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INSTALLATION
Input Type
Single ended voltage This jumper configuration connects the minus (-) input terminal to I/O COM on the
NTAI06. The IMASI03 measures the voltage at the plus (+) input terminal with
respect to the I/O COM terminal. No connection to the C terminal is necessary.
Differential voltage
This jumper configuration connects the plus (+) and minus (-) inputs directly to
IMASI03 differential input. Channel to channel and channel to system common signal
isolation is achieved for all voltage input types, including high level voltage, millivolts
and thermocouples. No connection to the C terminal is necessary.
System powered
This jumper configuration connects the plus (+) input terminal to system +24 VDC
4 - 20 mA
through a fuse on the NTAI06. The minus (-) input terminal connects to a precision
resistor that generates a single ended voltage (1-5 V) for the IMASI03 to measure.
No connection to the C terminal is necessary. INFI 90 must have +24 V (system
power) installed.
External powered
This jumper configuration connects the plus (+) input terminal to one end of a
4 - 20 mA
precision resistor and the minus (-) input to the other end of the same precision
resistor in the NTAI06. An isolated 1-5 V is generated for the IMASI03 to measure.
No connection to the C terminal is necessary.
3-wire RTD
This jumper configuration connects the plus (+) and minus (-) inputs and the COM
input directly to IMASI03 three-wire input. Channel to channel and channel to system
signal isolation is maintained. The two common leads of the RTD element should be
connected across the plus (+) and common (C) terminals, and the third lead should
be connected to the minus (-) terminal.
Cable Connections
SETUP/INSTALLATION
2 - 6
Table 2-2. NTAI06 Input Types
Input Type
Thermocouple
TC Types: E, J, K, L, N, (14 AWG), N (28 AWG), R,
S, T, U, Chinese E, Chinese S
Millivolt
mV range: -100 mV to +100 mV
High Level
H.L. range: -10 V to + 10 V
Current
4 - 20 mA, external or system powered
3-wire RTD
10 ohm, 100 ohm, 120 ohm, Chinese 53 ohm
Table 2-3. NTAI06 Input Type Descriptions
The NTAI06 has two cable connectors, P1 and P2, where the TU
cable connects. Install a NKAS01 or NKAS11 cable into the
connector on the TU.
Signal Type
Input Description
®
I-E96-440A
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