Agilent 34970A/34972A Data Acquisition / Switch Unit

Chapter 3 Front-Panel Overview
To Perform a Zero Adjustment
To Perform a Zero Adjustment
The instrument features closed case electronic calibration. No internal
mechanical adjustments are required. The instrument calculates
correction factors based upon an input reference value and stores the
correction factors in non-volatile memory. This procedure demonstrates
making the zero adjustment from the front panel. The gain adjustments
are similar.
DO NOT perform this procedure before reading Chapter 4. Chapter 4
describes this procedure, the required input connections, input signals,
and test considerations required for a valid adjustment.
1 Configure the channel.
You must configure a channel before applying performing the
adjustment procedure. Configure the channel to DC VOLTS and 6½
digits.
2 Apply the input signal
In this example, the input signal is a copper short (see page 76).
3 Setup the calibration.
The display will show PERFORM CAL.
4 Set the adjustment value.
The display will show the a number. Edit the number to the actual input
value. For the Zero Adjustment, the input value is 0.000000.
+000.000,000 mVDC
4
3
5 Begin the adjustment.
The display will show the progress of the adjustment. When all the
adjustments are completed, the display will show done.
DONE
63