Aalborg PWE Digital - Manual (Page 62)

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5.2.4 Temperature 0-5 Vdc analog output
calibration*
1. Install jumpers J3D, J3E and J3F on the PC board for 0-5 Vdc output
(see Table 5-1).
2. Connect a certified high sensitivity multi meter set for the voltage
measurement to the pins L (+) and K (-) of the PWE 12 Pin "M16"
connector.
3. Write 4000 counts to the DAC_B channel: !11,WRITE,1,4000[CR]
4. Read voltage with the meter and calculate TOutScaleV value:
5. Save TOutScaleV in to the EEPROM: !11,MW,43,X[CR]
Where: X – the calculated ToutScaleV value.
5.2.5 Temperature 4-20 mA analog output
calibration*
1. Install jumpers J3D, J3E and J3F on the PC board for 4-20 mA output
output (see Table 5-1).
2. Connect a certified high sensitivity multi meter set for the current
measurement to pins L (+) and K (-) of the PWE 12 Pin "M16" connector.
3. Write 4000 counts to the DAC_B channel: !11,WRITE,1,4000[CR]
4. Read current with the meter and calculate ToutScale_mA value:
5. Write zero counts to the DAC_B channel: !11,WRITE,1,0CR]
6. Read offset current with the meter and calculate ToutOffset_mA value:
7. Save ToutScale_mA in to the EEPROM: !11,MW,45,Y[CR]
Save ToutOffset_mA in to the EEPROM: !11,MW,46,Z[CR]
ToutScaleV=
20000
Reading[V]
ToutScale_mA=
4000
Reading[mA]
ToutOffset_mA=-TOutScale_mA*Offset_Reading[mA]