LeveLine
®
Instruction Manual
10401-01026 Rev D
2.8.6. LeveLine
®
Scheduled Logging Start, Logging Interval and Duration Setup
This is the most important part of the LeveLine
®
setup. The logging interval (time between
logged data points) must always be set up.
The LeveLine
®
Logger can then be set up to start logging data automatically at a pre-
determined time for a set duration, or it can be set up for manual deployment. This section
covers logging interval, scheduled logging start and logging duration.
To set up the logging interval, adjust the boxes beside the 'Log data every:' label shown
above bordered in red. Different models of LeveLine
®
Loggers have different permissible
logging rates.
•
Standard LeveLine
®
Loggers can be set up to log data as fast as ten times per
second (log data every 0.1 second) and as slow as once every five days (120
hours).
•
LeveLine - CTD
®
Loggers can be set up to log data as fast as once per second and
as slow as once every five days (120 hours).
•
LeveLine
®
BARO Loggers can be set up to log data as fast as once per minute and
as slow as once every five days (120 hours).
It is advisable to choose the slowest logging rate that your application can comfortably
support. This is for two reasons: battery life and memory capacity. If you choose an
extremely fast logging rate, the Logger's memory will fill up very quickly and you will have
massive files to handle when you come to download and analyse your data.
Also, your battery will be depleted quickly. For example, at a logging rate of 0.2 seconds,
the LeveLine
®
will be logging 18,000 points per hour. This will obviously deplete the
available memory extremely quickly.
If you set a long logging interval but a very short event checking interval, the battery life
should be estimated on the event checking interval rate. Even though the logger will not log
data every time an event is checked, it will take a reading and hence will use the same
amount of battery power as a logged data point.
Unless you are monitoring live pumping operations or similar dynamic events, water levels,
EC and barometric pressures tend to alter reasonably slowly. For this reason, logging rates
between 1 and 15 minutes, and barometric pressure logging rates between 15 minutes and
1 hour are normally recommended.
© 2019 Aquaread
®
Ltd.
www.aquaread.com
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