Graham Field BR3088F series Instruction Manual

GRAHAM FIELD, INC.

2935 Northeast Parkway

Atlanta, GA 30360

www.grahamfield.com

BR3088F MICROSCOPE SERIES

INSTRUCTION MANUAL

GRAHAM FIELD

2935 Northeast Parkway • Atlanta, GA 30360 • PH: [phone]

INTRODUCTION TO THE Bristoline



3088F MICROSCOPE SERIES

1.0 INTRODUCTION

Congratulations on the purchase of your new Bristoline microscope. BRISTOLINE microscopes are engineered and
manufactured to the highest quality standards. Your BRISTOLINE microscope will last a lifetime if used and
maintained properly. From schools to technical institutes, hobbyists to home schooling, BRISTOLINE’s 3088F
microscope series has applications wherever clinical specimen viewing is needed.

2.0 UNPACKING

Your microscope arrived packed in a molded styrofoam container. Do not discard the styrofoam container; the
styrofoam container should be retained for reshipment of your microscope if needed. Avoid placing the microscope
in dusty, high temperature or humid areas as mold and mildew may form.

Carefully remove the microscope from the styrofoam container by its arm and base. Place the microscope on a flat,
vibration free surface. Now check the components against the following standard equipment list:

1. Stand, which includes the supporting arm, focusing mechanism, stage, nosepiece, disc or iris
diaphragm, cord hanger, and illumination system.

2. Monocular or teaching head (depending on model ordered).

3. Eyepiece and objectives as ordered.

4. Dust cover.

3.0 ASSEMBLY

3.1 OBJECTIVES

The objectives were pre-installed by our factory technicians prior to delivery. Always rotate the nosepiece by
turning the objectives clockwise.

3.2 VIEWING HEAD, EYEPIECES, CONDENSER AND DIAPHRAGM

The above items were all pre-installed at our assembly facility in New York prior to delivery.

3.3 VOLTAGE CHECK

Confirm that the input voltage indication at the rear or bottom of the microscope corresponds to your line voltage.
The use of a different input voltage indication will cause severe damage to your microscope.

4.0 OPERATION

Plug the 3-prong line cord into a grounded 120v A.C. electrical outlet. Turn the illuminator switch to “ON.”

4.1 FOCUSING
Turn the coarse adjustment knob counterclockwise this will lower the stage. Place a specimen slide on the center of
the stage. Using the 4x objective bring the specimen into focus using the coarse and fine controls. Different
objectives can be brought into view by revolving the nosepiece and using the fine adjustment knob because the
objectives are parfocal. Each BRISTOLINE 3088F microscope is supplied with either a disc or iris diaphragm,
depending on the model ordered. The amount of light can be adjusted by opening or closing the iris diaphragm or
by turning the disc diaphragm. Adjust the diaphragm to the smallest size allowable for a clear, sharp image of the
specimen.