Thermo Scientific Surveyor UV Plus Hardware Manual page 63

Table 7. Detector-related problems (Sheet 3 of 3)
Symptom Cause
No peaks, or peaks Incorrect wavelength setting
much smaller than
expected
Lamp not on or defective
Integrator input and output
voltage not matching
Insufficient sample reaching the
detector
Broad tailing peaks Excessive rise time
Poor connection at flow cell
inlet
Detector not Tripped circuit breaker at power
powering up outlet
Blown detector fuse
Incorrect voltage selected
Power cord not connected
Detector not Detector not receiving Start
running injection signal
Comm LED is Lost connection to the data
amber system computer
Run LED is An error occurred during a run
blinking amber
Lamps LED is Both lamps are off
amber
Thermo Scientific
Remedy
Check the wavelength setting. Make sure the correct file is
selected.
Make sure the lamp is lit. Run the detector diagnostic tests to
check the lamp. Replace the lamp if necessary. See
Maintenance" on page 38.
Verify that the integrator is connected to the appropriate
analog output connections on the detector's back panel. See
"Connecting the Analog Outputs"
Check the attenuation setting on the integrator.
Check the entire chromatographic system for leaks. Check the
sample injection volume.
Lower the rise time selection.
Check the end of the inlet tubing for a clean, flat surface free
of obstructions.
Reset the circuit breaker.
Replace the fuse. See "Checking the Power Setting and Fuses"
on page 13.
Verify that the voltage selector is set for the correct incoming
line voltage. See "Checking the Power Setting and Fuses"
page 13.
Connect the power cord.
Check the connection to the Run contacts on the back panel
of the detector.
Check the Ethernet connection to the data system computer.
Check the software to determine the nature of the error, or
begin the run again.
Turn on the lamps and allow 1.5 hours for warm-up.
Surveyor UV/Vis Plus Detector Hardware Manual
4
Troubleshooting
Detector-Related Problems
"Lamp
on page 20.
on
47