7
•
Index:
serial number, beginning with 1.
•
Absolute date/time:
date and time when
the measurement/set of measurements
was recorded.
•
Relative time [s]:
elapsed time in sec-
onds, from the beginning of the measure-
ment to the recording of the current meas-
urement/set of measurements.
•
Save selected data to files:
converts the
measurements selected in the left-hand list
into text files (separated by tab charac-
ters). A file name is requested for each
measurement. The preset file names in-
clude date, time, measurement values and
sampling rate and can be adopted without
any changes.
•
Quit
exits the program.
Device Set-up
•
Vdc/Vac/(Idc/Iac):
selects the measuring
mode for the aforementioned analogue in-
put (Vdc: DC voltage/Vac: AC voltage/Idc:
DC current/Iac: AC current).
•
Range slider (200mV-20V/200mA-2A):
selects the measurement range for the
above-mentioned analogue input.
•
Auto Range:
if this control box is acti-
vated, the measuring range is automati-
cally adjusted by the device during the
measurement.
•
Store:
determines whether data from the
aforementioned input should be stored.
•
Sampling rate slider:
this sets the sam-
pling rate for the measurements. Fre-
quency is displayed in the field f=, and the
corresponding cycle duration is displayed
in the field T=.
•
Apply settings:
writes the selected set-
tings to the device.
•
Clear memory:
clears the entire memory
of the instrument.
•
Quit:
exits the program.
9.4 Reading and saving measurement data
Reading and saving measured data with the
3B NET
log™
equipment:
•
Connect the 3B NET
log
™ equipment to a
computer via USB cable.
•
Start
3BNET
data
and click on the tab
“Read Data”.
•
Press
Read
and wait till the progress bar
reaches 100%.
•
Select the measurements you wish to be
saved from the list on the left.
•
Select columns that are to be written next
to the data.
•
Click
Save selected data to files
•
Enter a file name for each measurement,
or accept the default name.
•
For further processing of the saved data,
use spreadsheet or data analysis pro-
grams.
10. Update Firmware
•
In the 3B NET
data
software, click “Update
firmware” tab.
•
Follow the instructions in the left-hand
section of the software window and click
“
Start
” in the options box.
The current version of the firmware will now be
installed automatically. As an alternative, use
“Browse” in the options’ box to search and
install older firmware versions.
11. Format of exported files
Exported files have the following format (the words shown here between the delimiters <> are simply
placeholders for actual data. Entries are separated by tab characters. Depending on the settings,
some columns may be omitted):
# <Date> <Time>, <Inputs/Measurement modes>, <Sampling rate>, <Number of
measurement records>
Index (tab) Absolute date/time (tab) Relative time (tab) <Quantity at ana-
logue input A>[<Unit for analogue input A>] (tab) <Quantity at analogue in-
put B>[<Unit for analogue input B>] (tab) Dig A (tab) Dig B (tab) Dig C
(tab) Dig D(return)
