7
Troubleshooting
Detector-Related Problems
100
Surveyor PDA Plus Detector Hardware Manual
Thermo Scientific
6. Detector does not
power up.
a. Tripped circuit breaker at power outlet.
a. Resolve the problem and reset the circuit
breaker.
b. Blown detector fuse.
b. Resolve the problem and replace the
fuse.
c.
Incorrect voltage selected.
c.
Verify that the voltage selector is set for
the correct incoming line-voltage. (See
d. Power cord not connected.
d. Connect the power cord.
7. Detector does not
go into run upon
injection.
a. Detector not receiving Start signal.
a. Check the connection to the Run
contacts on the back panel.
8. Flat baseline,
portion of
spectrum missing.
a. Saturation of photodiode array.
a. Adjust the attenuators.
9. LED1 - Power
a. Green - power on.
a. No action is required.
10. LED2 - Comm
a. Green - communications normal.
a. No action is required.
b. Amber - no communications with
PC system.
b. Check the Ethernet connections and
module configuration in the software,
and then reload the firmware.
c.
Blinking Amber - firmware download in
process.
c.
Complete the download and reestablish
communications with the PC.
11. LED3 - Run
a. Flashing Green - run in progress.
a. No action is required.
b. Green - Ethernet communications have
not been established or PDA is
connected and ready to accept
commands.
b. Establish Ethernet communications or
begin a run if the unit is ready.
c.
Amber - an error has occurred while
performing a run.
c.
See software to determine the nature of
the error, or begin the run again.
12. LED4 - Lamps
a. Green - one or both lamps are on.
a. No action is required.
b. Amber - both lamps are off.
b. Turn on the lamps and allow 1.5 hours
for them to warm up.
Table 3.
Troubleshooting detector-related problems (Sheet 4 of 4)
Symptom
Cause
Remedy
