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Manufacturer
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Leica
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Model
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CM1950
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Ref. No.
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14047742465
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Serial No.
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9219
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Mfg. date
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2020 - 06
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Power rating
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120V~, 60Hz
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Power consumption
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1500VA
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Overall size of device, without handwheel (W x D x H)
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27.6 x 33.5 x 47.8 in (70 x 85 x 121.5 cm)
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Overall size of device, with handwheel (W x D x H)
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32.9 x 33.5 x 47.8 in (83.5 x 85 x 121.5 cm)
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Working height (armrest)
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40.4 in (102.5 cm)
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Empty weight (without accessories)
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320-425.5 lb (145-193 kg) depending on configuration
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Microtome
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Type
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Rotary microtome, encapsulated
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Section thickness range
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1 to 100 um
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Trimming range
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Clinic: 10 - 40 um
Research: 1 - 600 um
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Total specimen feed
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25 mm + 1 mm
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Vertical stroke
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59 mm +/- 0.5 mm
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Specimen retraction
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20um (can be deactivated)
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Maximum specimen size
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50 x 80 mm
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Cutting speed
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Slow: 0-50 strokes/min
Fast: 0-85 strokes/min
Vmax: 85-90 strokes/min
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Specimen orientation
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8° (x, y-axis)
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Electric coarse feed
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Slow: 300 um/s
Fast: 900 um/s
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UVC Lamp
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Manual start
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Yes
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Automatic start
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No
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Manual abort
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Yes
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Duration cycle
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Short cycle: 30 min
Long cycle: 180 min
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Environmental Specification
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Operating altitude
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Max. 2000 m above sea level
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Operating temperature
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+18°C to +35°C
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Relative humidity (operation)
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20 to 60% RH non-condensing
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Transport temperature
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-29°C to +50°C
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Storage temperature
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+5°C to +50°C
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Relative humidity (transport / storage)
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10 to 85% RH non-condensing
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Minimum distance to walls
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Back: 150 mm
Right: 300 mm
Left: 150 mm
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Refrigeration System
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Cryochamber
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Temperature range
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0°C to -35°C +/-5 K, adjustable in 1 K increments at ambient temperature of 20°C
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Cool down time to -25°C at starting point and ambient temperature of 20°C
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approx. 5 hours
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Cool down time to -35°C at starting point and ambient temperature of 20°C
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approx. 8 hours
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Max. operating pressure
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25 bar
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Refrigerant
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320 g, refrigerant R-452A
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Defrosting
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Hot gas defrosting
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Manual defrosting
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Yes
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Automatic defrosting
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Programmable
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Yes (hot gas defrost), selectable time
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Defrosting intervals
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1 defrost in 24 h or manual hot gas defrost
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Defrost time
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12 minutes
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Automatic shutoff defrost
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At chamber temperature of more than -5°C
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Object head cooling
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Optional feature included in model number
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At 120V/60Hz: 14047742464, 14047742465, 14047742466, 14047742467
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Temperature range
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-10 to -50°C ±3K
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Refrigerant and quantity
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At 120V/60Hz: 147 g, refrigerant R-452A
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Max. operating pressure
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25 bar
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Defrosting object head cooling
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Defrosting
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Electrical heater
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Automatic defrosting
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No
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Manual defrosting
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Yes
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Defrost duration
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15 min.
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Defrost temperature
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45°C ±2K
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Quick-freeze shelf
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Lowest temperature
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-42°C (±5K), at chamber temp. -35°C (+5K)
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Number of freezing stations
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15+2
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Defrosting
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Manual hot gas defrost
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Peltier element
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Max. difference in temperature to quick-freeze shelf
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-17 K, at chamber temperature of -35°C +5K
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Number of freezing stations
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2
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