pH/ORP Controllers

pH/ORP Controllers


WDP Series

WDP/WPH Series  pH/ORP Controllers

Walchem's pH/ORP on-line process controllers will improve your treatment performance. With a choice of two models, WDP (Dual pH/ORP) or WPH (Single pH/ORP), finding the optimum control for your application is a snap. Both the WDP and WPH are microprocessor-based with an easy-to-use menu format for programming.  A versatile output configuration allows you to program up to four outputs in a variety of ways with just one controller. The WDP and WPH are available with either on/off mechanical relay outputs or direct pulse proportional control for metering pumps. Installation is as easy as unpacking the unit, mounting it and plugging it in.  UL/CSA/CE certified.
 
  • pH/ORP measurement
  • Probe Wash feature
  • Calibration reminder
  • Electrode evaluation after each calibration
  • Auto Buffer recognition
  • NEMA 4X system
  • Optional 4-20mA output(s)

 

 

   


WEL pH/ORP Sensor

System Compatibilty

WDP and WPH Series Controllers are a perfect match with Walchem's WEL pH/ORP electrodes - offering an extremely reliable differential measurement technique immune to any possible ground loop problems. Together they provide a true NEMA 4X system with no BNC connectors exposed to wet or corrosive conditions. Walchem's pH/ORP controllers and sensors are engineered to give you the most reliable measurement and control available.
 
  • In-line or submersion mounting
  • Hassle-free installation & electrode replacement
  • Resistant to electronic noise & ground loops
  • Differential technology provides longer life
  Instruction Manual
Brochure
   

pH/ORP Preampifier

What do you do when your favorite pH/ORP electrode isn't available with a built-in preamplifier, but you need to send the signal a few hundred feet?  Hook up to this external preamp and you can go 1000 feet if necessary!  Compatible with all of Walchem's controllers (but not the W-130/230 series monitors  L ).
 

  • NEMA 4X, epoxy coated, die-cast aluminum wall mount enclosure

  • Boost signal for reliable transmission up to 1,000 ft via 22 awg wire

  • No temperature simulation resistor required when used with Walchem controllers

  Brochure

 

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