Advanced settings
Automatic scale
The automatic scale is used to display the measured leak rate centred on 2 or 4 decades.
The scale varies according to the leak rate measured. When the automatic scale is acti-
vated, the scales set for the leak rate and pressure are no longer taken into account.
Example: leak rate = 5·10
-7
mbar·l/s (5·10
-8
Pa·m
3
/s )
● automatic scale 2 decades: scale from 1·10
-6
to 1·10
-8
mbar·l/s
(1·10
-7
to 1·10
-9
Pa·m
3
/s )
● automatic scale 4 decades: scale from 1·10
-5
to 1·10
-9
mbar·l/s
(1·10
-6
to 1·10
-10
Pa·m
3
/s )
7.1.4 Graph clearing
Current window
Press on the screen and
[Clear Graph]
.
Validate the message.
Clearing the current window does not delete the current recording or recordings already
made.
Recording
Press on the screen and
[View Rec.]
.
Press
[Clear]
.
Validate the message.
7.1.5 Recording
Recording makes it possible to store the measurements taken during the test in the con-
trol panel memory:
it will not save these measurements
(see 7.1.6)
.
During a recording, all the detector functions are available.
After the detector is switched off (cut off at the mains or by the operator), the recordings
already made are stored in the memory. For the next recording, the operator will have to
specify:
- if the new recording is to be added to the recordings in the memory
[OK]
- if the new recording is to delete or replace the recordings in the memory
[Cancel]
.
Press on the graph and
[Record]
to change recording parameters.
Press on the graph and
[Scale]
to change graph parameters.
Press
[Record]
(4)
(see 7.1.1)
to start recording
None of the measurements displayed on the plot before the recording starts will be re-
corded.
Press
[Stop Rec.]
(4)
(see 7.1.1)
to stop recording.
Press on the graph and
[View Rec.]
to see the recording.
If the memory is not cleared between two recordings (
[Clear]
(see 7.1.4)
), all subse-
quent recordings will appear consecutively on the same memorised plot. A ▲ cursor
indicates the end of each recording.
4 Displaying/Hiding the measured leak rate
5 Setting the leak rate scale (If ’automatic’ scale is deactivated)
6 Displaying/Hiding the inlet pressure
7 Setting the inlet pressure scale
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