Thermo Scientific Surveyor UV Plus, Руководство по оборудованию

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