The Pyxis ST-712 pH/ORP combined sensor is specifically designed to simplify installation, calibration and in-use operation in process water, industrial water, wastewater and cooling water applications. These sensors are uniquely designed to offer an embedded transmitter and can be utilized in both 4-20mA or RS-485 Modbus formats. When utilized in RS-485 Modbus format, these sensors also provide a temperature output signal. These features dramatically improve application possibilities allowing the ST-712 to be directly connected to most OEM microprocessor-based controllers, PLC’s and Distributed Control Systems.
The oversized platinum disk for ORP and the flat pH bubble sensing elements increase their resistance to highly turbid waters and contamination. The enlarged salt bridge design with large junction capacity also ensures a significantly longer sensor life with minimal maintenance.
These devices are ideally suited for hard to measure waters where conventional pH & ORP sensors would have otherwise failed or required high maintenance costs. They do not require electrode change out or potassium chloride (KCl) refill and are designed to be used until end of life and completely swapped out. Each sensor offers a six-foot cable 7-pin quick adapter as well as a 1.5-foot flying lead wire with 7-pin adapter for rapid installation and replacement. They are provided with the ST-001 Pyxis standard ¾” NPT CPVC installation tee for in-line flow applications, but may also be installed in submersed applications using the MA-102S Submersion Adapter Kit. Additionally, larger pipe size installation tees are available.
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