Leica Complete Guide to CM3050 S Manual and Cryostat Operations

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5.Operation

4.Quick-freezing at maximum specimen temperature* (instruments with specimen cooling only)

Press key until menu item ‘Fast object freezing’ is displayed:

F

A

S

T

 

O

B

J

 

F

R

E

E

Z

I

N

 

 

 

 

 

 

O

F

F

 

 

 

 

 

 

 

or

F A S T O B J F R E E Z I N

O N

Press lock/unlock key to activate or de- activate (ON/OFF).

5. Real time

Press key until menu item ‘Time’ is dis- played:

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I

M

E

 

 

 

 

 

 

 

1

0

:

2

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Use arrow keys ( or ) to set real time. Setting minutes as well as hours in 1-minute steps. Holding arrow button in- creases scrolling speed!

6. Starting time of automatic defrost cycle:

Press key until menu item ‘Defrost time’ is displayed:

D

E

F

R

 

T

I

M

E

 

 

 

4

:

3

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Time on display = start time of defrost cycle)

Use arrow keys ( or ) to select the de- sired defrost start time.

*) with 90° prism - see also chapter 5.5.2.

The automatic defrost cycle takes place once every 24 hours at the selected defrost time.

7. Duration of defrost cycle:

Press key until menu item ‘Defrost period’ is displayed:

D

E

F

R

O

S

T

 

P

E

R

I

O

D

 

 

C

H

A

M

B

E

R

:

 

 

0

8

 

M

I

N

Use defrost keys ( or ) to adjust de- frost time. (Only if necessary - see below).

Important information for setting the defrost parameters

Starting time of defrost cycle:

We recommend to program the automatic defrost cycle for a time out- side regular working hours as a period of 4 hours should pass after the defrost cycle before work with the instrument is resumed (see also chapter 5.7.1 ‘Automatic chamber defrost cycle’).

Defrost cycle duration:

The duration of the chamber defrost cycle is set to 8 minutes in factory. This setting should only be changed, if the evaporator is not completely de-iced during the 8-minute cycle.

In such cases, increase the defrost cycle duration gradually until the the evaporator is ice-free after defrosting. The selected defrost cycle duration is valid for both automatic and manual chamber defrost cycle.

Leica CM3050 S – Cryostat

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Contents Leica CM3050 S Page Important note Table of Contents Table of Contents EC Declaration of Conformity Important information Symbols used in this manual and their meaningSerial- number Any other use of the instrument is considered improper GeneralDesignated use Qualification of personnelSicherheit Integrated safety devicesUnlocking SafetyLocking the handwheel LockingDeactivating the emergency stop Activating the emergency stop functionKnife guard Electrical connections Site requirementsKnife guard/handwheel lock Defrosting/Handling frozen tissueFrozen parts of the instrument and frozen accessories Handling microtome knives/bladesInfectious/radioactive material Disinfection and cleaningMaintenance 11Removing/reinstalling the microtomeDisplay message ‘Dry microtome’ Repacking InstallationUnpacking and installation General site requirementsStandard delivery Further accessories Inserting the accessories Prior to switching on the instrument Footswitch FunctionModels with footswitch Connecting the footswitchOverview Instrument PropertiesInstrument Properties Technical Data Microtome Rotary microtome Operating the instrument for the first time OperationAutomatic cutout for sectioning motor Switching on/fusesSwitching on Mains switch / automatic cutout for the instrumentActivates / deactivates a number of functions Control panel Key functions in control panelDisplay functions in control panel Lock / unlock keyY M I C R O T O M E 15-minute steps Specimen temperature Instruments with specimen cooling only= Preset counter activated Cryochamber temperaturePreset counter Instruments with sectioning motor only Press key until menu item ‘Preset counter’ is displayedPress lock/unlock key to activate or de- activate ON/OFF Real timeStarting time of automatic defrost cycle Duration of defrost cycleStop Status displayRefrigeration state These parameters can be displayed via the ar- row keysSection thickness Total section thickness counter Instruments with sectioning motor Control panel Instruments without sectioning motorSectioning mode 1 Intermittent stroke Activating a sectioning modeStart / stop motorized sectioning Press sectioning window key once more Emergency stop Coarse feed ‘fast forward’ Travelling speed 1,000 μm/s Functional area B all models Coarse feed keysTo start, press and hold Selecting trimming thickness Setting the section thicknessMotorized trimming Daily operation of the instrument ‘Defrosting Handling frozen tissue’ Chapter‘Knife guard / Handwheel lock’ Chapter See .3.4 ‘Menu functions’ item Installing the 90 prismFreezing specimens with the 90 prism Mobile heat extractorInserting specimen discs into the specimen head ThermoblockSpecimen orientation Insert the knife / disposable blade into the knife holder Trimming / sectioning Inserting the knifeManual trimming SectioningFinishing work 5.6.1 Daily routine steps Switching off the instrument for a longer period of timeLock handwheel Automatic chamber defrost cycle DefrostingInstruments with specimen cooling Manual chamber defrost cycle Troubleshooting, applications tips Remedies Potential problems causes and remedies Problem CausesProblem Causes Luke-warm specimen disc Microtome defective Problem Causes RemediesTissue Reference chart for temperature settings in minus CAllow to soak for 15 minutes Disinfection, cleaning and maintenanceSafety instructions On disinfection and cleaning Spray disinfection with Leica CryofectRemove section waste from the chamber and dispose of it CleaningSwitch the instrument off Disinfection with conventional disinfectants‘Disinfection and cleaning’ Chapter Place plastic coupling 11 on handwheel coupling Reinstalling the microtomeUnlock handwheel Removing the sliding window Installing the replacement lampExchanging the fluorescent light lamp RemovalDecommissioning and disposal Warranty and serviceWarranty Technical service informationSafety instructions Electrohydraulic height adjustmentAppendix Installation Troubleshooting Maintenance and careControl keys Consumables Ordering information accessories Knife holdersAccessories Specimen discsDag Graupner Managing Director EC Declaration of ConformityNB Microtome knives must be in boxes This equipment has been cleaned and decontaminatedDecontamination Certificate master Dear CustomerBU Return Authorisation Number