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
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
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
*Power Generation:
*Semiconductor Manufacturing:
Low-Temperature Applications (Down to -50°C):
*Cold Storage Facilities:
*Climate Monitoring:
*Aerospace Industry:
*Wind Turbine Icing:
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:*High accuracy:
*Fast response time:
*Durability:
*Output options:
*Remote monitoring:
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:*HVAC systems:
*Agricultural settings:
*Research and development:
*Environmental monitoring:
What are the specific benefits of using a high temperature humidity sensor and transmitter in these applications?
*Improved process control:*Enhanced environmental conditions:
*Preventative maintenance:
*Data-driven decision-making:
What factors should be considered when selecting a high temperature humidity sensor and transmitter?
*Temperature range:*Accuracy requirements:
*Output compatibility:
*Installation considerations:
How should a high temperature humidity sensor and transmitter be installed?
The installation process typically involves:
1.Selecting a suitable location:2.Mounting the sensor:
3.Connecting the transmitter:
4.Configuring the transmitter:
5.Powering the transmitter:
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:*Cleaning:
*Inspection:
*Data verification: