Emerson MRLDS-250 - Default Chapter; Table of Contents

Table of Contents • i
TABLE OF CONTENTS
1 INTRODUCTION.......................................................................................................................................................... 1
1.1. O
VERVIEW .................................................................................................................................................................... 1
1.2. D
ETECTION 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. R
EMOTE CONTROLLER OPTIONS .................................................................................................................................. 3
1.4. P
ARTS LIST ................................................................................................................................................................... 3
1.5. S
PECIFICATIONS ............................................................................................................................................................ 3
2 MOUNTING THE GAS DETECTOR......................................................................................................................... 4
2.1. W
ARNINGS AND PREREQUISITES .................................................................................................................................. 4
2.2. M
OUNTING LOCATIONS ................................................................................................................................................ 4
2.2.1. General Placement Guidelines ............................................................................................................................. 4
2.2.2. Machinery Rooms ................................................................................................................................................. 4
2.2.3. Refrigerated Spaces .............................................................................................................................................. 5
2.2.4. Chillers.................................................................................................................................................................. 5
2.3. M
OUNTING PROCEDURE ............................................................................................................................................... 5
3 WIRING AND CONFIGURATION ............................................................................................................................ 7
3.1. O
VERVIEW .................................................................................................................................................................... 7
3.2. W
IRING SUPPLY POWER (24VAC OR 24VDC) ............................................................................................................ 7
3.3. W
IRING ALARM OUTPUT (ANALOG SIGNAL)............................................................................................................... 8
3.4. W
IRING THE DIGITAL ALARM OUTPUT RELAY............................................................................................................ 8
3.5. F
INISH INSTALLATION .................................................................................................................................................. 9
4 OPERATION AND STABILIZATION..................................................................................................................... 10
4.1. P
OWER UP AND WARM UP......................................................................................................................................... 10
4.2. S
TABILIZATION ........................................................................................................................................................... 10
4.3. P
ERFORM A MANUAL ZERO ....................................................................................................................................... 10
4.4. A
LARMS...................................................................................................................................................................... 10
4.5. G
AS DETECTOR FAULTS ............................................................................................................................................. 10
4.5.1. Overview ............................................................................................................................................................. 10
4.5.2. Non-Critical Faults............................................................................................................................................. 11
4.5.3. Critical Faults..................................................................................................................................................... 11
5 CONFIGURE THE GAS DETECTOR ..................................................................................................................... 12
5.1. U
SER INTERFACE OVERVIEW ..................................................................................................................................... 12
5.2. S
ETTING PARAMETERS ............................................................................................................................................... 12
5.2.1. Overview ............................................................................................................................................................. 12
5.2.2. Configuration Parameters .................................................................................................................................. 12
5.3. C
OMPLETING SETUP ................................................................................................................................................... 15
6 FUNCTIONAL TESTS AND ADJUSTMENTS....................................................................................................... 16
6.1. I
NTRODUCTION ........................................................................................................................................................... 16
6.2. B
UMP TESTING VS. ADJUSTING DETECTOR RESPONSE .............................................................................................. 16
6.3. B
UMP TESTING ........................................................................................................................................................... 17
6.4. A
DJUSTMENT USING CALIBRATION GAS.................................................................................................................... 18
7 TROUBLESHOOTING .............................................................................................................................................. 19