HIH-4602-C

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Humidity, Moisture Sensors

The HIH 4602 C is an industrial grade humidity and moisture sensor developed by Honeywell, and is designed to meet the needs of a wide variety of applications. The HIH-4602-C is capable of detecting relative humidity (RH) and temperature range from 0 to 100 percent, and is capable of reading temperatures as low as -40°C to as high as 85°C. It is used in numerous industries, but is especially useful for industrial process automation, building environment systems, flood and dampness control, and agricultural sensing applications.

Applications

The HIH-4602-C is used in a variety of industrial and commercial applications. Its most common applications include:

• air-conditioning systems
• smart home automation
• automotive climate control
• food and beverage processing
• flywheel storage systems
• agriculture and horticulture monitoring
• medical and veterinary equipment sensing and monitoring

Working Principle

The HIH-4602-C utilizes a capacitive polymer sensing element to detect moisture and relative humidity levels in the environment. The special polymer consists of two electrodes separated by an electrolyte. The electrostatic capacity between the two electrodes is proportional to the moisture content of the air that comes in contact with the polymer. The analog output of the sensor is used to measure relative humidity and temperature.

For accurate readings, the HIH-4602-C must be calibrated regularly. Calibration is necessary to compensate for any environmental changes that may occur, such as temperature and pressure variations, or changes in the dielectric constant of the sensing medium. The calibration data is stored in non-volatile memory and can be uploaded to a computer for analysis. In addition, the HIH-4602-C also features an alarm output which can be used to indicate out-of-range conditions.

In order to ensure reliable operation, the HIH-4602-C must be properly installed and protected from any corrosive or mineral deposits. All electrical connections must be tight and secure to prevent moisture from entering the sensor. The HIH-4602-C is constructed to be durable and waterproof, and its sensing element is sealed in a plastic housing to protect it from outside contamination.

Conclusion

The HIH-4602-C is a versatile and reliable humidity and moisture sensor that is used in a wide variety of applications. Its low cost and easy installation make it popular among businesses and homeowners alike. With its wide temperature range and durable construction, it is an excellent choice for monitoring humidity and moisture levels in harsh environments.

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