TM 1-4920-446-13 & P
3-89. Instruments - Calibration (USATSG)
This task covers: Calibration
Tools and Equipment
0-6000 PSI calibrated standard gauge
0-300 PSI calibrated standard gauge
Standard thermometer (to 2000F)
Test stand doors open, not operating, and fluid pressure relieved.
Calibration will be performed by the U.S. Army, Measurement and Diagnostic Equip-
ment Support Group.
CALIBRATION - HIGH PRESSURE GAUGE
Method I (Primary)
Connect a suitable 0-6000 psi calibrated standard gauge to the HP gauge test port on the panel (20).
Operate system under normal condition. See Chapter 2 for operating instructions.
Compare the test stand gauge readings with the readings on the calibrated standard gauge at various points over the
The gauge readings must agree within one percent ± 1/2 percent or less of full scale.
If the test stand gauge readings are inaccurate or erratic, replace the gauge.
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