Micromod MOD: Modcell 2050R Users Guide - Manual (Page 22)

IB-23C650
INSTALLATION
Figure 5. 2- Wire Milliampere Input Connections
External Power
Supply
MILLIAMPERE INPUT - 2-WIRE TRANSMITTER
Shield to be left un-
connected at this end.
2-Wire
Transmitter
– + G
External Transmitter
Power Supply (50 mA
max. loop current)
– +
Internal Transmitter Pow-
er Supply (22 mA Max.
Loop Current)
2-Wire
Transmitter
– + G
Milliamp input specifications are:
Input Range: 0 to 54 mA dc, Limited to below 70 mA
Input Span: Operator settable from 1mA to 50 mA
Input Impedance: 50 ohms nominal
Resolution: 2.5 microamps maximum, 0.016% of a typical milliamp span
Accuracy: ±0.1% of input
Temperature Effect: 0.01% per degree C.
Sample Time: 0.25 seconds
Transmitter Power Supply: Isolated 24V dc, 20 mA transmitter power
supply. For current inputs above 20 mA, a separate power supply must be
used.
Linearizations:Square law
16