Long-Term Stable and Accurate Measurements
The capacitive sensor in the FL 510 ensures long-term stable and reliable relative humidity measurements without frequent recalibration.
CS Instruments – FL 510
Stable and precise measurement of relative humidity and process temperature with the ability to calculate additional humidity parameters – even at high pressures.
| Measuring Range: 0…100 % RH |
| Temperature Range: 0…125 °C |
| Temperature Accuracy: ±0.2 °C |
| Max. Pressure: up to 300 bar |
| Outputs / Communication: 2× 4–20 mA, Modbus RTU (RS-485) |
| Protection Class: IP66 |
| Measuring Range: 0…100 % RH |
| Temperature Range: 0…125 °C |
| Temperature Accuracy: ±0.2 °C |
| Max. Pressure: up to 300 bar |
| Outputs / Communication: 2× 4–20 mA, Modbus RTU (RS-485) |
| Protection Class: IP66 |
- FL 510 – Industrial Humidity TransmitterIndustrial humidity transmitter with a capacitive sensor for measuring relative humidity and process temperature. Includes two 4–20 mA analog outputs and Modbus RTU (RS-485) communication for industrial integration.
- Capacitive Humidity SensorLong-term stable and accurate sensor for measuring relative humidity in non-corrosive gases, suitable even for demanding industrial environments.
- IP66 Industrial HousingRobust IP66-rated design suitable for industrial applications and operation across a wide temperature range.
| Parameter | FL 510 |
|---|---|
| Measured Medium | Non-corrosive gases (media-independent measurement) |
| Relative Humidity Measuring Range [% RH] | 0 … 100 |
| Accuracy (0 … 90 % RH) [% RH] | ±1.8 (at +23 °C) |
| Accuracy (90 … 100 % RH) [% RH] | typically ±2 (at +23 °C) |
| Temperature Measuring Range [°C] | 0 … 125 |
| Temperature Accuracy [°C] | ±0.2 |
| Process Temperature [°C] | -20 … +125 |
| Ambient Temperature [°C] | -20 … +70 |
| Maximum Pressure [bar] | up to 300 |
| Interfaces / Outputs | 2 × analog output 4–20 mA (3-wire technology), Modbus RTU (RS-485) |
| Power Supply [VDC] | 24 (10 … 36) |
| Protection Class | IP66 |
| EMC | DIN EN 61326-1 |
| Thread Material | 1.4404 |
| Perforated Cap Material | 1.4301 |
| Electrical Connection | M12, 8-pin |
Precise Humidity Monitoring in Industrial Processes
Multiple Humidity Parameters in One Sensor
In addition to relative humidity and process temperature, the transmitter calculates absolute humidity (g/m³), moisture content (g/kg), and humidity concentration (ppmV/V).
Flexible Outputs and Industrial Communication
Two freely configurable 4–20 mA analog outputs and Modbus RTU (RS-485) communication allow easy integration into existing monitoring systems.
Reliable Operation at High Pressures
The sensor is suitable for applications with operating pressures up to 300 bar, enabling measurements in gas pipelines and pressurized systems.
Measurement in Inert and Non-Corrosive Gases
Media-independent measurement allows use in inert gases such as nitrogen, argon, and other non-corrosive process gases.
Designed for Demanding Industrial Environments
Its IP66-rated housing and wide temperature range ensure reliable operation in industrial facilities, laboratories, and electronics manufacturing under inert atmospheres.
Process Gases
Industry & EnergyPrecise humidity measurement in gas pipelines and pressurized systems with non-corrosive gases, even at pressures up to 300 bar.
Chemical Industry
Process IndustryReliable humidity monitoring in evaporation processes, gas storage applications, and quality control within chemical production.
Electronics Industry
High TechnologyHumidity monitoring in inert atmospheres (e.g., nitrogen, argon) used in electronics manufacturing and sensitive component production.
Laboratories
Research & MonitoringHumidity measurement and monitoring in laboratories with specialized gas requirements and a strong need for repeatable measurements.
Measuring devices
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Humidity Measurement
Choose the right sensor for monitoring humidity in oils, gases, and ambient air. The portfolio includes sensors for water activity in oils, relative humidity in gases, and comprehensive monitoring of environmental conditions.
