3019 FLUORESCENCE MICROSCOPE SYSTEM
ACCU-SCOPE
®
73 Mall Drive, Commack, NY 11725 • 631-864-1000 • www.accu-scope.com
18
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
CAUSE
SOLUTION
Although the mercury lamp
illumination is on, the field of
view is invisible or dark.
The light shutter closes the light path
Switch the light shutter to “O” open
position
The ND filter is engaged in the light path.
Pull out ND filter to open the position
The fluorescence mirror block is
improperly engaged in the light path
Engage it properly
The aperture iris diaphragm and field iris
diaphragm are not open enough
Open the aperture iris diaphragm fully;
adjust the field iris diaphragm to
circumscribes the field of view
Visibility is poor. Image is
not sharp. Contrast is poor.
The objective or filter is dirty
Clean them thoroughly
The aperture iris diaphragm and field iris
diaphragm are adjusted improperly
Open these iris diaphragms fully
The fluorescence mirror block is not
proper for the specimen
Use proper mirror block
The edge of the field of view
is obscured or not evenly
illuminated
The objective is improperly engaged in
the light path
Make sure the nosepiece clicks properly
into place
The fluorescence mirror block is
improperly engaged in the light path
Engage it properly in the light path
The field of view doesn’t open fully
Open it fully
ND filter is stopped in halfway in the light
path
Pull in the filter slider until it clicks into
place
The mercury lamp is not centered.
Center it
The collector focus position is not correct
Adjust it to an optimum position
Shadow exists in the field of
view
The burner or collector is dusty or stained
Clean them thoroughly
Electrical System
The main switch cannot
supply power to the system
The power cord is connected improperly
Connect it properly
A fuse is blown
Replace the fuses
The main switch can be set
to ON but the burner doesn’t
ignite
The lamp housing connecting cord is
connected improperly
Connect it properly to the connectors
The mercury lamp is not mounted
Attach a mercury lamp
The auto ignition system is
malfunctioning
Set the main switch of the power
supply unit to OFF then on again.
(Repeated ON-OFF is possible in this
case)
The mercury lamp flickers or
the brightness is low
The phenomenon is observed in a short
period after ignition
Wait for 10 minutes or more after ignition
The lamp life has expired
Replace the mercury lamp
