Pumps in potentiometry

Safe and convenient transportation of liquids of all kinds





Pumps in potentiometry – more safety, convenience, and reliability

Large volumes of liquids are frequently transferred during quired. The benefits are obvious: The automated transfer 02

titrations and measurements. In modern systems, such of solutions makes working more convenient and saves transfers are carried out by pumps. Pummps provide for time. Above all, however, it increases the safety of labo-the automatic transport and precise dosing of the respec-ratory personnel.

tive solutions and/or of the water for any rinsing steps re-

• Aggressive or hazardous solution mixtures are collected directly in the waste canister without manual interaction, enabling straightforward and safe disposal.

• The beakers used are empty after the determination and already pre-rinsed enabling straightforward and risk-free cleaning in the dishwasher.

• Fully automated sequences guarantee that the electrode always under-goes identical cleaning and preconditioning. This enhances the accuracy and reproducibility of results.

As a worldwide leading manufacturer of system solutions for titration and measurements of all types, Metrohm offers a complete line of suitable pumps.





Membrane pumps, peristaltic pumps, Level Control The Metrohm pumps for potentiometry are available as 03

membrane or peristaltic pumps with one or two chan-nels. Some of them allow for direct button control.

Membrane pumps

With a flow rate of at least 450 mL/min, Metrohm membrane pumps are the perfect choice for the fast addition of solvent. This greatly simplifies filling of the sample with solvent or spraying of the rinsing medium.

Peristaltic pumps

Peristaltic pumps can be used universally, as the material of the tubing can be chosen to meet the requirements of the application. Mixtures of organic solvents or solutions with particles can also be transported easily. This makes the emptying of the titration beakers after a precipitation titration, or procedures such as a pH measurement of orange juice, simple and straightforward.

Level Control

When large volumes of liquids are transferred without supervision, safety is paramount. The flow of the respec-tive medium must be ensured at all times. This additional safety is provided by the Level Control. It prevents the waste canister from flowing over, or the pump from run-ning dry increasing safety in the laboratory and making sure that all samples are processed exactly the same.

Ordering information



Membrane pumps

2.823.0010

823 Membrane Pump Unit

2.823.0020

823 Membrane Pump Unit «aspirate»

2.823.0030

823 Membrane Pump Unit «rinse»

2.843.0020

843 Pump Station (membrane)

2.843.0030

843 Pump Station (membrane) – rinse/aspirate for Compact Sample Changer 2.843.0050

843 Pump Station (membrane) – rinse/aspirate for Sample Processors



Peristaltic pumps

2.772.0110

772 Pump Unit

2.772.0120

772 Pump Unit – aspirate

2.772.0130

772 Pump Unit – rinse

2.843.0120

843 Pump Station (peristaltic) 2.843.0130

843 Pump Station (peristaltic) – rinse/aspirate for Compact Sample Changer 2.843.0150

843 Pump Station (peristaltic) – rinse/aspirate for Sample Processors



Optional accessories

2.849.0010

849 Level Control

2.849.0020

849 Level Control metal-free (for canisters) 2.849.0030

849 Level Control metal-free (for bottles) G, CH-9100 Herisau

ohm A

witzerland by Metr

www.metrohm.com

, printed in S

SW

Subject to change

Layout Ecknauer+Schoch A

8.000.5133EN – 2015-02