The WEL Series are modular in design with a rugged CPVC housing that contains the electronics. ORP cartridges can easily be connected or replaced in minutes without tools. The cartridges feature a unique threaded interlock connection and a double o-ring seal, ensuring a watertight fit and secure seating at all times.

There are two choices of ORP electrode cartridge. The WEL-MVF-NN is a flat surface platinum electrode which will work in almost any application. The WEL-MVR-NN uses a platinum rod and is used where the oxidizer level is below 0.25 mg/l.

Key Benefits:

• Differential preamp
• Universal mounting, easy to install
• Easily replaceable electrode cartridges
• Electronics are not discarded with the electrode
• Optional ATC
• Cartridge Styles:
  • Flat Surface
  • Bulb / Rod
  • HF Resistant
  • Low Ionic Strength pH cartridge
• Resistant to electronic noise, ground loops
• CE Performance & Safety Certifications