Model #990622

Electrical frequency meter (NSN 6625-00-844-6631)

Description

3.156 inches nominal overall length.

Mounting Hole Diameter
0.125 inches
Overall Diameter
2.685 inches
Mounting Bolt Circle Diameter
2.440 inches
Indicator Type
Dial w/pointer
Installation Design
Panel
Register Quantity
1
Frequency Response Range
+380.000/+420.000 hertz
Resonant Reed Quantity
11
Accuracy In Percent
-0.5/+0.5 at full scale single indicator single range
Meter Depth Behind Mounting Flange
2.343 inches
Meter Body Diameter Behind Mounting Flange
2.210 inches
Movement Type
Vibrating reed
Mounting Facility Type And Quantity
3 unthreaded hole
Measurement Range
+100.0/+150.0 volts, dc single indicator single range
Features Provided
Zero adjuster
Circuit Attachment Method And Quantity
2 solder lug
Nuclear Hardness Critical Feature
Nonhardened
Special Test Features
Part iaw mil-std-130
Style Designator
Round flush mtg
Supplementary Features
Individual reeds are tuned to within porm 0.3 pct of their ratio frequency
Fsc Application Data
Test set, elect. Equip.
Description
Meter,electrical Frequency
Cage Code
77221

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Updated: 06/26/2024