Chapter 5 Troubleshooting - THORLABS PDA100A2 User Manual

Si Switchable Gain Detector

Chapter 5 Troubleshooting

Problem
There is no signal response.
Output Voltage will not increase.
Detector Output is skewed.
Page 6
Suggested Solutions
Verify that the power is switched on and all
connections are secure.
Verify the proper terminating resistor is installed
if using a voltage measurement device.
Verify that the optical signal wavelength is within
the specified wavelength range.
Verify that the optical signal is illuminating the
detector active area.
Check to make sure the detector is not
saturated. Refer to the Output Voltage spec. in
the table on page 7.
Install a 1" Lens Tube (SM1L10) to the thread
coulpler (SM1T1) to baffle any external light
sources to see if this improves the response.
Chapter 5: Troubleshooting
TTN1134694-D02