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TM 1-4920-446-13 & P
3-89. Instruments - Calibration (USATSG)
3-89
This task covers: Calibration
INITIAL SETUP
Tools and Equipment
0-6000 PSI calibrated standard gauge
0-300 PSI calibrated standard gauge
Standard thermometer (to 2000F)
Personnel Required:
MOS 35H
Equipment Condition:
Test stand doors open, not operating, and fluid pressure relieved.
NOTE
Calibration will be performed by the U.S. Army, Measurement and Diagnostic Equip-
ment Support Group.
CALIBRATION - HIGH PRESSURE GAUGE
Method I (Primary)
1.
Connect a suitable 0-6000 psi calibrated standard gauge to the HP gauge test port on the panel (20).
2.
Operate system under normal condition. See Chapter 2 for operating instructions.
3.
Compare the test stand gauge readings with the readings on the calibrated standard gauge at various points over the
scale.
4.
The gauge readings must agree within one percent ± 1/2 percent or less of full scale.
5.
If the test stand gauge readings are inaccurate or erratic, replace the gauge.
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