Laboratory Charge Analyser – LabSense
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LabSense 1 Laboratory Charge Analyser
Used to determine optimal coagulant dose on a water treatment plant Pi’s range of Laboratory Charge Analysers accurately measure colloidal and ionic charge using the streaming current principle (electrokinetic charge), which is comparable to zeta potential. Charge demand is determined with titration to the isoelectric point using the plant coagulant, either manually or by use of an automatic titrator.
In addition, the LabSense can help (in conjunction with jar testing) to determine the optimum alkali addition in soft water applications.
Pi’s LabSense Laboratory Charge Analysers are intuitive, flexible and give great repeatable charge demand determinations time after time.
Principle of Operation
The LabSense Laboratory Charge Analyser is also known as the ‘5 Minute Jar Tester’. This is because, in typically less than 5 minutes, it enables the user to determine the ideal coagulant dosage needed to achieve the optimum NTU and TOC reduction. This is just one of the reasons that it is considered an essential coagulation optimisation tool for water treatment.
The LabSense measurement cell uses a reciprocating piston in a probe assembly. This probe attracts particles and dissolved materials to its surface, using Van der Waals forces. These particles are surrounded by counter ions which migrate due to the motion of the probe. Electrodes in the probe measure the flow of the counter ions. This is an electrical current. The electrical current is processed electronically and shown on the LabSense screen as the Streaming Current Value (SCV).
Finding the optimum dosage is done by adding a measured volume of coagulant into the raw water sample until the reading indicates complete charge neutralisation has been obtained.
Key Benefits
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Standard Features
- LabTrac – accompanying software for extracting and analysing titration data
- Sample volume range of 200-2000ml for greatest accuracy
- Sensitivity adjustment for highly conductive samples
- Measures charge and charge demand
- Sturdy housing for easy mobility, quick set-up, and bench-top stability
- Low maintenance, improved reliability
- Detachable probe and piston to facilitate cleaning and prevent corrosion
- Gain control to amplify low level signals
- Zero offset to customise data sets
- Clear display
- Adjustable stand
In addition to the features listed above, the LabSense Laboratory Charge Analysers have the following additional features.
- Built-in titrator for coagulant (dilute only) (LabSense 2 and 3)
- Built-in titrator for pH (base or acid) (LabSense 3)
- pH measurement (LabSense 3)
- Temperature measurement (LabSense 3)
Pi’s range of LabSense Laboratory Charge Analysers are an essential coagulation optimisation tool for water treatment. LabSense allows the user to determine the ideal coagulant dosage needed to achieve optimum NTU and TOC reduction in typically less than 5 minutes, earning it the description “5 minute jar tester”.
With the UV254 Portable range of UV254 hand held meters you get a simple and reliable means of testing any water for UV transmittance (UVT) and UV absorbance (UVA). Used to provide quick (less than 1 min) information on site, the UV254 Portable provides an invaluable tool to water treatment engineers, essential for verifying an online analyser reading or as an independent measurement."The support from Pi and its partners is superb. They go above and beyond to ensure that, not only is their equipment perfect but that the process is working great too. Five Stars!"
Anthony Glitto
Equip Solutions - Illinois, USA
Everyone at Pi goes out of their way to be supportive and timely. Their expertise is unchallenged and I am very happy to endorse them as a quality supplier.
John Clark
Chemtrac - Georgia, USA
Servicing customers is much more than just solving problems or addressing complaints and Pi does that very competently with technical and quick efforts providing a good experience.
Clovis Tuchapski
Buckman - Latin America
