Dew Point Transmitter for Industrial Moisture Measurement
A Dew Point Transmitter is an essential industrial instrument used to continuously measure moisture in compressed air, industrial gases and process applications. Accurate dew-point measurement helps industries monitor moisture levels and maintain the required conditions for their processes.
The Michell Instruments Easidew Dew Point Transmitter is designed for industrial dew-point and moisture measurement. It provides a measurement range of -110 to +20 °Cdp and can provide either dew-point or ppmV moisture output.
With its wide measurement range, reliable sensor technology and flexible installation options, the Easidew is suitable for various industrial applications, including compressed air, air dryers, industrial gases, hydrogen coolant, welding gases and glove boxes.
What Is a Dew Point Transmitter?
A Dew Point Transmitter is a measurement instrument that measures the temperature at which water vapor in a gas begins to condense.
The measured dew-point temperature provides an indication of the moisture content of the gas. This makes a Dew Point Transmitter particularly useful in systems where moisture control is important.
The Easidew series uses ceramic metal-oxide moisture sensor technology to provide stable, reliable and repeatable moisture measurement.
Why Is a Dew Point Transmitter Important?
Moisture can have a significant effect on compressed-air systems, gas systems and industrial processes. Continuous dew-point monitoring allows users to observe moisture conditions and identify changes in the process.
A Dew Point Transmitter can be used to:
- Monitor compressed-air quality
- Monitor air-dryer performance
- Measure moisture in industrial gases
- Monitor moisture in hydrogen-related applications
- Support process monitoring
- Detect changes in moisture conditions
- Maintain required moisture levels
The Easidew product range is specified for applications including compressed-air dryers, breathing air, hydrogen coolant, inert and bulk gases, glove boxes, welding gases, hazardous areas and oxygen purity.
Easidew Dew Point Transmitter – Key Features
The Easidew Dew Point Transmitter offers a wide measurement range from -110 to +20 °Cdp with an accuracy of ±2 °Cdp.
Key Features
- Wide dew-point measurement range
- Measurement range of -110 to +20 °Cdp
- Accuracy of ±2 °Cdp
- Dew-point or ppmV moisture output
- 4–20 mA, 2-wire output
- 12–28 V DC supply
- 316 stainless-steel construction
- Traceable 13-point calibration certificate
- Multiple process connection options
- IP66 protection for applicable configurations
- Modbus RTU over RS485 available with Easidew M12
- Intrinsically safe version available
- Sensor exchange and recalibration services available
Dew Point Transmitter Specifications
| Parameter | Easidew Specification |
|---|---|
| Measurement Range | -110 to +20 °Cdp |
| Accuracy | ±2 °Cdp |
| Repeatability | 0.5 °Cdp |
| Response Time | 5 minutes to T95, dry to wet |
| Output Signal | 4–20 mA, 2-wire |
| Moisture Output | Dew point or ppmV |
| Supply Voltage | 12–28 V DC |
| Maximum Operating Pressure | 525 barg |
| Operating Temperature | -40 to +60 °C |
| Housing Material | 316 Stainless Steel |
| Protection Rating | IP66 |
| Calibration | Traceable 13-point calibration certificate |
These specifications are based on the supplied Easidew Transmitters datasheet.
Dew Point Transmitter for Compressed Air
Compressed air is one of the most common applications for a Dew Point Transmitter.
Compressed-air systems use dryers to reduce moisture. Monitoring the dew point after the dryer provides information about the moisture condition of the compressed air.
The Easidew transmitter has a measurement range suitable for Class 1 to Class 6 industrial dryer applications.
A typical compressed-air system consists of:
Compressor → Air Dryer → Air Distribution System → Point of Use
Installing a Dew Point Transmitter at the appropriate measurement location enables continuous monitoring of the moisture condition of compressed air.
Dew Point Transmitter for Air Dryer Applications
Air dryers are used to remove moisture from compressed air. Monitoring the dew point helps users observe the moisture condition of the dried air.
A Dew Point Transmitter for air dryer applications can be useful for:
- Compressor OEMs
- Air dryer manufacturers
- Compressed-air system integrators
- Industrial plants
- Pneumatic equipment manufacturers
The Easidew range is designed to cover Class 1 to Class 6 industrial dryer applications.
Dew Point Transmitter for Industrial Gases
Industrial gases may require moisture monitoring to maintain specified process conditions.
The Easidew product range is designed for applications involving inert and bulk gases, welding gases, breathing air and hydrogen coolant, among other applications.
When selecting a Dew Point Transmitter for industrial gases, the gas type, operating pressure, temperature, process connection and required measurement range should be considered.
High-Pressure Dew Point Transmitter
Operating pressure is an important consideration when selecting a Dew Point Transmitter for high-pressure applications.
The Easidew transmitter has a maximum operating pressure of 525 barg (7,614 psig).
This makes the Easidew suitable for consideration in high-pressure gas and process applications where continuous moisture measurement is required.
Hazardous Area Dew Point Transmitter
The Easidew I.S. Dew Point Transmitter is available for hazardous-area applications.
The supplied datasheet lists certifications including ATEX, IECEx, UKCA, cQPSus and TR CU for the intrinsically safe version.
For hazardous-area installations, the appropriate certified configuration and installation method should be selected according to the application requirements.
4–20 mA Dew Point Transmitter
The Easidew Dew Point Transmitter provides a 4–20 mA, 2-wire output and can be configured across the specified measurement range.
The output can be configured for dew point or moisture content. The Easidew M12 version additionally supports Modbus RTU over RS485 communication.
This allows the instrument to be integrated into suitable industrial monitoring and control systems.
Dew Point Transmitter Process Connections
The Easidew range offers several process connection options for different industrial installations.
Available options include:
- 5/8″-18 UNF
- 3/4″-16 UNF
- G1/2″ BSP
- KF40 flange for glove-box applications
Electrical connection options include MiniDIN 43650 Form C and M12 5-pin connectors.
Dew Point Transmitter Calibration and Maintenance
Calibration is an important part of reliable moisture measurement.
The Easidew transmitter is supplied with a traceable 13-point calibration certificate. Michell also offers sensor exchange and recalibration services to help maintain sensor traceability and reduce downtime.
Regular calibration according to the requirements of the application can help users maintain confidence in their moisture measurement system.
Applications of Dew Point Transmitters
A Dew Point Transmitter can be used in a wide range of industrial applications.
Compressor and Air Dryer Applications
Used for monitoring moisture conditions in compressed-air systems and industrial dryers.
Pharmaceutical Industry
Used for suitable applications where moisture conditions need to be monitored.
Battery Manufacturing
Suitable for consideration in dry-room and process-gas moisture monitoring applications.
Industrial Gas Plants
Used for monitoring moisture in inert and bulk gases.
Hydrogen Applications
Suitable for applicable hydrogen-related moisture measurement requirements.
Chemical and Process Industries
Used for continuous moisture monitoring in suitable process-gas applications.
Welding Gas Applications
Used for monitoring moisture conditions in welding gases.
Glove Box Applications
The Easidew range includes a KF40 glove-box flange option.
How to Select the Right Dew Point Transmitter
Choosing the correct Dew Point Transmitter requires understanding the actual application and process conditions.
Consider the following parameters before selecting a transmitter:
- Dew-point measurement range
- Gas type
- Operating pressure
- Operating temperature
- Output signal
- Process connection
- Hazardous-area requirements
- Oxygen-service requirements
- Sampling system requirements
- Calibration requirements
Providing these details to an instrumentation supplier can help ensure the appropriate transmitter configuration is selected.
Dew Point Transmitter Supplier in India
Innovare Instruments Pvt. Ltd. provides Dew Point Transmitters and industrial measurement solutions for customers across India.
Our process instrumentation portfolio includes:
Dew Point | Moisture | Gas Analysis | Flow | Temperature | Pressure | Level | Liquid Analysis
We support customers with:
- Product selection
- Application engineering
- Technical consultation
- Calibration support
- Instrumentation solutions
- After-sales support
If you are looking for a Dew Point Transmitter in India, our technical team can help you identify a suitable solution based on your gas type, dew-point range, pressure, temperature, process connection and output requirements.
Request a Dew Point Transmitter
Contact Innovare Instruments Pvt. Ltd. for assistance with your industrial moisture measurement requirements.
Gas Type | Dew Point Range | Pressure | Temperature | Process Connection | Output Signal | Application
Innovare Instruments Pvt. Ltd.
Process Measurement & Instrumentation Solutions
Frequently Asked Questions
What is a Dew Point Transmitter?
A Dew Point Transmitter is an industrial instrument used to continuously measure the dew-point temperature or moisture content of a gas.
Where is a Dew Point Transmitter used?
A Dew Point Transmitter is commonly used in compressed air, air dryers, industrial gases, hydrogen-related applications, welding gases, breathing air and other suitable process applications.
What is the Easidew measurement range?
The Easidew Dew Point Transmitter provides a measurement range of -110 to +20 °Cdp.
What output does the Easidew provide?
The Easidew provides a 4–20 mA, 2-wire output. The Easidew M12 version also supports Modbus RTU over RS485.
Can a Dew Point Transmitter be used for compressed air?
Yes. The Easidew range is specified for Class 1 to Class 6 industrial dryer applications.
Is the Easidew available for hazardous areas?
Yes. The Easidew I.S. version is available with hazardous-area certifications including ATEX and IECEx, along with other certifications listed in the datasheet.