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Velleman DEM171 Bedienungsanleitung Seite 5

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o Password: A 16-character password may be enabled to prevent
unauthorized reprogramming prior to pressing the [START]
button.
o Company Name: The user-defined name of max. 20 characters
will be displayed in the PDF report as a title.
o Alarm Types:
Single Alarm: An alarm is triggered immediately when the
measured value exceeds the alarm threshold.
Cumulative Alarm: An alarm is not triggered when the
measured value exceeds the alarm threshold, but only once the
overall average value during the alarm delay duration exceeds
the alarm threshold.
Disable: No alarm function.
o Alarm Delay: Adjustable delay interval from 5 minutes to
2 hours.
o Alarm Limits: Select the alarm threshold values.
o Time Zone: Before programming the logger, ensure that the PC
is set for the correct time zone. The logger will automatically
synchronize.
4.
Press [Save] to confirm all settings. Disconnect the logger from
the PC.
5.2
Start Logging
1.
Press and hold [START] to start logging. [REC] will flash on the
display to indicate the logging is activated. Parameters are
updated every 10 seconds.
2.
During logging, the green LED will blink every 10 seconds if
there is no alarm. If an alarm occurs, the red LED will blink. If
the alarm is triggered, connect the logger to the PC to generate
the report, or power off the logger.
3.
Press and hold [MARK] until the reading flashes to place a
bookmark.
4.
Press [MAX/MIN] to review the maximum and minimum data
stored in the memory. Press [MARK] to review the approximate
battery lifetime left.
V. 01 – 19/01/2017
DEM171
5
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