UEi Test Instruments KM9106/P - Manual (Page 28)

KM9106 Operators Manual 28
6.6 Oxygen Calibration
If used over long periods the Oxygen sensor may drift slightly and for maximum
accuracy may require resetting.
TO RESET OXYGEN SENSOR
With the flue probe sampling fresh air and the flue temperature reading less than
50
°C/122°F, or the temperature plug disconnected from the instrument.
Press the
-- -- -- -- -- -- -- -- -- -- -- -- --
SET
-- -- -- -- -- -- -- -- -- -- -- -- --
Pressing the key displays
Change to YES
SET O2 = 20.9%
NO
Press to set 20.9% Oxygen.
NATURAL GAS
PRESS ENTER KEY
6.7 Toxic sensor zero
The CO and other optional toxic sensors can be reset to zero if they drift. This may
happen if the sensor is taken to very high concentrations for long periods of time or
over-ranged.
Press twice
-- -- -- -- -- -- -- -- -- -- -- -- --
SET
-- -- -- -- -- -- -- -- -- -- -- -- --
ENTER SERVICE CODE
-- -- -- -- > 0 0 0 0 < -- -- -- --
Press four times
CALIBRATE SENSOR
NO
Parameter Controls Options
O2
SET/CAL
SET/CAL
ENTER
ENTER