Operating Instructions
Van Walt Ltd | Prestwick Lane | Grayswood | Haslemere | Surrey | GU27 2DU | Tel. 01428 661 660 | Fax. 01428 656 808 | www.vanwalt.com
Rain Gauge
15
VAN WALT
Monitoring your needs
4. Use
4.1
LDM e+
Just as with the settings, monitoring of the
data- logger takes place in the window in
LDM e+ under the Settings tab.
It is in this window that two of the most important actions are performed for the operation of the
datalogger. These are:
Starting and stopping the datalogger:
Monitoring of the datalogging process can be done by clicking
on the tab Direct reading in the Settings window and by clicking
on Start direct reading in this screen. The current status will then
be read continuously and at the same time the buttons that start
and stop the datalogger are correctly activated (in the Settings
window). The following functions are now also available:
• Start now: clicking on this button will start the datalogger
straight away
• Future start: by clicking on this button the datalogger will
start at the time and date that is shown in the Standard
Settings window.
• Synchronize logging time with system time on starting: if this box
has been checked, the RTC clock of the datalogger is
synchronized with the system clock of the computer at start-up.
• Stop: clicking on this button will stop the datalogger immediately
It should be noted that when the datalogger is started all the
measurements are erased and a new session is commenced.
If the datalogger has been started and settings are altered, these changes will not take effect
until the next measuring session, i.e. not until the datalogger has been stopped and started again.
Reading the measurements:
The datalogger is read in the Settings field by clicking on the button in the wtoolbar as
shown on the right. These measurements are recorded in LDM e+.
All the series of read and recorded measurement data can be viewed in a list under the e+
measurements tab -> Series. If measurement data are read more than once while the datalogger
is operating , there will be duplication of measuring data, divided over several measurement
series. These data can be removed by clicking on the Remove duplicates button. If a series of
measurements has been selected by going to the lists, the measuring results can be viewed and
analysed in the e+ measurements window -> Tables and graph, while it is also possible to go to the
main window and to export the data via the menu File -> Export.
