User manual LEICA DM750 P

[. . . ] Leica DM750 P Manual Chapter overview Safety regulations The Leica DM750 P Get Ready!Care of the Microscope Dimensions 4 15 18 24 36 38 42 Leica DM750 P Manual 2 Contents Safety regulations Safety concept Symbols used in this operating manual Important Notes Instructions on use Health risks and dangers of use Information for the person responsible for the instrument Care instructions Accessories, maintenance and repair Electrical data and ambient conditions The Leica DM750 P Introduction Unpacking Get Ready!Attaching Analyzer Module or Analyzer/ Bertrand Lens Module Viewing Tube Installing Objectives Substage Condenser 4 5 6 7 8 10 11 12 13 14 15 16 17 18 19 20 21 22 Get Set!Basic setup Using the Aperture Condenser Setting up Polarized Light Focusing Viewing Tube Adjustment Koehler Set up Objective Centration Bertrand Lens Operation Time Delay Shutoff Go! [. . . ] If you wear eyeglasses for microscope viewing, keep the rubber eyeguards folded down. If you do not wear eyeglasses, you may find it useful to unfold the rubber eyeguards in order to block out ambient room light. 2. Align the shape of the polarizing viewing tube with the shape of the module. Insert the dovetail of the polarizing viewing tube into the module and tighten the set screw firmly without forcing it. This precisely positions the body onto the optical axis of the microscope. the raised feature on the eyepiece aligns and is seated with the orientation slot in the right eyetube. Insert the eyepieces into the eyetubes. reticle into the right eyetube so that Install the eyepiece with the crossline Leica DM750 P Manual 20 Installing Objectives objectives are already installed on the nosepiece and the substage condenser is already installed on the stand. If you purchased your Leica DM750 P by components and not by standard configuration, please continue in this section. scope configuration, you will notice the If you have purchased a standard micro- 1. As you rotate the nosepiece clockwise, attach the objectives by screwing them into the nosepiece holes starting with the lowest magnification and advancing to the highest magnification. · the knurled nosepiece ring. Always rotate the nosepiece by using Leica DM750 P Manual 21 Substage Condenser Substage Condenser The Leica DM750 P has an open substage condenser mount. Adjust the condenser mount to its lowest position using the condenser focus knob on the left-hand side of the substage. Swing the polarizer, which is connected to the bottom of the condenser mount, to the left. 1. Raise the stage to its highest position using the coarse focus knob on the right side of the microscope. Leica DM750 P Manual 22 Substage Condenser (cont. ) 4. Raise the condenser to its highest position using the condenser focus on the left-hand side of the substage 7. Tighten the thumbscrews to roughly center the substage condenser so that the top lens of the condenser is centered beneath the objective in use. You will more accurately center and focus the condenser when you reach section Koehler Setup. 5. Slide the substage condenser into the fork mount located underneath the stage by aligning the positioning pin on the condenser into the slot on the back of the fork. Leica DM750 P Manual 23 Get Set! Leica DM750 P Manual 24 Basic setup base. Never use an adapter between the power cord and the power source; it will render the grounding feature ineffective. has been grounded to the microscope As a safety precaution, the power cord 2. Plug the microscope power cord into a suitable grounded electrical outlet. Set the illumination control (knob is located on the bottom left-hand side of the microscope stand) to the lowest setting to start. The illumination control knob allows you to adjust the intensity of light produced by the illumination system. 4. Turn on the microscope using the switch on the bottom right-hand side of the microscope stand. Work Surface Always use your microscope on a hard, stable surface. · Power 1. If the power cord is not already attached, attach it securely to the back of the microscope. Leica DM750 P Manual 25 Using the Aperture Condenser match the effective numerical aperture of the objective. To open and close this diaphragm, simply rotate the knurled condenser ring to the right or to the left so that the line on the rotating ring aligns with the objective magnification in use. [. . . ] If you have an Analyzer/Bertrand Lens with a focusable Bertrand Lens, you can now turn the knob on the upper rocker to focus the Bertrand Lens image. Leica DM750 P Manual 34 Time Delay Shutoff automatically turns the illumination off after 2 hours of no changes in the intensity control. a time delay shutoff capability, which The Leica DM 750 P is equipped with Changing the status of the time delay shutoff The LED Illumination will flash to indicate the time delay shutoff status was changed. The LED Illumination will flash two times slowly then stay on when you disable the Time Delay Shutoff. The LED Illumination will flash three times quickly then stay on when you enable the Time Delay Shutoff. The time delay shutoff IS enabled as a default. 1. Rotate the intensity control to full high intensity, then back to full low intensity all within 5 seconds. be in the last Time Delay Shutoff status (Enabled or Disabled) and you will not see any blinking. turn the power on again, the system will When you turn the power off and then Leica DM750 P Manual 35 Go! Leica DM750 P Manual 36 Ready! [. . . ]