TM 11-6625-3087-12
8. MEASUREMENT/ENTRY display (2) indicates insertion loss of the device connected to BNC input plus output level
shifts due to unequal source and termination impedance.
NOTE
If device impedance is not 75 impedance matching devices must be used between device
to be measured and Level Meter.
Section IV.
OPERATION UNDER UNUSUAL CONDITIONS
2-20. OPERATION IN EXTREME HEAT AND EXTREME COLD.
a. Operate the Level Meter only in a temperature range of 0 to +55 C (32 to 131 F).
b. Make sure the filter is clean and at least one inch of open space exists from the rear and side panels.
2-21. OPERATION IN WET WEATHER.
a. The Level Meter will operate normally in 95% relative humidity at +40 C.
b. If the Level Meter has gotten wet, allow it to dry completely before using.
2-22. OPERATION IN SANDY OR DUSTY AREAS.
a. Do not operate the Level Meter in sandy or dusty areas.
2-23. EMERGENCY PROCEDURES.
a. Reduction of power. The Level Meter will operate with power reduced from 90 to 105Vac, 108 to 126Vac, 198 to
231Vac or from 216 to 252Vac. The Level Meter will not operate with any further reduction of power.
2-41/(2-42 Blank)
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