1. PRINCIPAL FEATURES
The 5704 Series Control System is part of the System 57 family and is
designedtomonitoreldmountedindustrialgasdetectors.Theprincipal
features of the system are:
* Provides up to 64 channels of gas detection in a standard 19'' sub-
rack using a 3U card format.
* Provides up to 32 channels of gas detection in a half 19'' sub-rack
using a 3U card format.
* Rackingavailableforbothfrontandrearaccesseldwiring.
* Simpleeldconnectionsforwireupto2.5mm
2
(14 AWG).
* Four channels per one inch wide card.
* Control cards removable without disturbing other wiring.
* Catalytic bridge or 4 - 20mA input control card versions.
* Alarm change-over relay output options.
* Optional time delayed operation of alarm relays.
* Multi-alarmmodeformaster,zonedandvotedalarms.
* Rising, falling, STEL, LTEL and update alarm outputs.
* Remote inhibit and reset inputs per card.
* Optional 0 - 20mA or 4 - 20mA isolated monitor outputs per
channel.
* Easy to calibrate and operate using a dedicated Engineering
Card.
* EMC compliant.
CHAPTER 1 - SYSTEM CONCEPT