Leica dm750 p manual ϘϘ It is very important to avoid the excessive, Around the lens

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General maintenance (cont.)

ϘϘ Keeping all optical components clean is important for maintaining good optical performance.

ϘϘ The microscope should always be covered with the plastic dust cover (provided with the instrument) when it is not in use.

ϘϘ If any optical surface becomes coated with dust or dirt, clean the surface by blowing it off with a syringe or brushing it off with a camel hair brush before attempting to wipe the surface clean.

ϘϘ Optical surfaces should be cleaned with a lint-free cloth, lens tissue or a cotton swab moistened with methanol or commercially available glass cleaner. Do not use alcohol.

ϘϘ It is very important to avoid the excessive		concave front lens of fairly short radius or
use of solvent, so use them sparingly. The		curvature. The surface of this front lens can
lint-free cloth, lens tissue or cotton swab		be readily cleaned with a toothpick covered
should be moistened with solvent, but		with a cotton tip, or with a small cotton
not be wet enough for the solvent to seep		swab. Moisten the cotton with metha-
around the lens.		nol and squeeze it almost dry. Wipe the
		front lens lightly without applying undue
ϘϘ No part of the microscope is quite so vulner-		force or scrubbing action. Make sure that
able to collecting dirt, dust, and oil as the		the cotton tip contacts the concave lens
front lens of the objective. Whenever you		surface. Check the objective with a magni-
encounter lack of contrast, cloudiness or		fier after cleaning.
poor definition, carefully check the condi-
tion of the front lens with a magnifier.		ϘϘ If you need to remove the microscope’s
		viewing body, be careful not to accidentally
ϘϘ The lower	magnification objectives have	touch the outer lens surface (located on
fairly large front lenses and can be cleaned		the underside of the body). Fingerprints on
with a cloth or lens tissue wrapped around		this surface will reduce image clarity. This
a finger and	moistened with methanol. Do	lens can be cleaned in the same manner as
not use alcohol.		objectives and eyepieces.

ϘϘ Cleaning 40× and 100× objectives requires more care. Note: To achieve the high degree of flatness obtained with the higher magni- fication objectives, the objective has a small

Leica DM750 P	Manual	40

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Contents Leica DM750 P Manual Chapter overview Contents Safety regulations Safety concept Symbols used in this operating manual Light bulbsImportant information Provide clarityImportant Notes DescriptionContact address EC Declaration of ConformityInstructions on use Intended usePlace of use Non-intended useTo any warranty claims TransportDisposal Integration in third-party productsHealth risks and dangers of use Health risksViral infections of the eye Vidual or detachable eyecupsInformation for the person responsible for the instrument Information for the person responsible for the instrumentCleaning coated parts and plastic parts Cleaning glass surfacesCare instructions General instructionsAccessories, maintenance and repair AccessoriesMaintenance Repairs and service workFuse Replacement Electrical dataInput 100-240 V, 50/60 Hz, 5 W 3 W LED EnvironmentLeica DM750 P Introduction Check the components against the planned configuration UnpackingGet Ready Attaching Analyzer Module or Analyzer/Bertrand Lens Module Tools usedViewing Tube Installing Objectives Substage Condenser Substage CondenserCompletely loosen the two thumbscrews on the condenser mount Get Set Power Basic setupWork Surface Using the Aperture Condenser ObjectiveSubstage condenser in a swing in/out Setting up Polarized LightPolarizer Analyzer into position Focusing FocusingViewing Tube Adjustment Slot of the right eyetubeEyepiece. Do not raise or lower the stage to focus Slightly, if at allKoehler Set up Koehler Set upϘϘ Centering keys Objective CentrationFocus the polarizing sample Modules Image through the eyepieces Bertrand Lens OperationYou can now view the conoscopic image through the eyepieces Changing the status of the time delay shutoff Time Delay ShutoffOr Disabled and you will not see any blinking Leica DM750 P Manual Ready! Set! Go Care of the Microscope General maintenance GeneralHands. There is a handle on the back Is extended This purpose For two compensators in the rearLint-free cloth, lens tissue or cotton swab ϘϘ It is very important to avoid the excessiveShould be moistened with solvent, but Around the lensMechanical Maintenance Mechanical MaintenanceDimensions Leica DM750 P Manual Leica DM750 P Manual Leica DM750 P Manual