User`s manual

MDL-DataManager™ Reference Guide Architectural Energy Corporation
Section 3.0 MDL-DataManager™ Software Page 12
filled in based on the configuration information stored in the MicroDataLogger unit
(MDL) from the last time it was configured.
If the File–Use Existing Config is initially selected, the Start Date and Start Time,
Duration, Sample Interval and Samples To Average fields are filled in based on the
information previously saved in a configuration file.
Start Date and Start Time. Fill in the desired Start Date and Start Time using
“AM/PM” or military time, depending on how you have the clock set on your PC. The
Increase and Decrease arrow buttons next to each field can be used to increase and
decrease the values in whole days or hours, respectively. Values can also be entered
from the keyboard.
Set to Now. This button automatically sets the start date and time to the current date
and time.
Every time the MDL is configured, the logger synchronizes its internal clock to the
clock of the PC being used to configure it.
Duration. The Duration is the length of time that the MDL will be deployed collecting
data. Select the desired time units: days, hours, or minutes. Fill in the Duration field.
The Increase and Decrease arrow buttons next to the Duration field can be used to
increase and decrease the duration in whole days, hours, or minutes depending on the
duration units selected.
Tip:
If you wish to collect data for the maximum period available at the selected
storage interval, set the duration to a very large value (999 days) and MDL-
DataManager will automatically change the duration to the maximum value
possible.
Stop Date and Stop Time. The Stop Date and Stop Time are calculated fields and
will be filled in automatically, based on the Start Date and Start Time and the Duration
entered.
Sample Interval. The sample interval is the length of time the MDL will sleep before
waking up to take the next sample (read the sensor values of all channels). Select the
sample interval from the drop-down list.
Note:
Short sample intervals will decrease the amount of time that the logger can
operate with only the built-in battery. For information on the period of time that
the logger can operate for various sample intervals, see Estimated Battery Life.
Samples to Average. The Samples to Average is the number (1 to 255) of samples
to be averaged and stored as one reading in the data file. For example, if the Sample
Interval is set at 15 seconds and the desired Storage Interval is 1 minute, set the
Samples to Average to 4.
Tip:
Use the Samples to Average feature when short of memory and you need a long
duration time; however, averaging samples does not extend battery life.
Storage Interval. The Storage Interval is the time between stored values and is a
calculated field. It will automatically be filled in based on the sample interval and the
Samples to Average values.