pHSense

The pHSense range of online pH meters from Pi utilise the very latest and best pH sensors available in the world today for measuring the online pH of any aqueous solution. They are patented gel filled sensors with integral reference which uses no reagents, are extremely stable, and have reduced maintenance and reduced whole life costs. The junction, usually the source of error with current pH sensor technology is made from an electrochemically active solid resulting in a more robust pH sensor.

pH Sensor Pi’s pH sensor – pHSense for potable water and process applications

Online pH meters and pH controllers are one of the most common analysers in use today in water treatment and process plants and yet online pH meters cause continual problems for their operators. What is needed is a stable, reliable, online pH meter for a reasonable cost. That is exactly what you get with the pHSense.

The pHSense sensors and flow cells are available with different controllers giving you the same great performance with different communication, display, and control options. With the pHSense range of online pH meters, you get everything that you need – and nothing that you don’t.

The sensor at the heart of the Process Instruments online pH meter is a patented gel filled glass electrode. This pH electrode is far superior to many online process pH electrodes on the market and is designed for a long life, low drift and high reliability. Unlike many pH analysers, you don’t need to search through hundreds of pH electrodes to find one that works in your process as the pHSense electrode works in all environments from pH 2 to 12 and in conductivity from 0µS upward. Although they command a higher price in the market place these sensors are more than cost effective with their longer life and considerably lower maintenance requirements, typically only needing calibration once per two or three months. Despite the superior functionality that the pHSense has to offer, the purchase costs are less than or comparable to, its competitors!

The pHSense online pH meter takes away the requirement for continual calibration and re-calibration of the pH meter by operators as it utilises an extremely stable pH electrode. The pHSense will calculate a ‘degree of confidence’ in its own calibration and let you know if its confidence is low. If the pH meter detects a fault in the pH sensor then it gives instructions on the display as to what the fault may be, with full on board fault diagnostics.

The online pH meter is capable of full PID control and is equipped with process control options, data-logging, relay outputs, serial communications, (TCP, Ethernet, Modbus and Profibus are available now). Remote Access of the pH meter (including remote access to all control options) is available via the internet, and via a LAN. In fact the pHSense has all the options you could want in a pH meter whilst maintaining a low cost and great value for money.

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