Model #621-15668

Null meter (NSN 6625-00-405-4383)

Special Features
Ruggedized
Description

2.440 inches maximum overall length, steel material, enamel surface treatment.

Circuit Current For Which Designed
Dc
Dielectric Withstanding Voltage In Volts
3000.0
Mounting Hole Diameter
0.125 inches
Scale Division Quantity
20 single indicator single range
Overall Diameter
2.695 inches
Environmental Protection
Shock resistant and vibration resistant
Mounting Bolt Circle Diameter
2.440 inches
Furnished Items And Quantity
Nut 3; washer 3
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Three hole/stud bolt circle
Sensitivity Rating
30.0 microamperes
Dial Scale Marking Color
White single indicator single range
Accuracy In Percent
-3.0/+3.0 at full scale single indicator single range
Accuracy In Percent
-3.0 to 3.0 at full scale single indicator single range
Unable To Decode
Unable to decode or unable to decode
Meter Depth Behind Mounting Flange
1.170 inches
Meter Body Diameter Behind Mounting Flange
2.150 inches
Movement Type
Moving coil, permanent magnet
Background Color
Black single indicator single range
Pointer Color
White single indicator single range
Scale Marking
10; 5; 0; 5; 10
Mounting Facility Type And Quantity
3 screw and 3 unthreaded hole
Scale Graduation Type
Linear single indicator single range
Features Provided
Magnetic shield and zero adjuster
Movement Suspension Method
Jewel pivot base
Circuit Attachment Method And Quantity
2 screw and 2 solder lug
Special Markings
Plus sign under positive terminal; sealed do not open on back of meter
Nuclear Hardness Critical Feature
Nonhardened
Style Designator
Round flush mtg
Supplementary Features
Calibrated 15 degrees from vert, tilted back
Fsc Application Data
Test set, elect. Equip.
Description
Meter,null
Cage Code
77221

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Updated: 11/23/2024