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43
BAT :
Displays the Battery power available.
Replace alkaline batteries if reading is less than 10
Recharge NiMH batteries if reading is less than 20
Readings may be affected if used with low power batteries.
DATE :
Date shown as day, month and year, DD/MM/YY. Date is recorded
when each combustion test is printed or stored.
TIME :
The time shown is expressed in “Military” time HH:MM:SS. Time is
recorded when each test is printed or stored.
Note! When changing the batteries on the instrument the memory
will store the date and time for up to one minute, if outside this
time it may be necessary to re-enter the details.
Date and time may also need to be reset if re-chargeable batteries
are allowed to totally discharge.
FULL :
The maximum number of tests have been stored in the memory. To
delete the stored memory, Select Reports then select the tests to be
deleted (see Page 23).
SYMBOLS
used on the display
P Pressure
R CO/CO
2
λ
Excess
Air
Loss %: 100% minus loss % = efficiency %
TF
Flue
temperature
TI Inlet
temperature
∆
T
Nett
temperature
EfG
Gross efficiency
EfN
Nett
efficiency
EfC
Condensing
efficiency
- PO -
Pump off
‘- - - -’
Calculated oxygen greater than 18% so calculation is disabled
-OC-
Open circuit temperature input
CAL
Number of days left before recalibration is due
