Model #522-1-1-00003

Audio level meter (NSN 6625-00-121-1567)

Special Features
Ruggedized
Description

2.486 inches nominal overall length, plastic material.

Circuit Current For Which Designed
Dc
Center To Center Distance Between Mounting Facilities Parallel To Length
3.537 inches
Center To Center Distance Between Mounting Facilities Parallel To Width
3.978 inches
Overall Height
4.259 inches
Overall Width
5.248 inches
Mounting Stud Length
0.500 inches
Environmental Protection
Shock resistant and vibration resistant
Furnished Items And Quantity
Nut 6; washer 4
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Four hole/stud rectangular/square
Sensitivity Rating
1.0 milliwatts
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
0.944 inches
Meter Body Diameter Behind Mounting Flange
2.711 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
4 threaded stud
Scale Graduation Type
Nonlinear single indicator single range
Measurement Range
-20.0/+0.0 decibels single indicator single range
Measurement Range
-20.0 to 0.0 decibels single indicator single range
Mounting Stud Diameter
0.138 inches
Features Provided
Zero adjuster
Movement Suspension Method
Jewel pivot base
Circuit Attachment Method And Quantity
2 threaded stud
Special Markings
L side of scale to m 10 black band; below scale: add to receive level setting
Nuclear Hardness Critical Feature
Nonhardened
Style Designator
Rectangular flush mtg
Fsc Application Data
Test set, elect. Equip.
Description
Meter,audio Level
Cage Code
13913

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Updated: 11/23/2024