Intended Use; Functional Description; General - Honeywell MSR PolyGard 2 MGC2-K User Manual

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User Manual - PolyGard 2
Multi-Gas-Controller MGC2-K Honeywell
Page
4

1 Intended Use

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The PolyGard 2 MGC2 is designed for detection and warning detection of toxic, combustible or dangerous
atmosphere in many commercial and industrial applications.
The intended sites are all areas being directly connected to the public low voltage supply, e.g. residential,
commercial and industrial ranges as well as small enterprises (according to EN50 082).
The PolyGard  2 Multi Gas Controller MGC2 must not be used in potentially explosive atmospheres. The
sensor must only be employed in areas within the environmental conditions specified in the Technical Data.

2 Functional Description

2.1

General

The Multi-Gas-Controller is designed for the connection of max. three analog sensors with 4-20 mA signal and
eight Honeywell sensors.
The controller monitors the measured values and activates the alarm relays if the set local alarm thresholds for
pre-alarm and main alert have been exceeded or if there are the alarm messages coming from the eight digital
sensors via RS-485 communication.
The SIL 2 compliant self-monitoring function in the MGC2 activates the fault message in case of an internal
error as well as in case of a fault at the 4-20 mA input / output current signals or if there is a communication
error to the digital sensors.
Other options such as three-color status LED, warning buzzer, digital input for acknowledgment or test function
ensure proper adaptation to the wide range of applications in gas detection technology.
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PolyGard is a registered trademark of MSR GAMGC2-K_E_0320
Phone 0049(0)8531/9004-0 Fax: 0049(0)8531/9004-54 Specification subject to change without notice
MSR-Electronic GmbH, Bgm.-Schoenbauer-Str. 13, D 94060 Pocking www:msr-electronic.de Made in Germany