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Products Description
Product Overview
The Nexisense HG808-A Series is a high-performance, high-stability online dew point transmitter built for extreme industrial environments. Withstanding up to 180°C, it provides real-time monitoring of dew point and temperature for gases and airin demanding applications like lithium battery production, semiconductors, and compressed air systems.
Working Principle
Using thin-film capacitive sensor technology and microprocessor-based temperature compensation, the HG808-A detects water vapor partial pressure and computes accurate dew point values in real time. Its signal processing module ensures fast conversion and stable output.
Fast 1-second response time
High-accuracytemperature compensation
Anti-contamination, anti-condensation design
Multi-protocol output: RS485, analog
Structural Composition
Measurement Probe: HG808-5B, stainless steel, corrosion-resistant
Signal Processing Unit: Industrial-grade MCU
LCD Display: Real-time dew pointand temperature
Output Interface: RS485 / 4–20mA / 0–5V / 0–10V
Pressure Resistance: Up to 16 bar
Measurement Modes & Output Formats
Measurement: Dew Point, Temperature, Relative Humidity (calculated)
Digital Output: RS485,Modbus RTU, 9600 bps (default)
Analog Output: 4–20mA, 0–5V, or0–10V (selectable)
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Nexisense |
| Model | HG808-A Series |
| Dew Point Range | -20°C to +100°C |
| Dew Point Accuracy | ±3°C Td |
| Temperature Range | -40°C to +180°C |
| Temperature Accuracy | ±0.1°C (@20°C) |
| Long-Term Stability | < 0.1°C/year |
| Pressure Resistance | 16 bar |
| Operating Circuit Temp | -20°C to +60°C (0–95% RH) |
| Display | LCD, real-time values |
| Sampling Rate | 1s |
| Communication Baud Rate | 1200–115200 bps (default 9600) |
| Output Options | RS485 / 4–20mA / 0–5V / 0–10V |
| Installation | Threaded, flange optional |
| Material | SUS stainless steel with protective coating |
Applications
Lithium Battery: Moisture control in drying rooms
Compressed Air: Prevents corrosion and blockages
Semiconductors:Controls cleanroom humidity
Air Separation: Ensures gas purity and stability
Power Systems: Prevents insulation failure in cabinets
Protective Gases: Prevents oxidation in electronics
Why Choose Nexisense HG808-A?
Supports extreme 180°C environments
±3°C Td and ±0.1°C temperature accuracy
Contamination-resistant for long-term reliability
Plug-and-play integration with PLCs, DCS
On-device LCD for quick diagnostics
Conclusion
The HG808-A Series offers industrial-grade precision, wide-range adaptability, and robust durability for critical humidity monitoring needs. From battery and semiconductor industriesto compressed gas and power systems, it ensures consistent performance and peace of mind.
Choose HG808-A — choose reliability, precision, and efficiency.
For datasheets, application consultation, or technical support, contact the Nexisense Official ServiceTeam.
