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This chemistry vacuum pumping unit is an economical, compact solution for simultaneous operation of two electronically controlled vacuum applications with one single pump. Based on our popular MZ 2C NT two-stage chemistry diaphragm pump, the PC 520 select is frequently used for medium-sized vacuum applications involving common solvents.
Both vacuum ports have independent solenoid valves for electronic vacuum control, and check valves to protect against cross contamination and interference. With an intuitive, application-based interface, the VACUU•SELECT controller offers predefined vacuum processes for all common laboratory 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 two point control 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
• powerful vacuum pump with excellent chemical and condensate compatibility
• PC 520 select allow simultaneous operation of two independent applications with electronic vacuum control

The Open Heating Bath Circulators of the new CORIO series feature highquality transparent bath tanks and pump connections.
Your advantages
• Models for internal applications
• Bright, white, easy to read display
• Very quiet
• USB connection
• Class III (FL) according to DIN 12876-1

Advanced control technology and a small bath fluid reservoir enable highly dynamic temperature control systems to achieve rapid heat-up and cool-down. This gives you the ability to handle difficult temperature challenges quickly.
The PRESTO® systems are designed for precise temperature control as well as rapid temperature changes, making them ideal for reactor vessels, material stress tests, or temperature simulations. These instruments cover a working temperature of -92 to +250 °C with high cooling and heating capacity.
• USB connection
• For highly precise, external temperature applications
• Rapid heating and cooling
• Wide working temperature ranges without changing fluids
• Highest performance with small footprint
• Space-saving design optimizes space utilization in your lab
• Ethernet interface
• SD-Card slot
• RS232 / RS485 (optional) / Profibus DP (optional)
• Connections for alarm-output, Pt100 external sensor and standby-input
• Removable ventilation grid
• Highly precise ICC cascade temperature control
• Electronic level indication
• Integrated programmer
• Unsurpassed power and efficiency
• Space optimized design creates more room directly next to the units
• External Pt100 sensor connection

The Open Heating Bath Circulators of the new CORIO series feature highquality transparent bath tanks and pump connections.
Your advantages
• Models for internal applications
• Bright, white, easy to read display
• Very quiet
• USB connection
• Class III (FL) according to DIN 12876-2

The Open Heating Bath Circulators of the new CORIO series feature highquality transparent bath tanks and pump connections.
Your advantages
• Models for internal applications
• Bright, white, easy to read display
• Very quiet
• USB connection
• Class III (FL) according to DIN 12876-3

The Open Heating Bath Circulators of the new CORIO series feature highquality bath tanks made of stainless steel.
Your advantages
• Integrated drain screw
• Models for internal applications
• Bright, white, easy to read display
• Very quiet
• USB connection
• High-quality bath tanks made of stainless steel
• Integrated drain screw (except B5)

The Open Heating Bath Circulators of the new CORIO series feature highquality bath tanks made of stainless steel.
Your advantages
• Integrated drain screw
• Models for internal applications
• Bright, white, easy to read display
• Very quiet
• USB connection
• High-quality bath tanks made of stainless steel
• Integrated drain screw (except B5)

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

Tray with fixed clamps EX-5000 To load 3 x 5000 ml Erlenmeyer flasks

Square Saggar for Furnaces LHTC and LH
• Tmax 1600 °C
• Dimensions 110 x 75 x 30 mm
The load is placed in ceramic saggars for optimal utilization of the furnace space. Up to three saggars can be stacked on top of each other in the furnace. In models LHT 01/17 D and LHTCT 01/16 up to two saggars can be stacked. Each saggar has cut-outs for better ventilation.
The top saggar should be closed with a lid made of ceramic. The lid must be ordered separately (699000985).

Frontier rotors extend the functionality of Frontier centrifuges by increasing the number of tubes of varied types and sizes that can be used in conjunction with each of the centrifuge models. Easy to clean and operate, the rotors are durably constructed to withstand demanding centrifugation.

Compatible adapters and other accessories:
• Adapter, D11mm, 1.5/2.0ml Tubes x6 (30130886); Adapter, D13.5mm, 5ml Tubes x2 (30130890); Adapter, D13.5mm, 7ml Tubes x2 (30130889)

The PC 3002 VARIO select pumping unit precisely controls the vacuum level in order to achieve unparalleled process control. This two stage MZ 2C VARIO pump at the core of the PC 3002 VARIO is suitable for work with most common solvents. 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 detects the boiling point and automatically adjusts the vacuum process as necessary. The application, desired vacuum, and other parameters can also be combined or controlled individually. The pump runs only as fast as necessary due to the VARIO control. This extends the maintenance intervals and makes the pumping unit whisper-quiet. 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 and predefined applications simplifies work in the laboratory
• automatic boiling point detection and adjustment of the vacuum for short process times
• compact and efficient, good ultimate vacuum even with open gas ballast valve
• very quiet, low-vibration operation and extra long service intervals
• excellent environmental compatibility through low energy consumption and efficient solvent recovery

The Open Heating Bath Circulators of the new CORIO series feature highquality bath tanks made of stainless steel.
Your advantages
• Integrated drain screw
• Models for internal applications
• Bright, white, easy to read display
• Very quiet
• USB connection
• High-quality bath tanks made of stainless steel
• Integrated drain screw (except B5)

Advanced control technology and a small bath fluid reservoir enable highly dynamic temperature control systems to achieve rapid heat-up and cool-down. This gives you the ability to handle difficult temperature challenges quickly.
The PRESTO® systems are designed for precise temperature control as well as rapid temperature changes, making them ideal for reactor vessels, material stress tests, or temperature simulations. These instruments cover a working temperature of -92 to +250 °C with high cooling and heating capacity.
• USB connection
• For highly precise, external temperature applications
• Rapid heating and cooling
• Wide working temperature ranges without changing fluids
• Highest performance with small footprint
• Space-saving design optimizes space utilization in your lab
• Ethernet interface
• SD-Card slot
• RS232 / RS485 (optional) / Profibus DP (optional)
• Connections for alarm-output, Pt100 external sensor and standby-input
• Removable ventilation grid
• Highly precise ICC cascade temperature control
• Electronic level indication
• Integrated programmer
• Unsurpassed power and efficiency
• Space optimized design creates more room directly next to the units
• External Pt100 sensor connection

The Open Heating Bath Circulators of the new CORIO series feature highquality bath tanks made of stainless steel.
Your advantages
• Integrated drain screw
• Models for internal applications
• Bright, white, easy to read display
• Very quiet
• USB connection
• High-quality bath tanks made of stainless steel
• Integrated drain screw (except B5)

The Open Heating Bath Circulators of the new CORIO series feature highquality bath tanks made of stainless steel.
Your advantages
• Integrated drain screw
• Models for internal applications
• Bright, white, easy to read display
• Very quiet
• USB connection
• High-quality bath tanks made of stainless steel
• Integrated drain screw (except B5)

The Open Heating Bath Circulators of the new CORIO series feature highquality bath tanks made of stainless steel.
Your advantages
• Integrated drain screw
• Models for internal applications
• Bright, white, easy to read display
• Very quiet
• USB connection
• High-quality bath tanks made of stainless steel
• Integrated drain screw (except B5)

The Open Heating Bath Circulators of the new CORIO series feature highquality bath tanks made of stainless steel.
Your advantages
• Integrated drain screw
• Models for internal applications
• Bright, white, easy to read display
• Very quiet
• USB connection
• High-quality bath tanks made of stainless steel
• Integrated drain screw (except B5)

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 EX-6000 To load 2 x 6000 ml Erlenmeyer flasks