Servomex xendos 1800 Series, Quick Start Manual

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xendos 1800 Series
11
5.
Spare range labels are provided with the analyser that slip into the side of
the front panel to indicate the new ranges selected.
6.
Switch on the analyser, the Range LED indicator on the front panel will
show whether Range 1 or Range 2 has been selected, see Figure (C).
3.2 Alarm Set Point Adjustment
The alarm set-point range is equal to the full scale range of the analyser and its
digital display (0-100% O
2
). The alarm level is set as an Oxygen concentration
value. It is independent of the scaling selected for the analogue outputs.
Changing the ranges of the output signals with the Range Change push button
switch on the front panel does not affect the alarm set-points. Adjusting the
alarm set-point does not affect the current or voltage output signals.
1.
Open the hinged front left cover using an 5mm allen key.
2.
Press the ‘Alarm set’ button; one of the LED indicators will be illuminated.
The set-point for this alarm will be shown on the display. Adjust the alarm
set-point control adjacent to the illuminated indicator to achieve the
desired alarm set-point.
3.
Press the ‘Alarm set’ button again, a LED indicator for the other alarm will
now illuminate. Adjust the alarm set-point displayed to the desired level.
The LED indicators also indicate whether the alarm is configured to be a High or
Low alarm, they will flash if an alarm is present and will automatically clear when
the oxygen concentration returns to normal. Refer Figure (C).