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7
Troubleshooting
Troubleshooting Tips
Contact Closure Problems
Table 12. Contact closure troubleshooting tips
Symptom
The mass spectrometer is
waiting for a contact closure
signal.
The EASY-nLC instrument
is waiting for a ready signal
from the mass spectrometer.
Instrument Startup Problems
Table 13. Startup troubleshooting tips
Symptom
Dark monitor
(Check if the power
cable is connected to
the instruments as well
as to a working power
plug.)
Startup bar is no longer
proceeding.
132
EASY-nLC 1200 Troubleshooting & Maintenance Guide
Table 12
contains troubleshooting tips for contact closure problems.
Possible causes
Incorrect contact closure
setup
Table 13
contains troubleshooting tips for instrument startup problems.
Possible causes
Broken or open main
power fuse
Defective monitor
Damaged instrument
Action
If you are running two-way contact closure (with
feedback from the mass spectrometer), set the contact
closure Protocol setting to Two-way on the
Configuration > Connections page.
If the mass spectrometer is waiting for a signal, set the
contact closure State setting to Open.
If you are running one-way contact closure (that is,
the EASY-nLC instrument sends a start signal to the
mass spectrometer, but feedback from the mass
spectrometer is ignored), set the contact closure
Protocol setting to One-way on the Configuration >
Connections page.
Action
1. Turn on the power to the instrument.
2. Remove the right side panel of the EASY-nLC instrument.
3. If there is no light on the pumps, turn off the EASY-nLC
instrument, replace the right side panel, and check the fuse.
Attach an external monitor to the VGA connector (labeled
MONITOR) on the back panel of the instrument (see
page
16).
Turn off the EASY-nLC instrument, wait 5 seconds before turning
it on again, and then wait approximately 10 minutes for the
restart process to finish. In some cases this recovers the system.
Contact Thermo Fisher Scientific if the problem recurs:
• us.customer-support.analyze@thermofisher.com
• eu.techsupport.cms@thermofisher.com
Figure
on
Thermo Scientific
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Troubleshooting
