Ophir Optronics Ltd QSR Manuel D’Utilisation
Chapter 4 – Measuring with the Thermopile Head
Calibration Factors
Calibration Factors
StarLab allows you to adjust power calibration factors, configure the response
factor and adjust energy calibration factors.
factor and adjust energy 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 original factory setting is recorded separately. This will make it
easier to restore the value to its original setting later if needed
.
Adjusting Power Calibration Factors
The absorption of the various Ophir thermal absorbers can vary from disc to disc.
Therefore, all Ophir absorbers are individually calibrated against NIST traceable
standards. Ophir heads are individually laser-calibrated at several wavelengths,
against a NIST calibrated standard meter. For more information on Ophir head
calibration and traceability, refer to Appendix B – Calibration, Traceability, and
Recalibration.
Therefore, all Ophir absorbers are individually calibrated against NIST traceable
standards. Ophir heads are individually laser-calibrated at several wavelengths,
against a NIST calibrated standard meter. For more information on Ophir head
calibration and traceability, refer to Appendix B – Calibration, Traceability, and
Recalibration.
StarLab offers two types of calibration:
Overall Calibration – Changes the calibration at all wavelengths at
once. Use Overall Calibration if your head is equipped with the Ophir
CAL resistor. For more information on the Ophir CAL resistor, refer to
Appendix B – Calibration, Traceability, and Recalibration.
once. Use Overall Calibration if your head is equipped with the Ophir
CAL resistor. For more information on the Ophir CAL resistor, refer to
Appendix B – Calibration, Traceability, and Recalibration.
•
• Laser Specific Calibration – Changes the calibration at one specific
laser wavelength. Use Laser Specific Calibration, unless your head is
equipped with the Ophir CAL resistor.
equipped with the Ophir CAL resistor.
To adjust the power calibration factor:
1. Click the right mouse button and select Calibrate from the pop-up menu.
OR
Open the Functions menu and select Calibrate. The Adjust Calibration
Factors dialog box appears.
Factors dialog box appears.
Figure 4-7 Adjust Calibration Factors Dialog Box
StarLab User Guide
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