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4.1 Switching on
When the analyser is fully connected it may be switched on. The cell heater will begin to warm
up. During this time the display will flash “HE xxxxx and the concentration display will make
high and low excursions. Once the correct temperature is reached, the “HR” will end and the
display will stabilise. Allow a further 15 minutes before relying on the oxygen reading. Note
that the temperature controller settings are locked and cannot be changed.
4.2 Programming
NOTE: See figure 3
The user programmable features are accessed by pressing and holding the Edit button for
approximately 8 seconds when the instrument is in normal measurement mode (as turned on).
Each subsequent momentary press of the Edit button scrolls the display through a sequence of
adjustable parameters. The sequence is as follows.
All Programming screens operate on the same principle
• use the “
” or “ ” arrows to scroll through the parameters
• By pressing “Edit” and the x in the xP nnnn will flash then using the
“
” or “ ” arrows to edit the value. Pressing “Edit” saves change
while “Exit” leaves values unchanged
4.2.1 Analogue output
1P xxxx
The display shows “1P xxxx”, where “xxxx” is the oxygen concentration at which the analogue
output top scale is set at to the right of the display a % or ppm symbol is displayed to indicate
the units of the value displayed.
2P xxxx
The display shows “2P xxxx”, where “xxxx” is the oxygen concentration at which the
analogue output bottom scale is set at to the right of the display a % or ppm symbol is
displayed to indicate the units of the value displayed.
4.2.2 Alarm 2
The operation of alarm 2 is identical to that of alarm 1. The menu entries are as follows:
6P xxxx
The display shows “6P xxxx”, where “xxxx” is the oxygen concentration at which Alarm 1 is
set.
7P xxxx
The display shows “7P x.x”, where “x.x” is the value of the hysteresis for alarm 2.
8P xxxx
The display shows “8P x”, where “x” indicates the operating mode of the alarm.
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