High Temperature Humidity Sensor

High Temperature Humidity Sensor

High Temperature Humidity Sensor Supplier

 

HENGKO's High Temperature Humidity Sensor and Transmitter Monitor Solution

is a state-of-the-art environmental sensing system designed to withstand and accurately

measure humidity levels in extremely harsh industrial environments, including those with

prolonged exposure to high temperatures.

 

High Temperature Humidity Sensor Solution

 

HENGKO High Temperature Humidity Sensor and Transmitter Monitor Solution is encased in a durable,

heat-resistant material, ensuring that it not only performs under extreme conditions but also withstands

the physical demands of industrial environments. 

 

This makes it an invaluable tool for industries where environmental control is critical to product quality

and process stability, offering unmatched accuracy, durability, and reliability in humidity measurement

and monitoring.

 

If you also have high temperature environment need to monitor the temperature and humidity, check

our high temperature and humidity sensor or transmitter, or contact us for product details and price

by email ka@hengko.com or click as follow button.

 

 contact us icone hengko 

 

 

 

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HG808 Super High Temperature Humidity Transmitter

The HG808 is an industrial-grade temperature, humidity, and dew point transmitter

designed for harsh environments with high temperatures. In addition to measuring and

transmitting temperature and humidity, the HG808 calculates and transmits the dew point,

which is the temperature at which air becomes saturated with water vapor and

condensation begins to form.

 

Here’s a breakdown of the key features:

1.Temperature range: -40 ℃ to 190 ℃ (-40 °F to 374 °F)

2. Probe: The transmitter is equipped with a high-temperature probe that is waterproof and resistant to fine dust.

3. Output: The HG808 offers flexible output options for temperature, humidity, and dew point data:

Display: The transmitter has an integrated display for viewing temperature, humidity, and

*dew point readings.

*Standard industrial interface

*RS485 digital signal

*4-20 mA analog output

*Optional: 0-5v or 0-10v output

 

Connectivity: 

The HG808 can be connected to various industrial control systems, including: On-site digital display meters
*PLCs (Programmable Logic Controllers)
*Frequency converters
*Industrial control hosts

 

Probe Option of HG808 Temperature Humidity Transmitter

 

Product Highlights:

*Integrated design, simple and elegant
*Industrial grade ESD safety protection and power supply anti reverse connection design

*Using waterproof, dustproof, and high-temperature resistant probes

*Sensitive waterproof and anti fine dust high-temperature probe

*Standard RS485 Modbus RTU communication protocol

The ability to measure dew point makes the HG808 ideal for applications where moisture control is critical, such as:

*HVAC systems

*Industrial drying processes

*Weather monitoring stations

 

By measuring and transmitting all three values (temperature, humidity, and dew point),

the HG808 provides a comprehensive picture of moisture conditions in harsh environments.

 

HG808 Data Sheet Details

Here is a table about HG808 Series about main datasheet and different features, please check as following :
Model
Temperature Range (°C)
Humidity Range (% RH)
Dew Point Range (°C)
Accuracy (Temperature/Humidity/Dew Point)
Special Features
Applications
HG808-T Series   
( High Temperature Transmitter )
-40 to +190℃
0-100%RH
N/A
±0.1°C / ±2%RH
Ultra-high temperature resistant sensing element, 316L stainless steel probe. Maintains good humidity collection performance even at high temperatures between 100°C and 190°C.
Collecting humidity data from high-temperature gases in various applications like furnace kilns, high-temperature ovens, and coking gas pipelines.
HG808-H Series
( High Humidity Transmitter )
-40 to +190℃
0-100%RH
N/A
±0.1°C / ±2%RH
Features long-term stable and highly accurate humidity sensing with excellent corrosion resistance. Employs a robust cast aluminum housing and a stainless steel sensor assembly for durability. Maximum humidity range extends up to 100% RH.
Suitable for use in industrial environments with high humidity levels, particularly in applications with relative humidity ranging from 90% to 100%.
HG808-C Series   
( Precision Transmitter)
-40 to +150℃
0-100%RH
N/A
±0.1°C /± 1.5%RH
Provides long-term stable and high-accuracy measurement performance across a wide measurement range (0-100% RH, -40°C to +150°C). Employs high-quality sensors and advanced calibration technology for sustained precision.
Ideal for use in various fields requiring precise measurements, including biopharmaceuticals, precision machinery processing, laboratory research, food processing, and storage.
HG808-K Series  (Harsh Environment Transmitter )
-40 to +190℃
0-100%RH
N/A
±0.1°C / ±2%RH 
Combines a high-precision ultra-high temperature resistant sensing element with a 316L stainless steel probe. Features a probe heating function for removing condensation, sensor anti-interference, and is designed for long-term stability.
Suitable for harsh industrial environments with high/low temperatures, high humidity, dry conditions, oil and gas, dust, particle pollution, and exposure to corrosive substances.
HG808-A Series
(Ultra High Temp Dew Point Meter)
-40 to +190℃
N/A
-50 to +90℃
±3°C Td
Designed specifically for measuring dew point in high-temperature and dry environments. Features a robust cast aluminum housing and stainless steel sensor assembly for accurate measurements at temperatures up to 190°C.
Ideal for dew point measurement in challenging high-temperature and dry environments.
HG808-D Series (Inline Dew Point Meter)
-50 to +150℃
N/A
-60 to +90℃
±2°C Td
Utilizes a high-quality moisture-sensitive element and advanced calibration techniques to deliver accurate dew point measurements. Offers consistent ±2°C dew point accuracy within a dew point range of -60°C to +90°C.
Suitable for industrial, non-harsh environments where precise humidity control is crucial. Applicable in areas like lithium battery production, semiconductor applications, and glove boxes for microscopic water detection.
HG808-S Series
( Inline Dew Point Meter )
-40 to +150℃
N/A
-80 to +20℃
±2°C Td
Designed to operate in extremely dry environments and measure moisture in gases. Features a dew point range extending down to -40°C, making it suitable for applications requiring strict humidity control.
Measures low dew point values in industrial settings demanding precise humidity management.

 

 

Applications

Monitoring temperature and humidity is vital in curing processes like painting, drying ceramics, and heat treating metals.
Precise control ensures product quality and prevents defects.
*Power Generation: 
Humidity measurement in power plants helps prevent corrosion in turbines and other equipment exposed
to high temperatures and steam.
*Chemical Processing: 
Accurate temperature and humidity data is essential for safe and efficient chemical reactions in reactors, dryers, and pipelines.
Deviations can lead to hazardous situations or product contamination.
*Semiconductor Manufacturing: 
Creating microchips involves tightly controlled environments with high temperatures and low humidity.
Transmitters ensure proper conditions for sensitive processes like photolithography and etching.
*Glass Manufacturing: 
Glass production requires precise temperature and humidity control during melting, blowing, and annealing.
Transmitters help maintain consistent glass quality and prevent defects.

 

Low-Temperature Applications (Down to -50°C):

*Cold Storage Facilities: 

Monitoring temperature and humidity in freezers and cold warehouses helps maintain optimal conditions
for food preservation and prevent spoilage.
*Cryogenic Applications: 
Extremely low temperatures are used in research and industrial processes like superconductivity and liquefied natural gas (LNG) storage.
Transmitters ensure safe handling and prevent equipment damage from ice formation.
*Climate Monitoring: 
These transmitters are valuable tools for weather stations in extreme cold environments like the Arctic or high mountain regions.
They provide accurate data for climate research and weather forecasting.
*Aerospace Industry: 
Testing aircraft components for functionality in frigid conditions requires precise temperature and humidity control.
Transmitters simulate real-world scenarios and ensure aircraft safety.
*Wind Turbine Icing: 
Detecting and measuring ice formation on wind turbine blades is crucial for safe operation.
Transmitters help prevent blade damage and power generation loss in cold climates.

 

Popular FAQ

 

What are the key features of a high temperature humidity sensor and transmitter?

A high temperature humidity sensor and transmitter is designed to accurately measure and transmit humidity

levels in environments with elevated temperatures. Key features include:

*Wide temperature range:
Capable of operating in extreme temperatures, often exceeding 100°C (212°F).
*High accuracy:
Provides precise humidity readings within a specified tolerance range.
*Fast response time:
Quickly detects changes in humidity levels.
*Durability:
Constructed with materials that can withstand harsh conditions and prolonged exposure to high temperatures.
*Output options:
Offers various output formats (e.g., analog voltage, digital signal) for compatibility with different systems.
*Remote monitoring:
Allows for real-time data transmission and monitoring from a distance.

How does a high temperature humidity sensor work?

High temperature humidity sensors typically employ capacitive or resistive sensing technologies.

In capacitive sensors, a dielectric material changes its capacitance based on the relative humidity.

In resistive sensors, a hygroscopic material alters its resistance in response to changes in humidity.

The sensor's output signal is then converted and transmitted by the transmitter.

 

Where are high temperature humidity sensors and transmitters commonly used?

High temperature humidity sensors and transmitters find applications in various industries and environments, including:

*Industrial processes:
Monitoring humidity levels in ovens, kilns, dryers, and other high-temperature equipment.
*HVAC systems:
Regulating indoor humidity in industrial facilities, data centers, and cleanrooms.
*Agricultural settings:
Controlling humidity in greenhouses, livestock facilities, and grain storage areas.
*Research and development:
Conducting experiments and studies in high-temperature environments.
*Environmental monitoring:
Measuring humidity in outdoor locations, such as deserts or volcanic regions.

 

What are the specific benefits of using a high temperature humidity sensor and transmitter in these applications?

*Improved process control:
Accurate humidity monitoring enables optimized control of industrial processes, leading to higher efficiency and product quality.
*Enhanced environmental conditions:
By maintaining optimal humidity levels, high temperature humidity sensors contribute to a healthier and more comfortable
environment for people and equipment.
*Preventative maintenance:
Monitoring humidity can help identify potential equipment failures or performance issues, allowing for timely maintenance and repairs.
*Data-driven decision-making:
Real-time humidity data provides valuable insights for informed decision-making and process optimization.

 

What factors should be considered when selecting a high temperature humidity sensor and transmitter?

*Temperature range:
Ensure the sensor can withstand the maximum and minimum temperatures in the application environment.
*Accuracy requirements:
Choose a sensor with sufficient accuracy to meet the specific needs of the application.
*Output compatibility:
Select a transmitter with an output format that is compatible with the receiving system.
*Installation considerations:
Consider factors such as sensor location, cable routing, and environmental conditions.

 

How should a high temperature humidity sensor and transmitter be installed?

The installation process typically involves:

1.Selecting a suitable location:
Choose a location that is representative of the desired measurement area and free from obstructions.
2.Mounting the sensor:
Securely mount the sensor using the provided brackets or accessories.
3.Connecting the transmitter:
Connect the sensor to the transmitter using the appropriate cables.
4.Configuring the transmitter:
Set the desired parameters, such as output range and calibration settings.
5.Powering the transmitter:
Connect the transmitter to a suitable power source.

 

What maintenance is required for a high temperature humidity sensor and transmitter?

Regular maintenance is essential to ensure the accuracy and reliability of a high temperature humidity sensor and transmitter. This may include:

*Calibration:
Periodically calibrate the sensor against a reference instrument to maintain accuracy.
*Cleaning:
Clean the sensor and transmitter to remove dust, contaminants, or corrosion.
*Inspection:
Inspect the sensor and transmitter for any signs of damage or wear.
*Data verification:
Verify the transmitted data against known reference points.

 

 

 

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