Eppendorf Multipette M4 Hand Dispenser, Multi-channel Dispenser, 4982000314

The Eppendorf Multipette M4 hand-held dispenser is a highly advanced, ergonomic system solution for precise and repetitive liquid handling in molecular biology, pharmaceutical and medical laboratories. When carrying out volumetric batch dispensing, such as ELISA test series, cell culture inoculations or the aliquoting of buffer systems, minimising cumulative pipetting errors and mechanical strain on the user is the decisive factor for valid experimental results. Unlike conventional micropipettes, this system operates on the thermodynamically advantageous direct displacement principle. As there is no internal air gap between the sample and the piston, volumetric accuracy remains constant regardless of the physical properties of the medium. This makes the Multipette M4 ideally suited for the reliable dispensing of highly viscous solutions, volatile organic solvents or foaming surfactants, where air-cushion pipettes would exhibit metrological deviations.

The mechanical operating principle and automatic sensor technology

At the heart of the system lies the perfectly coordinated interaction between the handheld dispenser and the Eppendorf Combitips advanced. Thanks to integrated mechanical sensors, the Multipette M4 automatically detects the tip size as soon as it is locked into place. The integrated microprocessor then immediately calculates the exact dispensing volume and displays it on the high-contrast LCD screen. This eliminates time-consuming volume calculations and setting errors in multi-user environments such as universities and routine clinical laboratories. With a single filling of the tip, up to 100 dispensing steps can be carried out successively and with high precision without the need to refill the tip. With nine different Combitip sizes, the system covers an extremely wide volume range from 1 µL to 50 mL, offering the user maximum flexibility in experiment planning.

Ergonomics based on the PhysioCare Concept and process reliability

The housing design has been developed in strict accordance with the criteria of the Eppendorf PhysioCare Concept ® to significantly reduce the risk of Repetitive Strain Injury (RSI) syndrome during long pipetting runs. The design is anthropometrically optimised so that the dispenser sits balanced in the hand and all controls can be reached without changing hand position. A central hand-operated lever controls both the uptake of media and the step-by-step dispensing with minimal effort, whilst a separate ejection mechanism ensures the contact-free and contamination-free ejection of used tips. To increase durability and resistance to chemical agents, the housing is made of highly resistant polymers. An integrated mechanical step counter supports seamless monitoring of the workflow by continuously displaying the number of dispensing cycles already performed. A clever sleep function switches off the display when not in use to conserve the integrated lithium battery, thereby guaranteeing reliable operation for years to come.

Technical details

System & Dispensing Technology

• Device type: Mechanical hand-held dispenser (multi-dispenser)
• Operating principle: Direct displacement principle (completely air-cushion-free)
• Volume range: 1 µL – 50 mL (application-dependent via Combitips advanced)
• Max. dispensing steps: Up to 100 individual steps per tip fill
• Volume adjustment: Mechanical dial mechanism

Metrology & Sensors

• Display: Digital LCD display for volume and step counting
• Tip recognition: Automatic, mechanical coding detection of Combitip size
• Step counter: Integrated, displays the absolute number of dispensing steps
• Setting accuracy: Depends on the Combitip size used (compliant with ISO 8655)

Design & Ergonomics

• Design standard: Eppendorf PhysioCare Concept ® (ergonomically tested)
• Tip ejection: Separate ejection lever for contamination-free ejection
• Housing material: Highly chemically resistant laboratory-grade polymers
• Display power supply: Integrated long-life lithium battery (with sleep mode)
• Weight: Extremely low weight to reduce strain on the hand muscles

Contents

• 1 x Eppendorf Multipette M4 hand dispenser (MPN: 4982000314)
• 1 x wall and carousel mount for secure system integration
• 1 x Combitips advanced combo pack (sample set with various sizes)
• 1 x Factory certificate / Quality certificate in accordance with ISO 8655
• 1 x User manual

Customised requirements & accessories

The use of genuine Eppendorf Combitips advanced is essential for the smooth and precise operation of the Eppendorf Multipette M4 hand dispenser. These are available separately in nine different volume sizes and in various purity grades (e.g. Eppendorf Biopur®s for sterile cell culture applications). For safe and convenient storage at the workstation, we recommend integrating the dispenser into the rotating Eppendorf pipette carousel using the supplied holder. For quality-critical and audited processes, we also offer pipette calibrations in accordance with the manufacturer’s specifications. Please use our procurement service to source your consumables.