Remote Low Range Frequency Calibration - Cal Power TrueWave TW5250 Service Manual

CALIBRATION
Wait for the DMM reading to settle and record the value as RDNG4.
Query the TW's output put voltage with the GPIB string below and record this value as
MEAS4.
MEAS{1,2,3}:VOLT?
Set the TW's frequency to 500 Hz with the following GPIB command:
SOUR:FREQ 500.0
Wait for the DMM reading to settle and record the value as RDNG5.
Query the TW's output put voltage with the GPIB string below and record this value as
MEAS5.
MEAS{1,2,3}:VOLT?
Set the TW's frequency to 60 Hz and open the output with the following GPIB
commands:
SOUR:FREQ 60.0
OUTP OFF
Calculate the measurement system frequency compensation values:
VALUE1 = RDGN1 / MEAS1
VALUE2 = RDGN2 / MEAS2
VALUE3 = RDGN3 / MEAS3
VALUE4 = RDGN4 / MEAS4
VALUE5 = RDGN5 / MEAS5
Update the TW's calibration data with the following GPIB command:
CAL{1,2,3}:MEAS:LOC:HIR:VOLT:FREQCAL VALUE1 VALUE2 VALUE3 VALUE4 VALUE5

3.13 REMOTE LOW RANGE FREQUENCY CALIBRATION

Connect the TW output to the DMM. Set the DMM up for auto–ranging AC voltage.
Set the TW into AC coupling, remote sense, 40 Hz, 120V, and low range by sending
the following GPIB strings:
OUTP:COUP AC
SOUR:VOLT:RANGE LOW
SOUR:SENSE REMOTE
SOUR:FREQ 40.0
SOUR{1,2,3}:VOLT 120.00
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TW SERIES