10.8.1 General Settings ............................................................................................................................... 72 
10.8.2 Sample Time ..................................................................................................................................... 72 
10.8.3 Temperature Pre-Processing ............................................................................................................. 72 
10.8.4 Temperature Range........................................................................................................................... 74 
10.8.5 Emissivity Setting ............................................................................................................................ 74 
10.8.6 Ambient Background Temperature Compensation ........................................................................... 74 
10.8.7 Temperature Hold Functions ............................................................................................................ 74 
10.9 SENSOR CONTROL .................................................................................................................................... 75 
10.9.1 Current Output ................................................................................................................................ 75 
10.9.2 Relay Output .................................................................................................................................... 75 
10.9.3 External Input .................................................................................................................................. 76 
10.9.4 Lock Mode ......................................................................................................................................... 76 
10.10 RS485 COMMUNICATION ...................................................................................................................... 77 
10.11 MULTIDROP MODE................................................................................................................................. 77 
10.12 COMMAND LIST ..................................................................................................................................... 78 
11 MAINTENANCE .......................................................................................................................................... 81 
11.1 TROUBLESHOOTING MINOR PROBLEMS .................................................................................................. 81 
11.2 FAIL-SAFE OPERATION ............................................................................................................................ 82 
11.3 CLEANING THE LENS ............................................................................................................................... 83 
12 APPENDIX..................................................................................................................................................... 84 
12.1 DETERMINATION OF EMISSIVITY .............................................................................................................. 84 
12.2 TYPICAL EMISSIVITY VALUES ................................................................................................................... 84 
13 NOTICES ....................................................................................................................................................... 88