Pyromation T82 - Manual (Page 59)

T82 Operating menu and parameter description
59
Additional information The threshold value is relevant if the sensor switching function is assigned to a HART ® variable
(PV, SV, TV, QV).
Options: Depends on the sensor types selected.
Factory settings 0.0 °C
"Current output" submenu
Adjustment of the analog output (4 and 20 mA current trimming)
Current trimming is used to compensate the analog output (D/A conversion). Here, the output
current of the transmitter can be adapted so that it suits the value expected at the higher-order
system.
NOTICE
Current trimming does not affect the digital HART ® value. This can cause the measured
value shown on the plug-in display to differ from the value displayed in the higher-
order system.
► The digital measured values can be adapted with the sensor trimming parameter in the menu
Expert ® Sensor ® Sensor trimming.
Procedure
1. Start
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2. Install an accurate amperemeter (more accurate than the transmitter) in the current loop.
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3. Switch on current output simulation and set the simulation value to 4 mA.
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4. Measure the loop current with the amperemeter and make a note of the value.
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5. Set the simulation value to 20 mA.
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6. Measure the loop current with the amperemeter and make a note of the value.
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7. Enter the current values determined as adjustment values in the Current trimming 4 mA / 20 mA parameters.
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8. End
Output current
Navigation Setup ® Advanced setup ® Current output® Output current
Expert ® Output ® Output current
Description Use this function to view the calculated output current in mA.