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Adjustable AC power supply 0-277 volts, 5KVA
Low impedance adjustable load 10
-30
, 4000 watts
10.2. Hardware Calibration
This paragraph covers the hardware calibration procedure for the LCT Leakage
8.00mA
– 10.00mA range. The hardware calibration is required to be performed prior
to the standard software calibration of the LCT MD Volts x0.1 range only when the
LAM board (LAM7800) is replaced. This is also true if the LCT Board (LCT7800) and
LAM board (LAM 7800) are simultaneously replaced.
Required Measurement Standard:
Wideband Voltmeter 100 kHz capable of measuring to 10 VAC
Sine Wave Generator 100 Hz to 100 kHz capable
Procedure
:
1. Connect the Probe-HI and Probe-LO leads to output of the Sine Wave
Generator and in parallel with Wideband Voltmeter.
2. Select the LCT step and set Leakage-HI = 10.00mARMS in manual ranging
mode with filter set to AC+DC, Dwell Time = 0.0s, Measuring Device to
“Frequency Check”, and Probe configuration to “Probe-HI To Probe-LO”.
3. Set the output frequency of the Sine Wave Generator to 100 kHz.
4. Adjust output of the Sine Wave Generator to 10.00VRMS or to maximum that
generator provides. To meet required accuracy the Voltage should be bigger
than 5.00VRMS. Control the output voltage with the standard Wideband
Voltmeter. Write down the RMS Leakage current that the OMNIA 2 meter
indicates.
5. Change the output frequency of the Sine Wave Generator to 100 Hz and adjust
the output voltage to the same value.
6. Adjust the VR1 on the OMNIA 2 to have the Leakage current as close as
possible to the value recorded above.
10.3. Calibration Initialization
Press and hold the calibration key on the rear panel with a pen, pencil or small
screwdriver while powering ON the OMNIA. The OMNIA enters calibration mode after
the power on sequence is complete. The Initial Calibration screen will appear as
follows:
Summary of Contents for OMNIA II 8204
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Page 87: ...81 conditions The different combinations are represented in the table below ...
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Page 139: ...133 7 128 Power On PROMPT ESR ESE STB SPOLL SRE ESE SRE ...
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Page 169: ...163 Print Report Example ...
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