Buchi UV-Vis Detector C-640 Manual de usuario Pagina 37
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7 Troubleshooting
37 C-640 Operation Manual, Version A
7 Troubleshooting
Problem Caused by / Conditions Solution
After switching the unit on no LED on
the front panel is lit.
Failure of the power line fuse. Check the fuse.
(The fuse is integrated in the main
power connector on the backside of
the instrument.)
Electronics failure. Call service center.
Increased noise and drift. Leaking cell, dirty cell, bubbles,
non-transparent mobile phase, old or
bad lamp.
Perform Cell test with lamp test
included.
Check cell connections.
Check mobile phase.
Check cell purity manually.
Install pressure regulator.
Electronics / Optics failure. Call service center.
Leaking cell. Broken window, or leaking seal. Repair or replace the cell - see
chapter 6.3 “Cleaning and replace-
ment of cell windows”.
Warning or error message. - See next two sub-chapters. Try
resetting the error. If resetting does
not solve the problem, call the
service center.
After switching the unit on the
display is not working and the red
LED (ERROR) blinks.
Display electronics / power supply
failure.
Call service center.
7.1 Internal display error codes
Any failure in conjunction with the internal communication of the detector or its display electronics is
considered as internal error. Any time an internal error occurs the red ERROR LED blinks.
Code Meaning Repair
01h Power is down! Call service center.
02h Non-volatile memory failure! Call service center.
04h Digital-analog converter failure! Call service center.
08h Display failure! Call service center.
10h Detector communication failure! Call service center.
20h Detector communication timeout! Call service center.
40h Interface device failure! Call service center.
- UV-Vis Detector 1
- Table of contents 3
- 1 About this manual 5
- 2 Safety 6
- SIGNAL WORD 7
- 2.5 Product safety 9
- 2.6 General safety rules 10
- 3 Technical data 11
- Product Order no 12
- 3.2 Optional accessories 13
- 3.3 Recommended spare parts 13
- 3.4 Technical specifications 14
- 3.6 Light sources 15
- 3.7 Signals and parameters 16
- 4 Description of function 18
- 4.3 The cell compartment 20
- 4.3.1 Removing the cell 21
- 4.3.2 Mounting the cell 22
- 5 Putting into operation 23
- 5.3 Starting the detector 26
- 5.4 Controlling the detector 27
- 5.5 Parameter setup 28
- 6 Maintenance and repairs 32
- 7 Troubleshooting 37
- 7.2 Hardware error codes 38
- 8.1 Storage and transport 39
- 8.2 Disposal 39
- Labortechnik AG 44
- Flawil 1 / Switzerland 44
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