https://cablematic.com/en/products/hygrometer-with-analog-output-pce-g1a-PC535/
Hygrometer with analog output PCE-G1A
- Seven-segment LED display with a digit height of 100 mm.
- Reading capacity up to 50 m.
- Protection class IP 54.
- Indication of relative humidity and temperature in 5 second intervals.
- Sensors mounted by connectors with a 1 m cable.
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- Seven-segment LED display with a digit height of 100 mm.
- Reading capacity up to 50 m.
- Protection class IP 54.
- Indication of relative humidity and temperature in 5 second intervals.
- Sensors mounted by connectors with a 1 m cable.
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The large display hygrometer is a relative humidity and temperature measuring device designed for fixed installation. Its seven-segment LED display is 100mm high for optimal reading even from 50m away. It has an IP54 protection, so it is weather resistant and can be mounted on a wall. The display shows the measurement values every 5 seconds. The sensors are connected by a one meter cable so that the sensors and the display are separated. It has two channels with 4-20 mA analog output to record, control and regulate measurements. These sensors are delivered factory calibrated, although an ISO calibration certificate can be requested. Manufactured by PCE, with reference PCE-G1A.
Specifications
- Seven-segment LED display with a digit height of 100 mm.
- Reading capacity up to 50 m.
- Protection class IP 54.
- Indication of relative humidity and temperature in 5 second intervals.
- Sensors mounted by connectors with a 1 m cable.
- Two channels with 4-20 mA analog output.
- Possibility of registering, controlling and regulating measurements.
- Possibility of requesting an ISO calibration certificate.
- Gross Weight: 2.125 kg
- Number of packages: 1
Technical terms
- Hygrometer
- LED
- IP54
- IP Protection
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.
