Model #122.954

Arbitrary scale meter (NSN 6625-00-920-4263)

Special Features
Ruggedized; error in freq indication shall not exceed porm 2.4 hz
Description

4.625 inches maximum overall length, steel corrosion resisting material, enamel semigloss surface treatment.

Circuit Current For Which Designed
Dc
Dielectric Withstanding Voltage In Volts
3000.0
Mounting Hole Diameter
0.125 inches
Overall Diameter
2.695 inches
Environmental Protection
Submersible and vibration resistant and watertight
Mounting Bolt Circle Diameter
2.440 inches
Furnished Items And Quantity
Term. Hdw 2
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Three hole/stud bolt circle
Frequency Response Range
+380.000/+420.000 hertz
Dial Scale Marking Color
Black, federal standard 595, 27038 single indicator single range
Accuracy In Percent
-0.6/+0.6 at 1/2 scale single indicator single range
Unable To Decode
Unable to decode or unable to decode
Meter Depth Behind Mounting Flange
1.600 inches
Meter Body Diameter Behind Mounting Flange
2.210 inches
Movement Type
Moving coil, permanent magnet
Background Color
White single indicator single range
Pointer Color
Black, federal standard 595, 27038 single indicator single range
Scale Marking
2 bands marked bad and 1 marked good
Mounting Facility Type And Quantity
3 unthreaded hole
Scale Graduation Type
Nonlinear single indicator single range
Features Provided
Rfi shielding
Movement Suspension Method
Jewel pivot base
Circuit Attachment Method And Quantity
2 solder lug and 2 threaded stud
Special Markings
Bands marked bad from 375 to 380 hz and from 420 to 425 hz, good band from 380 to 420 hz deflections
Nuclear Hardness Critical Feature
Nonhardened
Style Designator
Round flush mtg
Supplementary Features
Input limits 103.5 to 126.5 vac rms without exceeding initial accuracy; attenuation due to conductive coating of window shall be 80 db min at 3 mhz
Fsc Application Data
Test set, elect. Equip.
Description
Meter,arbitrary Scale
Cage Code
34830

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Updated: 06/02/2024