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The muffle furnaces L 3/11 - LT 60/12 have been proven for daily laboratory use. These models stand out for their excellent workmanship, advanced and attractive design, and high level of reliability.

Standard Equipment
• Heating from two sides by ceramic heating plates (heating from three sides for muffle furnaces L 24/11 - LT 60/12) for an optimal temperature uniformity
• Temperature uniformity of +/− 5 K with closed fresh-air inlet in empty work space according to DIN 17052-1 at working temperatures above 800 °C
• Thermocouple type S (1200 °C)
• Ceramic heating plates with integral heating element which is safeguarded and easy to replace
• With lift door (LT)
• Dual shell ventilated housing made of textured stainless steel sheets for low surface temperature and high stability
• Exclusive use of insulation materials without categorization according to EC Regulation No 1272/2008 (CLP). This explicitly means that alumino silicate wool, also known as “refractory ceramic fiber” (RCF), which is classified and possibly carcinogenic, is not used.
• Adjustable air inlet integrated in door (see illustration)
• Exhaust air outlet in rear wall of furnace
• Controller with touch operation C550
• Solid state relays provide for lownoise operation

Option
• Chimney, chimney with fan or catalytic converter (not for L 1 and L 15)
• Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
• Protective gas connection to purge with non-flammable process gases (not available in combination with chimney, chimney with fan or catalytic converter) not gas tight
• Manual or automatic gas supply system
• Port for thermocouple in the rear wall or in the furnace door

Laboratory refrigerators and freezers are expected to offer the highest level of safety and reliability. The precise electronic control, forced-air cooling system, and highly efficient insulation combine to deliver outstanding energy efficiency, keeping operating costs low while protecting the environment. The advanced components and precise regulation ensure optimal storage conditions for materials over the long term.

Product Features

Simple Operation
User-friendly solutions for daily use

• Built-in handle spanning the full height of the door
• Monochrome, 3-button electronic control interface
• Easy-to-clean stainless steel interior
• The door stays open at an angle greater than 90°
• Flush-mounted internal ceiling LED lighting

Compliance and Documentation
Built-in safety features to protect sensitive materials

• Temperature setting (calibration)
• Recording of minimum/maximum temperature values
The set minimum and maximum internal temperatures are saved by the device and can be easily viewed on the display
• Connectivity via retrofit (LAN or WiFi for BMS or SmartMonitoring system)
• Standard compliance: IEC 60068-3, IEC 61010-2-011

Safety and Reliability
Reliable storage due to consistent cooling performance, even under extreme environmental temperature conditions

• Temperature stability: up to ±3 °C for Refrigerator / ±5 °C for Freezer
• Alarm relay
Alarm signals are transmitted to the monitoring system, ensuring no deviations go unnoticed
• The door automatically closes when opened less than 90°
• Probe access port: 10 mm diameter
• Mechanical door lock
• Long lifespan

Technical Data

• Gross/net capacity: 871/702 liters
• External dimensions (W/D/H): 787/1017/2135 mm
• Internal dimensions (W/D/H): 489/638/1470 mm
• Energy consumption per year: 870 kWh
• Ambient temperature: +10 °C to +35 °C
• Heat emission: 1110 kJ/h
• Refrigerant: R 290
• Noise level: 60 dB(A)
• Frequency / voltage: 50 Hz / 220-240 V~
• Ventilated cooling system
• Automatic defrost
• Temperature range: -9°C to -30°C
• External casing/color: steel / white
• Interior casing: Chrome-nickel steel (1.4301 / AISI 304)
• Door/Cover material: steel
• Network connectivity option: SmartModule / retrofittable
• WLAN/LAN connectivity: optional
• Number of adjustable shelves: 4
• Shelves material: steel with plastic coating
• Usable shelf size (W/D): 480 / 638 mm
• Shelf load capacity: 60 kg
• Castors with arrestor at the front, fixed castors at the rear
• Probe access port: 1 x Ø 12 mm
• Door opening direction: right, reversible
• Gross/net weight: 166/149 kg

For optimum loading of 210 slides.
• Area of application: reprocessing laboratory glassware

Machine affiliation:
G 7825
PG 8527
PG 8535
PG 8536
PLW 8636 [LAB / LAB MON]
PG 8504
PG 8583
PG 8583 CD
PG 8593
PLW 8505
PLW 8604
PLW 8615
PLW 8616
PLW 8617
PLW 8683
PLW 8683 CD
PLW 8693
PLW 6011
PLW 6111
PLW 7111

This chemistry pumping unit has a wide range of applications like evacuation, evaporation and pumping of gases and vapors in chemical, biological and pharmaceutical laboratories. Typical applications are rotary evaporators, vacuum concentrators and vacuum drying ovens with high boiling solvents. The manual flow control valve regulates the effective pumping speed at the vacuum connection; the vacuum manometer offers an analog vacuum display. The separator at the inlet (AK), made of glass with a protective coating, retains particles and liquid droplets. The exhaust waste vapor condenser enables near-100-percent solvent recovery.

Performance features
• outstanding chemical resistance and superior vapor tolerance
• exceptionally high performance even at low vacuum
• excellent ultimate vacuum even with gas ballast
• manual vacuum control, analog vacuum display
• excellent environmental friendliness due to efficient solvent recovery

For optimum loading of 56 half petri dishes.
• Area of application: reprocessing laboratory glassware
• Suitable for 56 half petri dishes with Ø 100 mm
• Equipped with 56 holders, height 70 mm, distance apart approx. 26 mm
• For use in lower basket

Machine affiliation:
G 7825
PG 8527
PG 8535
PG 8536
PLW 8636 [LAB / LAB MON]
PG 8504
PG 8583
PG 8583 CD
PG 8593
PLW 8505
PLW 8604
PLW 8615
PLW 8616
PLW 8617
PLW 8683
PLW 8683 CD
PLW 8693
PLW 6011
PLW 6111
PLW 7111

For optimum loading of 56 half petri dishes.
• Area of application: reprocessing laboratory glassware
• Suitable for 56 half petri dishes with Ø 100 mm
• Equipped with 56 holders, height 70 mm, distance apart approx. 26 mm
• For use in lower basket

Machine affiliation:
G 7825
PG 8527
PG 8535
PG 8536
PLW 8636 [LAB / LAB MON]
PG 8504
PG 8583
PG 8583 CD
PG 8593
PLW 8505
PLW 8604
PLW 8615
PLW 8616
PLW 8617
PLW 8683
PLW 8683 CD
PLW 8693
PLW 6011
PLW 6111
PLW 7111

• Area of application: reprocessing laboratory glassware
• Suitable for test tubes up to 12 x 200 mm
• Divided into 6 surfaces
• Mesh width 9 x 9 mm
• For use in lower basket
• Including lid A 13

Machine affiliation:
G 7825
PG 8527
PG 8535
PG 8536
PLW 8636 [LAB / LAB MON]
PG 8504
PG 8583
PG 8583 CD
PG 8593
PLW 8615
PLW 8616
PLW 8617
PLW 8683
PLW 8683 CD
PLW 8693
PLW 6011
PLW 6111
PLW 7111
PLW 8505
PLW 8604

For the optimum loading of up to 18 beakers.
• Area of application: reprocessing laboratory glassware
• Suitable for 18 glass beakers
• Equipped with 18 x 3 stay bars
• For use in upper and lower basket

Machine affiliation:
G 7825
PG 8527
PG 8535
PG 8536
PLW 8636 [LAB / LAB MON]
PG 8504
PG 8583
PG 8583 CD
PG 8593
PLW 8505
PLW 8604
PLW 8615
PLW 8616
PLW 8617
PLW 8683
PLW 8683 CD
PLW 8693
PLW 6011
PLW 6111
PLW 7111

Laboratory refrigerators and freezers are expected to provide the highest level of safety and reliability. The precise electronic control, forced-air cooling system, and highly efficient insulation ensure exceptional energy efficiency, leading to low operating costs while safeguarding the environment. The advanced components and precise regulation ensure the optimal storage of materials over the long term.

Product Features

Easy Operation
User-friendly solutions for daily use

• Full-height integrated handle
• 2.4” color electronic interface with touch & swipe functionality
• Easy-to-clean stainless steel interior
• Flush-mounted, full-height internal side LED lighting

Safety and Reliability

• Ventilated cooling system
• NoFrost cooling technology
• Temperature range: -9 °C to -35 °C
• Temperature stability: ±5 °C maximum
• VCC variable speed compressor
The variable speed compressors ensure the right performance is always available. This results in reduced energy consumption and improved temperature stability.
• Optical and acoustic alarms in case of failure
• SafetyDevice: prevents the temperature from dropping below +2 °C, avoiding freezing
• PT1000 product temperature sensor
In addition to the built-in control sensor, another temperature sensor is available to measure simulated product temperature. The value measured by the product temperature sensor can also be displayed on the screen. The value can be calibrated, and the device’s alarm thresholds will then be based on this value, ensuring safer storage based on real product temperature values.
• Power failure alarm
In case of a power outage, the built-in battery maintains power for at least twelve hours, activating an immediate audible and visible alarm. Additional indication of the start of the power outage and the maximum temperature reached is also provided.
• LightAlarm
If the internal temperature rises unchecked, the door is left open, or other issues occur, the internal lighting will begin to flash.
• Alarm history: Simple quality control
The last 10 alarms, including key data like date and maximum temperature, are logged for final quality assessment of stored goods.
• Built-in data logger: traceable for years
Complete traceability independent of monitoring systems through logging of the temperature profile, alarm history, and service information for up to 5 years. Stored data can be read via USB port.
• Door automatically closes if opened less than 90°
• Probe access port: 1 x Ø 12 mm
• Electronic locking system: protection against unauthorized access with PIN or remote lock/unlock capability
• SmartLock: automatic door locking in case of temperature alarm, which can only be unlocked by authorized personnel
• Long lifespan

Compliance and Documentation

• Complies with DIN 13277 and IEC 61010-2-011
Liebherr laboratory and pharmaceutical refrigeration units meet all the characteristics and performance criteria necessary for full compliance with the DIN 13277 standard. DIN 13277 specifies requirements and test procedures for refrigeration and freezer equipment used in laboratories and for storing pharmaceuticals.
• IEC 60068-3 standard for temperature distribution and consistency
• IEC 61010-2-011 standard for safety
• Temperature adjustment (calibration)
• Recording of minimum/maximum temperature values
• Integrated connectivity (LAN or WiFi for BMS or SmartMonitoring system)

Technical Specifications

• Gross/net volume: 1391/1091 l
• External dimensions (W/D/H): 1427/867/2135 mm
• Internal dimensions (W/D/H): 1210/638/1470 mm
• White, stainless steel external casing
• Door/Cover material: steel
• Adjustable shelves: 8
• Shelves: plastic-coated grates
• Usable shelf size, mm (W/D): 570 / 788
• Shelf load capacity: 60 kg
• Door opening: right fixed / left fixed
• Castors with arrestor at the front, fixed castors at the rear
• Gross/net weight: 235/210 kg
• Energy consumption/year: 1162 kWh
• Ambient temperature: +10 °C to +35 °C
• Heat emission: 1485 kJ/h
• Refrigerant: R 290
• Noise level: 60 dB(A)
• Frequency / voltage: 50/60 Hz / 220-240 V~a

For optimum loading of 80 test tubes, 16 x 105 mm.
• Area of application: reprocessing laboratory glassware
• Suitable for 80 test tubes up to 16 x 105 mm
• Additionally equipped with a lid
• Mesh width on the base 8 x 8 mm

Machine affiliation:
G 7825
PG 8527
PG 8535
PG 8536
PLW 8636 [LAB / LAB MON]
PG 8504
PG 8583
PG 8583 CD
PG 8593
PLW 8604
PLW 8615
PLW 8616
PLW 8617
PLW 8683
PLW 8683 CD
PLW 8693
PLW 6011
PLW 6111
PLW 7111
PLW 8505

Our PC 600-series chemistry pumping units of this series are an excellent choice for supporting electronically controlled evaporation or drying processes with even many high boiling point solvents. Our popular MD 4C NT three-stage chemistry diaphragm pump, with its 2 mbar ultimate vacuum rating, is the heart of these pumping units. Typical applications include lab applications such as rotary evaporation, vacuum drying ovens, and vacuum distillation.
The integrated VACUU•SELECT controller provides an easy-to-use, application based interface that covers all common lab applications. The VACUU•SELECT controller has you covered. Use manual set-point-control for simple processes, run distillations, or create your own application with simple drag-and-drop editing. For solvent evaporation, it constantly monitors the pressure and switches to 2 point control mode to hold the pressure stable when a boiling point is detected. The controller also allows for easy manual vacuum control for simple processes. The inlet separator, made of glass with protective coating, prevents particles and liquid droplets from entering the pump. The exhaust vapor condenser provides nearly 100% recovery of solvents for economical recycling and environmental protection.

Performance features
• VACUU•SELECT vacuum controller with graphical user interface simplifies work in the laboratory
• predefined applications save time and give reproducible results
• easy-to-use application editor allows own process sequences
• meets high vacuum requirements for most high boiling solvents
• excellent environmental friendliness due to efficient solvent recovery

For optimum loading of up to 44 watch glasses.
• Area of application: reprocessing laboratory glassware
• Suitable for 44 watch glasses Ø 80 - 125 mm
• Equipped with 23 bars spaced 15 mm apart

Machine affiliation:
G 7825
PG 8527
PG 8535
PG 8536
PLW 8636 [LAB / LAB MON]
PG 8504
PG 8583
PG 8583 CD
PG 8593
PLW 8505
PLW 8604
PLW 8615
PLW 8616
PLW 8617
PLW 8683
PLW 8683 CD
PLW 8693
PLW 6011
PLW 6111
PLW 7111

For optimum loading of up to 105 watch glasses.
• Area of application: reprocessing laboratory glassware
• Suitable for 105 watch glasses Ø 50 - 60 mm
• Equipped with 36 bars spaced 9 mm apart

Machine affiliation:
G 7825
PG 8527
PG 8535
PG 8536
PLW 8636 [LAB / LAB MON]
PG 8504
PG 8583
PG 8583 CD
PG 8593
PLW 8505
PLW 8604
PLW 8615
PLW 8616
PLW 8617
PLW 8683
PLW 8683 CD
PLW 8693
PLW 6011
PLW 6111
PLW 7111

Insert for the gentle holding of 5 microtiter plates.

Machine affiliation:
G 7825
PG 8527
PG 8535
PG 8536
PLW 8636 [LAB / LAB MON]
PG 8504
PG 8583
PG 8583 CD
PG 8593
PLW 8505
PLW 8604
PLW 8615
PLW 8616
PLW 8617
PLW 8683
PLW 8683 CD
PLW 8693
PLW 6011
PLW 6111
PLW 7111

Insert for the optimum loading of wide necked Erlenmeyer flasks.
• Equipped with 20 large and 26 small spring hooks
• Suitable for Erlenmeyer flasks & measuring cylinders

Machine affiliation:
PG 8527
PLW 8615
PLW 8616
PLW 8617

Users expect laboratory refrigerators and freezers to provide the highest levels of safety and reliability. The precise electronic control, forced-air cooling system, and highly efficient insulation together result in outstanding energy savings, keeping operating costs low while ensuring environmental protection. The advanced components and precise regulation work together to ensure optimal storage of materials.

Product Features

Easy Operation
User-friendly solutions for everyday use

• Built-in handle spanning the full height of the door
• Monochrome, 3-touch electronic control panel
• Easy-to-clean, stainless steel interior
• Door stays open at angles greater than 90°
• Flush-mounted internal ceiling LED lighting

Compliance and Documentation
Built-in safety features to protect sensitive materials

• Temperature setting (calibration)
• Logging of minimum/maximum temperature values
The device records the minimum and maximum internal temperatures, which are easily readable on the display
• Connectivity for retrofitting (LAN or WiFi for BMS or SmartMonitoring systems)
• Standard compliance: IEC 60068-3, IEC 61010-2-011

Safety and Reliability
Reliable storage due to consistent cooling performance, even under extreme ambient temperature conditions

• Temperature stability: ±3 °C for refrigerator / ±5 °C for freezer
• Alarm relay
Transmits alarms to the monitoring system / ensures no deviations go unnoticed
• The door automatically closes if the opening angle is less than 90°
• Probe access port with a diameter of 10 mm
• Mechanical door lock
• Long service life

Technical Specifications

• Gross/net capacity: 1391/1091 liters
• External dimensions (W/D/H) mm: 1427/867/2135
• Internal dimensions (W/D/H) mm: 1210/638/1470
• Energy consumption/year: 464 kWh
• Ambient temperature: +10 °C to +35 °C
• Heat emission: 1420 kJ/h
• Refrigerant: R 290
• Noise level: 60 dB(A)
• Frequency/voltage: 50 Hz / 220-240 V~
• Ventilated cooling system
• Automatic defrost
• Temperature range: -9 °C to -30 °C
• External casing/color: steel / white
• Internal lining: Chrome-nickel steel (1.4301 / AISI 304)
• Door/Cover material: steel
• Network connectivity via SmartModule / retrofittable
• WLAN/LAN port: optional
• Number of adjustable shelves: 8
• Shelf material: steel with plastic coating
• Usable shelf size (W/D) mm: 480/638 mm
• Shelf load capacity: 60 kg
• Castors with arrestor at the front, fixed castors at the rear
• Probe access port: 1 x Ø 12 mm
• Door opening direction: left fixed / right fixed
• Gross/net weight: 225/200 kg

This chemistry vacuum pumping unit is an economic space-saving solution for simultaneous operation of two independent vacuum applications with one single pump. Based on our popular MD 4C NT three-stage chemistry diaphragm pump, the PC 611 select is frequently used for vacuum applications involving even high boiling point solvents. This pump has sufficient capacity for parallel operation of two demanding applications. One application is controlled by the VACUUSELECT vacuum controller an electronic solenoid valve. The second application is controlled by a manually controlled diaphragm valve. Both vacuum ports have integrated check valves to protect against cross contamination and interference.
The integrated VACUU•SELECT controller provides an easy-to-use, application based interface that covers all common lab applications. The VACUU•SELECT controller has you covered. Use manual set-point-control for simple processes, run distillations, or create your own application with simple drag-and-drop editing. For solvent evaporation, it detects the boiling pressure and switches to 2 point control mode to hold the pressure stable when a boiling point is detected. The inlet separator, made of glass with a robust protective coating, prevents particles and liquid droplets from entering the pump, preventing damage and extending pump life. And the exhaust vapor condenser allows for nearly complete recovery of solvents when used with a chilled water line or recirculating chiller for economical recycling and environmental protection.

Performance features
• VACUU•SELECT vacuum controller with graphical user interface simplifies work in the laboratory
• predefined applications save time and give reproducible results
• easy-to-use application editor allows own process sequences
• meets high vacuum requirements for most high boiling solvents
• PC 611 select allows simultaneous operation of two independent vacuum applications

Insert for the optimum loading of beakers up to 250 ml.
• Equipped with 33 x 3 stay bars for beakers up to 250 ml

Machine affiliation:
PG 8527
PLW 8615
PLW 8616
PLW 8617

Insert for the optimum loading of beakers 250 - 600 ml.
• Equipped with 15 x 3 stay bars for beakers from 250 ml to 600 ml

Machine affiliation:
PG 8527
PLW 8615
PLW 8616
PLW 8617

Insert for holding different utensils.
• Perforated plate 7 x 7 x 3 mm
• Suitable for E 900-4/1, E 935/1, E 975/2, E 941 with E 945*

Machine affiliation:
PG 8527
PLW 8615
PLW 8616
PLW 8617