Download SPM-8 Multi-Function Power Meter User guide

4.1.5 Aux. Power Supply
Before powering the instrument, verify the pin position at L and N, leave the middle pin blank.
Power standard is 86-242Vac/100-300Vdc.
An internal protection fuse 250V, 1A is equipped.
The instrument power supply must not be earthed.
4.1.6 Current Terminal
The current input are 3 channels/6 terminals(3L 3S 2L 2S 1L 1S)
Input current range from 2mA to 5A (CT secondary)
Warning ！
The CT input current must not exceed 10A
Warning ！
Be sure to short secondaries of each current transformer, before removing the CT connection inputs.
4.1.7 Voltage Terminal
There are 4 voltage terminals(C.B.A.N) 。
The instrument measure voltage from 10V-600V.（PT secondary）
Voltage must not exceed 600V, in case of over 600V, voltage transformer need to be applied.
Note ！
3P3W/2CT and 3P3W/3CT wiring, only connect “C A N”, and leave “B” blank
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