Ophir Optronics Ltd QSR Manuel D’Utilisation

Page de 120
Chapter 6 – Measuring with the Pyroelectric and PD10 Heads 
Adjusting Calibration Factors 
2.  To configure when to stop taking exposure measurements, click Setup
The Exposure Setup dialog box appears. 
 
Figure 6-9 Exposure Setup Dialog Box 
3.  Perform one of the following: 
•  Select Stop after Time Out, and type the stop time in the text box. 
•  Select Stop after Pulses, and type the number of pulses in the text 
box. 
•  Select Stop when Energy is reached, type the amount in the text box, 
and then select the unit from the drop down list. 
•  Select Manual Stop to continue measuring the exposure until you 
press Stop.  
4.  Click OK. The Exposure Setup dialog box closes. 
5.  Click Start. For all modes except Manual Stop, the progress bar shows the 
continuing progress of the exposure measurements. 
6.  To stop the exposure measurements, click Stop, or wait for the exposure 
period to complete. 
7.  Click Close to close the Exposure Screen dialog box. 
Adjusting Calibration Factors 
  Warning: Adjusting the calibration factor makes a permanent change in the head. 
It is strongly recommended that before making any change to the factor, 
the original factory setting is recorded separately. This will make it 
easier to restore the value to its original setting later if needed. 
The sensitivity of the various Ophir pyroelectric sensors varies from one to 
another, as well as with wavelengths. Therefore, Ophir pyroelectric detectors are 
individually calibrated against NIST traceable standards. In addition, the 
calibration is corrected in the devices for different wavelengths. For more 
information on calibration, refer to Appendix B – Calibration, Traceability, and 
Recalibration
StarLab User Guide 
59