Model: 525

Audio Level Meter

Properties:

Circuit Current For Which Designed
Ac
Overall Length
2.775 inches
Center To Center Distance Between Mounting Facilities Parallel To Length
1.750 inches
Center To Center Distance Between Mounting Facilities Parallel To Width
1.750 inches
Overall Height
2.375 inches
Overall Width
2.375 inches
Mounting Hole Diameter
0.112 inches
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Four hole/stud rectangular/square
Dial Scale Marking Color
Black single indicator single range and red single indicator single range
Dial Scale Marking Color
Black and red single indicator single range
Accuracy In Percent
-1.5/+1.5 at full scale single indicator single range
Accuracy In Percent
-1.5 to 1.5 at full scale single indicator single range
Meter Depth Behind Mounting Flange
1.625 inches
Meter Body Diameter Behind Mounting Flange
2.156 inches
Background Color
White single indicator single range
Pointer Color
Black single indicator single range
Power Source
External
Mounting Facility Type And Quantity
4 threaded hole
Scale Graduation Type
Nonlinear single indicator single range
Measurement Range
-20.0/+3.0 decibels above or below one watt single indicator single range
Measurement Range
-20.0 to 3.0 decibels above or below one watt single indicator single range
Scale Selection Method
Terminal
Features Provided
Zero adjuster
Circuit Attachment Method And Quantity
2 threaded stud
Special Markings
Black from m20 to 0 on div scale; red from @o to p3 on div scale
Material
Plastic
Nuclear Hardness Critical Feature
Nonhardened
Style Designator
Rectangular flush mtg
Fsc Application Data
Test set, elect. Equip.
NSN
6625-00-643-3940
Part Number
525
Description
Meter,audio Level
CAGE
63300

An instrument which measures the ratio of electrical power with reference to a predetermined value and is calibrated in units of sound intensity, usually decibels. The value may be expressed by means of a pointer and calibrated dial or a digital readout display. if other than audio frequency ranges, see meter, noise level.

Part 525 NSN 6625-00-643-3940

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16456
FIIG:
A310A0
Concept No.:
App. Key:
A
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
P
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
136740
UFC:
68820
LTL:
RATING VARIABLE
LCL:
--
WCC:
728
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 9030908030
  • SITC: 87479
  • End Use: Measuring, testing, control instruments
  • NAICS: 334515
  • USDA: 1

Freight Class: Parts and accessories of articles of schedule b subheading 9030.39

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