https://cablematic.com/en/products/pce-wm1-hygrometer-PC365/
PCE-WM1 Hygrometer
- Determine relative [%] and absolute [g/m³] humidity accurately.
- Measure environmental conditions (ambient temperature, relative humidity).
- Determine the surface temperature of walls or products.
- Determine the dew point (dew point temperature).
- Calculate and display relative humidity in g/m³.
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- Determine relative [%] and absolute [g/m³] humidity accurately.
- Measure environmental conditions (ambient temperature, relative humidity).
- Determine the surface temperature of walls or products.
- Determine the dew point (dew point temperature).
- Calculate and display relative humidity in g/m³.
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More info
This device is ideal for determining relative [%] and absolute [g/m³] humidity with high precision. In addition, thanks to the included external temperature sensor, it is possible to determine the ambient temperature and the surface temperature of walls or products. In addition, the absolute humidity meter offers additional information about the dew point (dew point temperature). It can be used in the construction industry or in the food sector. It is delivered factory calibrated without a certificate, but it can be recalibrated in any DIN ISO accredited laboratory. If necessary, it can be sent for recalibration (annual or according to ISO control manual specifications). This measurement tool is very useful for a variety of applications, as it can accurately measure absolute and relative humidity, as well as ambient temperature and dew point. It is a versatile appliance that can be used in a wide range of sectors. Manufactured by PCE with reference PCE-WM1.
Specifications
- Determine relative [%] and absolute [g/m³] humidity accurately.
- Measure environmental conditions (ambient temperature, relative humidity).
- Determine the surface temperature of walls or products.
- Determine the dew point (dew point temperature).
- Calculate and display relative humidity in g/m³.
- Employed in the construction sector or in the food sector.
- Ideal for: Product development in industry, control of environmental conditions, determination of surface temperature of walls or products, determination of relative [%] and absolute [g/m³] humidity.
- Compatibilities: External temperature sensor.
- Connections: Not applicable.
- Features: Factory calibrated absolute humidity meter, high accuracy, additional dew point information.
- Gray.
- Gross Weight: 895 g
- Number of packages: 1
Technical terms
- Hygrometer
- DIN
A hygrometer is a precision instrument designed to measure relative humidity in the atmosphere or within specific technical enclosures using water vapor sensitive transducers.
Implementation of these devices in modern systems is primarily based on the variation of physical properties in dielectric or semiconductor materials. In industrial environments and data centers, electronic hygrometers utilize capacitive or resistive sensors that modify their impedance proportionally to environmental saturation. This data is processed via microcontrollers to facilitate real-time monitoring and automation of HVAC systems through industrial communication protocols.
| Technical Parameter | Standard Specification |
|---|---|
| Measurement Range | 0% to 100% RH |
| Typical Accuracy | ±1.5% to ±3% RH |
| Response Time | < 10 seconds (t90) |
| Output Interface | I2C, 4-20mA, 0-10V |
The integration of digital hygrometers into critical infrastructure enables proactive condensation management, a decisive factor in preventing corrosion-related failures and short circuits in high-density hardware. Their recent evolution toward MEMS technology has facilitated miniaturization and the incorporation of these sensors into massive IoT deployments, where energy efficiency and long-term stability are fundamental requirements for predictive maintenance.
Capacitive Transduction Technology
Most advanced electronic hygrometers employ a dielectric polymer placed between two electrodes. As it absorbs water vapor, the polymer's dielectric constant changes, altering the circuit's total capacitance. This method is noted for its linearity and relative resistance to chemical contaminants.
Main Advantages
- High thermal stability across wide operating ranges.
- Low power consumption, ideal for remote sensors.
- Direct integration capability with PLC control systems.
- Fast response to critical humidity fluctuations.
Note: Periodic calibration under traceable standards is necessary to mitigate sensor drift.
