THORLABS WFS20-14AR, Operation Manual

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Wavefront Sensor
7.2 Troubleshooting
·
No Wavefront Sensor found after software start
Note
If the Wavefront Sensor is connected to a different USB port of the PC than before, the
Wavefront Sensor driver must be installed for this USB port, too. Wait a few seconds until
the driver is installed successfully and the WFS is ready to use. See also
First Steps .
Ø
Check if the Wavefront Sensor is connected to the USB port of the PC using the included
USB cable.
Ø
Make sure that WFS30 and WFS40 devices are connected to a USB 3.0 port on your
computer. USB3.0 ports can be recognized by their blue plastic insert. Additionally, they
are marked with the USB3
logo.
The LED at the back of the Wavefront Sensor indicates the instrument state:
- LED = off USB cable or USB port is defective
- LED = red WFS20: DC power supply is missing.
WFS30 / WFS40: Sensor is not recognized by the Windows system; install
the Wavefront Sensor drivers (see
Software Installation )
- LED = green Wavefront Sensor is properly installed and ready for operation
Ø
Was the Wavefront Sensor software installed completely?
Ø
Be sure to have administrative privileges on your computer to install software. Contact
your system administrator in case of trouble.
Ø
Click the 'Refresh' button in the 'Select Instrument' dialog. It will take a few seconds to rec-
ognize the instrument.
For verification purposes, check the USB controller branch of the Device Manager in the
Control Panel. If properly installed, the Wavefront Sensor hardware appears in the list as
shown on the next page:
16
15
14