5200 Multi Purpose and 5200 Multi Purpose HF Gas Analysers
05230001A / Revision 9
45
6.5.4 Setting the measurement alarm levels and modes
Before you start to take sample readings, you must ensure that the measurement
alarms are correctly configured for your sample gases.
5. On the Alarm mode screen, use the and soft keys to highlight each
of the following alarm options, and select the required option (using the method
in Step 4 above) or enter the appropriate levels (using the method described in
Section 4.10):
• Latching
• Level
• Hysteresis.
+
Ensure that the measurement alarm and hysteresis levels are not too close
to the expected sample measurements. (If they are, minor - and acceptable -
variations in your sample gas concentrations will result in spurious alarms.)
+
If you configure one measurement alarm as ‘low’ and configure the other
alarm as ‘high’, ensure that the ‘high’ alarm and hysteresis levels are higher
than the ‘low’ alarm and hysteresis levels. (If you do not, the Multi Purpose
can be permanently in an alarm condition, until you correct the levels.)
1. On the Measurement screen,
press the soft key. The
Alarm option screen will then be
displayed, as shown in
Figure 27.
2. Highlight the "Set up" menu
option, then press the soft
key. The Alarm set up screen will
then be displayed, as shown in
Figure 28.
3. Use the and soft keys
to highlight the required alarm,
then press the soft key.
The Alarm mode screen will then
be displayed, as shown in
Figure 29.
4. If the alarm mode is not the
required mode, press the
soft key, use the and
soft keys to select the required
mode (none, low or high), then
press the soft key.
Figure 27 - The Alarm option screen
Figure 28 - The Alarm set up screen
Figure 29 - The Alarm mode screen
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