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APPENDICES
A – PARAMETER MEANINGS
The parameters and their meanings are detailed as follows : -
• DATE :
Analyzer date.
• TIME :
Analyzer time.
• MAIN BATTERY/
Displays the battery level from 0-100%. The analyzer will flash
HEATER BATTERY: RECHARGE BATTERY at less than 10 % of charge. The analyzer
may show levels greater than 100% when the charger is connected.
• ----- :
Displayed when a calculation cannot be performed because a probe is not
fitted or a parameter is out of range.
• FUEL :
The fuel used in calculation of efficiency and carbon dioxide.
• K1g:
Gross calorific fuel constant. See Appendix for calculation.
• K1n :
Gross calorific fuel constant. See Appendix for calculation.
• K2 :
Percentage Maximum theoretical CO2 (dry basis).
• K3:
Percentage wet loss.
• K4 :
Percentage unburnt carbon loss.
• O2r :
Toxic gas measurements can be referenced to defined oxygen levels.
Oxygen referencing is required by some regulations such as TALUFT. If a
reference value is selected the toxic gas measurements will be displayed with
the symbol n attached to the units. i.e. ppmn
What does oxygen reference mean?
If 3 % O2 reference is selected and 5 % O2 is measured in the flue then toxic
gas values will be recalculated as if 3 % were measured. The equation for
referencing is detailed in the Appendix. Oxygen referencing prevents false
readings being submitted, e.g. allowing more air into the boiler will increase
the oxygen level in the flue and hence dilute any toxic gas reading. Oxygen
referencing gives readings as if they were undiluted.
• NETT :
Nett temperature calculated by deducting the internal AMBIENT temperature
from the measured FLUE temperature. Displays in either Centigrade C or
Fahrenheit F and will display NOT FITTED if flue probe not connected.
If an external INLET probe is used then INLET is deducted from FLUE.
• O2 :
Oxygen reading in percentage %.
• CO :
Carbon monoxide reading indicated in ppm or mg/m3. If the figures
are referenced to oxygen then the display will show ppmn or mg/m3n. Note
with a high CO sensor fitted the reading will be displayed in percentage %.
EFF (G) : Combustion Efficiency calculation displayed in percentage. Gross (G)
or Net (N) can be set. The calculation is determined by fuel type see
Appendix for calculation. The efficiency is displayed during a combustion test,
00.0 is displayed while in fresh air.
• CO2:
Carbon dioxide reading in percentage % when measured, not calculated
• CO2c:
Carbon dioxide calculation determined by the type of fuel. This only shows a
reading when a combustion test is being carried out. Zero (0.0) is displayed
while in fresh air.
Summary of Contents for K9206
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