Cal Power TrueWave TW5250, Руководство по обслуживанию

Страница: 49 / 84

SERVICE MANUAL CALIBRATION
3-13
Set the TW’s frequency to 160 Hz with the following GPIB command:
SOUR:FREQ 160.0
Wait for the DMM reading to settle and record the value as RDNG3 .
Query the TW’s output put voltage with the GPIB string below and record this value as
MEAS3 .
MEAS {1,2,3} :VOLT?
Set the TW’s frequency to 320 Hz with the following GPIB command:
SOUR:FREQ 320.0
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:LOR:VOLT:FREQCAL VALUE1 VALUE2 VALUE3 VALUE4 VALUE5