Model M1433B 6 RTD ISO0 pages

MAXIFLEX 6RTD Module
Model M1433B Individually Isolated 6 way RTD Input Module.

DATASHEET
FEATURES
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Fits in any MAXIFLEX base I/O slot

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6 individually Isolated 2 or 3 wire Resistance Bulb Inputs

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High isolation voltage rating for industrial applications

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Intelligent Module provides direct conversion to
Temperature.

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Four alarm set-points per input

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Rate of Change Alarm or Setpoint Alarms

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Removable Terminal Blocks

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Hot Plug-in

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In system automatic module detection

The M1433B 6RTD module provides 6 resistance
temperature detector inputs. The inputs are individually
galvanically isolated. This intelligent module is software
configurable, and allows each input to be configured for
a different input type and range.
The module will convert the RTD resistance reading
directly into degrees C or F to a resolution of 0.1
degrees.
Each input has four software settable alarm/trip
setpoints and a deadband value. The status of the
alarm/trip signals is available as derived digital inputs
from the module.
In addition, Rate of Change (ROC) alarms per input are
supported.

High inter-channel galvanic isolation allows inputs to be
connected to high common mode voltage sources
without detrimental effect.
With the aid of an accurate DC millivolt source and the
M1432A calibration software, the module can be field
calibrated by the user if required.
The module may be inserted into any I/O slot in a
Maxiflex system.
Inputs are terminated on plug-in screw terminals.
The module can be inserted or removed while the
system is powered.
Auto-detection capability allows the CPU to recognise
the presence of this module in the system.

SPECIFICATIONS
Inputs
Quantity

Type

Isolation
6 isolated inputs
Individually configurable for type of
resistance temperature detector.
Each channel may be individually
selected from the following types:
Pt100: –200°C to 850°C
Ni120: –80°C to 320°C

Resolution

0.1°C/°F

Output Reading

Direct temperature in °C or °F
(software configurable)

Amplifier Drift

100ppm/°C typical

Linearisation Technique

Software breakpoint with linear
interpolation

Accuracy

0.5°C typical 1.0°C maximum

1500Vac rms

Input to Input

500Vac rms

Insulation Resistance
Input to system logic

>20Mohms at 500Vdc

Interference Rejection
CMRR @ 50Hz

No effect up to 400Vac rms

NMRR @ 50Hz

50dB

LED Indication
CPU OK

ON = operating correctly
Flashing = Module failure
OFF = No Power or module failure

Output Termination
Types

Response Time
Step Input 10% to 90%

Inputs to System Logic

Reading settles to within 3% in
200ms maximum on all inputs.

Screw clamp Plug-in Terminal
Blocks and 20 way ribbon header

Screw Terminal Wire Size

2.0mm2 maximum
For manageable wiring to the

Copyright Omniflex ♦ Subject to change without notice

Datasheet DSM1433BR03 sheet 1 of 2

http://www.omniflex.com

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