3156B User Manual
Maintenance and Performance Checks 6-40
Racal Instrument © 2005
“0” Offset Adjustment Channel 2
1. Click on Offset 0V in the Channel 2 group
2. Click on Center in the Adjust group
3. Connect a DMM to the 3156B Channel 2 output. Set the DMM
to DC, 100mV measurements
4. Using the Dial or the Up and Down buttons in the Adjust group,
adjust for DMM reading of 0V, ±20mV
“+4V” Offset Adjustment Channel 1
1. Click on Offset 4V in the Channel 1 group
2. Click on Center in the Adjust group
3. Connect a DMM to the 3156B Channel 1 output. Set the DMM
to DC, 10V measurements
4. Using the Dial or the Up and Down buttons in the Adjust group,
adjust for DMM reading of 4V, ±40mV. Note the DMM reading
“-4V” Offset Adjustment Channel 1
1. Click on Offset -4V in the Channel 1 group
2. Click on Center in the Adjust group
3. Connect a DMM to the 3156B Channel 1 output. Set the DMM
to DC, 10V measurements
4. Using the Dial or the Up and Down buttons in the Adjust group,
adjust for DMM reading of -4V, ±40mV
5. 4V and -4V Offset Adjustments until error is the same
on both settings
