Spectrum Controls Micro800 2085-IR8-SC User Manual page 10

1-2 Chapter 1: Module Overview
User's Manual Pub. 0300321-01 Rev. A
The module provides up to eight, concurrent channels of 2-, 3-, or 4-wire RTD
and resistance measurements. It provides RTD types Pt 385, Pt 3916, Cu 426, Ni
618, Ni 672, Ni-Fe 518, and direct ohm (0-150, 0-500, 0-1000, 0-3000)
measurements.
The module provides:
•
8 input channels of RTD and resistance measurements.
•
Four data formats.
•
Range scaling of input data.
•
Four filter frequencies.
•
Units in Degrees Centigrade and Fahrenheit.
•
Channel bias adjustment.
•
Alarm notification on each channel status:
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Over or under range detection (from user-defined values).
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Process alarm and latching.
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Open wire detection.
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ADC communication fault.
All inputs have fault tolerance and ESD protection to avoid damage to circuitry
on the board. The modules use 50 VAC working Reinforced Insulation between
the inputs and the backplane.
The 2085-IR8-SC module uses a 20-bit Sigma-Delta analog-to-digital converter
to achieve 16-bit resolution.
Each input channel is individually configurable via Rockwell-provided
Connected Component Workbench (CCW) software for the Micro850 and
Micro870 family controllers or with the Module Configuration Converter (MCC)
utility from Spectrum Controls, Inc.
The module is factory calibrated and tested before shipping. After installation,
the modules begin operation in a default, usable condition without user
parameters first being set up or defined. During power startup, all inputs are
disabled and off until a valid configuration has been received. The default
configuration is for all channels enabled in the 3-wire, 100PT385 range with the
17 Hz filter in Engineering ×1 units.