Hardware reference guide

Intrinsically Safe Modules
35013379 02 October 2007 447
Field Wiring Field wiring to the module consists of separate shielded, twisted pair wires. The
acceptable field wire gauge is AWG 20 to AWG 12. Wiring between the module and
the intrinsically safe field device should follow intrinsically safe wiring practices to
avoid the transfer of unsafe levels of energy to the hazardous area.
Fixed Wiring
System
The Quantum 140AII33010 Intrinsically Safe Current Input module is designed with
a fixed wiring system, where the field connections are made to a 40-pin, fixed
position, blue terminal strip which is plugged into the module.
Terminal Strip
Color and Keying
Assignment
The module’s 140XTS33200 field wiring terminal strip is color-coded blue to identify
it as an intrinsically safe connector.The terminal strip is keyed to prevent the wrong
connector from being applied to the module. The keying assignment is given below.
Channel to Bus 1780 Vac @ 47-63 Hz or 2500 Vdc for 1 min.
Update Time 750 ms for all channels
Fault Detection Broken wire (4 ... 20 mA mode)
Bus Current Required 1.5 A
Power Dissipation 7.5 W
External Power Not required
Hot Swap Not allowed per intrinsic safety standards
Fusing Internal-not user accessible
Programming Software Modsoft Ver. 2.61 or higher
Specifications
Module Class Module Part Number Module Coding Terminal Strip Coding
Intrinsically Safe 140AII33010 CEF ABD
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com