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WQ600 ORP SENSORS
ORP meters and Oxidation Reduction Potential controllers.
ORP sensors,ORP meters,ORP controllers FEATURES:
  • Fully encapsulated electronics
  • 4-20 mA output
  • Marine grade cable with strain relief
  • Stainless steel housing
To Order Call 1-800-876-1172
ORP Sensors Options & Prices
On this page:

ORP Sensors Product Description
ORP Sensors Specifications
ORP Sensors Options & Prices

Downloads (PDF):

ORP Sensors Brochure
ORP Sensors Manual*

*May take several minutes to download, depending on your internet connection speed.
Additional Information:

Product Support
Water Quality Sensors

ORP Sensors Product Description
Global Water's (Redox) ORP sensor is a rugged reliable ORP/Redox measuring device.  The ORP sensor is molded to 25 ft of marine grade cable, with lengths up to 500 ft available upon request.  The ORP sensor's output is 4-20 mA with a three wire configuration.  The ORP sensor's electronics are completely encapsulated in marine grade epoxy within a stainless steel housing (online version has 1-¼ inch PVC x 12 inch pipe nipple, threaded both ends with cap)

Global Water's PC320 ORP Controller to use the ORP sensor's output to control pumps or alarms.  In addition Global Water offers GL500 ORP recorder adds recording capabilities to the ORP sensor.  The GL500 ORP recorder connects to the ORP sensor's 4-20mA output to record data.

Measuring ORP
ORP stands for oxidation-reduction potential, which is the measurement (in millivolts, or mV) of the oxidizing or reducing tendency of a solution.  Oxidation is the loss of electrons from an atom, molecule, or ion, which may or may not be accompanied by the addition of oxygen.  When a substance is oxidized, its oxidation state increases.  Reduction is the net gain of electrons.  When a substance is reduced, its oxidation state is lowered.  Oxidation and reduction reactions always accompany each other.  Every oxidation and reduction reaction can be characterized by a halfreaction, which provides all of the chemical substances participating in the reaction (many half-reactions are identified in standard chemistry handbooks or other reference materials).  The ORP of the solution depends on the concentrations of the substances participating in the half-reaction.  In order to calculate ORP when concentrations vary, you must use the Nernst equation.  Due to its logarithmic dependence on concentration and its dependence on multiple solution components, ORP is typically not a good method for measuring concentration.  The best use of an ORP is in monitoring and controlling oxidation-reduction reactions.  When an oxidation-reduction reaction occurs, there is usually a large change in the ORP, which overwhelms the factors that make concentration measurements an issue.  This allows you to ensure that an ORP reaction has gone into completion, and thereby control your application appropriately.
ORP Sensors Specifications
Output: 4-20 mA
Range: -500 to +500mV
Accuracy: 2% of full scale
Maximum Pressure: 40 psi
Operating Voltage: 10-36VDC
Current Draw: 0.2 mA plus sensor output
Warm Up Time: 3 seconds minimum
Operating Temperature: -40 to +131°F (-40 to +55°C)
Size:
     Standard: 10-1/2" L x 1" Diameter (26.7 cm L x 2.5 cm Dia.)
     Online: 15-1/2" L x 2-1/2" Diameter (39.4 cm L x 6.3 cm Dia.) (end cap)
Weight:
     Standard: 8 oz (227 g)
     Online: 22 oz (623 g)
ORP Sensors Options & Prices
Prices listed are for United States and Canada only.  Call or e-mail us for pricing in other countries.
Terms and Conditions

WQ600 Redox/ORP Sensor (PN# DE0000)
Includes 25 ft of cable.
Pricing
WQ600-O Online Redox/ORP Sensor (PN# DEA000)
Comes with 1-¼ inch NPT PVC housing.
Pricing
WQEXC Extra Cable (PN# DH0000)
Standard ORP sensors include 25 ft of cable, but can be purchased with up to 500 ft of cable.
Pricing
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