Allen-Bradley 825-PR12D Manual page 12

12 825-PR12D Guideform Specifications
825-PR12D Guideform Specifications
RTD (Resistance Temperature Detector) monitoring shall be provided by a
microprocessor-based scanner with the following characteristics:
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825-PR12D RTD Scanner
Scanner shall be capable of acquiring RTD data from as many as
12 RTDs.
Scanner shall accept input from any of four different types of
three-wire RTDs (100-ohm platinum, 100-ohm nickel, 120-ohm
nickel, and 10-ohm copper) on every RTD input terminal.
Scanner shall require no configuration settings.
Scanner shall perform internal self-tests on the power supply and
RTD inputs.
Scanner shall transmit over fiber optics all measured RTD values and
self-test status at less than 750 ms intervals over a distance of as far as
500 meters.
Scanner shall secure data communications using CRC-16 (Cyclical
Redundancy Check) error detection.
Scanner shall be equipped with a fiber-optic port.
Scanner shall use LEDs (Light Emitting Diodes) to indicate device
self-test status and fiber port transmit status.
Scanner shall be capable of operating within specification over a
temperature range of – 40° to +85°C.
Scanner shall be line powered by 120 Vac or 240 Vac.
Scanner shall mount to a flat surface and have package dimensions
not exceeding 241.3 mm (9.50 inches) x 112.3 mm (4.42 inches) x
52.3 mm (2.06 inches).
Date Code 20080722