1734-IR2 | Allen-Bradley POINT I/O 24V DC 2-Channel RTD Input Module

Description 

The 1734-IR2 is a Resistance Temperature Detector (RTD)input module that is part of Allen-Bradley’s POINT IO product family. This module features Two (2) single-ended, non-isolated input channels. Each channel supports 100 Pt α = 0.00385; 200 Pt α = 0.00385; 100 Pt α = 0.003916; 200 Pt α = 0.003916; 10 Cu α = 0.00427; 100 Ni α = 0.00618; 120 Ni α = 0.00618 and 120 Ni α = 0.00672 sensors. Aside from RTD sensor inputs, this module also supports direct wiring of 0-600 Ω analog signal. This module has a 16-bit resolution.

Technical Specifications 

Information About 1734-IR2

The Allen-Bradley 1734-IR2 is a POINT I/O Resistance Temperature Detector (RTD) and resistance input module. This module is ideally used for temperature applications or applications with installed transducers that provide resistance signal as feedback variable.

The 1734-IR@, being part of the POINT I/O family is a cost-effective, panel space saving module as it supports mounting to a standard 35mm DIN rail and occupies only 56 x 12 x 75.5 mm (2.21 x 0.47 x 2.97 in.). Additionally, it has an open style enclosure which means any enclosure suitable to the application area is equally usable to the 1734-IR2.

The 1734-IR2 mainly features Two (2) Resistance Temperature Detector (RTD) input channels. Each input channel is compatible for direct interfacing with RTD sensors such as 100 Pt α = 0.00385; 200 Pt α = 0.00385; 100 Pt α = 0.003916; 200 Pt α = 0.003916; 10 Cu α = 0.00427; 100 Ni α = 0.00618; 120 Ni α = 0.00618 and 120 Ni α = 0.00672 sensors and direct wiring of 0-600 Ω resistance signals. This module is a 16-nit resolution analog input module ideally used for temperature applications. It has requires use of 1734-TB, 1734-TBS, 1734-TOP, or 1734-TOPS wiring base assembly.

The 1734-IR2 has a built-in Delta Sigma analog to digital converter with resolution of 16 bits specifically, 9.5 mΩ/cnt 0.03 °C/cnt (Pt385 @ 25 °C) [0.05 °F/cnt (Pt385 @ 77 °F). Converted data is stored as a signed integer. It has an absolute accuracy of 0.1% Full Scale @ 25 °C (77 °F). This module is factory calibrated.

The 1734-IR2 measures 2.21 x 0.47 x. 2.97 inches, it weighs 0.036 kilograms or 0.08 pounds and it has an open-type enclosure. It can be mounted using a DIN rail and it is compatible with the 1734-TB, 1734-TBS, 1734-TOP, or the 1734-TOPS terminal base unit. The resolution of the module is 16 bits at 9.5 milliohms/cnt and 0.03 degrees Celsius/cnt. It also has a Delta Sigma conversion type and a signed integer data format. Operators can choose the module's temperature data format from four predefined scales: Celsius, Fahrenheit, Kelvin, and Rankine, and one custom scale (mV).

The 1734-IR2 module also has alarms that will alerts users to under-range, over-range, open-wire, and low or high-level conditions. There is no maximum overload input protection for the 1734-IR2 and no external DC power is required to run it. The 1734-IR2’s inputs are 15 mA 0 to 10 Volts, and +/-10 Volts, while its nominal input is 24 Volts DC. It has an input range of 0 to 600 ohms and a maximum POINTbus current of 220 mA at 5 Volts DC. The maximum power dissipation of the module is 1 Watts and the maximum thermal dissipation is 3.3 BTU/hour. It also has a non-condensing relative humidity of 5 to 95%, an operating temperature range of -20 to 55 degrees Celsius, and a storage temperature range of -40 to 85 degrees Celsius. The 1734-IR2’s operating shock rating is 30 g, its non-operating shock rating is 50 g, and its operating vibration is 5 g at 10 to 500 Hertz. The 1734-IR2 also has a continuous isolation voltage of 50 Volts from I/O to the system.

Manufacturer information

Allen‑Bradley components, integrated control and information solutions are built for demanding industrial applications. We integrate control and information across the enterprise to make you as productive as possible.

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