Yokogawa FU20‑20‑T2‑NPT
- Product Name: pH Sensor Electrode (Industrial Online pH Probe)
- Product Series: Yokogawa FU20 Series General‑Purpose pH Sensor
- Product Introduction: Industrial online pH value measurement sensor, used for continuous real‑time monitoring of liquid pH value in industrial processes, with NPT thread interface for pipeline installation, T2‑grade high‑temperature resistance design.
Detailed content
- Technical Specifications & Performance Parameters:
- Measurement Range: pH 0‑14
- Operating Temperature Range: 0°C ~ +90°C (T2 high‑temperature grade)
- Pressure Resistance: Up to 1MPa
- Interface Type: 3/4″ NPT male thread
- Electrode Material: Glass pH‑sensitive membrane + PTFE reference liquid junction
- Cable Length: 20m (‑20 suffix indicates 20‑meter standard cable)
- Response Time: Less than 10s (95% response)
- Accuracy: ±0.01pH
- Function Features: High‑temperature and high‑pressure resistance; anti‑pollution liquid junction design; long‑life glass electrode material; compatible with Yokogawa PH series transmitters; stable measurement under high‑temperature liquid conditions.
- Material Composition: Electrode housing: PPS polyphenylene sulfide plastic; sensitive membrane: high‑temperature‑resistant pH‑specific glass; reference junction: porous PTFE material; cable: anti‑corrosion shielded cable.
- Structural Features: Cylindrical probe structure; NPT standard pipeline thread for quick installation; integrated temperature compensation element; sealed anti‑leakage structure.
- Working Principle: Detect hydrogen‑ion concentration in liquid via pH‑sensitive glass membrane, generate potential signal proportional to pH value, transmit to pH transmitter for signal conversion and display, built‑in temperature compensation for high‑precision measurement.
- Advantage Highlights: High‑temperature resistance; long service life; anti‑pollution and anti‑corrosion; high measurement accuracy; easy pipeline installation; stable continuous online monitoring capability.
- Applicable Industries: Water treatment, chemical industry, food and beverage processing, pharmaceutical manufacturing, electroplating industry, environmental protection monitoring, paper‑making industry.
- Installation Requirements: Installed on industrial pipelines/tanks via NPT thread; install vertically or 45° inclined to avoid bubble accumulation; immerse electrode in measured liquid ≥50mm; cable wiring uses shielded anti‑interference wiring.
- Usage Notes: Regular cleaning of electrode liquid junction; soak in standard buffer solution for calibration before use; avoid dry‑storage for long‑term; replace electrode when response time exceeds 30s.












