PD138 Minimux
®
II Temp & Process Scanner
Instruction Manual
13
4-20 mA Inputs
A special version of the Minimux
®
II
is used to switch 4-20 mA signals.
PD138-X-CL versions have a built-in resistor network that eliminates loop
interruptions. The process meter must be setup for 1-5 V input and the
complete system should be calibrated together.
The PD6000’s internal transmitter power supply may be used to power the
transmitters. However, only the transmitter that is currently selected will
be powered and all others will not be powered. Care should be taken to
provide the transmitter with sufficient time to stabilize to provide an
accurate output.
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