More persistent dirt, such as fingerprints, grease and oil, may be removed with soft
cotton, lens tissue, or gauze lightly moistened with absolute alcohol (ethyl or methy
alcohol).
To clean immersion oil off the oil-immersion type objective, use lens tissue, soft cotton
or gauze lightly moistened with petroleum benzine only.
Do not use petroleum benzine to clean the entrance lens at the bottom of the eyepiece
tube or prism surfaces inside the eyepiece tube.
Absolute alcohol and petroleum benzine are quite inflammable. Take great care when
handing them and when setting the power switch on and off. Be very careful with fire.
2. Cleaning painted or plastic surfaces
Avoid use of and organic solvents (such as alcohol, ether, thinner, ect.) to clean the
painted or plastic surfaces of the instrument. We recommend the use of silicon cloth.
More persistent dirt may be cleaned with mild detergent solution.
Printed plastic surfaces should be cleaned only by soft cloth moistened with water.
3. When not in use
When the microscope is not in use, cover it up with dust cover, and store in a dry
place not subject to mold.
We especially recommend that the objectives and eyepieces be kept in a container
( such as a desecrator).
4. Periodical inspection
To maintain the performance of the microscope, periodical inspection is recommended.
International Scientific Group
Unit 1, Karoo Close
Bexwell Business Park
Bexwell
Norfolk
PE38 9GA
+44 (0)1366 385777
