ALLEN BRADLEY 1797-IE8 Input Module

Model/Part Number

1797-IE8

Description

Input Module (8-channel, Intrinsically Safe)

Number of Inputs

8 single-ended, non-isolated

IS Input Type

EEx ia IIB/IIC T4  AEx ia IIC T4  Class I, II, III Division 1 Groups A-G T4

IS Module Type

EEx ib IIB/IIC T4  AEx ib IIC T4  Class I Division 1 & 2 Groups A-D T4

Resolution

16 bits

Accuracy @ 20°C

0.1% of output signal range

Temperature Drift

0.005%/°C of output signal range

Functional Data Range

>15V @ 22mA  >21.5V @ 0mA

Data Format

Configurable

Step Response (to 99% FS)

4 ms

Update Time (Best/Worst)

50 µs / 1450 µs

Indicators

8 red fault indicators  1 green power

Output (IS)

Ui < 5.8V DC  Ii < 400mA  Ci < 1.35 µF  Li = Negligible

Isolation Type

Galvanic isolation to DIN EN50020 (except input-to-input: none)

Power Supply (IS)

Ui < 9.5V DC  Ii < 1A  Ci, Li = Negligible

Field-side Power Consumption

7.5 W

Power Dissipation

5.2 W

Thermal Dissipation

17.75 BTU/hr

Module Location

Cat. No. 1797-TB3 or 1797-TB3S

Conductor Wire Size

Max 12 AWG (4 mm²) stranded  Max insulation: 1.2 mm (3/64 in)

Dimensions (H x D x W)

94 x 75 x 46 mm (3.7 x 2.95 x 1.8 in)

Weight

Approx. 200 g

Keyswitch Position

3

Operating Temp.

-20 to +70 °C (-4 to +158 °F)

Storage Temp.

-40 to +85 °C (-40 to +185 °F)

Relative Humidity

5 to 95% non-condensing

Shock (Operating/Non)

15 g, 11 ±1 ms pulse width

Vibration

2 g @ 10–500 Hz (IEC68-2-6)

CENELEC

II (1) 2G EEx ia/ib IIB/IIC T4  II (1D)(2D)

UL/C-UL

Class I, Division 1 & 2, Groups A-D, T4  Class I, Zone 1 & 2, AEx ib/[ia] IIC T4

FM

Same as above