No.
Key
Description / Function
1
Prints the current emissions data, time and date (when the printer is fitted as an option)
2
Paper Feed
Advances the paper roll by one line (when the printer is fitted as an option)
3
Data Output
Sends emissions data through the RS232 socket so that data may be accessed using a
suitable terminal (when fitted as an option)
4
Backlight
Switches the backlight on and off (when the backlight is fitted as an option)
5
Hold
Freezes the data collection and print functions. If the unit is frozen then asterisks (**)
are printed on both sides of the display. Toggles on / off.
6
Scale
Displays the life remaining of the oxygen sensor and the current pressure reading (when
the pressure sensor is fitted as an option).
7
Temperature
Displays the intake, stack, ambient and net (calculated) temperature values in the
chosen units
o
C or
o
F
8
Emissions
Displays combustion gas concentrations
9
Efficiency
Displays the efficiency, excess air, ratio, CO
2
(calculated), CO and O
2
concentrations
0
Status
Displays the date, time, remaining battery life and current selected fuel
Menu
Displays menu screens to allow user to change settings
Return
Used with the menu key
