Service and maintenance
Instruction Manual, Oct-16 12
4.3 Trouble shooting
Replacing fluorescent tubes
White tubes in the base unit:
• Ascertain which tube has failed
• Switch off the instrument and remove the power cord!
• Remove the opaque glass plate from the CAMAG TLC Visualizer 2
• The defective tube can be taken out of the socket by turning (approx. 90
degrees)
• Proceed in the reverse order when fitting the replacement tube
• Reconnect the mains cable and check that all tubes work properly
Tubes in the side reflectors:
• Switch off the instrument and remove the power cord!
• Remove the lower screws and just loosen the upper screw at the front side
plate of the specific side reflector
• Swing the front side plate into the highest upper position
• Pull the filter support carefully out of the guide
• Loosen the defective tube (254nm, 366nm or White) by carefully twisting
it clear of its holder and take it out of the side reflector
• Proceed in the reverse order when fitting the replacement tube
• After replacing the tube insert the filter support back into its guide and
turn the front side plate back. Tighten it (slightly) with the two screws
• Reconnect the mains cable and check that all tubes work properly
Replacing the fuses
• Switch off the instrument and remove the power cord!
• Unlock the fuse holder over the mains socket with the help of a small
screwdriver
• Press it on both sides of the holder into the recess. Now pull out the fuse
holder
• Replace the fuse(s). The label 250 V 1.0 AT (slow blow) is valid over the full
voltage range
• Push the fuse box back in
• Reconnect the power cord
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