Specifications

4
CONTENTS
I. INTRODUCTION............................................................................................................................5
1. General Information .....................................................................................................................5
2. Composition .................................................................................................................................5
II. INSTALLATION AND CONNECTIONS........................................................................................5
1. INSTALLING THE DETECTORS................................................................................................5
1.1 Layout...................................................................................................................................5
1.2 Mechanical installation...........................................................................................................6
2. ELECTRICAL CONNECTIONS...................................................................................................7
2.1. Wiring specifications..............................................................................................................7
2.2. Cable glands and cable types..................................................................................................7
2.3. Connections for the various types of sensors.............................................................................7
2.4. Operating mode....................................................................................................................10
III. POWERING UP AND USE..........................................................................................................11
1 Powering up................................................................................................................................11
2. 4-20 mA analog output................................................................................................................12
IV. MAINTENANCE..........................................................................................................................12
1. Calibration .................................................................................................................................13
1.1. Recommendations.................................................................................................................13
1.2. CEX 300 calibration.............................................................................................................14
1.3. CTX 300 calibration .............................................................................................................15
1.4. COX 300 Calibration, “OXYGEN” type.................................................................................17
1.5. CSC 300 (semiconductor) calibration ....................................................................................18
1.6. CTX300 CO
2
calibration.......................................................................................................19
1.7. CTX300 CO2 Linearization card...........................................................................................20
2. Replacing a sensor.......................................................................................................................26
3. Disposal......................................................................................................................................26
4. Replacement Parts List ................................................................................................................26
4.1. CEX 300-type Combustible Sensor.........................................................................................26
4.2 CTX/COX 300 Toxic or Oxygen Sensor..................................................................................28
4.3 CSC300 Semiconductor Sensor..............................................................................................30
4.4 CTX300 CO2 Sensor.............................................................................................................30
V. PARTICULAR SPECIFICATIONS FOR USE IN EXPLOSIVE ATMOSPHERES IN
ACCORDANCE WITH THE EUROPEAN ATEX 94/9/CE DIRECTIVE............................................31
1. SPECIFICATIONS FOR MECHANICAL AND ELECTRICAL INSTALLATIONS IN
EXPLOSIVE ZONES..........................................................................................................................31
2. PERFORMANCE SPECIFICATIONS FOR THE CEX 300 EXPLOSIVE GAS DETECTOR....31
2.1. Technical Specifications and Particular Instructions for the CEX300 Explosive Gas Detector...32
3 MARKINGS:................................................................................................................................34
VI CERTIFICATIONS.......................................................................................................................35
ANNEX 1 ............................................................................................................................................39
ANNEX 2 ............................................................................................................................................41
ANNEX 3 ............................................................................................................................................42