Leica RM2245 instruction manual Specimen retraction

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5. Operation

Four-digit display on the instrument

The four-digit display is adjustable.

When the Σ μm LED is lit, the display shows the sum of the section thicknesses in μm for all sec- tions completed since the instrument was switched on.

(Section thickness sum)

When the Σn LED is lit, the display shows the number of all previously completed sections.

Fig. 15

• To change the display mode, push MENU MODE until the LED of the desired mode is illuminated.

• Press CLEAR to reset section thickness sum or section number.

• This will only reset the currently displayed value.

Caution!

When the instrument is switched off using the main power switch, both values (section thickness sum and section number) are erased from memory.

Specimen retraction

To prevent damage to the blade and specimen, the specimen is moved away from the blade during the return motion to the upper home position.

The retraction value can be selected in 5 μm increments between 5 and 100 μm. Specimen retraction is set to 10 μm at the factory.

Specimen retraction can be disabled if required.

The selected setting is maintained when the instrument is turned off.

Leica RM2245

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Contents Leica RM2245 Page Leica Microsystems Nussloch GmbH Table of Contents Table of Contents Important notes Symbols in the text and their meaningsQualification of personnel Intended use of instrumentSafety notes SafetyPersonal safety precautions Safety Integrated safety devices Safety Overview instrument components Instrument components and specificationsLeica RM2245 Rear side of instrument Instrument specificationsDimensions and weight Basic instrument Technical data GeneralControl panel Microtome Standard delivery StartupSetting up the instrument Installation site requirementsElectrical connections Assembling the handwheelChecking the voltage 23 24 Switching on the instrument Operating elements and their functions OperationInstrument control panel Control panel Display and control elements Trimming mode Sectioning modeHow to activate the Step function Specimen retraction Display 4 lights up Mum of 100 μm using the buttons on the control panelIndication of remaining horizontal feed Step function is disabled in the remaining feed rangeObject head To release the clamp, turn the eccentric lever 29 forwards Directional fixture for specimen clampsImportant! Never turn the screw more than 1/2 Turn at a time Inserting the knife holder Inserting the universal cassette clamp Example Enlarged detail showing a clearance angle setting Adjusting the clearance angleClamping the knife / disposable blade Clamping the specimenCutting into the specimen trimming Sectioning Finishing daily routine Changing the specimen or interrupting sectioningAssembly for fixture for specimen clamps Optional accessoriesRigid fixture for specimen clamps Directional fixture for specimen clampsFine-directional fixture for specimen clamps Quick clamping system Standard specimen clamp Specimen clamps and holdersVee insert Foil clamp type Optional accessories Universal cassette clamp, ice-cooled Universal cassette clampSuper mega-cassette clamp Holder for round specimens Optional accessories To clamp the blade, rotate clamping lever 10 back upwards Knife holder E/E-TCOptional accessories Use Knife holder N/NZ Optional accessories Backlighting Section waste trayFreezer pack TrayInstrument Assembling the universal microscope carrier Universal microscope carrierAttach baseplate Attach horizontal arm Magnifying lens Cold light source Fiber-optic light guide Plug the power plug into the power socketOrdering information Optional accessoriesLeica CLS Cold light sourcesFiber-optic light guide Error reports Customized solutionsInstrument malfunctions Problem Possible cause Corrective action Malfunctions, possible causes and troubleshootingPossible faults Cleaning the instrument Cleaning and maintenanceClean using an alcohol-based solution or acetone Cleaning and maintenance Replacing fuses MaintenanceMaintenance instructions Lubricating the instrument Warranty Warranty and serviceWe herewith declare, in exclusive responsibility, that EC Declaration of ConformityDag Graupner Managing Director