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Electrical Frequency Meter

Model / MPN: ADD3-20205A | NSN: 6625-00-763-8608
ITAR Registered seal

An instrument which measures the rate of regularly recurring variations in an electric current or voltage and is usually calibrated in hertz (cycles per second or cps). The value may be expressed by means of a pointer and calibrated dial vibrating reed or a digital read out display. For instruments which measure radio frequencies, see calibrator, frequency; and wavementer. excludes: counter electronic digital.

Product Details
NATO Stock Number
6625-00-763-8608
Sold in multiples of
1 EA
DEMIL
DEMIL/MLI
Circuit Current For Which Designed
Dc
Overall Length
2.600 inches
Mounting Hole Diameter
Between 0.120 inches and 0.130 inches
Scale Division Quantity
40 single indicator single range
Overall Diameter
2.696 inches
Environmental Protection
Shock resistant and vibration resistant
Mounting Bolt Circle Diameter
2.440 inches
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Three hole/stud bolt circle
Frequency Response Range
+390.000/+410.000 hertz
Frequency Response Range
+390.000 to 410.000 hertz
Dial Scale Marking Color
Black single indicator single range
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
2.200 inches
Meter Body Diameter Behind Mounting Flange
2.070 inches
Movement Type
Moving coil, permanent magnet
Background Color
White single indicator single range
Pointer Color
Black single indicator single range
Power Source
External
Mounting Facility Type And Quantity
3 unthreaded hole
Scale Graduation Type
Linear single indicator single range
Measurement Range
+390.0/+410.0 hertz single indicator single range
Measurement Range
+390.0 to 410.0 hertz single indicator single range
Features Provided
Zero adjuster
Movement Suspension Method
Taut band
Circuit Attachment Method And Quantity
2 threaded stud
Material
Steel
Nuclear Hardness Critical Feature
Nonhardened
Style Designator
Round flush mtg
Fsc Application Data
Test set, elect, equip.

Pricing and Availability

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ADD3-20205A Cross Reference
  • 621
  • 62A100C3024
  • 621-17113
  • ADD3-20205A