MIL-PRF-10304/5G
REQUIREMENTS:
(Readings expressed as percent of full-scale value.)
Dimensions and configuration: See figure 1.
Full-scale ranges: See table I.
Scale:
Length: 1.5 inches minimum.
Pointer deflection: 10° minimum.
Position influence: ±2 percent change for 60° rotation from normal operating position.
Accuracy: ±2 percent.
Overshoot: 40 percent maximum.
Response time: 2 seconds maximum.
Power consumption (loss) (at end scale deflection):
Microammeters and milliammeters: 150 mV maximum.
Ammeters (self-contained): 75 mV maximum.
Ammeters (external shunt): 50 mV ±2 percent with leads of 0.065 ±0.010 ohms resistance.
High temperature cycling:
±4 percent
±2 percent permanent change.
Temperature influence: ±1 percent change.
Exposure to extreme temperatures: ±3 percent permanent change.
Overload capacity:
Momentary overload: ±2 percent change.
Sustained overload:
±1 percent temporary zero shift.
±1 percent permanent zero shift.
±2 percent permanent change.
Dielectric withstanding voltage: 3,000 volts rms.
Vibration random drop, and shock: Repeatability not applicable for microammeters below 100 µA ranges.
TABLE I. Full-scale ranges.
Microamperes
Milliamperes
Amperes
Zero left
Zero center
Zero left
Zero center
Zero left
Zero center
Kiloamperes
10
30-0-30
1
1-0-1
1
1-0-1
1/ 1.0
20
50-0-50
5
5-0-5
2
5-0-5
1/ 1.2
30
100-0-100
10
10-0-10
5
10-0-10
50
300-0-300
50
50-0-50
10
1/ 10-0-30
100
500-0-500
100
100-0-100
20
1/ 20-0-20
200
200
500-0-500
30
1/ 30-0-30
300
300
1/
50
500
500
1/
100
1/
200
1/
300
1/
500
1/ Used with external shunt.
2