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Contact our regional representatives now at: Hanic Consultants | +27 (011) 782 3780 | Selectech | +27 (011) 475 8565 | sales@processinstruments.co.za
Contact our Head Office now on: +44(0)1282 422835 | sales@processinstruments.net
Latest News
- Residual Chlorine Analysers - Auto-flushed with Success
- Pi launches the World's first in-situ self-verifying Dissolved Oxygen meter
- Pi thanked by Prime Minister Gordon Brown
- Process Instruments scoops Innovation Award for Chlorine Analyser
- Green instrumentation helps the environment and could revolutionise the Water Industry
- Residual Chlorine Analysers flood into Northern Ireland
- Process Instruments awarded Northern Ireland deal for chlorine analysers
- Process Instruments clinch prestigious innovation award
- Rising stars provide instrumentation in Egypt
- Process Instruments pools its expertise with AQS

Chlorine Analysers, Ozone Analysers, Turbidity Meters, and Total Chlorine Residual Analyzers, Dissolved Oxygen Meters, Suspended Solids Meters and Automatic Polymer Control Systems are amongst the latest instruments to be launched by Process Instruments (UK) Ltd, a global supplier of online analytical instrumentation.
Process Instruments (Pi) - Manufacturers and Global Suppliers of Water Quality Analysers
Chlorine analysers, pool controllers, online pH meters are just a few of the products that we manufacture and sell across the world. Please complete a contact form or telephone us now so that we can put you in touch with your local sales outlet. Pi is a global supplier of residual chlorine analysers, dissolved oxygen meters, suspended solids monitors and online pH meters plus many more process water quality analysers.
Residual Chlorine Analyser

The Chlorine Analyser launched last year is being received by customers with enthusiasm due to its reagent free and bufferless operation and its ability to self calibrate, send and receive sms text alarms and email datalog information over the GSM/GPRS network. The Chlorine Analyzer, available as a Free Chlorine Analyzer, Total Chlorine Analyzer, Chlorine Dioxide Analyser, or Chloramine Analyser is also available with an Automatic Calibrator and autoclean system.
pH / ORP Analyser

The CRIUS® 100 pH meter uses state of the art sensor technology and offers a vast array of communication protocols including; Modbus, TCP/IP (LAN), USB, RS485, TTL, Relays and 4-20mA outputs. Cleverly engineered to save time and money by self-cleaning and auto-calibrating at user defined time intervals. With an extremely long life and stable pH sensor the pH meter is suitable for all online pH measurements.
Dissolved Oxygen Monitor

The CRIUS® 3200 Optical Dissolved Oxygen Monitor is for use in aeration lanes and oxidation ditches to control air blowers. Enhanced with a Pi self cleaning and self verification end cap (Pat pending), the CRIUS® 3200 DO Meter is a true market leader, offering enhanced reliability and unrivalled low maintenance thanks to its ability to check its own functionality on a regular basis. No more pulling up to the DO meter just to check that it is still working!
Turbidity Meter

The CRIUS® Solisense Turbidity Meter (Suspended Solids) is designed for use in industry as well as in WwTW's and is suitable for monitoring potable water, mixed liquor suspended solids, return activated sludge, centrates, filtrates, checked sludge, and much more! With its sophisticated sensor ranging from 0.02 NTU (FTU) to 8% solids, the CRIUS® Solisense Turbidity Meter (suspended solids) monitor is the ideal solution.
Selected Product Ranges Include:
CLEAN WATER ANALYSERS
We sell a range of clean water analysers including:
- Residual Chlorine Analyzers
- Total Chlorine Analyzers
- Chlorine Dioxide Analyzers
- Chloramine Analysers
- Ozone Analysers
- Particle Counters
- Turbidity Meters
- Online pH Meters ORP Meters
- Coagulant control systems
- Streaming current
- Suspended solids meters
WASTE WATER ANALYSERS
For the waste water market we sell a range of analysers that include:
- Suspended solids
- Turbidimeters
- Dissolved Oxygen Monitors
- Coagulant control using streaming current
- Ozone Analyser
- Chlorine Analyser
PAPER
For the Paper Industry we supply:
- Chlorine Analysers
- Ozone Analyser
- Suspended solids
- Turbidity meters
- Total Residual Chlorine monitoring
- Coagulant optimisation using streaming current
- Online and offline Charge measurement (Zeta potential)





