INTRODUCTION
FEATURES
I-E96-301B
1 - 3
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Each channel is individually programmable for these input
types:
E, J, K, L, N (14 AWG), N (28 AWG), R, S, T, U thermocouples.
Chinese type E and Chinese type S thermocouples.
Millivolt (-100 to +100 mV).
3-wire RTDs (10, 100 U.S., 100 European, 120 and Chinese
53 Ohm).
High level (-10 to +10 V).
Current (4-20 mA).
•
Resolution of the analog-to-digital conversion process is
programmable over a range from 16 to 24 bits.
•
Input type and channel resolution may be selected inde-
pendently for each channel, permitting any mix of inputs
on a single IMASI03 module.
•
Channel isolation and open input detection are provided
for each channel.
•
Input circuit offset, gain and nonlinearity errors are
recorded during a one time factory calibration procedure.
These measurements provide error compensation during
normal operation. The slave does automatic recalibration
during normal operation to compensate for component
aging and temperature drift. No user calibration is ever
required.
•
Engineering units conversion to degrees C or F is automat-
ically calculated on all input signals that are thermocouple
or RTD types. These conversions correct for nonlinearities
in the conversion to temperature units using industry
standard linearization tables.
•
The slave scales the block output value to engineering
units for low and high level voltage inputs. Input type and
zero and span values are specified in function code 216.
•
Thermocouple inputs have cold junction compensation.
Each termination device has a built-in cold junction refer-
ence. The cold junction reference applied to thermocouple
inputs may be this built-in reference or it may be a remote
reference read from another input from this or another
slave.
•
The slave compensates for lead wire resistance in the con-
nection between the thermocouple, RTD or low level voltage
input signals.
•
The IMASI03 can be removed or installed without turning
off power to the system.
