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Electrical Frequency Meter

Model / MPN: 350R | NSN: 6625-00-201-7238
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
6625-00-201-7238
Sold in multiples of
1 EA
DEMIL
NO
Circuit Current For Which Designed
Ac
Overall Length
3.150 inches
Scale Division Quantity
50 single indicator single range
Frequency Rating
400.0 hertz
Mounting Stud Length
0.500 inches
Overall Diameter
3.490 inches
Environmental Protection
Watertight
Mounting Bolt Circle Diameter
3.160 inches
Furnished Items And Quantity
Mtg hdw 3; term. Hdw 2
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Three hole/stud bolt circle
Sensitivity Rating
3.0 volt-amperes
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
2.750 inches
Meter Body Diameter Behind Mounting Flange
2.670 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 threaded stud
Scale Graduation Type
Linear single indicator single range
Measurement Range
+350.0/+450.0 hertz single indicator single range
Measurement Range
+350.0 to 450.0 hertz single indicator single range
Mounting Stud Diameter
0.138 inches
Scale Selection Method
Terminal
Features Provided
Zero adjuster
Movement Suspension Method
Jewel pivot base
Circuit Attachment Method And Quantity
2 solder lug and 2 threaded stud
Operating Voltage Rating In Volts
Between 90.0 ac and 150.0 ac
Phase
Single
Material
Steel
Nuclear Hardness Critical Feature
Nonhardened
Style Designator
Round flush mtg
Fsc Application Data
Test set, elect. Equip.
350R Series Parts
Solicitations
Solicitation Description Qty UOM Close Date
SPE7M115TD927 Meter, Electrical Fr 1 EA 03/12/2015
SPE7M116T3864 Meter, Electrical Fr 1 EA 11/09/2015
SPE7M020T8328 Meter, Electrical Fr 1 EA 05/04/2020

Pricing and Availability

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350R Cross Reference
  • 587AS150-1
  • 587AS150
  • 587AS150-1