UEi Test Instruments SMART BELL PLUS KIT - Manual (Page 13)

S
elector aNd
d
iSplay
p
arameterS
o
N
ue
i
S
mart
B
ell
pluS
“ZeRO” – Analyzer is performing the initial zero setting
CO (Carbon Monoxide) – Direct reading of the carbon dioxide sensor displayed
in parts per million (ppm)
CO2 (Carbon Dioxide) – Direct reading of the carbon monoxide sensor displayed
in percentage (%)
O2 (Oxygen) – O2 is calculated for each fuel type from the CO2 measurement. It
assumes that the combustion process is running fuel lean. It is important to make other
measurements to confirm that this assumption is always correct.
X-Air (Excess Air) – Excess Air is calculated for each fuel type from the CO2 measure-
ment. It assumes that the combustion process is running fuel lean. It is important to
make other measurements to confirm that this assumption is always correct.
TFlue (Flue Temperature) – TFlue is a direct measurement of the temperature at the tip
of the flue probe. This measurement is used to determine the net temperature for use in
calculation of combustion efficiency.
Eff (Efficiciency) – Calculated combustion (not appliance) efficiency based on measurements
of CO2, Flue Temperature and fuel selected. The SmartBell calculates gross combustion
efficiency and automatically determines if the combustion is in the condensing mode to make
appropriate corrections.
BAT symbol - Displays the Battery power available.
HIGH Displays at standby/power off if CO levels are greater than 20ppm.
NOTE: If turning unit off countdown will resume once CO levels are lesser
than 20ppm.
Fuels Available
GLOSSARY
11
Selector Position Display Type
L Oil LOIL Light Oil
Propane PrOP Propane
Nat Gas n6AS Natural Gas
H Oil HOIL Heavy Oil
Wood vOOd Wood