7.2 Troubleshooting
7.2 Troubleshooting
In case that your PM100D shows malfunction please check the following items:
Unit does not work at all (no display at the front):
PM100D turned on?
Press On switch in the left side panel.
PM100D battery discharged / defect
Plug in AC Adapter
Unit automatically switches off
Check auto-shutoff setting
Check battery charging symbol
Plug in AC Adapter
Display gets or remains blank while or after connecting a new sensor
Power down and up the unit with the On switch in the left side panel
Power or Energy reading is negative
A photodiode or thermal sensor is connected
Check if the unit is in relative measurement mode
Conduct the dark current adjustment procedure
A photodiode is connected
Check the polarity of the connected photodiode
A thermal element is connected
Check the polarity of the connected thermal element
A pyro-electric element is connected
Check the polarity of the connected pyro element
Pulse energy measurement cannot be measured or is measured wrongly
Check for the right trigger level between noise level and expected pulse height
Check if energy sensor can handle the laser pulse repetition rate
Data logging to SD card doesn’t work
Check for inserted SD card
Check write protection switch on SD card
Check for enough free memory
If you don’t find the error source by means of the trouble shooting list please first
contact the Thorlabs-Hotline ( europe@thorlabs.com) before sending the PM100D for
checkup and repair to Thorlabs - Germany.
(refer to section 7.7, ‘Addresses” on page 73)
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