Ophir Optronics Ltd QSR Manuel D’Utilisation
Appendix B – Calibration, Traceability, and Recalibration
Ophir Thermopile Heads
Accuracy of Calibration
Since the instruments are calibrated against NIST standards, the accuracy is
generally 1% at the power level at which the calibration has been performed.
This accuracy has been verified by checking the scatter of the results when
several instruments are calibrated against the same standard. The maximum
measurement error is less than the sum of the specified accuracy and linearity.
Since the linearity is also 1%, the maximum error in measurement is generally
less than 2%.
generally 1% at the power level at which the calibration has been performed.
This accuracy has been verified by checking the scatter of the results when
several instruments are calibrated against the same standard. The maximum
measurement error is less than the sum of the specified accuracy and linearity.
Since the linearity is also 1%, the maximum error in measurement is generally
less than 2%.
Recalibration from a Known Source of Laser Power
3A Series
1 Watt
7 Volts
10A Series
10 Watts
17 Volts
30A Series
30 Watts
35 Volts
150A Series
100 Watts
65 Volts
L250A Series
200 Watts
95 Volts
300W Series
125 Watts
65 Volts
1500W Series
and above
and above
200 Watts
95 Volts
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 B-3 Adjust Calibration Factors Dialog Box
The Original area displays the original Measurement, Overall Sensitivity
and Laser Factor fields. The Current wavelength is displayed beneath the
Original area, refer to Note on page 97.
and Laser Factor fields. The Current wavelength is displayed beneath the
Original area, refer to Note on page 97.
StarLab User Guide
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