M Series liquid handling pump     NEW

The patented* Cheminert^® M Series liquid handling pump is a syringe-free pump capable of delivering a bidirectional flow over six orders of magnitude. The M Series is a positive displacement pump, which means that it is self-priming and tolerant of any gas which may find its way into the fluid lines. There is no separate fill cycle, and the capacity is unlimited.

Two models are offered – the M6 with a flow range of 10 nl to 10 ml, and the M50 with a range of 50 µl to 50 ml.

RS-232 and RS-485 communication protocols are incorporated into the microprocessor-driven controller. (USB interface requires an adapter.) The included software package controls flow rates, flow direction, and metered volumes.

While the standard package includes software and instructions to run the pump as a stand-alone unit, the pump is also available with an integrated 8 position stream selection valve.

* Patent number 6,079,313

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Applications
Product numbers
Specifications

Operating principle

At the core of the pump is a polymeric rotor which houses four 1/8" diameter pistons in sapphire cylinders. As the microstepper motor turns the rotor, the pistons float on a stationary cam; at any given moment, one piston is filling, one is dispensing, and the other two are in transit between the fill and dispense positions.

Animated views of the M Series (AVI format)

Action of pistons riding on cam (2.1 meg)
Pulseless load/dispense action of pistons (2.6 meg)
(These are large files and will take a considerable time to download over a dialup connection.)

Further reference

Printable brochure (pdf format)
Declaration of CE compliance
Decontamination report (must accompany units returning for repair)

Specifications

	M6	M50
Continuous minimum dispense	10 nl	50 µl
Continuous maximum dispense	10 ml/min	50 ml/min
Maximum backpressure	100 psi	100 psi
Gravimetric precision        for 125 µl       for 1.25 ml	0.5%   0.05%	0.8%   0.1%
Pump internal volume (µl)	100 ± 1	625 ± 2

Product numbers

Description		Product No.
Model  M6	Pump, controller,  and stepper motor	CP2-4841-100M1
	Pump and stepper motor	CP2-4841-100SM
	Pump only	CP2-4841-100D
	Controller only	CP-CM1-P
	Replacement pump motor	CP-DSM
Model  M50	Pump, controller,  and stepper motor	CP3-8572-625M2
	Pump and stepper motor	CP3-8572-625SM
	Pump only	CP3-8572-625D
	Controller only	CP-CM1-P
	Replacement pump motor	CP-DSM2

Applications

• Calibration source for mass spectroscopy
• Flow-based electrochemical systems
• Flow cytometry, cell and drug perfusion
• HTS and robotic systems
• Infusion and micro-dialysis
• LC applications - micro flow, micro gradients
• Mass spectroscopy sample introduction
• Mass spectroscopy source cleaning
• Micro diluters/dispensers for nl to ml range applications
• Micro liquid transfers (nl) for micro arrays
• Microtiter plate dispensing using multiposition valves
• Post-HPLC column reagent addition, stop flow, peak collection
• Precision dispensers and sampling devices (such as autosamplers)
• Sample introduction systems for ICP nebulizers