73
To set the offset of a specific input:
1. Measure two known reference values making sure to use the input you need to calibrate.
2. Enter the offset value as described in section
5.17.4
above, making sure to select the correct
input number instead of
All
.
3. You can repeat the procedure for every input.
5.17.6.
Calibrating the Internal Temperature Sensor on the OM-
DAQLINK-TEMP
The OM-DAQLINK-TEMP internal temperature sensor is a PT-100 sensor. Calibration of this
sensor is performed by calibrating the external PT-100 input i.e. two-point calibration followed
by offset calibration.
1. In the Calibration dialog, select
PT-100
in the Sensor drop-down menu and select
All
inputs.
2. Press
Setup
to proceed.
3. Connect a calibrator or an actual PT-100 sensor to Input-1. Calibrate the input using the
reference values.
Once this calibration procedure is complete both the logger’s internal temperature sensor (PT-
100) and external PT-100 inputs will be calibrated.
5.17.7.
Calibrating the External PT-100 Sensor Input
OM-DAQLINK PT-100 calibration is a standard 2-point calibration followed by offset calibration.
Once the PT-100 sensor has been selected in the
Sensor
drop-down menu, click the
Reset
Calibration
button. Then proceed with the 2-point calibration procedure.
Before each calibration this step must be performed otherwise the calibration will not be
accurate.
5.17.8.
Saving Calibration Settings
At any time you may manually save the logger’s calibration settings locally to your PC.
1. Open the logger context menu, select
Calibration > Save Calibration
and enter the
password to access this feature.
2. The
Save As
dialog will open. Name the calibration file (with extension .dcf) and save it
either in the default Calibration folder in the DataSuite directory or in a folder of your choice.
5.17.9.
Loading Calibration Settings
You can load a previously saved DataSuite
.dcf calibration file at any time to restore a logger’s
restore specific calibration settings.
1. Open the logger context menu, select
Calibration > Load Calibration
and enter the
password to access this feature.
2. In the
Open
dialog, browse to the calibration file you need and click
Open
. The logger will
be updated with the new calibration settings.