Dew Point Controller Sensor Manufacturer
We are a leading Dew Point Controller Sensor manufacturer and supplier in Ahmedabad, Gujarat, providing microprocessor-based instruments designed for compressed air dryers, gas quality testing, plastic dryers, additive manufacturing, and OEM applications. The AIDP24C Dew Point Controller with Sensor combines advanced sensing technology with a smart controller that delivers 4–20 mA analog output and RS-485 Modbus RTU communication, allowing seamless integration into industrial monitoring systems. Engineered for precision and durability, it provides real-time dew point monitoring for effective air quality control and energy-efficient operation.
Understanding and maintaining dew point levels in compressed air systems is critical to ensuring performance and reliability. High dew points can lead to condensation, corrosion, freezing, and equipment malfunction, while consistent dew point control prevents moisture-related failures. The AIDP24C Dew Point Controller helps industries maintain dry, high-quality compressed air, ensuring safe and efficient operation in applications such as paint spraying, pharmaceuticals, food processing, and medical gas systems.
What is the typical range of dew point temperatures to be found in compressed air?
Dew point temperatures in compressed air range from ambient down to -80 °C (-112 °F), sometimes lower in special cases. Compressor systems without air drying capability tend to produce compressed air that is saturated at ambient temperature. Systems with refrigerant dryers pass the compressed air through some sort of cooled heat exchanger, causing water to condense out of the air stream. These systems typically produce air with a dew point no lower than 5 °C (23 °F). Desiccant drying systems absorb water vapor from the air stream and can produce air with a dew point of -40 °C (-40 °F) and drier if required.
What are the standards for the quality of compressed air?
ISO8573.1 is an international standard that specifies the quality of compressed air. The standard defines limits for three categories of air quality:
* Maximum particle size for any remaining particles
* Maximum allowable dew point temperature
* Maximum remaining oil content
Each category is given a quality class number between 1 and 6 according to the reference values shown in the table below. As an example, a system that conforms to ISO8573.1 and is rated for class 1.1.1 will provide air with a dew point no higher than -70 °C (-94 °F). All remaining particles in the air will be 0.1 um or smaller, and the maximum oil content will be 0.01 mg/m3. There are other standards for compressed air quality, such as ANSI/ISA- 7.0.01-1996 for instrument air.
- Bright OLED LCD Display.
- Fast Sensing Time.
- 2nos Relay output.
- Analogue 4-20mA output.
- RS485 Modbus interface output.
- Dew Point, Humidity & Temperature on Same Screen.
| Specification | Parameter | Description |
|---|---|---|
| Power | 90 ~ 260VAC @ 50Hz | |
| Measuring Range | -100 ~ 60°Cdp | |
| Accuracy | ±2% ~ 3°Cdp | |
| Display | OLED LCD | |
| Digital Output | 2 nos. Relay 3A 1CO | |
| Analog Output | 4–20mA | |
| Communication | RS485 Modbus RTU | |
| Sensor MOC | S.S. 304 | |
| Sensor Filter MOC | S.S. 316 | |
| Flow Cell MOC | S.S. 304 | |
| Interface Cable | 6 Meters | |
| Max. Pressure | 15 Bar | |
| Current Consumption | 135mA | |
| Size | 96 × 96 × 85 mm | |
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Compressed Air Systems:
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HVAC Systems:
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Industrial Drying Processes:
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Metal Heat Treatment:
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Breathing Air and Glove Box Monitoring:
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Other Applications:
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Data Logging and Reporting:Using RS485 Modbus Communication at PC Software.
Frequently Asked Questions (FAQs)
What is a Dew Point Controller with Sensor?
A Dew Point Controller with Sensor is an electronic instrument used to measure and control the dew point temperature (moisture level) in compressed air and gas systems. It ensures that air remains dry and free from condensation-related issues.
What is the AIDP24C Dew Point Controller?
The AIDP24C is a microprocessor-based dew point controller equipped with a built-in sensor, 4–20 mA analog output, and RS-485 Modbus RTU communication for industrial system connectivity.
Why is dew point control important in compressed air systems?
Monitoring dew point helps prevent condensation, corrosion, and freezing inside pipes or equipment. It also maintains product quality and system efficiency in sensitive applications such as paint spraying, food, and pharmaceuticals.
What is the working principle of a dew point controller?
The sensor continuously measures temperature and relative humidity to calculate the dew point temperature. The controller then uses this data to monitor and control air dryers or alert systems based on predefined thresholds.
In which applications is this controller used?
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Compressed air dryers
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Plastic dryers and extrusion lines
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Additive manufacturing
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Pharmaceutical and medical air systems
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Gas generation and distribution systems
What are the typical specifications?
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Measuring Range: –100 °C dp to +60 °C dp (model dependent)
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Output: 4–20 mA / RS-485 Modbus RTU
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Power Supply: 24 VDC
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Display: Digital LCD / OLED
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Mounting Type: Panel mount
What are the advantages of using a microprocessor-based controller?
It provides higher measurement accuracy, real-time data processing, stable operation, and compatibility with PLC/SCADA systems, making it ideal for industrial automation.
How does it differ from a handheld dew point meter?
While handheld meters (like ADP24H) are portable for spot-checking, the AIDP24C Dew Point Controller is designed for continuous, fixed installation monitoring in industrial environments.