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3151 And 3151A User Manual
Maintenance and Performance Checks 5-17
Offset Adjustment
Equipment: DMM, 50
Ω
feedthrough termination
1. Configure the Model 3151/3151A as follows:
Function:
Sine
Frequency:
1 MHz
Amplitude:
1.61V
Offset:
+7.19V
Remote Commands: :RES
:OUTP ON
:FREQ 1e6
:VOLT 1.61
:VOLT:OFFS 7.19
2. Connect the Model 3151/3151A output to the DMM input
through the 50
Ω
feedthrough termination. Set the DMM to
DCV measurements and 10 V range. Record this reading.
3. Change the offset setting to -7.19 V and adjust R85 to
have the exact reading as was recorded in the previous
step (with reversed polarity).
4. Adjust R62 until the DMM reading is -7.19 V
"
30 mV.
5. Repeat Steps 3 and 4 until the best result is obtained in
both steps.
Summary of Contents for 3151
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