Spectrex Quasar 900 Open-Path Gas Detection System - Manual (Page 8)

SafEye TM Quasar 900 Gas Detector
viii Table of Contents
3 Operating Modes...................................................................................... 13
3.1 Operational Modes ................................................................................ 13
3.1.1 Normal Mode .................................................................................. 13
3.1.2 Maintenance Call Mode (3mA Output) ................................................ 13
3.1.3 Fault Mode ..................................................................................... 14
3.1.4 Zero Calibration Mode (1mA Output) ................................................. 14
3.2 Visual Indicators ................................................................................... 15
3.3 Output Signals ...................................................................................... 15
3.3.1 0-20mA Current Output ................................................................... 15
3.3.2 RS-485 Interface ............................................................................ 16
3.4 System Setup ....................................................................................... 16
3.4.1 Detection Function Programming ...................................................... 16
3.4.2 Detection Setup Function ................................................................. 17
3.4.3 Detector Default Setup .................................................................... 18
4 Technical Specifications ........................................................................... 19
4.1 General Specifications ........................................................................... 19
4.2 Electrical Specifications .......................................................................... 20
4.2.1 Power Consumption ........................................................................ 20
4.2.2 Electrical input protection ................................................................ 20
4.2.3 Electrical outputs ............................................................................ 20
4.3 Mechanical Specifications ....................................................................... 21
4.4 Environmental Specifications .................................................................. 22
4.4.1 High Temperature ........................................................................... 22
4.4.2 Low Temperature ............................................................................ 22
4.4.3 Humidity ........................................................................................ 22
4.4.4 Salt and Fog ................................................................................... 22
4.4.5 Water and Dust .............................................................................. 22
4.4.6 Shock and Vibration ........................................................................ 22
4.4.7 Electromagnetic Compatibility (EMC) ................................................. 23
5 Installation Instructions .......................................................................... 25
5.1 Introduction ......................................................................................... 25
5.2 General Considerations .......................................................................... 25
5.2.1 Personnel ....................................................................................... 25
5.2.2 Tools Required................................................................................ 25
5.2.3 Site Requirements .......................................................................... 26