Olympus BX61 Manuel d'instructions - Page 27

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Problem

e) Visibility is poor.

· Image is not sharp.

· Contrast is poor.

· Details are indistinct.

· Image glares.

f ) One side of image is blurred.

g) Image appears to waver.

h) Field of view becomes only slightly

brighter when the voltage is raised.

2. Electrical System

a) Bulb intermittently lights and goes

out.

b) Bulb burns out almost immediately. Wrong type of bulb is being used.

c) All voltage indicator LEDs light and

voltage cannot be varied by press-

ing light intensity adjustment but-

ton.

d) Brightness does not change when

you press light intensity adjustment

button.

3. Focusing Block

a) Image cannot be focused.

b) Stage rises too high and destroys

specimen.

Cause

Correction collar on correction collar

equipped objective is not properly ad-

justed.

Front lens of objective is dirty.

Immersion oil is not being used with an

oil immersion objective.

Immersion oil contains bubbles.

Recommended immersion oil is not

used.

Dirt/dust on specimen.

Dirt/dust on condenser

Inappropriate object side or cover glass

thickness.

Revolving nosepiece is not correctly

mounted.

Stage is not correctly mounted.

Objective is not correctly engaged in light

path.

Specimen is not correctly mounted on

stage.

Revolving nosepiece is not corrected

mounted.

Objective is not correctly engaged in

light path.

Condenser is not properly centered.

Condenser is lowered too far.

Bulb is nearly burned out.

A connector is not properly connected.

Bulb is not installed.

Bulb is burned out.

Lamp housing is not connected.

Bulb is burned out.

When adjusting stage height, you forgot

to reattach upper stopper screw.

Substage is not installed properly.

Remedy

While focusing, turn the correction col-

lar to find the best position.

Clean objective.

Use immersion oil.

Remove the bubbles.

Use the provided immersion oil.

Clean it.

Replace with glass of recommended

thickness.

Push slide dovetail all the way until it

is stopped.

Re-attach it.

Make sure that revolving nosepiece

clicks into place correctly.

Place specimen correctly on to of

stage and secure it with slide holder.

Push slide dovetail all the way until it

is stopped.

Make sure that revolving nosepiece

clicks into place correctly.

Center the condenser.

Adjust the condenser height position.

Replace bulb.

Check all connectors.

Use correct bulb type.

Install bulb.

Replace bulb.

Connect lamp housing correctly.

Replace bulb.

Re-attach upper stopper screw.

Re-attach substage.

BX61

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