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1794-IR8 Flex I/O

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Allen Bradley
$2,187.00
SKU:
1794-IR8 Automation Webstore Certified
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 Product Description

Input Module, 8 Point RTD 1794 FLEX I/O

 Warranty Information

All Surplus and Refurbished products come with a 1-Year Automation Webstore Warranty.

 Product Overview

The 1794-IR8 is an electronic module that belongs to the Flex IO product family. This module is used to interface RTD instruments from the field to allow direct connection to this module. It has Eight (8) channels compatible for 2-wire and 3-Wire RTDs.

This module is intended for less critical applications. It features 16 bits resolution and compatible with RTD sensors such as 100 ? Pt ? = 0.00385 Euro (-200…+870 °C) 100 ? Pt ? = 0.003916 U.S. (-200…+630 °C) 200 ? Pt ? = 0.00385 Euro (-200…+630 °C) 500 ? Pt ? = 0.00385 U.S. (-200…+630 °C) 100 ? Nickel ? = 0.00618 (-60…+250 °C) 120 ? Nickel ? = 0.00672 (-60…+250 °C) 200 ? Nickel ? = 0.00618 (-60…+250 °C) 500 ? Nickel ? = 0.00618 (-60…+250 °C) 10 ? Copper ? = 0.00427 (-200…+260 °C).

This module has an accuracy of 0.01% Full Scale, using enhanced mode and 0.05% Full Scale, with normal mode both under low humidity.

This Flex IO RTD module exhibits an upscale reading if an open circuit is detected. This behavior must be considered as part of the system’s safe operating condition. Appropriate alarm for open circuit detection must be triggered and operational alarms such as High and Very High levels must be inhibited if an open circuit is detected. Most importantly, if a shutdown sequence will be triggered when Very High Temperature is reached, inhibition logic must be prepared with the Programable Logic Controller (PLC).

There are Three (3) terminals bases that can be used with this module. These are 1794-TB2, 1794-TB3 and 1794-TB3T. These terminal bases has internal connections that is compatible for different configurations of RTD such as 2, 3 and 4-wire RTDs.
VIIIVThe 1794-IR8 is a Flex IO Eight (8) channel RTD input module. This module is used for Temperature measurement and compatible for use with 2-wire or 3-wire RTDs.

 Product Specifications

Manufacturer: Rockwell Automation
Brand: Allen-Bradley
Product Description: Flex IO 8-Channel RTD Input Module
Part Number: 1794-IR8
Number of Inputs: 8
Signal Input Range: 1 to 433 ohms
Terminal base: 1794-TB2, 1794-TB3 and 1794-TB3T
Sensors supported: 100 ? Pt ? = 0.00385 Euro (-200…+870 °C) 100 ? Pt ? = 0.003916 U.S. (-200…+630 °C) 200 ? Pt ? = 0.00385 Euro (-200…+630 °C) 500 ? Pt ? = 0.00385 U.S. (-200…+630 °C) 100 ? Nickel ? = 0.00618 (-60…+250 °C) 120 ? Nickel ? = 0.00672 (-60…+250 °C) 200 ? N
Resolution: 16 bits across 435 ohms
Data Format: 16-bit 2's complement or offset binary (unipolar)
System Throughput: Normal Mode: Programmable from 28ms/channel to 325ms/channel 325ms (1 channel scanned) 2.6s (8 channels scanned) - default? Enhanced Mode: Programmable from 56ms/channel to 650ms/channel 650ms (1 channel scanned) - default 2.925s (8 channels scanned)
Mounting: DIN Rail
Wire Size: Determined by installed terminal base
Operating Temperature: 0 to 55 C (32 to 131 F)
Storage Temperature: –40…85 °C (–40…185 °F)
Vibration: 5g @ 10 to 500 Hz
Operating Shock: 30 g
leadTimeRefurbished: Tomorrow, April 15th
leadTimeNewSurplus: Tomorrow, April 15th
stockLevelCertified: 50
stockLevelSurplusNoBox: 1
stockLevelSurplusOpenBox: 11

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Rockwell Disclaimer: The product is used surplus. Automation Webstore is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because Automation Webstore is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, Automation Webstore makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Automation Webstore also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. Automation Webstore also makes no representations as to your right to install any such firmware on the product. Automation Webstore will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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