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The S651CD submersible electrode and the S656CD insertion electrode from Sensorex are suitable for a range of dirty applications in municipal and industrial water and wastewater treatment facilities.

The enhanced S651CD and S656CD electrodes now combine excellent performance with lower maintenance requirements and a longer life, according to the company.

The new S651CD submersible sensor is an upgrade to the original S650CD electrode and can be used in place of the S650CD and the S650CDHT.

The new pH glass protection feature and added performance of acrylamide reference gel add even more value to these economical, rugged and easy-to-install submersible flat-surface, self-cleaning pH/ORP electrodes.

The S651CD submersion pH/ORP electrode is designed for measurements in tanks, flumes and sewer lines, in addition to other applications with high suspended solids, where flocculation operations require low velocities and in tanks with high agitation.

It features a quick-disconnect design for lower operating costs, a flat surface to resist coating and the option to be mounted at a 45deg angle facing into the flow to further increase scrubbing action across the measured surface.

The S651CD sensor is available in CPVC and with or without ATC elements.

The S651CD features a measurement range of 0-14 pH (0-12 pH without Na+ error) at +/-2,000mV for ORP measurement.

The electrode operates at a minimum temperature of 50F (10C) for fast response timing up to 185F (85C) depending on the maximum pressure desired, which can be up to 80psig.

The new S656CD insertion sensor is an upgrade to the S656CD electrode and can be used in place of the S655CD, S655CDHT and 970283 models.

Like the S651CD, the new S656CD features standard HT gels and reduced breakage potential.

The S656CD features an insertion assembly, allowing pH measurements to be made in pressurised tanks and mainlines without shutting down the system for electrode maintenance.

It further reduces maintenance and the cost of ownership with a quick-disconnect design and the ability to be installed in seconds with no tools.

The S656CD electrode features an adjustable insertion depth that allows it to be placed in a turbulent flow region to operate in self-cleaning mode.

It is available in CPVC construction and with or without ATC elements.

The S656CD features a measurement range of 0-14 pH (0-12 pH without Na+ error) at +/-2,000mV for ORP.

The electrode operates a minimum temperature of 50F (10C) and up to 185F (85C) depending on the maximum pressure desired, which can be up to 80psig.

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