Peracetic acid concentration sensor P10.1

for water

Overview
The German-made P10.1 peracetic acid (PAA) sensor is an amperometric two-electrode device with a membrane cover, designed to measure PAA across a wide range (0–50000 ppm). It is intended for industrial water treatment applications (including seawater), resists conductive acids and surfactants, and provides mechanical durability. The sensor features automatic temperature compensation, IP65/IP68 protection classes depending on connector, and multiple output options. No zero adjustment is required. EMC-tested and RoHS-compliant for reliable process monitoring.

Special features

• Membrane-covered amperometric 2-electrode measuring system
• High chemical tolerance (suitable for aggressive media)
• High surfactant resistance and mechanical robustness
• Automatic temperature compensation via integrated sensor
• Connector-dependent protection: IP65 / IP68

Applications

• All types of water treatment (including seawater)
• Pharmaceutical industry process water
• Food & beverage production and CIP systems
• Dairy industry hygiene monitoring
• Chemical industry (e.g., bottle washers, CIP plants)

Process conditions

• Measuring water temperature: 0 … +45 °C (no ice crystals)
• Ambient temperature: 0 … +55 °C
• Allowed pH range: pH 1 – pH 8
• Max. working pressure: up to 1 bar (installation-dependent; avoid pressure surges/vibrations)
• Flow in flow cell (face velocity): approx. 15–30 L/h

Technical specification (table)
Measurement parameter: Peracetic acid (PAA)
Measuring ranges / resolution: 0…20 ppm: 0.01 ppm; 0…200 ppm: 0.1 ppm; 5…2000 ppm: 1 ppm; 0.005…2 % (20000 ppm): 0.001 % (10 ppm); 50…5000 ppm: 1 ppm; 0.05…5 % (50000 ppm): 0.01 % (100 ppm)
Response time: T90 ≈ 3.5 min (10 °C); ≈ 1.5 min (50 °C)
Temperature compensation: Automatic (integrated temperature sensor; avoid sudden temperature changes; T90 for temp sensor ≈ 8 min)
Run-in time (first start-up): range-dependent — 200 mg/L ≈ 3 h; 2000 mg/L ≈ 1 h; 20000 mg/L ≈ 30 min
Zero point adjustment: Not necessary
Protection: 5‑pole M12 plug flange IP68; 2‑pole terminal with mA hood IP65
Materials: elastomer membrane, PVC‑U, stainless steel 1.4571

Technical specifications

• Model: P10.1
• Target: Peracetic acid (PAA)
• Measuring ranges/resolution: see table (up to 0.05…5 % / up to 50000 ppm)
• Response time: T90 ≈ 3.5 min (10 °C) / ≈ 1.5 min (50 °C)
• Measuring water temp: 0 … +45 °C; Ambient: 0 … +55 °C
• Automatic temperature compensation (integrated)
• pH range: 1–8
• Max. allowed pressure: typically up to 1 bar (installation-dependent)
• Flow: approx. 15–30 L/h in flow cell
• Protection class: IP65 / IP68 (connector-dependent)
• Materials: elastomer membrane, PVC‑U, stainless steel 1.4571
• Suitable for seawater and chemically aggressive media; high surfactant resistance
• Standards: EMC-tested, RoHS-compliant