Micromod RetroPAK: SLC Installation Manual - Manual (Page 55)

SLC RetroPAK Controller
POWER, GROUNDING, AND BUILT-IN I/O CONNECTIONS
31
3.5.4 Built-In Current Input - Non 2-Wire Transmitter
Make current input connections from a non 2-wire transmitter as shown in Figure 3-6. Note
that the transmitter must be powered from an external source which meets the transmitter
power specifications.
Shield to be left
unconnected at this end.
Non 2-Wire
Transmitter
- + G
Power
Note:
Non 2-Wire transmitter
may also be ungrounded.
to instrument
ground
Figure 3-6. Built-in Non 2-Wire Current Input Connections
Current input specifications are:
Input Range: 0 to 54 mA dc, Limited to below 70 mA
Input Impedance: 100 ohms nominal
Resolution: less than 1 microamp
Accuracy: ±0.1% of input or 2 microamps, whichever is greater
Temperature Effect: 0.01% per °C or 0.2 microamps per °C, whichever is greater