KANE905 Operators Manual
Page 42
INLET:
(Ti)
Temperature measured by the optional inlet air probe.
This probe is plugged into the instrument through the
RS232 socket. This figure is used to calculate the NET
temperature instead of AMBIENT when fitted.
AMBIENT:
(Ta)
Temperature measured by the internal sensor, used in the
NET temperature calculation if an INLET probe is not
fitted.
CO/CO2 R :
The CO/CO2 ratio, is the ratio of measured CO divided by
calculated CO2.
It gives an indication of the following :-
How good a gas sample the instrument is reading.
How clean the boiler is running.
For example:
A new or clean domestic boiler will display a ratio of less
than 0.0040, a unit in need of cleaning 0.0040-0.0080 and
a unit in need of major overhaul will show greater than
0.0080.
This only shows a reading when a combustion test is
being carried out. ‘- -’ is displayed while in clean ambient
air.
P INDEX:
(PI)
The CO/CO2 ratio expressed as a percentage %, called
the ‘Poison Index’ i.e. P INDEX % = 100 x CO/CO2. ‘- -’ is
displayed while in clean ambient air.
XAIR %:
(
)
Excess air calculated from the measured oxygen and type
of fuel used. During a combustion test ‘O2 > 20%’ will be
displayed while in clean ambient air.
FLOW:
Pitot Flow Rate in m/s when m/s selected in pressure units
Prs:
Flue draught pressure reading. Displayed when pressure
sensor fitted. See UNITS menu for scales.
NO:
Nitric Oxide reading in ppm or mg/m3. Displayed when
Nitric Oxide sensor fitted. Also displayed as
NO (n)
when
referenced to oxygen. The display will read ‘O2 > 20%’ if
referenced values selected and instrument is in clean
ambient air.
