The Allen-Bradley 1797-IE8 is a high-performance Flex Ex analog input module featuring eight non-isolated channels, delivering precise measurement with a resolution of 16-bits and supporting 0-20 mA and 4-20 mA signal ranges. Notably, this module is engineered for intrinsically safe applications, boasting Ex ia and Ex ib safety ratings suitable for hazardous environments classified under Class I, II, III Division 1 Groups A-G. With a notable accuracy of 0.1% at 20 °C, this module supports internal diagnostics for robust performance, detecting issues such as lead breakage and signal range alarms, and requires specific terminal bases like the 1797-TB3 or 1797-TB3S for optimal operation.
Technical specifications for 1797-IE8
Manufacturer
Rockwell Automation
Functional Data Range
>15V @ 22 mA >21.5V @ 0 mA
Data Format
Configurable
Resolution
16 bits
Brand
Allen-Bradley
Product Description:
Flex Ex analog input Module
No. of inputs:
Eight (8) non-isolated inputs
IS input type
Ex ia IIB/IIC T4, AEx ia IIC T4, Class I, II, III Division 1 Group A-G T4
IS module type:
Ex ib IIB/IIC T4, AEx ib IIC T4, Class I, Division 1 Group A-D T4
Indicators:
8 red fault indicators 1 green power indicator
Terminal Base:
1797-TB3 or 1797-TB3S
Conductor wire size:
4 mm2 (12 gauge) stranded; max 1.2 mm (3/64 in.) insulation max
