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|  MIL-T-81527B(AS)
3.4.1.6.6.9 Panel Indicators.
The following monitors and indicators shall
be provided on the control panel.
(a) FAULT-PRESS (Pressure) - The pressure indicating lamp shall
light when the pumping unit supply pressure is below normal operating value.
The lamp lens shall be red with the legend PRESS in black letters.
(b) FAULT-FILTER - the filter indicating lamp shall light when the
pressure drop across the filter element reaches 80 + 12 psi. The lamp lens
shall be red with the legend FILTER in black letters.
(C) FAULT-PUMP - The pump indicating lamp shall light when the in-
let pressure to the pump is below the minimum required inlet pressure. The
lamp lens shall be red with the legend PUMP in black letter.
(d) SUPPLY PRESSURE - A 0-2000 psi Pressure Gauge shall be pro-
vided to monitor the supply line pressure downstream of all other components.
Major graduations shall be a 0, 1000 and 2000 psi with minor graduations
every 100 psi.
The gauge shall have an accuracy of 3 percent of full scale
reading.
(e) HOURS - An elapsed Time Meter per MS17322 shall be provided
to indicate total operation time of the Hydraulic Supply Pump and Blower.
(f) Fluid Level Indicator - A gauge shall be provided to indicate the
Hydraulic fluid level. The reservoir fluid level shall be visible from out-
side the unit when the reservoir is from 1/3 to 3/4 full.
(g) AC C- PRESS (Accumulator Pressure) - When the nitrogen pressure
in the accumulator is less than 380 psig and power is applied to start the unit,
a red indicator shall be illuminated.
3.4.1.6.6.10 Protective Devices.
3.4.1.6.6.10.1 CIRCUIT BREAKER. A Circuit Breaker shall be provided
suitable for 115V phase to neutral, 200V, phase to phase, 3-phase, 400-Hz
operation.
It shall be a mechanically coupled, 3-pole, manual reset type
and shall have a maximum continuous rating of at least 10 A.
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