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On-line wastewater analysers

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article image Orbit analyser -- cost-effective and reliable.

JOHN Morris Scientific has announced ISCO's new Orbit on-line analysers for in-plant measurement of pH, suspended solids, dissolved oxygen, or conductivity.

Rugged, low-maintenance sensors ensure reliable and cost-effective management of water and wastewater treatment, as well as wastewater discharge permit compliance.

The Orbit transmitters use identical electronics with parameter-specific software to simplify service and upgrades. This consistent user interface enables plant staff to perform routine operations without extensive training or frequent refreshers.

Analogue 0-20mA or 4-20mA (selectable) output plus programmable relays and optional Hart protocol meet virtually any interfacing need.

The Orbit chlorine analyser uses a sensor with a membrane-covered cell that provides accurate measurement, without the strong flow-rate dependence of open cells.

The Orbit pH/ORP analyser is available with a choice of differential or double junction type pH sensors. It features a rugged sensor with plunger electrode design that allows mounting in any position.

The porous Teflon liquid junction resists fouling, and the double junction reference cell provides much longer life in applications containing sulphides and metals. For Oxidation Reduction Potential (ORP) applications, an ORP electrode manufactured with platinum electrodes is available.

The Orbit TSS/turbidity analyser measures a wide range of solids concentrations, allowing the use of a single sensor for a full range of wastewater treatment plant applications, from sludge to final effluent.

ISCO has configured outdoor mounting kits to simplify specification and ordering for common applications, in which the sensor is typically mounted in an open channel or basin with the transmitter close by.

Available options include additional relay outputs and advanced control software.

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