Use Of The Microscope; Light Intensity Adjustment; Coarse Focus Tension Adjustment; Coarse Upper Limit Lever - Optika Italy B-510 Serie Manual De Instrucciones

9. Use of the microscope
9.1 Light intensity adjustment
Operate on the light intensity adjustment knob to turn
ON / OFF the microscope and to increase / decrease
the illumination voltage ①. (Fig. 14)
• For B-510MET-R only. There is a three-position
switch on the rear of the stand: position "I" turns
on the transmitted light, position "II" turns on
the reflected light and position "O" turns off the
microscope.
9.2 Coarse focus tension adjustment
• Adjust the tension using the provided tool.
The coarse knob tension is pre-adjusted in the
factory.
To modify the tension according to personal's needs,
rotate the ring ② using the provided tool. (Fig. 15)
Clockwise rotation increases the tension.
If the tension is too loose, the stage could go lower
by itself or the focus easily lost after fine adjustment.
In this case, rotate the knob in order to increase the
tension.
9.3

Coarse upper limit lever

The upper limit knob has two functions: prevents
the contact between slide and objective and acts as
"focus memory".
After focussing the specimen, pull the lever ③ toward
the front of the microscope and lock it. (Fig. 16). In
this way the focus upper limit is set. Now one can
lower the stage with coarse focus knob, replace the
specimen and raise again the stage up to the upper
limit: specimen will be in approximate focus and will
need a fine adjustment to get the proper focus.
Fine focus movement is not affected by the coarse
focus lock.
• To unlock, move the lever in the opposite
direction to the one used for the locking.
9.4

Stage

9.4.1 B-510MET

Stage accepts metallurgical samples with thickness
max 35 mm, placed on a standard support 26 x 76
mm.
• Open the spring arm of the slide holder ④
and place frontally the slides on the stage.
(Fig. 17)
• Gently release the spring arm of the slide
holder.
• A sudden release of the the spring arm could
cause the falling of the slide.
④
Page 15
①
Fig. 14
②
Fig. 15
③
Fig. 16
Fig. 17