3.3 CEMS Data Screens .............................................................................................................. 29
3.4 CEMS Energy Audits ............................................................................................................ 33
3.5 Trim Settings .......................................................................................................................... 35
3.5.1 Commissioning Procedure............................................................................................. 36
3.6 Mk8 EGA Trim ...................................................................................................................... 37
3.6.1 Trim Operation ............................................................................................................. 37
3.6.2 Trim Timing Operation .................................................................................................. 40
3.6.3 Trim Correction Calculation .......................................................................................... 41
Example ........................................................................................................................................ 41
3.6.4 Channel 5 Trim ............................................................................................................. 43
3.6.5 Combustion Efficiency Calculations .............................................................................. 43
3.7 Combustion Limits ................................................................................................................. 44
3.7.1 Overview of Combustion Limits ..................................................................................... 44
3.7.2 Standard Limits ............................................................................................................. 44
3.7.3 Absolute Limits .............................................................................................................. 44
3.7.4 Combustion Limits Control Functions ............................................................................. 44
3.7.5 O
2 Limits Example ......................................................................................................... 45
3.7.6 NO Limits Example ....................................................................................................... 46
3.7.7 CO Limit Example ......................................................................................................... 47
3.7.8 Temperature Limits Example ......................................................................................... 48
4 DIMENSIONS AND EQUIPMENT ................................................................ 49
4.1 Mk8 EGA Dimensions ........................................................................................................... 49
4.2 Technical Specifications ........................................................................................................ 50
4.3 Sampling Probe .................................................................................................................... 51
4.3.1 Installation and Maintenance ....................................................................................... 51
4.3.2 Sampling Probe Assembly ............................................................................................ 52
4.3.3 Sampling Probe Internal Filter ...................................................................................... 53
4.3.4 Sampling Probe Maintenance ...................................................................................... 54
4.3.5 Servicing EGA Sampling Probe .................................................................................... 54
4.4 Ancillary Equipment .............................................................................................................. 55
4.4.1 External Particulate Filter .............................................................................................. 55
4.4.2 Air Inlet Filter ................................................................................................................ 56
4.4.3 Chilled Environmental Enclosure ................................................................................... 57
4.4.4 Pre-Heat Air Sensor ...................................................................................................... 58
5 ERROR CHECKING AND SELF-DIAGNOSTICS .............................................. 59
5.1 EGA Faults ............................................................................................................................ 59