GASSONIC OBSERVER-i
iii
Table of Contents
GASSONIC OBSERVER-I ............................................................................................................ I
ULTRASONIC GAS LEAK DETECTOR ....................................................................................... I
1.0. INTRODUCTION ......................................................................................................... 7
2.0GENERAL DESCRIPTION AND FEATURES ........................................................................ 8
2.1. Artificial Neural Network (ANN) .................................................................................................. 8
2.2. Area Monitored by Gassonic Observer-i .................................................................................. 10
2.3. Detector Outputs ...................................................................................................................... 11
3.0INSTALLAT ION .................................................................................................................... 12
3.1. Mechanical Construction .......................................................................................................... 12
3.2. Mechanical Operation and Safety ............................................................................................ 13
3.2.1. Specific conditions of use......................................................................................................... 13
3.3. Mounting .................................................................................................................................. 14
3.4. Wiring Diagram ........................................................................................................................ 15
3.5. Protective Earth Grounding ...................................................................................................... 15
4.0OPERATION AND SETUP ................................................................................................... 17
4.1. Receipt of Equipment ............................................................................................................... 17
4.2. Normal Operation ..................................................................................................................... 17
4.3. Setup ........................................................................................................................................ 17
4.3.1. Detection Modes ...................................................................................................................... 17
4.3.2. SPL Alarm Trigger .................................................................................................................... 17
4.3.3. ANN Sensitivity Level ............................................................................................................... 17
4.3.4. Alarm Relay Energized / De-Energized ................................................................................... 18
4.3.5. Alarm Relay Latch / Non-Latched ............................................................................................ 18
4.3.6. Modbus .................................................................................................................................... 18
4.3.7. HART Enable ........................................................................................................................... 18
4.3.8. HazardWatch ........................................................................................................................... 18
4.3.9. Acoustic Self-Test .................................................................................................................... 19
4.3.10. Inputs........................................................................................................................................ 19
4.3.11. Output Methods ........................................................................................................................ 19
4.3.12. Relay Ratings ........................................................................................................................... 20
4.3.13. Alarm Relay Output .................................................................................................................. 20
4.3.14. 4-20 mA Output ........................................................................................................................ 20
4.4. Switching Modes ...................................................................................................................... 22
4.4.1. Error / Fault Output .................................................................................................................. 25
4.5. User Display & Magnet Interface ............................................................................................. 27
4.5.1. Setting / Checking Detection Mode and Analog Output Mode ................................................ 29
4.5.2. Forced Acoustic Test ............................................................................................................... 30
4.5.3. Setting / Checking Trigger Level (ANN Sensitivity Level) ........................................................ 31
4.5.4. Setting / Checking Cut-Off Frequency (Enhanced Mode only) ................................................ 32
4.5.5. Setting / Checking Delay Time ................................................................................................. 33
4.5.6. Setting / Checking Alarm Relay Energized / De-Energized ..................................................... 34
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