I wonder how reliable ORPs are in activated sludge wastewater. (Cleaning and calibration frequency... etc.)

Any recommended brand-name or typical ballpark price would be appreciated.

Thanks.

 

IK,

We are looking at a couple of makes, AST, Stranco and Royce. We use the ORP units from Stranco for Chlorination and Dechlorination control and D.O. probes from Royce. The Wastewater Treatment Plant Superintendent will be making his decision in a week or so.

Bob

Robert J. Dusza, Jr.
Project & Technical Support Manager
(V) 1-860-647-3219
(F) 1-860-647-3150
E-mail - [email protected]
Manchester Water & Sewer Dept.
125 Spring St. P.O. Box 191
Manchester, CT 06045-0191

 

Dear Bob,
EID manufacture (OEM) ORP (REDOX) electrode in CT.

http://www.eidusa.com/ORP_Electrodes.htm

Here is some information you may deem important:

EID's ORP electrodes are furnished with Band, Disk and Pin Sensor.

Basic guidance on what is the difference between the above configurations:

Pin Sensor: This electrode has a pin style element, this element is easy to clean, but does not use as much platinum as the band of disk style elements, thus the surface area is reduced; this electrode is the most economical.

Disk Sensor: This electrode has a flat disk style element, this element is used in small sample measurements or in samples were having a “self-cleaning” element is desirable – as the flat surface makes it more difficult for the sample to attach itself.

Band Sensor: This electrode has a standard band element which wraps around the glass bulb of the electrode, the style is the most common style ORP electrode and is used in most general measurement applications.

EID Corp. offers many types and styles of ORP electrodes and will customize them.

EID's high impedance interface board allows you to connect the electrode directly to your ADC (analog to digital converter), PLC or voltmeter.

http://www.eidusa.com/Interface_Boards_High_Inpidance.htm

http://www.eidusa.com/Interface_Boards.htm

http://www.eidusa.com/Interface_Boards_Application_39.htm

Good luck,
Ron
www.eidusa.com