Troubleshooting - Accu-Scope 3019 Manual

TROUBLESHOOTING

Under certain conditions, performance of this unit may be adversely affected by factors other than defects. If a
problem occurs, please review the following list and take remedial action as needed. If you cannot solve the
problem after checking the entire list, please contact your local dealer for assistance.
Optics
PROBLEM
Although the mercury lamp
illumination is on, the field of
view is invisible or dark.
Visibility is poor. Image is
not sharp. Contrast is poor.
The edge of the field of view
is obscured or not evenly
illuminated
Shadow exists in the field of
view
Electrical System
The main switch cannot
supply power to the system
The main switch can be set
to ON but the burner doesn't
ignite
The mercury lamp flickers or
the brightness is low
®
ACCU-SCOPE
3019 FLUORESCENCE MICROSCOPE SYSTEM
CAUSE
The light shutter closes the light path
The ND filter is engaged in the light path.
The fluorescence mirror block is
improperly engaged in the light path
The aperture iris diaphragm and field iris
diaphragm are not open enough
The objective or filter is dirty
The aperture iris diaphragm and field iris
diaphragm are adjusted improperly
The fluorescence mirror block is not
proper for the specimen
The objective is improperly engaged in
the light path
The fluorescence mirror block is
improperly engaged in the light path
The field of view doesn't open fully
ND filter is stopped in halfway in the light
path
The mercury lamp is not centered.
The collector focus position is not correct
The burner or collector is dusty or stained
The power cord is connected improperly
A fuse is blown
The lamp housing connecting cord is
connected improperly
The mercury lamp is not mounted
The auto ignition system is
malfunctioning
The phenomenon is observed in a short
period after ignition
The lamp life has expired
73 Mall Drive, Commack, NY 11725 • 631-864-1000 • www.accu-scope.com
SOLUTION
Switch the light shutter to "O" open
position
Pull out ND filter to open the position
Engage it properly
Open the aperture iris diaphragm fully;
adjust the field iris diaphragm to
circumscribes the field of view
Clean them thoroughly
Open these iris diaphragms fully
Use proper mirror block
Make sure the nosepiece clicks properly
into place
Engage it properly in the light path
Open it fully
Pull in the filter slider until it clicks into
place
Center it
Adjust it to an optimum position
Clean them thoroughly
Connect it properly
Replace the fuses
Connect it properly to the connectors
Attach a mercury lamp
Set the main switch of the power
supply unit to OFF then on again.
(Repeated ON-OFF is possible in this
case)
Wait for 10 minutes or more after ignition
Replace the mercury lamp
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