. You can find "Extended adjustment" in the next sub-chapter. Presettings 1.
6 Set up with the display and adjustment module Enter the percentage value and the corresponding pressure value for the max. level. The quick setup for level measurement is finished. Quick setup - Flow measurement 4. Position correction In this menu item you compensate the influence of the installation position of the instrument (offset) to the measured value. 5. Min. adjustment In this menu item you carry out the min. adjustment for flow.
6 Set up with the display and adjustment module The quick setup for differential pressure measurement is finished. Quick setup - Density measurement 4. Unit, static pressure In this menu item, you determine the unit of the static, i.e. superimposed pressure. 5. Position correction In this menu item you compensate the influence of the installation position of the instrument (offset) to the measured value. 6. Distance In this menu item, you enter the installation distance between master and slave sensor. 7.
6 Set up with the display and adjustment module The quick setup for interface measurement is finished. 6.2 Parameter adjustment - Extended adjustment For technically demanding measurement loops you can carry out extended settings in "Extended adjustment". Main menu The main menu is divided into five sections with the following functions: Setup: Settings, e.g., for measurement loop name, application, units, position correction, adjustment, signal output Display: Settings, e.g.
6 Set up with the display and adjustment module The following applications are available: • • • • • Level Flow Differential pressure Density Interface Note: It is absolutely necessary to activate the slave sensor in advance to have the applications displayed in the electronic differential pressure measurement menus. Enter the requested parameters via the appropriate keys, save your settings with [OK] and jump to the next menu item with the [ESC] and the [->] key.
6 Set up with the display and adjustment module Save your settings with [OK] and move with [ESC] and [->] to the next menu item. After the position correction is carried out, the actual measured value is corrected to 0. The corrective value appears with an inverse sign as offset value in the display. The position correction can be repeated as often as necessary. However, if the sum of the corrective values exceeds 20 % of the nominal measuring range, then no position correction is possible.
6 Set up with the display and adjustment module Note: If the adjustment ranges are exceeded, the entered value will not be accepted. Editing can be interrupted with [ESC] or corrected to a value within the adjustment ranges. Setup - Min. adjustment Level Proceed as follows: 1. Select the menu item "Setup" with [->] and confirm with [OK]. Now select with [->] the menu item "Adjustment", then "Min. adjustment" and confirm with [OK]. 2.
6 Set up with the display and adjustment module 2. Edit the mbar value with [OK] and set the cursor to the requested position with [->]. 3. Set the requested mbar value with [+] and store with [OK]. 4. Change with [ESC] and [->] to the span adjustment The min. adjustment is finished. For an adjustment with pressure, simply enter the actual measured value indicated at the bottom of the display. Setup - Max. adjustment, flow Proceed as follows: 1. Select with [->] the menu item "Max.
6 Set up with the display and adjustment module Setup - span adjustment, differential pressure Proceed as follows: 1. Select with [->] the menu item "Span adjustment" and confirm with [OK]. 2. Edit the mbar value with [OK] and set the cursor to the requested position with [->]. 3. Set the requested mbar value with [+] and store with [OK]. The span adjustment is finished. For an adjustment with pressure, simply enter the actual measured value indicated at the bottom of the display.
6 Set up with the display and adjustment module 1. Select the menu item "Setup" with [->] and confirm with [OK]. Now select with [->] the menu item "Max. adjustment" and confirm with [OK]. 2. Edit the percentage value with [OK] and set the cursor to the requested position with [->]. 3. Set the requested percentage value with [+] and save with [OK]. The cursor jumps now to the density value. 4. Enter the max. density value matching the percentage value. The max. adjustment for density is finished.
6 Set up with the display and adjustment module Additional adjustments - Reset With a reset, certain parameter adjustments carried out by the user are reset. The following reset functions are available: Delivery status: Restoring the parameter settings at the time of shipment from the factory incl. the order-specific settings. A user-programmable linearization curve as well as the measured value memory will be deleted. Basic settings: Resetting the parameter settings incl.
6 Set up with the display and adjustment module Menu item Parameter Default value Current output Current output Mode Output characteristics 4 … 20 mA Reaction when malfunction occurs ≤ 3.6 mA Current output Min./Max. 3.8 mA 20.
6 Set up with the display and adjustment module Menu item Parameter Default value Effective pressure transmitter Unit m3/s Adjustment 0.00 % correspond to 0.00 m3/s 100.00 %, 1 m3/s Setup - Characteristics In this menu item, the units for the effective pressure transmitter are values, effective pressure determined as well as the selection of mass or volume flow. transmitter 45053-EN-131011 Furthermore the adjustment for the volume or mass flow rate at 0 % or 100 % is carried out.
7 Diagnosis, asset management and service 7 Maintenance Diagnosis, asset management and service 7.1 Maintenance If the instrument is used properly, no special maintenance is required in normal operation. In some applications, product buildup on the diaphragm can influence the measuring result. Depending on the sensor and application, take precautions to ensure that heavy buildup, and especially a hardening thereof, is avoided. 7.
7 Diagnosis, asset management and service Required tools: • Hexagon socket wrench, size 2 Caution: The exchange may only be carried out in the complete absence of line voltage. In Ex applications, only a replacement part with appropriate Ex approval may be used. Proceed as follows when carrying out the exchange: 1. Losen the fixing screw with the hexagon socket wrench 2. Carefully detach the cable assembly from the process assembly 3 5 4 2 1 Fig.
7 Diagnosis, asset management and service The necessary serial number can be found on the type label of the instrument or on the delivery note. 7.5 How to proceed in case of repair You can find a repair form as well as detailed information on how to proceed under www.vega.com/downloads and "Forms and certificates". By doing this you help us carry out the repair quickly and without having to call back for needed information.
8 Dismounting 8 8.1 Dismounting Dismounting steps Warning: Before dismounting, be aware of dangerous process conditions such as e.g. pressure in the vessel or pipeline, high temperatures, corrosive or toxic products etc. Take note of chapters "Mounting" and "Connecting to power supply" and carry out the listed steps in reverse order. 8.2 Disposal The instrument consists of materials which can be recycled by specialised recycling companies.
9 Supplement 9 9.1 Supplement Technical data Materials and weights Materials, wetted parts Process fitting 316L Suspension cable FEP Transmitter 316L Seal, suspension cable FKM, FEP Connection tube 316L Diaphragm Hastelloy C276 Protective cap PFA Seal for process fitting (in the scope of delivery) ƲƲ Thread G1½ (DIN 3852-A) Klingersil C-4400 ƲƲ Threaded fitting Klingersil C-4400 Materials, non-wetted parts Isolating liquid Essomarcal (med.
9 Supplement Straining clamp Threaded fitting 0.2 kg (0.441 lbs) 0.4 kg (0.882 lbs) Input variable Adjustment Adjustment range of the min./max. adjustment relating to the nominal measuring range: ƲƲ Percentage value ƲƲ Pressure value -10 … 110 % -20 … 120 % Adjustment range of the zero/span adjustment relating to the nominal measuring range: ƲƲ zero -20 … +95 % ƲƲ Difference between zero and span max. 120 % of the nominal range ƲƲ span Recommended max.
9 Supplement Nominal range Overload capacity, max. pressure Overload capacity, min. pressure 0 … +5 psig +435 psig -11.60 psig 0 … +15 psig +510 psig -14.51 psig 0 … +30 psig +725 psig -14.51 psig 0 … +150 psig +1300 psig -14.51 psig 0 … +300 psig +1900 psig -14.
9 Supplement Non-compensated temperature range -40 … 0 °C (-40 … +32 °F), -100 … 130 °C (212 … +276 °F) Nominal measuring range in bar/ kPa Nominal measuring range in psig In the compensated temperature range In the non-compensated temperature range 0 … 10 bar/0 … 1000 kPa 0 … 150 psig 0 … 25 bar/0 … 2500 kPa 0 … 350 psig < {0.05 % + 0.1 x (0.5+0.5 x TD)} < {0.1 % + 0.15 x (0.5+0.5 x TD)} 0 … 1 bar/0 … 100 kPa 0 … 15 psig 0 … 2.5 bar/0 … 250 kPa 0 … 35 psig < {0.1 % + 0.2 x (0.5+0.
9 Supplement Ambient conditions Version Ambient temperature Storage and transport temperature Version with connection tube -40 … +80 °C (-40 … +176 °F) -60 … +80 °C (-76 … +176 °F) Version with suspension cable FEP -20 … +80 °C (-4 … +176 °F) -20 … +80 °C (-4 … +176 °F) Version IP 68 (1 bar) with connection cable PE -20 … +60 °C (-4 … +140 °F) -20 … +60 °C (-4 … +140 °F) Electromechanical data - version IP 66/IP 67 and IP 66/IP 68; 0.
9 Supplement Spring-loaded terminals for wire crosssection up to 2.5 mm² (AWG 14) Voltage supply, interface to the master sensor Voltage supply Through the master sensor Data transmission digital (I²C-Bus) Cable length max.
9 Supplement Housing ~ 59 mm (2.32") ø 80 mm (3.15") ~ 116 mm (4.57") ø 86 mm (3.39") M20x1,5/ ½ NPT M20x1,5 M20x1,5/ ½ NPT ~ 69 mm (2.72") ø 79 mm (3.11") ø 80 mm (3.15") M20x1,5/ ½ NPT 4 104 mm (4.1") 117 mm (4.61") ~ 59 mm (2.3") M20x1,5/ ½ NPT 3 2 1 112 mm (4.41") 112 mm (4.41") 116 mm (4.57") ~ 69 mm (2.72") ø 79 mm (3.11") M20x1,5/ ½ NPT 5 Fig. 22: Housing versions in protection IP 66/IP 67 and IP 66/IP 68 (0.
9 Supplement External housing with IP 68 version 80 mm (3.15") 82 mm (3.23") 41,6 mm (1.64") 3 59 mm (2.32") 108 mm (4.25") 1 110 mm x 90 mm (4.33" x 3.54") 41,6 mm (1.64") ~ 66 mm (2.60") 2 51 mm (2.01") 4 110 mm x 90 mm (4.33" x 3.54") 5 Fig. 23: VEGABAR 87, IP 68 version with external housing Lateral cable outlet Axial cable outlet Plastic version Stainless steel version Seal 2 mm (0.
9 Supplement VEGABAR 87 SW 30 mm (1.18") SW 46 mm (1.81") 14 mm (0.55") 52 mm (2.05") 22 mm (0.87") 38,5 mm (1.52") 48-52 mm (1.89" 2.05") 22 mm (0.87") L L L L G1 ½ / 1½ NPT G1 ½ / 1½ NPT 20 mm (0.79") 175 mm (6.89") G1 ½ / 1½ NPT ø 8 mm (0.32") 197 mm (7.76") ø 29 mm (1.14") ø 40 mm (1.58") 1 2 3 4 Fig.
9 Supplement VEGABAR 87, flange connection f b 51 mm (2.01") d2 d4 k D 1 mm DN .. 25 A8 40 B3 B2 B5 CD A6 L ø 8 mm (0.32") 2 32 50 177 mm (6.97") 40 150 18 40 40 20 d4 2 110 4xø18 88 3 100 125 4xø18 4xø18 78 102 160 8xø18 138 150 16 285 22 240 8xø22 162 100 " 16 lbs 300 3" .. 25 A8 40 32 B2 50 CD 100 150 PN 152,5 b 19 180 k 120,5 8xø18 d2 4xø16 158 3 d4 f 3 92 254 19 30.5 152,5 4xø16 152 D b k d2 d4 190.
9 Supplement 51 mm (2.01") 51 mm (2.01") VEGABAR 87, hygienic fitting ø 78 mm (3.07") ø 92 mm (3.62") 177 mm (6.97") ø 8 mm (0.32") L L ø 64 mm (2.52") ø 40 mm (1.58") 1 2 Fig.
9 Supplement 9.3 Industrial property rights VEGA product lines are global protected by industrial property rights. Further information see www.vega.com. Only in U.S.A.: Further information see patent label at the sensor housing. VEGA Produktfamilien sind weltweit geschützt durch gewerbliche Schutzrechte. Nähere Informationen unter www.vega.com. Les lignes de produits VEGA sont globalement protégées par des droits de propriété intellectuelle. Pour plus d'informations, on pourra se référer au site www.
INDEX INDEX A Adjustment ––Density 33 ––Differential pressure, flow 31, 32 ––Interface 34 ––Level 31 ––Menu 28 ––Overview 30 ––Unit 29 ––Quick setup 25 C Connecting ––Mechanically 13 Connection ––Steps 20 ––Technology 20 D Default values 35 E Effective pressure transmitter ––Characteristics values 37 F Fault rectification 38 Functional principle 9, 10 M Maintenance 38 Measurement setup ––Density measurement 17 ––Interface measurement 16 ––Level difference measurement 16 P Position correction
45053-EN-131011 Notes VEGABAR 87 • Slave sensor for electronic differential pressure 55
All statements concerning scope of delivery, application, practical use and operating conditions of the sensors and processing systems correspond to the information available at the time of printing. Subject to change without prior notice © VEGA Grieshaber KG, Schiltach/Germany 2013 VEGA Grieshaber KG Am Hohenstein 113 77761 Schiltach Germany Phone +49 7836 50-0 Fax +49 7836 50-201 E-mail: info.de@vega.com www.vega.
