METER No. 100

These were a totals meter and cannot be reset.  They were used in telephone exchanges for recording the number of calls and traffic data.

Zinc plated with black enamelled detachable brass cover having a window in front of the number wheels.

Range 0000 to 9999.

Dimensions - 114mm x 26mm x 26mm.
 

Meter No. Coil resistance (Ohms) Operating current (mA)
100A 500 32
100B 2300 29.7
100C 2300 16.5
100D 4.1 260

 

 

 
 
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Last revised: July 15, 2024

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