B-190TBPL+ features a revolutionary focusing system based on unique digital control unit.
There is a single adjustment knob located on the left side of the instrument.
The knob controls the focus, which has three different resolutions:
– Macro, 250mm per step (7500mm each knob revolution)
– Semi-Micro, 8mm per step (240mm each knob revolution)
– Micro, 1mm per step (30mm each knob revolution)
The selection of the three resolutions is done simply by pressing the knob itself.
Repeated operations cyclically switch the type of focus in following order:
Macro → Semi-Micro → Micro, then back to Macro and so on.
On the basis of chosen resolution, three specific LEDs located on the instrument’s front side illumininate:
This revolutionary system stores the last focus point to facilitate and speed up routine operations that normally cost the operator time and effort:
1. Easy immersion oil laying operation
The last focusing point (height of stage) is automatically stored by the digital processor unit.
This feature is really useful in case of oil immersion objectives use.
The procedure is very simple and it permits to switch from 40x to 100 objective with an ease never achieved before:
– focus the 40x objective. Its focusing point is automatically stored by the system;
– push the focusing knob for 2 seconds; the stage reaches its lower position, allowing you to easily
put a drop of oil on the sample;
– put a drop of oil on the sample and switch from 40x to 100x objective;
– push once again the dedicated button; the stage rises reaching the stored fucus position;
– adjust the micrometric focus.
2. Ergonomic slide changing operation
By following above mentioned procedure, it is possible to significantly save time when you change slides:
– focus the objective. Its focusing point is automatically stored by the system;
– push the dedicated botton located on the microscope body; the stage reaches its lower position, allowing you to easily change the sample;
– change slide;
– push once again the dedicated button; the stage rises reaching the stored fucus position;
– adjust the micrometric focus.
