DC Adjustment Procedure (cont’d)
Test Procedure
(cont’d)
5. Trigger the DMM and note the read ing.
6. Send the reading to the AFG:

CAL:DC:POINT? <reading>

where <reading> is the DMM reading from step 5. The AFG will

return, in order, the number of the current cal point and a n e rror c ode .

Any non-zero error code indicates a failure.

Table 3-1. DMM Range Setting for Cal Points 41 and 43
Absolute Value
of DC Offset DMM Range
Less than 10 mV 100
Between 10 mV and 100 mV 1000
Greater than 100 mV Offset too high - abort cal
Table 3-2. DC Calibration Points
Cal
Point DMM Settings
(changes only)
1
29
31
33
41
43
DCV, 10 V range, 10 NPLC
1 V range, 20 NPLC
10 V*
100 mV range
4-wire ohms, offset comp on*
4-wire ohms, offset comp on*
*See Step 4 of the "DC Adjustment Procedure" for
special instructions.
Agilent E1445A Service Manual Adjustments 89