Emerson MRLDS-250 - Default Chapter; Table of Contents

MRLDS-250 Infrared Gas Detector I&O Manual Table of Contents • v
Contents
1 INTRODUCTION.............................................................................................................................. 1
1.1. OVERVIEW ........................................................................................................................................ 1
1.2. DETECTION OPTIONS ........................................................................................................................ 1
1.2.1. Broadband vs. Gas Specific...................................................................................................... 1
1.2.2. Broadband Gas Detection ........................................................................................................ 1
1.2.3. Detecting Specific Gases.......................................................................................................... 2
1.3. REMOTE CONTROLLER OPTIONS....................................................................................................... 3
1.4. PARTS LIST ....................................................................................................................................... 3
1.5. SPECIFICATIONS ................................................................................................................................ 4
2 MOUNTING THE GAS DETECTOR ............................................................................................. 5
2.1. WARNINGS AND PREREQUISITES ...................................................................................................... 5
2.2. MOUNTING LOCATIONS .................................................................................................................... 5
2.2.1. General Placement Guidelines................................................................................................. 5
2.2.2. Machinery Rooms..................................................................................................................... 5
2.2.3. Refrigerated Spaces.................................................................................................................. 6
2.2.4. Chillers ..................................................................................................................................... 6
2.3. MOUNTING PROCEDURE ................................................................................................................... 6
3 WIRING AND CONFIGURATION ................................................................................................ 8
3.1. OVERVIEW ........................................................................................................................................ 8
3.2. WIRING SUPPLY POWER (24VAC OR 24VDC) ................................................................................ 8
3.3. WIRING ALARM OUTPUT (ANALOG SIGNAL) ................................................................................... 9
3.4. WIRING THE DIGITAL ALARM OUTPUT RELAY ................................................................................ 9
3.5. MODBUS NETWORK CONFIGURATION ......................................................................................... 10
3.6. FINISH INSTALLATION..................................................................................................................... 11
4 OPERATION AND STABILIZATION ......................................................................................... 12
4.1. POWER UP AND WARMUP............................................................................................................... 12
4.2. STABILIZATION ............................................................................................................................... 12
4.3. PERFORM A MANUAL ZERO............................................................................................................ 12
4.4. ALARMS .......................................................................................................................................... 12
4.5. GAS DETECTOR FAULTS ................................................................................................................. 13
4.5.1. Overview................................................................................................................................. 13
4.5.2. Non-Critical Faults ................................................................................................................ 13
4.5.3. Critical Faults ........................................................................................................................ 13
5 CONFIGURE THE GAS DETECTOR ......................................................................................... 14
5.1. USER INTERFACE OVERVIEW.......................................................................................................... 14
5.2. SETTING PARAMETERS.................................................................................................................... 14
5.2.1. Overview................................................................................................................................. 14
5.2.2. Configuration Parameters...................................................................................................... 14