ZEISS
APPENDIX
Stereo microscope
Troubleshooting
Stemi 508
38
435064-7044-010
06/2015
Engl
ish
6.2
Troubleshooting
Description of fault
Cause of error
Troubleshooting
Stereo microscope illumination
cannot be switched ON.
Power supply interrupted.
Power switch not switched ON
Check or establish connection to
power supply. Switch power switch
on back of stereo microscope ON.
Power unit faulty.
Replacing the power unit, see
Section
Vertical reflected-light illumination is
not lit.
Power supply cable RJ 12 not
plugged in.
Insert RJ plug correctly, see
Section
Additional reflected-light
illuminators are not lit.
Power supply cable RJ 12 not
plugged in.
Reflected light not switched ON or
dimmed.
Insert RJ plug correctly, see
Section
3.2 or
21
Press and turn knob Fig. 17/
1
several
times to switch reflected light ON
and to increase its intensity; see
Section
Transmitted-light illuminator does
not light up
Transmitted light not switched ON
or dimmed.
Press and turn rotary / push-button
Fig. 20/
2
to switch illumination ON
and to increase its intensity; see
Section
Transmitted light not connected.
Open stand K EDU or K LAB and
connect the plug-in connectors of
the LED illumination according to
Section
Transmitted-light illuminator dirty or
control lever cannot be actuated.
Liquids or foreign matter in the
transmitted-light unit.
Open and clean stand K EDU or
K LAB and/or eliminate foreign
matter according to Section
and
Microscope mount moves down by
itself.
Focusing drive too easy to move.
Set ease of motion of the focusing
drive, see Section
Should any other faults occur or should you have queries regarding troubleshooting, please contact your
regional ZEISS representative.
Summary of Contents for Stemi 508
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