3.4.2 Current Output (Retransmission), option 03
The Current output board can support current loops generated from an external
power supply, or generate a loop source from the instrument itself. Both of these
cases are shown in the diagrams below.
Note that connecting directly across pins 1& 3 may cause damage to the
output card.
The instrument may be used as a voltage output by connecting a suitable resistor
between pins 1 and 2.
For example by placing a 250 ohm resistor across pins 1 and 2, and setting the output
board to 4-20mA the voltage output will produce a voltage between 1 and 5 volts.
CURRENT OUTPUT
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