Model #MK777-294

Electrical frequency meter (NSN 6625-00-649-4724)

Special Features
Ruggedized
Description

3.345 inches nominal overall length, plastic material, paint surface treatment.

Circuit Current For Which Designed
Ac
Dielectric Withstanding Voltage In Volts
1500.0
Center To Center Distance Between Mounting Facilities Parallel To Length
2.250 inches
Center To Center Distance Between Mounting Facilities Parallel To Width
2.250 inches
Overall Height
3.125 inches
Overall Width
3.000 inches
Frequency Rating
Between 380.0 hertz and 420.0 hertz
Mounting Stud Length
0.500 inches
Environmental Protection
Airtight and dust resistant and fungus resistant and heat resistant and humidity resistant and shock resistant and vibration resistant and water resistant
Furnished Items And Quantity
Nut 10; lockwasher 4; flat washer 4; seal 1
Indicator Type
Vibrating reed
Installation Design
Panel
Register Quantity
1
Mounting Arrangement Style
Four hole/stud rectangular/square
Frequency Response Range
+380.000/+420.000 hertz
Frequency Response Range
+380.000 to 420.000 hertz
Dial Scale Marking Color
Black single indicator single range
Resonant Reed Quantity
11
Meter Depth Behind Mounting Flange
2.312 inches
Meter Body Diameter Behind Mounting Flange
2.800 inches
Movement Type
Vibrating reed
Background Color
White single indicator single range
Power Source
External
Mounting Facility Type And Quantity
4 threaded stud
Measurement Range
+380.0/+420.0 hertz single indicator single range
Measurement Range
+380.0 to 420.0 hertz single indicator single range
Mounting Stud Diameter
0.112 inches
Scale Selection Method
Terminal
Features Provided
Magnetic shield
Movement Suspension Method
Jewel pivot base
Circuit Attachment Method And Quantity
2 threaded stud
Operating Voltage Rating In Volts
150.0 ac
Nuclear Hardness Critical Feature
Nonhardened
Style Designator
Rectangular flush mtg
Fsc Application Data
Test set, elect. Equip.
Description
Meter,electrical Frequency
Cage Code
0BZM1

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Updated: 11/22/2024