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REFEXª Series 399 NPT pH Combination Electrode
  • REFEXª Series 399 NPT pH Combination Electrode
REFEXª Series 399 NPT pH Combination Electrode

REFEX REFEXª Series 399 NPT pH Combination Electrode

Available to order

Try a REFEX probe in your plant and see the REFEX difference firsthand.

 

Maintenance free REFEX™ Series 399 electrodes are designed for pH measurement in rugged applications. Series 399 combination electrodes feature the patented REFEX Contact Window, a non-porous, hard ionically conductive interface/barrier to prevent reference electrode electrolyte loss and poisoning.

Measuring Method: pH / reference combination electrode

Reference: Patented non-porous REFEX interface.

Junction/Half Cell: Ag/AgCl in KCl 2.8 mol/l (sealed for life)

Range: pH 0...12

Eo Zero vs Ag/AgCl: pH = 6.8 (+/- 20 mV)

Impedance pH-glass/ref: 200 MΩ Nom. / <100 kΩ

Temperature Range: 0...100°C / 212°F

Pressure Range: 0...20 bar / 290 psi

Liquid Earth: Optional 316 SS LE available

Temperature Sensor: Optional 100Ω/1000Ω RTD

Standard Dimensions: 1” NPT threaded bodies

Electrode Body Material: PVDF standard; Triton optional

Electrical Connection: Cable 1m, 5m, 10m, others

Recommended Storage: Hydrate in 2.8 mol/l KCl, ambient temp.

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REFEX Series 399 Brochure

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