Laboratory Charge Analyser – LabSense
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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
Applications
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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
Pi’s LabSense Laboratory Charge Analyser is 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."We at Scottish Water have been using the excellent Pi LabSense 3 and portable UV254 instruments in the field for optimizing our Water Treatment processes for some years now. We find them easy to use and invaluable for detecting and resolving issues in a timely, efficient and effective manner. Two great pieces of kit!”
Paul Weir
Scottish Water - UK
"I want to thank you and all at Process Instruments for all the assistance, information and handholding during the year. The help that was so freely given was very much appreciated. Can you please extend my appreciation to all at Pi and let me wish you all a happy, safe and wonderful Christmas and I look forward to working with you again in 2021."
Michael Bailey
Wexford Co. Co. - Ireland
"Excellent level of support and always so much more prompt than a lot of our suppliers."
Phill Tuxford
Detectronic - UK
"The plant can’t produce good quality water without the CoagSense."
Mick Murphy
Wexford Co. Co. - Ireland
"We've used the CRIUS® with chlorine, pH and conductivity sensors for several years and confirm quality, performance and reliability has been wholly satisfactory to date."
David Kerr
Karis Technical Services Ltd. - UK
"We in ECM ECO Monitoring can only recommend Process Instruments products and services to all other potential clients. They have very complex portfolio of products for water quality monitoring in various types of industries, friendly attitude, very quick delivery time and prompt reaction to all our needs and inquires. Our clients especially appreciate the particle counters and sizers allowing identification of drinking water treatment problems. The Streaming Current Monitors are a great tool for optimisation of expensive chemicals.”
Branislav
ECM ECO Monitoring - Slovakia
"Simply the best turbidity available."
John Clark
Chemtrac - Atlanta, GA
"In 2019, we purchased 29 particle counters which were installed in our water plants. So far, their performance has been perfect."
Li Yongjun
Jinan Hongquan Water Company - China
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Jiao Tumei
Qingdao Guolin Environmental Technology Co., Ltd., - China
"Over the last few years we've purchased chlorine and turbidity analyzers from Chemtrac and with routine calibration the probes measure the chlorine and turbidity without any issue. We are very happy with this product and would highly recommend them."
Daniel "Buck" Owen
Ocoee Utility District - Ocoee TN
"We've been using these analyzers since 2008. They're easy to use and very stable. Calibration and maintenance is quick and simple."
Lloyd Gruginski
Chehalis WTP - Chehalis, WA
"The Pi products provide excellent value for money and represent the best municipal drinking water analyzers available."
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Chemtrac - Atlanta
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Buckman - Latin America
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Ibrahim Kaplin
Thermomed - Turkey
"Going from ORP control to amperometric chlorine sensor control has undoubtedly improved the pool water immensely!"
Chris Tedeschi
Link Automation - USA
"The Streaming Current Monitor from Pi is the best SCM I have ever used. The analyser responds quickly and has many powerful functions, which helps me save a lot of money."
Ye Yancong
Xiamen Xishan Water Plant - China
“Process Instruments has a broad range of high quality and user-friendly solutions for water-industry problems. The short lead times and great customer support make Pi a reliable partner.”
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SC KATALIN NOHSE CHIMIST IMPORT SRL - Romania
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Izasa Scientific - Spain
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Equip Solutions - Illinois, USA
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Allpronix - South Africa
Louis Wilmot
+44 7944 344511
louis.wilmot@processinstruments.net
Mukhtar Patel
+44 7377 374583
mukhtar.patel@processinstruments.net
