Model #MMI-10109

Electrical frequency meter (NSN 6625-01-159-6446)

Special Features
Freq transducer and matched meter are serialized to identify a matched pair
Description

2.560 inches nominal overall length, steel material, cadmium and chromate surface treatment.

Circuit Current For Which Designed
Ac
Dielectric Withstanding Voltage In Volts
1500.0
Mounting Hole Diameter
0.150 inches
Scale Division Quantity
40 single indicator single range
Overall Diameter
3.500 inches
Environmental Protection
Cold resistant and heat resistant and shock resistant and vibration resistant
Mounting Bolt Circle Diameter
3.160 inches
Furnished Items And Quantity
Transducer 1; nut 4; washer 4
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
-0.25/+0.25 at 1/2 scale single indicator single range
Unable To Decode
Unable to decode or unable to decode
Meter Depth Behind Mounting Flange
1.380 inches
Meter Body Diameter Behind Mounting Flange
2.760 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 screw and 3 unthreaded hole
Scale Graduation Type
Linear single indicator single range
Measurement Range
+360.0/+440.0 hertz single indicator single range
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 105.0 ac and 135.0 ac
Special Markings
Red band from 360 to 390 hz and from 410 to 440 hz; green band from 390 to 410 hz
Nuclear Hardness Critical Feature
Nonhardened
Special Test Features
Conforms to mil-m-10304/12
Style Designator
Round flush mtg
Supplementary Features
Transducer has two screw term. Ea of two sides
Description
Meter,electrical Frequency
Cage Code
28304

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Updated: 11/22/2024