250° Long Scale
Panel Meters
Round Style: 2523, 2524, 2543, 2544
Century Style: 2123L, 2143L
• Excellent readability -- more than double the scale length of standard movements
• Sealed round metal or square plastic cases with glass windows
• Zero adjust from front panel
Ordering Information
Percent Motor Load Meters
Range
0 - 5 ACA
Motor Load Current **
*
**
Self-Shielding Movement
Model / Size and Catalog Number
3 - 1/2”
Model 2543
<>
<>
3 - 1/2”
Model 2143L
17918
17919
4 - 1/2”
Model 2544
<>
<>
Approx.
Impedance
(Ohms) @ 60 Hz
0.5VA Maximum *
Internal transformer burden
Dial reads 0-150% Motor Load Current
< > Available on special order
AC Voltmeters Rectifier Type
Range
0-10
0-30
0-150
0-300
< > Available on special order
2000Ώ/V
Approx.
Impedance
(Ohms) @ 60 Hz
Self-Shielding Movement
Model / Size and Catalog Number
3 - 1/2”
Model 2543
17990
<>
17978
17979
3 - 1/2”
Model 2143L
<>
17915
17916
17917
4 - 1/2”
Model 2544
17995
<>
17988
17989
1
Rev. 05-15
250° Long Scale
Panel Meters
Ordering Information
DC Millivoltmeters
Range
0-50
Self-Shielding Movement
Model / Size and Catalog Number
3 - 1/2”
Model 2523
17977
3 - 1/2”
Model 2123L
17914
4 - 1/2”
Model 2524
17987
Approx.
Impedance
(Ohms) @ 60 Hz
10
DC Microammeters
Range
0-50
0-100
0-500
Self-Shielding Movement
Approx.
Impedance
(Ohms)
8000
4200
340
Model / Size and Catalog Number
3 - 1/2”
Model 2523
17970
17971
17972
3 - 1/2”
Model 2123L
17910
17911
17912
4 - 1/2”
Model 2524
17980
17981
17982
DC Milliammeters
Range
0-1
0-10
0-500
1-0-1
Self-Shielding Movement
Approx.
Impedance
(Ohms)
135.0
10.0
0.2
50.0
Model / Size and Catalog Number
3 - 1/2”
Model 2523
17973
17974
17975
17996
3 - 1/2”
Model 2123L
17913
<>
<>
<>
4 - 1/2”
Model 2524
17983
17984
17985
17997
< > Available on special order
DC Ammeters
Range
0-10
Self-Shielding Movement
Approx.
Impedance
(Ohms)
.005
Model / Size and Catalog Number
3 - 1/2”
Model 2523
35098
3 - 1/2”
Model 2123L
<>
4 - 1/2”
Model 2524
35099
< > Available on special order
Meters are supplied as 50 millivolt and requires an external shunt #06704
2
Rev. 05-15
250° Long Scale
Panel Meters
Specifications
Accuracy
Movement
Suspension
Tracking
Shielding
Response Time
Overload (1 sec.)
Overload (Continous)
Repeatability
Dial
Case
Resistance
Operating Temperature
Pointer
Scale Length
AC ±3% full scale (F.S.)
DC ±2% full scale (F.S.)
AC: Rectifier type
DC: Self-shielded, permanent magnet
Pivot and jewel
±3%
Calibration is unaffected by magnetic panel mounting
1.5 seconds maximum
10 times F.S.
1.5 times F.S.
2%
Sharp clear scale. Each dial arc is calibrated to track the specific type of movement used
Models 2523, 2524, 2543 & 2544: Metal
Models 2123L, 2143L: Black plastic
±15% of meter impedance
-4°F to +149°F (-20°C to +65°C)
Red, knife-edge
Models 2123L, 2523, 2543 & 2143L: 4.77" (121.16mm)
Models 2524, 2544: 6.54" (166.0mm)
Dimensions
3 - 1/2" Model 2543, 2523 Round Style
3
Rev. 05-15
250° Long Scale
Panel Meters
Dimensions
4 - 1/2" Model 2524, 2544 Round Style
3 - 1/2" Model 2123L, 2143L Square Style
4
Rev. 05-15
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