Accsense
VersaLog Data Loggers User’s Manual
Page 31
End Time:
This parameter specifies the date and time when the logger will stop the session of logging.
This value may be overridden by
Logging Mode
parameter. . If
Logging Mode
was set to
Continue Logging
, the
Start Time
and the
End Time
will be shifted forward.
Sampling Interval:
This parameter specifies the time span the logger will wait after it takes the first sample and
before it takes the second sample.
If the logger is configured with a sampling interval of 4 seconds or faster, it will operate in
fast sampling mode. When a logger is in fast sampling mode, it has the following conditions:
1.
The logger needs external power supply (supplied by USB or AUX port) for the logging
period.
2.
Any communications with the logger will interrupt its operation and stop the recording.
3.
The number of enabled channels depends on the sampling intervals:
1 channel with 20 ms interval
2 channels with 30 ms interval
8 channels with 40 ms or bigger interval
Logging Mode:
This parameter specifies if the logger will stop or continue logging when the memory is full.
Available settings are
Stop Logging
and
Continue Logging
.
If
Logging Mode
was set to
Stop Logging
, the logger will stop logging at the
End Time
. If
Logging Mode
was set to
Continue Logging
, the logger will continue logging and the
oldest data will be overwritten by the new data.
Downloading Data
The data in the logger can be transferred to the computer by VersaLog SiteView software. If the
logger is not in
Fast Sampling
mode, the data can be downloaded any time even when the
logger is still recording. If the logger is in
Fast Sampling
mode, downloading the data will
make the logger stop logging at the time when it received the downloading command.
The readings saved in the logger are ADC digital values, and will be converted to physical
measurements by VersaLog SiteView software after they are downloaded to the computer. The
data conversion is handled by an equation that may be embedded in VersaLog SiteView
software or a script provided by the user.
Field Activation
The Accsense VersaLog data logger comes with an on-board activation button which can be
used to activate/initiate the logging session in the field.
To activate the logger for new session:
