HP E1411A, Service Manual

Page: 42 / 78

NOTE
*RST sets Auto Zero to ON and Power Line Cycles to 1.
Adjustment
Procedure
1.
Set the AC Standard output to 5.6 Vac at 1 kHz
2.
Set the HP E1411 range to 5.6 V, and adjust the multimeter
at 5.6 V using:
FUNC:VOLT:AC
VOLT:AC:RANG 5.6
CAL:VAL 5.6
TRIG:DEL .05
CAL?
3.
Verify that the returned calibration error code is 0 (no error).
If not 0, see Table 5-1 for a list of calibration errors and codes.
4.
Remove power and disconnect test equipment
Example: AC Voltage
Adjustments
This example performs an AC voltage adjustment for a power line reference
frequency of 60 Hz. Change line 20 to OUTPUT 70903;"CAL:LFR 50" for
50 Hz operation.
If no calibration error occurs (Cal_code = 0 in line 130), the program
displays an "adjustment complete" message. If a calibration error occurs,
the program displays the calibration error (see Table 5-1 for a list of
calibration errors).
When connected to the HP E1411 multimeter, some AC Standards may
exhibit voltage variations at the start of a measurement. TRIG:DEL .05 (line
110) adds a 0.8 sec wait before calibration begins to allow settling time for
the AC Standard output. TRIG:DEL .05 is used since the input is sampled
16 times before the calibration is performed. Thus, total delay added = 0.05
seconds x 16 = 0.8 seconds.
42 Adjustments Chapter 5