Publication No. 980978 Rev. A 203M User Manual
Astronics Test Systems Calibration Procedure 4-1
Chapter 4
Calibration Procedure
The 203M Charge Amplifier is a plug-in module with the circuitry on a single,
printed board. To calibrate, remove the module and use the Module Power Cord
Assembly TT-1535 to apply power and Board Test Assembly TT-1536 to provide
an interface or monitoring. For adjustment locations refer to Figure 4-1 and
Figure 4-2.
Test Equipment
Note: Equivalent equipment can be substituted.
Multimeter Fluke 8000A
Counter Fluke 1900A
Function Generator Trig-Tek 346B Synthesized Calibrator
Power Cord Assembly Trig-Tek TT-1535.
Board Test Assembly Trig-Tek TT-1536.
Switch Settings
1. Place the CALIB-OPER switch to OPER, the SENSITIVITY switch to 10-110,
the mV/g-pC/g switch to pC/g, the SE-DIFF to SE, the UNITS switch to g’s, the
FULL SCALE switch to 1000, the PEAK-RMS switch to PEAK, the LP FILTER
switch to HIGH, and the output mV/g switch to 10.
2. Turn the DIAL to 10.
3. Place the module to be tested on the bench, and plug the Charge Amplifier
Assembly TT-1536 into the printed circuit board connector at the rear of the
module and the Power Cord Assy. 1535 to the power receptacle.
4. Connect to 50 to 400 Hz, 110 or 220 Volt power.
5. Set the 110-220 switch, S1, as required to accommodate the power used.
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