1. Air Quality Monitor for NO2 1
2. Principles of Operation 3
2.1. Air Quality Monitor (AQM) ............................................................................................................................3
2.1.1. NO2 Measurement................................................................................................................................3
3. Specifications 6
3.1. General...................................................................................................................................................6
3.2. Air Quality Monitor –NO2.......................................................................................................................6
3.3. Tunnel Display Unit (TDU) .....................................................................................................................6
3.4. Power Supply Unit (PSU).......................................................................................................................6
4. Basic Equipment Supply 7
4.1. Standard Supplied Items..............................................................................................................................7
4.2. Customer Supplied Items.............................................................................................................................7
5. Installation 8
5.1. Check the Equipment...................................................................................................................................8
5.1.1. NO2 Air Quality Monitor........................................................................................................................8
5.1.2. Power Supply Unit (PSU)......................................................................................................................8
5.1.3. Tunnel Display Unit (TDU)....................................................................................................................9
5.2. Connections..........................................................................................................................................10
5.2.1. Connection schedule, (for AQM & TDU up to 100m apart).........................................................10
5.2.2. Connection Schedule J-Box configuration 1, (for AQM & TDU up to 1km apart)........................11
5.2.3. Connection Schedule J-Box configuration 2, (for AQM & TDU up to 200m apart) .....................12
6. TDU Operation 13
6.1. Introduction.................................................................................................................................................14
6.1.1. Measurement ......................................................................................................................................14
6.1.2. Calibration...........................................................................................................................................14
6.2. Normal Start-Up Procedure........................................................................................................................14
6.3. Modes of Operation....................................................................................................................................14
6.4. Key Operation.............................................................................................................................................15
6.5. Program Tree .............................................................................................................................................16
6.6. Operating Mode..........................................................................................................................................16
6.7. Parameter Mode (Mode 2) .........................................................................................................................17
6.7.1. Identification........................................................................................................................................17
6.7.2. Output..................................................................................................................................................17
6.7.3. Alarm...................................................................................................................................................17
6.7.4. Clock ...................................................................................................................................................17
6.7.5. Auto Cal...............................................................................................................................................17
6.8. Chamber.....................................................................................................................................................18
6.9. Diagnostic Mode (Mode 4) .........................................................................................................................18
6.9.1. Temperature........................................................................................................................................19
6.9.2. Y & Z Values .......................................................................................................................................19
6.9.3. NO2 Values.........................................................................................................................................19
6.9.4. Calibration Data ..................................................................................................................................19
