Chapter 2 Working with DaqLab 61
Fine Offset Calibration
If, after the calibration procedure, DaqPRO still exhibits some offset value use the Fine offset tuning tool
to correct it.
The offset value is the difference between the value displayed by DaqPRO and the reference value. For
example if the calibrator is set to 0 °C and DaqPRO reads 1 °C the offset value is +1, but if DaqPRO
reads −1 °C then the offset value is −1.
a. Connect DaqPRO to the PC.
b. Click Logger on the menu bar, then click Calibration > Calibrate Sensors.
c. Enter the calibration password, then click OK.
d. Choose a sensor from the Select sensor drop-down menu and click OK to open
the Sensor calibration dialog box.
e. Select the Fine offset calibration option.
f. Enter the offset value.
g. Click OK.
The calibrated sensor parameters will be saved both in DaqPRO and DaqLab memories, so there is no
need to calibrate DaqPRO every time you run the DaqLab program.
Voltage 50mV Calibration
To calibrate the 50mV sensor type first use the two-point method as described above, then proceed to
offset calibration as described below.
Offset Calibration
Calibrating any of the thermocouple sensors comprises of two steps.
First calibrate the 50mV voltage sensor to set the slope of the sensor's conversion function. Then use
the calibration procedure described below to calibrate the sensor's offset.
The offset calibration is automatically applied to all input. If more accurate calibration is needed, the
software lets you set the offset to each input separately.
Note: DaqPRO ships fully calibrated for all inputs simultaneously.
www.esis.com.au
Ph 02 9481 7420
Fax 02 9481 7267
esis.enq@esis.com.au
To Next Page
Loading...