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Important general considerations

 

Great care must be taken when adding datalogging to railway signalling systems.

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Measurement type

Current clamp

Rating

No of turns

DC track circuits

Rowe Hankins NIC361-6A

600mA DC

1

AC track circuits

Northern Design XD-I420-1

5A AC

5MPEC VTi21

1A to 100A AC

1

Points motor current

LEM PointSenz PCM20P

20A DC

1

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