Relative moisture sensor FL-WAPP Flow

for liquidsin-linemicrowave

Product overview
The FL-Wapp Flow is a microwave moisture sensor designed for continuous measurement of moisture and water content in pumpable media. It provides reliable readings for liquids and viscous materials such as shotcrete, sprayed mortars, refractory products, suspensions and sludges. The sensor features a stainless steel housing, aluminium oxide ceramic measuring surface and IP67 protection for use in demanding industrial environments.

Usage and applications
Designed for inline installation in pipelines, screw conveyors and mixers with small diameters. Typical applications include process control and quality monitoring in construction material production (shotcrete, mortars), refractory manufacturing, sludge handling, and other fluid or viscous media dosing and mixing processes.

Special Features

• Easy installation in common pipelines
• Suitable for small-diameter pipes, screw conveyors and mixers
• Wireless parameterization and calibration via WLAN-capable devices (software / Android app)
• Proven microwave measuring principle for moisture content
• Additional temperature measurement

Technical Data
Measuring method: Microwave / 433 MHz
Power supply: 12–24 V DC
Output (analog): Moisture: 0–20 mA or 4–20 mA; Temperature: 4–20 mA
Input (digital): Start measurement 12–24 V
Measuring range: 0–15.0 % or material-dependent ranges; Temperature: 0–80 °C (176 °F)
Operating temperature: up to 70 °C (158 °F)
Accuracy: approx. ±0.3 % (depending on range and material)
Power consumption: 1.5 W (max 2 W)
Parameterization / measured values: via wireless Wi‑Fi interface with software or Android app
Cable connection: 5 × 0.25 mm² shielded (foil shield), L = 2 m, miniature round 5‑pole connector
Sensor dimensions (stainless steel): Sensor L: 100 mm, W: 20 mm, H: 25 mm; Base plate L: 140 mm, W: 30 mm; Protection: IP67
Measuring surface: aluminium oxide ceramic
Measurement tube: Stainless steel Ø 1.5" or 2" (other diameters on request)
Weight: 1.5 kg

Technical specifications

• Measuring principle: Microwave / 433 MHz
• Supply voltage: 12–24 V DC
• Analog output (moisture): 0–20 mA or 4–20 mA; Temperature: 4–20 mA
• Digital input: Start measurement 12–24 V
• Measuring range: typically 0–15.0 % (material-dependent)
• Temperature measuring range: 0–80 °C; Operating temperature up to 70 °C
• Accuracy: approx. ±0.3 % (depends on range/material)
• Power consumption: 1.5 W (max. 2 W)
• Parameterization: wireless via Wi‑Fi (software/Android app)
• Cable: 5 × 0.25 mm² shielded, 2 m with 5‑pole miniature round connector
• Protection classes: Sensor IP67
• Measuring surface material: aluminium oxide ceramic
• Weight: approx. 1.5 kg