Model: 820-158B

Audio Level Meter

Special Features:

12 volts direct current series lamp

Properties:

Circuit Current For Which Designed
Dc
Overall Length
2.300 inches
Overall Height
1.468 inches
Overall Width
2.990 inches
Barrel Width
2.990 inches
Indicator Type
Dial w/pointer
Installation Design
Panel
Sensitivity Rating
1.0 milliamperes
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
2.180 inches
Meter Body Width Behind Mounting Flange
2.990 inches
Movement Type
Moving coil, permanent magnet
Background Color
White single indicator all ranges
Pointer Color
Black single indicator all ranges
Power Source
External
Scale Graduation Type
Nonlinear single indicator all ranges
Measurement Range
-10.0/+100.0 decibels single indicator 1st range
Measurement Range
-10.0/+6.0 decibels above or below one milliwatt single indicator 2nd range
Measurement Range
-10.0 to 100.0 decibels single indicator 1st range
Measurement Range
-10.0 to 6.0 decibels above or below one milliwatt single indicator 2nd range
Meter Body Height Behind Mounting Flange
2.270 inches
Meter Barrel Depth
0.440 inches
Features Provided
Self-illumination facility and zero adjuster
Movement Suspension Method
Taut band
Circuit Attachment Method And Quantity
4 wire lead
Material
Plastic
Nuclear Hardness Critical Feature
Nonhardened
Style Designator
Rectangular flush mtg barrel, down
Supplementary Features
Internal resistance: 35 ohms
Fsc Application Data
Test set, elect. Equip.
NSN
6625-00-160-5458
Part Number
820-158B
Description
Meter,audio Level
CAGE
32171

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 820-158B NSN 6625-00-160-5458

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:
0.4000lbs
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:
136740
UFC:
68820
LTL:
RATING VARIABLE
LCL:
--
WCC:
657
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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