8
TROUBLESHOOTING
PROBLEM
REASON FOR PROBLEM
SOLUTION
Light fails to operate.
Batteries fully discharged.
Recharge batteries.
Rheostat control not turned far
enough.
Turn rheostat to increase light
Intensity.
Light switch in “off” position.
Turn light switch “on”.
LED “bulb” burned out.
Replace LED “bulb”.
Image does not remain in focus
Stage of microscope drops from
its own weight.
Adjust tension control.
Image will not focus
Rack stop not set at proper
position.
Adjust rack stop.
Slide upside down.
Place slide on stage with cover
slip up.
Slide cover slip too thick.
Use 0.17mm thick cover slip
(No.1 cover slip)
Poor resolution
(image not sharp)
Objective lenses dirty.
Clean objective lenses.
Eyepiece lens dirty.
Clean eyepiece lenses.
Too much light.
Adjust diaphragm.
Spots in field of view.
Eyepiece or condenser lens dirty. Clean lens. ***
Specimen slide dirty.
Clean slide.
No WiFi signal
No power to the camera.
Make sure blue LED is solid
Make sure camera power
adapter is plugged in.
Make sure the USB plug is
seated properly in the head and
power adapter.
Cannot connect to WiFi camera
Password entered incorrectly.
IP address entered incorrectly.
Default Password: 12345678.
Default IP: 192.168.1.151:8080.
***Spots in field of view can also result from dirt on inside of eyepiece. It is recommended that you have
service technician clean inside of lens.
OPTIONAL ACCESSORIES AND PARTS:
#800-001
Replacement LED light
#802-003
Auto cut-off recharger for rechargeable LED microscope
#951
Dustcover, 16” tall x 13”, heavy vinyl with stitched seams.
WARRANTY
Please see our website,
www.nationaloptical.com
, for complete warranty details and exclusions.
