Logging Settings - ION GASCLAM 2 Software Manual

GasClam 2 Software Manual

4.6. Logging Settings

The logging interval is set either using the Sample Interval box or the
Variable Interval Logging popup window.
4.6.1. Sampling Interval
The sampling interval defines the time between samples in hours and minutes. The maximum interval is 24 hours
(a sample is taken once per day), the default setting is once every hour and the shortest logging interval is 3
minutes, however for Alk-Mn it is not recommend and Li battery packs must not be set with an interval less than
15 minutes.
Power Source
3V Alkaline-Manganese Duracell 2x - MN1300 (Alk-Mn)
2.6V Nickle Metal Hydride rechargeable battery pack (NiMH)
7.2V Lithium non-rechargeable battery pack (Li)
12V External dc power supply (Ext)
Once logging has been started it will continue at the set interval until the battery stops, the GasClam 2 memory is
full (external power supply) or logging is stopped manually.
The first sample is taken immediately after logging is started and takes 2 minutes, the date stamp that is recorded
is the time when the sample was completed, so all date stamps in the downloaded data are shifted by 2 minutes
from the actual start time.
Example of Sampling Interval timeline
4.6.2. Variable Interval Logging
Variable Interval Logging is useful when for example a faster sampling rate is
required in the beginning to see more detail on the site and later a longer term
view is required.
To use Variable Interval Logging tick the box and click the "Variable Interval
Logging" button to open the popup window.
Four different logging intervals can be set each with a different sample count. The
first three are sets using the "Variable Interval Logging" popup window and the
fourth set is based on the Sample Interval.
After entering the required details click the "Save" button.
To save all changes the "Write settings to GasClam 2" button must also be clicked,
otherwise any changes made will not be saved.
Unrivalled Detection.
Sampling Interval Range
15 minutes to 24 hours
3 minutes to 24 hours
15 minutes to 24 hours
3 minutes to 24 hours
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