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HG602-C RS485 4-20mA 0-5V 0-10V dew point sensor transmitter

Brand: Nexisense

Model: HG602-C

Output: RS485 4-20mA 0-5V 0-10V

Power: DC 10V ~ 28V (12V power supply recommended)

IP Rating: IP65

Range: -30~50°

Descripción: HG602 is mainly used for low dew point data measurement in battery production, electronic component production, semiconductor manufacturing, etc. It can also be installed as a component in industrial applications such as drying systems, compressed air systems, constant temperature and humidity systems, to detect the actual humidity in the gas.Using the standard Modbus-RTU protocol, it can easily realize the interconnection with PLC, DCS and various configuration software

Products Description

Product Definition: TheCore Component for Industrial Dew Point Monitoringin Refrigerated Drying Systems

The HG602-C Series Dew Point Transmitter, developed by Nexisense, is a high-performance dew point detection device specifically designed forrefrigerated dryers and compressed air systems.Its main advantages are precise measurements,rapid response, dual signal outputs,and excellent resistance to oil and corrosion, making it particularly suitable for long-term monitoring of air dryness in complexindustrial environments.

Working Principle:Capacitive Sensing Technology Combined with Smart Temperature Control System

The HG602-C usesa high-sensitivity capacitive polymer dew point sensor, which accurately calculates the dew pointtemperature based on changes in water vaporpartial pressure in the air. Thesensor detects changes in the dielectric constantand, combined with built-in temperature compensation algorithms and a microprocessor unit, ensures rapid response and high-precision output.

Furthermore, in environments with alternating highhumidity and low dew points, thedevice features automatic heating anti-condensationfunctionality, which intelligently activates probe heatingto prevent water vapor condensation from affectingsensor accuracy, ensuring data reliability.

Product Structure Analysis: Compact Industrial DesignBalancing Durability and Integration

The HG602-C boastsa simple yet compact design, making it adaptable for various OEM and retrofit installationrequirements:

  • SensorProbe: Houses a capacitive sensor coated with a corrosion-resistantlayer, resistant to compressor oils andvarious chemical gases.

  • Main Control Module: Integrates digital control, data processing, and signal conversion circuits.

  • Interface Ports: Supportsstandard RS485 Modbus RTU communication and various analog outputs.

  • Enclosure Material: Industrial-grade stainless steel or ABS plastic, ensuring long-term operational stability.

MeasurementMethods and Performance:6-Second Response Time, Precise and Stable

The HG602-C supports continuous online measurement, with a typical response time of 6 seconds under wind speeds of 1 m/s. It provides real-time, dynamicdew point data feedback. The device undergoes multi-point calibrationduring manufacturing and supports customized calibration forspecific use cases.

It can be interfaced with standard PLC or SCADA systems to read dew pointvalues in real-time, enabling automatic drying control or abnormalwarning functions, improving equipment safety and energy efficiency.

Technical Specifications

ItemParameter
BrandNexisense
ModelHG602-C Series
Dew Point Measurement Range-60°C ~ +50°C
Measurement Accuracy±2°C Td (in air or nitrogen)
Response TimeApprox.6 seconds (wind speed of1 m/s)
Output SignalRS485 (Modbus RTU) + 0~5V / 0~10V / 4~20mA (optional)
Digital Resolution0.01°C / 0.1°C, 0.01%RH / 0.1%RH (optional)
Probe Operating Temperature-20°C ~ +50°C
Pressure Resistance16 bar
Anti-Condensation FunctionSupports automatic probe heating
Communication BaudRate1200 /2400 / 4800 / 9600 /19200 (default 9600)
Communication Format8 data bits,1 stop bit, no parity
Power SupplyVoltageDC10~30V (12V recommended for 4-20mA output)
Max Power Consumption< 0.1W
Factory CalibrationComplete calibration, custom calibration available for special applications

Smart Compatibility and Industrial Integration Advantages

The HG602-C is highly suitable for integration with variousindustrial automation systems, providing plug-and-play compatibility with Modbus protocolsand easily connecting to PLCs, DCS, and industrial computers.Its multiple analog outputs also make iteasy to interface with traditional systems,enabling seamless upgrades for old equipment.

By continuously monitoring the dewpoint, enterprises can effectively achieve:

  • Optimizationof drying equipment operation

  • Compliance control ofcompressed air quality (ISO8573-1 standard)

  • Energy management and equipment longevity

  • Enhanced production yield and safety

EasyInstallation and Maintenance

The Nexisense HG602-C is designed for ease of installation. Userscan choose between standard M12 industrialconnectors or custom cables, with flexibleprobe mounting options such as T-type connectors, threaded connections, or custommounting brackets.

The sensor is highly stable andfeatures long-term drift control. Under normal operating conditions, it requires recalibration only every2 years. Calibration services andremote technical support are also available.

Summary: The Precision, Efficiency, and Durability of the HG602-C DewPoint Transmitter

The NexisenseHG602-C Series Dew Point Transmitterstands out as the ideal choice for compressed air systems and dryers, offering excellent measurement performance, robustanti-interference and anti-condensation capabilities,and flexible industrial integration options. Whetherfor new project integration or old system retrofit, the HG602-C provides a professional and cost-effective solution to help businesses buildintelligent and stable gas drying control systems.

For dew point instruments, trust Nexisense. Precision control starts with HG602-C.

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