PID Auto-Tune – why it might not work for water processes
Process Instruments (Pi) are increasingly seeing water engineers and technicians relying on their PLC’s PID auto-tune feature. Many are becoming frustrated that the auto-tuners are unreliable when it comes to water processes. Sometimes the auto-tuned PID settings work, but then something changes in the process and the PID control no longer functions correctly. In this…
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Pi reaches the Red Rose Awards Finals 2019
The Process Instruments Group is excited to have reached the Lancashire Business View Red Rose Awards 2019 finals. Pi has been shortlisted for two awards at the Red Rose Awards, where businesses throughout Lancashire are celebrated. Growing Business Award Pi’s growth of 53% in 2018 comes on top of 19.4% in 2017 and 29% in…
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Process Instruments (UK) Ltd. – a British Company exporting to China
In November 2018, Pi welcomed one of their Chinese distributors, Shanghai LIM Mechanical & Electrical Co., Ltd. and one of their customers, HXDD, to the UK for product training. Shanghai LIM are one of Pi’s largest distributors, specialising in selling OzoSense ozone analyzers into the industrial water treatment sectors in China. They have been working…
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Measuring Free Chlorine in the presence of Chlorine Dioxide
Measuring free chlorine and chlorine dioxide independently of each other is quite a challenge, given their chemical similarities. Many sensors struggle to differentiate between the two measurands, but did you know that… …many chlorine probes suffer from interference in the presence of chlorine dioxide? …DPD1 will read both chlorine and chlorine dioxide? …you can have…
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Pi appoints new distributor in the Philippines
Process Instruments (Pi) have formed a partnership with Yuyuna Engineering Supplies and Services (YESS) to distribute Pi’s products in the Philippines. Having attended both the AsiaWater and Singapore Water exhibitions earlier this year, Sales Manager Hermie Yu was able to see first hand the Pi systems displayed by our Malaysian and Singaporean distributors. Forming a…
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ORP for the Removal of Residual Chlorine using Sodium Bisulphite (or other reducing chemicals)
Chlorine is often removed from a process and there are a number of potential reasons why. Chlorine might damage an RO membrane or turn food brown in an unsightly manner. Chlorine removal presents several challenges to instrumentation manufacturers and engineers, but did you know that… …ORP can effectively control sodium bisulphite dosing to remove chlorine?…
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Process Instruments (UK) Ltd. and Chemtrac Inc. celebrate 20 years of working together
As well as the recent 20th Anniversary Party, Pi are celebrating 20 years of working with US company, Chemtrac Inc.. Chemtrac Partnership Essential to Pi Success The partnership between Pi and Chemtrac has been fundamental to Pi’s success. Chemtrac is, and has been, a customer, distributor, OEM, supplier and supporter since Pi’s launch in 1998.…
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Process Instruments turns 20!
In November 2018, Pi celebrated its 20th anniversary with a party for employees, shareholders, suppliers, partners and friends, in The Prestbury Suite at The Oaks Hotel in Burnley. Gifts for Directors and Shareholders As part of the celebrations, directors and shareholders were presented with a selection of gifts, including two from Burnley based companies; gin…
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Zero Chlorine
If you’ve ever had an application that uses Reverse Osmosis (RO), such as in a renal ward, you probably understand the damaging effect that chlorine can have on RO membranes, but did you know that… …Pi has a security system that can alert you to any free chlorine present and can actually prevent the contaminated…
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Water 4.0 and Industry 4.0 Controllers available from Pi
Pi’s CRIUS® Controller is perfectly set up for Industry 4.0, Water 4.0 and the Internet of Things, as well as being fully SMART and DIGITAL, but what does this mean? Industry 4.0 relates to the concept that we are living through a 4th Industrial Revolution where factories will be as SMART as they can be.…
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