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Electrical Frequency Meter

Model / MPN: TM231 | NSN: 6625-00-578-5585
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
6625-00-578-5585
Sold in multiples of
1 EA
DEMIL
NO
Circuit Current For Which Designed
Dc
Overall Length
2.078 inches
Mounting Hole Diameter
0.150 inches
Scale Division Quantity
40 single indicator single range
Overall Diameter
3.500 inches
Environmental Protection
Shock resistant and vibration resistant and watertight
Mounting Bolt Circle Diameter
3.160 inches
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Three hole/stud bolt circle
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
1.437 inches
Meter Body Diameter Behind Mounting Flange
2.672 inches
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
+320.0/+440.0 hertz single indicator single range
Measurement Range
+320.0 to 440.0 hertz single indicator single range
Features Provided
Knife edge pointer and zero adjuster
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.
TM231 Series Parts

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TM231 Cross Reference
  • 310-04947