11
For long periods of purge monitoring, the HPM battery charger can be
connected. Depending on the type of logging required, use ‘Log 2’ or ‘Log
3’.
2.5.2
Log 2
The HPM will start logging when the ‘Log’ button is pressed and will stop
logging once the pre-set time has been reached, or ‘Reset’ is pressed.
2.5.3
Log 3
The HPM will start logging as soon as the ‘Log’ button is pressed and will
continue logging at the set intervals until the ‘Log’ button is pressed again.
2.6
Limits
The HPM is equipped with a visual warning system to show when the O2
concentration is at an acceptable level. The ‘Limits’ setup screen allows
the user to pre-set the thresholds which trigger the warning system to
operate.
The ‘High limit’ screen will be
red
when the reading is above the set level.
If readings are between the set ‘High limit’ and the ‘Low limit’, the screen
will be
yellow
.
When readings drop below the set ‘Low limit’, the screen will be
green
.
To set the limit level first enter the ‘Setup’ screen by pressing and holding
the ‘Reset’ Button.
Press the ‘Down’ button to enter the ‘Limits Setup’ screen.
