Model: 47B

Audio Level Meter

Properties:

Circuit Current For Which Designed
Ac
Dielectric Withstanding Voltage In Volts
2000.0
Overall Length
2.463 inches
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
3.000 inches
Overall Width
3.125 inches
Mounting Hole Diameter
0.228 inches
Furnished Items And Quantity
Nuts 4; washers 4
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Four hole/stud rectangular/square
Frequency Response Range
+2.000/+30.000 kilohertz
Frequency Response Range
+2.000 to 30.000 kilohertz
Dial Scale Marking Color
Black single indicator all ranges
Accuracy In Percent
-2.0/+2.0 at full scale single indicator all ranges
Accuracy In Percent
-2.0 to 2.0 at full scale single indicator all ranges
Meter Depth Behind Mounting Flange
1.375 inches
Meter Body Diameter Behind Mounting Flange
2.750 inches
Movement Type
Moving coil, permanent magnet
Background Color
White single indicator all ranges
Pointer Color
Black single indicator all ranges
Power Source
External
Mounting Facility Type And Quantity
4 unthreaded hole
Scale Graduation Type
Nonlinear single indicator all ranges
Measurement Range
+0.0/+100.0 percent modulation single indicator 2nd range
Measurement Range
-20.0/+3.0 decibels single indicator 1st range
Measurement Range
+0.0 to 100.0 percent modulation single indicator 2nd range
Measurement Range
-20.0 to 3.0 decibels single indicator 1st range
Features Provided
Zero adjuster
Movement Suspension Method
Jewel pivot base
Circuit Attachment Method And Quantity
2 threaded stud
Special Markings
Red band from 0 to 3
Material
Plastic
Nuclear Hardness Critical Feature
Nonhardened
Special Test Features
Item meets fcc standards
Style Designator
Rectangular flush mtg
Fsc Application Data
Test set, electronic equipment
NSN
6625-00-635-4304
Part Number
47B
Description
Meter,audio Level
CAGE
55026

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 47B NSN 6625-00-635-4304

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:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061700
UFC:
34580
LTL:
RATING VARIABLE
LCL:
--
WCC:
658
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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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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