Configuring Inputs
WBPEEUI240774A0 A - 5
NOTES: Compatibility Considerations
1. Installations using IMASI13 modules may have jumpers added between
the minus (-) and the C terminals on the Termination Units for the thermocouple
inputs. When replacing these IMASI13 modules with the IMASI23, the jumpers
on the Termination Units do not have to be removed if using the inputs for ther-
mocouples, millivolt, volt or milli-amp inputs.
2. If there are jumpers added between the minus (-) and the C terminals on
the Termination Units, they must be removed if the inputs are to be configured
for RTD input.
External powered
4-20 mA
This jumper configuration connects the plus (+) input terminal to one end of a
precision resistor and the minus (-) input to the other end of the same preci-
sion resistor located on the NTAI06. An isolated 1 to 5 Volts is generated for
the IMASI23 to measure. No connection to the C terminal is necessary.
3-wire resistance This jumper configuration connects the plus (+) and minus (-) inputs and the
COM input directly to IMASI23 three-wire input. Channel to channel and chan-
nel to system signal isolation is maintained. The two common leads of the
RTD element should be connected across the plus (+) and common (C) termi-
nals, and the third lead should be connected to the minus (-) terminal.
Table A- 3. NTAI06 In put Ty pe Descriptions
(continued)
Input Type Input Description
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