Lightmed TruScan 532, Service Manual

Page: 82 / 140

Multi-Wavelength Pattern Scanning System - LightLas 532 / 670 - Service Manual Page 82 Rev. No 01
D. Software Calibration for All Different Power Range (50 to 2000mW) for
Port 1 & 2
8. Validate if 50mW power level readout is still at 25mW +/- 20%. If not, proceed to
the next otherwise start the power level from 10omW
9. Activate power level 100mW and engage the “Treat” mode
10. Fire the laser and validate if the “Detector VAL” value is 50mW +/- 20%
11. Increase or decrease the power factor by 0.02 and recheck if the value match to
actual power meter reading and repeat the same process until value is matched
12. Repeat the same process (step 8 to step 11) for power range from 100 to 2000mW
for Port 1
13. Save all the values when they are all finished and proceed to next stage (670nm
calibration process)
14. Repeat the same process (step 8 to step 11 and power range from min to max)
for Port 2 and reallocate the detector to Port 2
** Note: Do all the software calibration for all power ranges (50mW to 2000mW)
through this procedures for Port 2. Do not forget to engage to Port 2
before calibration
15. Fill out “Power Meter Calibration Record Sheet” for final validation.
NOTE:
The external power meter reading needs to be doubled ( x2 )
as the output is pulsed with a 50% duty cycle ; ex: an external
power meter reading is 25mW , which means the actual
output power is 50mW