Operating Instructions Manual as well as the Safety Manual that comes with instruments with SIL qualification. These manuals are available on the supplied DVD or in the download area of "www.vega. com". Operating instructions VEGABAR 81 - Slave sensor for elec-...
During work on and with the device the required personal protective equipment must always be worn. Appropriate use VEGABAR 81 is a slave sensor for electronic differential pressure measurement. You can find detailed information about the area of application in chapter "Product description".
"Process pressure", see chapter "Configuration". For safety reasons, this range may not be exceeded. This applies even if a measuring cell with a measuring range (order-related) higher than the permissible pressure range of the process fitting is installed. VEGABAR 81 • Slave sensor for electronic differential pressure...
Alternatively, you can access the data via your smartphone: • Download the smartphone app "VEGA Tools" from the "Apple App Store" or the "Google Play Store" • Scan the Data Matrix code on the type label of the instrument or •...
• Instruments with absolute pressure Combination Master - Slave In principle, any sensor combination within the VEGABAR 80 series is allowed. The following requirements must be fulfilled: VEGABAR 81 • Slave sensor for electronic differential pressure...
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Application: Differential pressure measurement Medium: Gas Static pressure: 0.8 bar Differential pressure on orifice: 50 mbar bar = 0.050 bar Total pressure: 0.8 bar bar + 0.05 bar = 0.85 bar VEGABAR 81 • Slave sensor for electronic differential pressure...
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Slave (static or superimposed pressure) are outputted by the sensor. Depending on the instrument version, output as 4 … 20 mA signal or digitally via HART, Profibus PA or Foundation Fieldbus. VEGABAR 81 • Slave sensor for electronic differential pressure...
Fig. 3: Connection steps 5 and 6 5. Insert the wire ends into the terminals according to the wiring plan 6. Check the hold of the wires in the terminals by lightly pulling on them VEGABAR 81 • Slave sensor for electronic differential pressure...
To the Master sensor Ground terminal for connection of the cable screen Connect screen here. Connect ground terminal on the outside of the housing to ground as prescribed. The two terminals are galvanically connected. VEGABAR 81 • Slave sensor for electronic differential pressure...
The display and adjustment module is powered by the sensor, an ad- ditional connection is not necessary. Fig. 6: Installing the display and adjustment module in the electronics compart- ment of the single chamber housing VEGABAR 81 • Slave sensor for electronic differential pressure...
(locked) against all parameter changes while in normal operating condition. For each parameter change you have to enter the PIN of the instru- ment. In delivery status, the PIN is "0000". VEGABAR 81 • Slave sensor for electronic differential pressure...
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4. Depending on the application, carry out the adjustment e.g. in the menu items "Min. adjustment" and "Max. adjustment". VEGABAR 81 always measures pressure independently of the pro- Parameterization example cess variable selected in the menu item "Application". To output the selected process variable correctly, an allocation of the output signal to 0 % and 100 % must be carried out (adjustment).
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Afterwards you confirm that the serial number of your instrument was carried over correctly. This is used to check device communication. 4. Verify parameters Confirm the modified values one after the other. VEGABAR 81 • Slave sensor for electronic differential pressure...
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Ceramic measuring cell: Measuring cell temperature in °C Metallic measuring cell: Electronics temperature in °C Display format 1 and 2 Number of positions after the decimal point, automatically Backlight Switched on VEGABAR 81 • Slave sensor for electronic differential pressure...
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0.00 % correspond to 0.00 m 100.00 %, 1 m Menu - Info Menu item Parameter Device name VEGABAR 8. Instrument version Hardware and software version Factory calibration date Date Sensor characteristics Order-specific characteristics VEGABAR 81 • Slave sensor for electronic differential pressure...
Operating voltage Ʋ U 12 V DC B min Ʋ U - lighted display and adjustment 12 V DC B min module Ʋ U Depending on signal output and version B max VEGABAR 81 • Slave sensor for electronic differential pressure...