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Electrical Frequency Meters
Part ES12781
Model #ES12781
Electrical frequency meter (NSN 6625-00-239-7405)
Special Features
Tropicalized
Mounting Hole Diameter
0.125 inches
Overall Diameter
3.250 inches
Mounting Bolt Circle Diameter
1.438 inches
Indicator Type
Dial w/pointer
Installation Design
Panel
Register Quantity
1
Mounting Arrangement Style
Three hole/stud bolt circle
Frequency Response Range
+59.000/+61.000 hertz
Frequency Response Range
+59.000 to 61.000 hertz
Resonant Reed Quantity
5
Accuracy In Percent
-2.0/+2.0 at full scale single indicator single range
Accuracy In Percent
-2.0 to 2.0 at full scale single indicator single range
Meter Depth Behind Mounting Flange
2.562 inches
Meter Body Diameter Behind Mounting Flange
2.344 inches
Movement Type
Vibrating reed
Power Source
External
Mounting Facility Type And Quantity
3 unthreaded hole
Measurement Range
+59.0/+61.0 hertz single indicator single range
Measurement Range
+59.0 to 61.0 hertz single indicator single range
Features Provided
Zero adjuster
Circuit Attachment Method And Quantity
2 threaded stud
Special Markings
3600 rpm slow fast above scale; motor speed below scale
Nuclear Hardness Critical Feature
Nonhardened
Style Designator
Round flush mtg
Fsc Application Data
Test set, elect. Equip.
Description
Meter,electrical Frequency
Cage Code
71053
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Part Number:
ES12781
NSN 6625-00-239-7405
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Updated: 05/17/2024