LogTag Recorders TRED30-16R Product User Manual page 12

Paused Readings
During configuration of the TRED30-16R you can set the option to
ignore up to 15 readings for alarm- and statistics calculations after either
button is pressed. The readings are still shown on the graph and in the
data listing, but they are labelled as paused, and their value is ignored
when determining alarm trigger conditions, minimum/maximum values
and other statistical calculations. This function is useful when you wish
to review readings during the recorder's operation (or clear an alarm),
but you do not wish to trigger an alarm due to your handling the
product. It also allows the recorder to acclimatise to the environmental
conditions again, before further readings are processed.
After a button press the display shows the word
symbol.
Paused readings are specially marked in the graph and data listings.
The option is set in the advanced options dialogue in LogTag
during configuration and is expressed in number of readings after the
last button press (see Advanced Configuration Options
will turn off as soon as the last ignored reading has been
PAUSED
recorded. It will show longer, if your last button press was just after the
recorder took a temperature reading, but will be displayed for a shorter
period if you pressed the button just before a reading is taken. With the
options configured in the example on page 5 and on page 6 the time for
to show could be as short as 10 minutes, but as long as 20
PAUSED
minutes.
Sensor is disconnected
The display shows --.-, if the external sensor of the TRED30-16R is
disconnected. This function is useful if the sensor is permanently
mounted , but you wish to take the TRED30-16R to a computer for
downloading its data.
Any values recorded during the time the sensor is disconnected will not
be taken into account when calculating statistics values or alarms.
If for example the temperature was above 10°C for 12 hours (which
would normally trigger an alarm event), but the sensor was
disconnected for 3 hours during this time, no alarm would be
generated.
After downloading the TRED30-16R with LogTag
readings taken while the sensor is disconnected are shown as --.- in the
data list. The graph will show a gap during this period.
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Page 12 of 17
If the sensor was disconnected for a complete day, the minimum and
maximum statistics for that day will show --.- on the display and --.-
on the list.
Power Save
When
switch off after 30 seconds of no button activity.
The recorder uses significantly less battery power with the display off
(typically only around 1/3 of the average power with the display on).
This function is appropriate in applications where the current
temperature display is not required to be seen frequently, such as in
transit monitoring applications.
next to the
PAUSED
Pressing any button will re-activate the display.
The power save mode is enabled or disabled when configuring the
TRED30-16R via LogTag
(see
Note: The display will not turn off if there is a pending alarm!
Total Number of Days Statistics Collected
The recorder can be configured to show the total number of days for
which statistics data was collected. This feature is enabled when
configuring the TRED30-16R via LogTag
in the
®
Analyzer
Options
When enabled, the total number of days for which statistics data was
on page 6).
collected are shown on both the
Display.
Note, this is not always the number of days the recorder has collected
data. Depending on the sampling interval the recorder can hold more
than 30 days of temperature readings, but since the maximum
number of days for which statistics can be collected is 30, the highest
number that can be shown here is 30.
®
Analyzer, any
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TRED30-16R Product User Guide, Revision 1.4, copyright © 2004-2017,
Power save mode is enabled, the display will automatically
®
Analyzer in the
Advanced Configuration Options
Advanced Options dialogue (see
on page 6).
Recording Display
Figure 6: TRED30-16R recording, showing '18' days of data has been collected.
Figure 7: TRED30-16R stopped, showing '27' days of data has been collected.
Advanced Options dialogue
on page 6).
®
Analyzer and can be located
Advanced Configuration
and the Stopped
(603) 746-5524
®
LogTag Recorders . All rights reserved.