Service manual

• Power Line Cycles (PLC) .............................................. 1
• Line Freq Reference (CAL:LFR) ............. 50 Hz or 60 Hz
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 Agilent E1326B 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
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 and an input of 5.6 Vac @ 1 kHz. 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 Agilent E1326B multimeter, some AC
Standards may exhibit voltage variations at the start of a measurement.
TRIG:DEL .05 (line 110) adds a 0.8 second 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 added delay = 0.05 seconds x 16 = 0.8 second.
1 ! AC Voltage Adjustments
2 !
10 OUTPUT 70903;"*RST" Set autozero on and PLC 1
20 OUTPUT 70903;"CAL:LFR 60" Set 60 Hz line ref frequency
5-6 Adjustments