WEL pH and ORP Electrodes




WEL pH/ORP Electrodes

Walchem's WEL Series electrodes are cost-effective differential pH and ORP electrodes
for industrial applications. They are modular in design with a rugged CPVC housing that
contains the electronics; pH and ORP cartridges can easily be connected or replaced in
minutes without tools.

    • 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
Measurement Performance
Range 0 to 14 pH (0 to 12 without sodium ion error) ±1999 mV (ORP)
Response 95% in less than 5 seconds
Temperature Range with preamplifier 32 to 158ºF (0 to 70ºC)  
  without preamplifier 32 to 212ºF (0 to 100ºC)  
Pressure Limit 100 psi

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