Introduction; Product Overview; Safety Information - Crowcon Xgard Bright Bedienungsanleitung

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English

2. INTRODUCTION

This manual contains essential health and safety requirements (EHSRs) and instruc-

tions for the safe installation and operation of the Xgard Bright range of gas detectors.

If more information is required then please refer to the full manual available from https://

www.crowcon.com.

Xgard Bright is a versatile gas detector for monitoring a wide range of flammable and

toxic gases and oxygen levels. Xgard Bright incorporates a bright OLED (organic light

emitting diode) display and a magnetic wand for easy menu operation.

Xgard Bright provides analogue 4-20mA and RS-485 Modbus signals as standard, with

optional HART interface. Relays are also fitted for activating local alarms or sending

digital signals to control systems.

Xgard Bright may be fitted with electrochemical type toxic or oxygen sensors, pellistor-

type flammable gas sensors or infrared (IR) hydrocarbon or carbon dioxide gas sensors.

Please refer to the product identification label to determine the type of sensor fitted.

Pellistor sensors are designed to detect flammable gases and vapours in concentrations

not exceeding the Lower Explosive Limit (LEL) of the target gas for which the detector

is calibrated.

Xgard Bright is ATEX and IECEx Ex db IIC T6 Gb flameproof certified for use in Zone

1 or 2 hazardous gas areas and Ex tb IIIC T80°C Db for use in Zone 21 or 22 hazard-

ous dust areas.

Safety information relevant to Ex requirements:

• WARNING – POTENTIAL ELECTROSTATIC CHARGING HAZARD. The painted

aluminium enclosure constitutes a potential electrostatic hazard and the equipment

must only be cleaned using a damp cloth.

• The cable gland must be installed before use and must comply with the requirements

of standards EN60019-0 and EN60079-1 with minimum IP66 ingress protection.

• Unused cable entries must be sealed using an ATEX/IECEx Exd certified stopping

plug with minimum IP66 ingress protection.

• Only cables of types specific in these instructions can be used.

• External earthing should be considered and installed according to these instructions

before use.

• WARNING – DO NOT OPEN WHEN AN EXPLOSIVE ATMOSPHERE IS PRESENT.

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