Page 68 STT850 Series HART/DE Option User’s Manual Revision 4.0
6.8 Input Calibration Procedure
6.8.1 Correct Input at the Lower Range Value (LRV)
Enter the appropriate values before doing the calibration.
Configure sensor type to mV or TC or RTD or Ohms for the input which we are going to perform
calibration. Below snapshots are examples of sensor type TC-E.
The Lower calibration Point and Upper calibration Point are the values used for the LRV Correct and
URV Correct.
These values are entered in Device Setup/Sensors/Sensor 1/Sensor 1 Config Params and Device
Setup/Sensors/Sensor 2/Sensor 2 Config Params menus.
So the first set is for LRV1 Correct and URV1 Correct and the second set is for LRV2 Correct and
URV2 Correct.
1. Select the Correct LRV button on the CALIBRATION display. (See Step 4 in the previous
procedure to bring the CALIBRATION screen to the display.)
2. Select the Correct LRV button. This message appears:
3. Adjust the PV input Temperature to the exact value of the LRV entered in the DE
CONFIGURE display.
4. Select the OK button
5. Observe the input Temperature at the applied value; when it is stable, select the OK button.
6. When the Transmitter has completed the LRV correction, this message appears:
7. Select OK to acknowledge.
To Next Page
Loading...
