©
Page 44 of 97
Issue: 1.04
The top terminal should be connected to the screen of the SPRT’s lead to
minimise electrical noise picked up by the wires.
4.3 Connecting PRTs (3-wire)
The microK can be connected to 3-wire PRTs, although it will not automatically
compensate for cable resistance. The two red terminals should be connected
together and then connected to the ‘single’ end of the 3-wire PRT as follows:
V
I
PRT
The connection to the ‘single’ end of the 3-wire PRT should be short (have a low
resistance) in order to minimise the effect of lead resistance on the measurement.
The top terminal should be connected to the screen of the PRT’s lead to minimise
electrical noise picked up by the wires.
4.4 Connecting PRTs (2-wire)
The microK can be connected to 2-wire PRTs. The two red and two black
measurement terminals should be connected together and then connected to the
PRT as follows:
V
I
PRT
