9
TIP:
Take care to purge the analyzer in really fresh air. Often the air in a garage or workshop is
contaminated with HC up to about 2 meters from the floor with the emissions from past spills of oil,
lubricants etc., that may have soaked into the floor.
Once the initialization is completed the analyzer will zero the CO, HC, CO2 and NO sensors if fitted and set
oxygen to 20.9%. Keep the analyzer and exhaust probe sampling fresh air.
The next screen is the MAIN DISPLAY of the analyzer:
ZERO CAL TIME 15
CO2
0000 %
CO
0000 %
O2
20.9 %
HC
0 ppm
NO
0 ppm
----
15:13:27
03/22/15
The first time to zero is 15 minutes. After that the time to zero is 30 minutes. The analyzer will beep 3
times one minute before a fresh air zeroing is required and then after a further minute beep continuously.
The bottom line of the display shows time, date and battery level.
When a zero is required the top left hand corner of the display will show “ZERO REQUIRED”. Press the
key to initiate zeroing. When zeroing always ensure that the analyzer is sampling fresh air
The analyzer is now ready for use.
NOTE:
The backlight comes on automatically whenever a button is pressed and then switches off after
about 30 seconds.
TIP:
It has been found that in most workshops there is a background level of HC due to oil permeation of
the floor. For true fresh air you need to be sampling outside the workshop or at least 2 meters above the
floor.
NOTES:
1) Lambda can be replaced by AFR as described below.
2) If AUTOLOG is active then the log time will be displayed at the top right hand side of the screen
3) If the charger is connected then the display will show the Battery icon filling up.
