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Part#: 28389
Weight: 3.0 lbs
Brand: USABlueBook

USABluebook Differential ORP Electrode with 15'L Cable

  • Rebuildable electrodes for water and wastewater applications
  • Delivers measurements in difficult conditions where conventional electrodes fail
  • New models with built-in two-wire transmitter feed directly to a PLC or DCS—no controller or display required!
Price: $659.95
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Need Help? Call 800-548-1234

USABlueBook’s rugged, rebuildable pH and ORP differential electrodes use the differential measurement technique, which maintains accuracy and stability in aggressive process applications long after conventional electrodes break down. They feature an internal three-electrode design that improves on the typical two-electrode design of most pH/ORP electrodes and eliminates ground loop problems.

These double-junction electrodes have a Ryton and Kynar body with 1-1/2" (M)NPT threads on both ends for immersion or in-line mounting.

Choose from standard differential electrodes or electrodes with a built-in 4-20 mA output

Standard electrodes are compatible Hach/GLI analog controllers and transmitters, such as the sc200 (stock # 38051 ), the PRO P3 (stock # 28157) and legacy GLI P53 controllers. They have a built-in encapsulated preamplifier that produces a signal detectable up to 2,000 feet from the controller or transmitter. The 15-ft shielded cable with stripped ends extends up to 2000 feet with optional junction box and extension cable.

Electrodes with 4-20 mA output feature a built-in loop-powered 4-20 mA transmitter. This lets you feed the signal directly into a SCADA, PLC or DCS without the need for an expensive controller or display. The two-conductor, twisted pair cable is 15 feet long. Order shielded instrument wire (stock # 42740) if longer runs are needed.

Note: The 4-20 mA output is non-isolated and uncalibrated. The instrument or PLC must provide 24 VDC to power the electrode, and be able to calibrate for offset and span.

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