7
B. Replace batteries: Your microscope includes 3 rechargeable AA nickel metal hydride batteries.
These may be recharged up to 500 times, but if you observe that a recharge is providing
significantly less than 40 hours of operation it is probably time to replace batteries.
a) Gently lay microscope on its side. Remove four rubber feet that secure cover plate to base
and carefully move plate to the side (Do not place excessive stress on USB cable assembly).
Using a small Phillips screwdriver, carefully remove Phillips screw that holds battery case
together. Slide lid of case straight out to remove and expose batteries. Remove all 3
batteries and replace with new rechargeable AA nickel hydride batteries, making certain with
correct polarity according to markings on battery holder. Replace battery case lid, Philips
screw, cover plate and 4 rubber feet.
b) IMPORTANT WARNING: DO NOT USE REGULAR ALKALINE BATTERIES IN THIS
MICROSCOPE. ANY ATTEMPT TO RECHARGE ALKALINE TYPE BATTERIES COULD
RESULT IN BATTERIES EXPLODING.
c) Follow instruction on new battery packaging to determine if they are already charged, or if
they should be charged before initial use. If recharging is required follow directions in “3. A.”
above.
C. Replacing LED lamp element: A LED “lamp” will last up to 50,000 hours, so you don’t have to do
this exercise very often.
a) Using hex wrench supplied with your microscope, loosen two hex socket set screws located
on the lower part of illuminator field lens housing. Remove field lens housing to expose LED
“lamp” Remove lamp by grasping the plastic base of bulb and gently pull straight up. Insert
new LED “lamp” (Note lamp has a base designed to properly orientate this LED element in
socket)
b) Replace illuminator field lens housing and tighten the two hex socket set screws.
TROUBLESHOOTING
PROBLEM
REASON FOR PROBLEM
SOLUTION
Light fails to operate.
Batteries fully discharged.
Recharge batteries.
Batteries fully discharged and will
not recharge.
Light switch in OFF position
Replace batteries of replace
charger.
Turn light switch to ON position
12 volt DC output plug not
plugged into DC power jack.
Plug 12-volt DC output plug into
DC power jack.
Lamp burned out.
Replace lamp.
Image does not focus
Slide upside down.
Slide cover slip too thick.
Place slide on stage with cover
slip up.
Use 0.17mm thick cover slip
(No. 1 cover slip)
Poor resolution
(Image not sharp)
Objective lenses dirty
Eyepiece lens dirty.
Too much light
Clean objective lenses.
Clean eyepiece lenses.
Turn rheostat to decrease light
intensity.
Spots in field of view.
Eyepiece or condenser lens dirty.
Specimen slide dirty
Clean lens ***
Clean slide.
***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.
