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Page 2     Technical Status: 11/2010

Gas Detector

Operating and Installation Instructions

ExDetector HC 150 / HC 150-K

Prerequisites for safe operation of the system:

Appropriate transport and handling

Appropriate installation and commissioning by suitably qualified personnel
(e.g. a qualified electrician)

Observance of the data sheet, the operating instructions and relevant
safety regulations, e.g.:

-

Explosion Protection Regulation (ExVo)

-

Explosion Protection Rules (BGR 104)

-

BGV B 6 Gases

Use only in areas where there is a potenial explosion hazard and an
oxygen concentration of not more than 20.9 vol. %

Important Instructions

Avoid external influences such as waves of water, oil etc., and exposure to
causes of mechanical damage.

Observe the air flow situation! Always place the sensor head in an air flow
between a potential release or collection point and a possible ignition
source.

Consider the density of the gas! For gases with a lower density than air, for
example methane, the detector must be located above a possible leakage
point, or at the highest point at which the gas can collect. When monitoring
gases and vapours that have a higher density than air, the detector must,
accordingly, be positioned at the lowest point, or near a potential leakage
point.

Install the detector in a location where there is low vibration, and where the
temperature is as stable as possible.

Ensure that there is adequate space for maintenance of the detector.

Installation

Follow the prescribed specifications for cables and connections. It is important
that the cable does not pass close to a source of electromagnetic interference.
Compliance with the limits specified in standards relevant for the CE-symbol is
only assured with proper use and electromagnetically-compatible installation
of the system.

Installation Notes

74 mm

74 mm

ExDetector HC 150

10 cm Wartungsfreiheit

Summary of Contents for ExDetector HC 150

Page 1: ...Gas Detection and Warning Systems Operating and Installation Instructions ExDetector HC 150 ExDetector HC 150 K...

Page 2: ...collection point and a possible ignition source Consider the density of the gas For gases with a lower density than air for example methane the detector must be located above a possible leakage point...

Page 3: ...sing in the presence of an explosive atmosphere Terminal Assignment Max outside diameter of cable 10 mm Three core cable with screen Terminal assignment 24VDC 4 20 mA GND 0 4 2V Br N V Br 4 5 6 1 2 3...

Page 4: ...on hazard Ex RL Rules for avoiding dangers from a potentially explosive atmosphere with a collection of examples Explosion Protection Rules Example Connection to GMC8022 Screening The screen is to be...

Page 5: ...or the voltage reading to stabilise Adjust the Br potentiometer until the voltmeter reads 0 mV Setting the base current to 4 mA Connect the voltmeter at the 0 4 2V socket Wait for the 0 4 2V voltage s...

Page 6: ...ing sensor Procedure Switch off the power supply to the detector Remove the housing cover Disconnect the leads from terminals 4 5 and 6 Undo the locknut Unscrew the sensor Screw the replacement sensor...

Page 7: ...ust be observed Further relevant standards DIN EN 60079 14 Electrical apparatus for explosive gas atmospheres Electrical installations design selection and erection DIN EN 60079 17 Electrical apparatu...

Page 8: ...ctor HC 150 HC 150 K Bieler Lang GmbH Gas Detection and Warning Systems PO Box 1129 D 77842 Achern Oberkirchstr 19 21 D 77855 Achern Telephone 49 0 78 41 69 37 0 Telefax 49 0 78 41 69 37 99 E mail inf...

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