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Diaphragm pumps are an excellent solution for continuous, oil-free evacuation and pumping of gases. All parts in these MZ 2 series pumps that are in contact with pumped media are made of aluminum, stainless steel and selected plastics, allowing a wide range of applications for non-corrosive gases. The two-stage construction provides the advantageous combination of high pumping speed and an ultimate vacuum down to 4 mbar. The highly flexible fabric-reinforced double diaphragms made of FKM provide high reliability and extended operating life. The NT-series features further improved performance data and compact design.

Performance features
• contamination-free pumping and evacuation
• high flow rate even near ultimate vacuum
• good ultimate vacuum
• whisper quiet and very low vibration
• exceptionally long diaphragm life and maintenance-free drive system for low lifetime costs

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 N (1100 °C)
• Ceramic heating plates with integral heating element which is safeguarded and easy to replace
• With flap door (L)
• 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 B510 (5 programs with each 4 segments)
• 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

Tray with fixed clamps F-3000 For 8 Erlenmeyer flasks with 3000 ml volume

Description
These three-stage diaphragm pumps are an excellent solution for continuous, oil-free pumping of non-corrosive gases. They reach an excellent ultimate vacuum of 1 mbar. All parts in contact with pumped gases and vapors are made of aluminum, stainless steel and carefully selected plastics suitable for a wide range of applications with non-corrosive gases. The new NT-series provides whisper quiet and ultra-low vibration operation, high leak tightness and improved performance. The highly flexible fabric-reinforced double diaphragm made of FKM is ideal for extended operating life.

Performance features
contamination-free pumping and evacuation
high flow rate even near ultimate vacuum
whisper quiet
very low vibration
exceptionally long diaphragm life and maintenance-free drive system for low lifetime cost

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 N (1100 °C)
• Ceramic heating plates with integral heating element which is safeguarded and easy to replace
• With flap door (L)
• 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

Designed for continuous, oil-free pumping of non-corrosive gases, this three-stage pump achieves vacuum levels as deep as 1 mbar. Crafted with aluminum, stainless steel, and carefully selected plastics, its durability ensures a wide range of applications. With whisper-quiet operation and ultra-low vibrations, the MD 4 VARIO select adapts its motor speed for precise vacuum control, while its fabric-reinforced double FKM diaphragm ensures extended life.

The VARIO design, featuring variable speed and the VACUU·SELECT vacuum controller, offers unmatched flexibility. Ideal for physics, analytics, and more, these pumps excel in contamination-free evacuation. Plus, with customized options available, meet your specific needs effortlessly. Enjoy extraordinary diaphragm life, minimum operational costs, and precise vacuum control with the VARIO® diaphragm pump.

Product features

• VACUU·SELECT vacuum controller with graphical user interface and predefined applications simplifies work in the laboratory
• Extraordinary diaphragm life for minimum operational and servicing costs
• Contamination-free pumping and evacuation
• Excellent ultimate vacuum and TURBO·MODE for use as backing pump for turbo pumps

Tray with fixed clamps F-4000 For 5 Erlenmeyer flasks with 4000 ml volume

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 flap door (L)
• 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 B510 (5 programs with each 4 segments)
• 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

Tray with fixed clamps F-5000 With 4 clamps

Three-stage chemistry-design diaphragm pumps are an excellent solution for continuous, oil-free pumping of corrosive gases and vapors and meet even challenging requirements. The three-stage design provides the advantageous combination of high pumping speed and very low ultimate vacuum. All parts of the MD 4C NT in contact with pumped media are made of chemically resistant fluoroplastics. Well-proven PTFE sandwich diaphragms provide increased reliability and extended operating life. Due to the gas ballast valve and its very good ultimate vacuum (even with gas ballast) the MD 4C NT is also suitable for pumping condensable vapors of high-boiling solvents. The NT-series features further improved performance data, easy service and superior vapor tolerance.

Performance features
• outstanding chemical resistance and superior vapor tolerance
• exceptionally high performance even at low vacuum
• excellent ultimate vacuum even with gas ballast
• whisper quiet and very low vibration
• long diaphragm life, maintenance-free drive system

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 flap door (L)
• 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

Tray with fixed clamps F-6000 To load 3 x 6000 ml Erlenmeyer flasks

The MD 4C VARIO select pump is an excellent solution for labs working with most high boiling point solvents. The pump's three stage configuration gives it an ultimate vacuum rating of 1.5 mbar.
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 fully automated distillations, or create your own application with simple drag-and-drop editing. For solvent evaporation, the VACUU•SELECT controller continuously detects the boiling point and automatically adjusts the vacuum process as necessary. VARIO's on-demand motor speed control results in whisper-quiet operation and unparalleled length of service intervals for wear parts.

Performance features
• VACUU•SELECT vacuum controller with graphical user interface and predefined applications simplifies work in the laboratory
• automatic boiling point detection and adjustment of the vacuum for short process times
• extraordinary diaphragm life for minimum operational and servicing costs
• meets high vacuum requirements for most high boiling solvents

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 N (1100 °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 B510 (5 programs with each 4 segments)
• 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 work together to achieve outstanding energy efficiency, keeping operating costs low and ensuring environmental protection. The advanced components and precise regulation ensure optimal storage conditions for materials over the long term.

Product Features

• Ventilated cooling system
• Cooling technology: NoFrost
• Temperature range: -9 °C to -35 °C

Simple Operation

• Built-in handle spanning the full height of the door
• 2.4" color electronic control panel with touch & swipe functionality
• Easy-to-clean stainless-steel interior
• Flush-mounted internal lighting (vertical, full-height side LED lighting)

Safety and Reliability

• Maximum temperature stability: ±5 °C
• VCC variable speed compressor
Thanks to variable-speed compressors, the appropriate power is always available, which reduces energy consumption while providing higher temperature stability.
• Optical and acoustic alert in case of malfunction
• SafetyDevice: prevents the temperature from dropping below +2 °C, preventing freezing
• PT1000 product temperature sensor
In addition to the built-in control sensor, a secondary temperature sensor is available to measure the simulated product temperature. The value measured by the product temperature sensor can be displayed on the screen. This value is calibratable, and the upper/lower alarm thresholds are based on this value for safer storage based on actual product temperatures.
• Power outage alarm
In case of a power outage, the built-in battery maintains power for at least twelve hours and immediately triggers an audible and visual alarm. An additional display indicates the start of the power failure and the maximum temperature reached.
• LightAlarm
If uncontrolled temperature rise, a door left open, or any other problem occurs, the internal lighting of the unit will start flashing.
• Alarm history: Simple quality control
The last 10 alarms are logged with important data (such as date or maximum temperature) to assist in the final quality assessment of stored goods.
• Built-in data logger: Trackable for years
Full traceability independent of monitoring systems, with logging of the temperature profile, alarm history, and service information for up to 5 years. Data can be retrieved via USB port.
• The door automatically closes when opened at less than a 90° angle
• Probe access: 1 x Ø 12 mm
• Electronic lock system: Protection against unauthorized access with PIN code or remote lock/unlock control
• SmartLock: The door automatically locks in case of a temperature alarm, which can only be unlocked by authorized personnel
• Long lifespan

Compliance and Documentation

• DIN 13277 and IEC 61010-2-011 compliance
Liebherr laboratory and pharmaceutical refrigeration units meet all the characteristics and performance criteria necessary for full compliance with the DIN 13277 standard. The DIN 13277 defines the requirements and testing guidelines for refrigeration and deep-freeze equipment used in laboratories and for pharmaceutical storage.
• Temperature distribution and consistency according to IEC 60068-3
• Safety according to IEC 61010-2-011
• Temperature setting (calibration)
• Logging of minimum/maximum temperature values
• Integrated connectivity (LAN or WiFi for BMS or SmartMonitoring system)

Technical Data

• Gross/net capacity: 614/480 L
• External dimensions (W/D/H): 697/867/2135 mm
• Internal dimensions (W/D/H): 489/638/1470 mm
• White stainless steel exterior
• Door/Cover material: Steel
• Number of adjustable shelves: 4
• Plastic-coated wire shelves
• Usable shelf size (W/D): 570/788 mm
• Shelf load capacity: 60 kg
• Door opening: Right-hand reversible
• Castors with arrestor at the front, fixed castors at the rear
• Gross/net weight: 150/132 kg
• Energy consumption/year: 702 kWh
• Ambient temperature: +10 °C to +35 °C
• Heat emission: 875 kJ/h
• Refrigerant: R 290
• Noise level: 60 dB(A)
• Frequency/voltage: 50/60 Hz / 220-240 V~

This chemistry vacuum system has a wide range of applications like evacuation, evaporation and pumping of gases and vapors in chemical, biological and pharmaceutical laboratories that do not require condensation of solvent vapors at the outlet. This system is well proven for high vacuum requirements with high boiling solvents. Typical applications are vacuum concentrators, rotary evaporators and drying ovens. The separator at the inlet (AK), made of glass with a protective coating, retains particles and liquid droplets. The catchpot at the outlet collects condensate, avoids condensate backflow towards the pump and reinforces the whisper-quiet operation of the pump.

Performance features
• outstanding chemical resistance and superior vapor tolerance
• exceptionally high performance even at low vacuum
• excellent ultimate vacuum even with gas ballast
• whisper quiet and very low vibration
• separators at inlet and outlet to collect condensates

JULABO calibration baths are ideal for high precision calibration of sensors, measuring instruments, thermometers, etc. The instruments are certified for application in DKD laboratories and according to the requirements specified by DIN EN ISO 9001:2000.
Your advantages
• VFD COMFORT DISPLAY
• LCD DIALOG DISPLAY backlit for convenient interactive operation
• Keypad for setpoints, warning/safety values and menu functions
• ICC (Intelligent Cascade Control), self-optimizing temperature control
• TCF Temperature Control Features to optimize the control behavior
• ATC3 3-Point-Calibration
• Pt100 External sensor connection for measurement and control
• SMART PUMP, electronically adjustable pump stages
• Adjustable high temperature cut-out, visible via display
• Integrated programmer for 6 x 60 program steps
• Highest temperature stability to ±0.005 °C (±0.02 °C at +200 °C)
• Temperature uniformity better than ±0.01 °C
• Optional Pt100 sensor for reference temperature measurements
• Temperature chamber with overflow at maximum liquid level

JULABO calibration baths are ideal for high precision calibration of sensors, measuring instruments, thermometers, etc. The instruments are certified for application in DKD laboratories and according to the requirements specified by DIN EN ISO 9001:2000.
Your advantages
• VFD COMFORT DISPLAY
• LCD DIALOG DISPLAY backlit for convenient interactive operation
• Keypad for setpoints, warning/safety values and menu functions
• ICC (Intelligent Cascade Control), self-optimizing temperature control
• TCF Temperature Control Features to optimize the control behavior
• ATC3 3-Point-Calibration
• Pt100 External sensor connection for measurement and control
• SMART PUMP, electronically adjustable pump stages
• Adjustable high temperature cut-out, visible via display
• Integrated programmer for 6 x 60 program steps
• Highest temperature stability to ±0.005 °C (±0.02 °C at +200 °C)
• Temperature uniformity better than ±0.01 °C
• Optional Pt100 sensor for reference temperature measurements
• Temperature chamber with overflow at maximum liquid level

Insert for loading different utensils.
• Area of application: reprocessing laboratory glassware
• Suitable for beakers, funnels, breast milk pumps, for example
• With flexible handles

Machine affiliation:
PLW 8615
PLW 8616
PLW 8617
PLW 7111

For loading different utensils.
• Area of application: reprocessing laboratory glassware
• Suitable for beakers, funnels, breast milk pumps, for example
• With flexible handles

Machine affiliation:
G 7823
G 7824
G 7825
G 7826
PG 8527
PG 8528
PG 8535
PG 8536
PLW 8636 [LAB / LAB MON]
PG 8562
PG 8582
PG 8582 CD
PG 8504
PG 8583
PG 8583 CD
PG 8592
PG 8593
PLW 6011
PLW 6111
PLW 8505
PLW 8604
PLW 8683
PLW 8683 CD
PLW 8693