
Contents
1. Introduction.............................................................................. 1
1.1 Product overview.............................................................. 1
1.2 Safety information............................................................ 1
1.3 Storage instructions.......................................................... 2
1.4 Product labels................................................................... 2
1.5 Product dimensions .......................................................... 3
1.6 Exploded view .................................................................. 4
2. Installation................................................................................ 5
2.1 Location ........................................................................... 5
2.2 Mounting......................................................................... 6
2.3 Internal Electrical Connections.......................................... 6
2.4 General Cabling Requirement .......................................... 7
2.5 Cabling Requirement 4 to 20 mA Current Loop ............... 7
2.6 Cabling Requirement Multidrop MODBUS ........................ 8
2.6.1 Calculating acceptable cable length and detector
quantities................................................................. 9
2.7 Earthing requirements .................................................... 12
2.8 Cable glands .................................................................. 12
2.9 Fitting accessories........................................................... 15
3. Operation ............................................................................... 16
3.1 Operation panel ............................................................. 16
3.2 Key Operation ................................................................ 16
3.3 Start up.......................................................................... 17
3.4 Menu functions.............................................................. 18
3.5 Zero ............................................................................... 19
3.6 Calibrate ....................................................................... 19
3.7 Routine maintenance ..................................................... 20
3.8 Sensor replacement........................................................ 20
3.9 IR Carbon Dioxide .......................................................... 21
3.10 PID ................................................................................. 22
3.11 Maintenance and cleaning of the PID sensor: ................. 22