150℃ High Temperature Dew Point Transmitter 4-20mA, RS485, 0-5V, 0-10V Output Option

Artikel Nummer:  HG808-D  Dew Point Transmitter

HG808 High Temperature Dew Point Transmitter

The HG808-D is an industrial-grade temperature, humidity, and dew point transmitter designed for harsh environments with high temperatures even over 150℃. 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:

  • Temperature range: -50 ℃ to 150 ℃ (-122 °F to 302 °F)
  • Dew point range: -60°C to +90°C
  • Probe: The transmitter is equipped with a high-temperature probe that is waterproof and resistant to fine dust.
  • Ausgabe: The HG808-D offers flexible output options for temperature, humidity, and dew point data:
    • Standard industrial interface RS485 digital signal
    • 4-20 mA analog output
    • Optional: 0-5v or 0-10v output
  • Anzeige: The transmitter has an integrated display for viewing temperature, humidity, and dew point readings.
  • Connectivity: The HG808-A can be connected to various industrial control systems, including:
    • On-site digital display meters
    • PLCs (Programmable Logic Controllers)
    • Frequency converters
    • Industrial control hosts

SPEZIFIKATION

Produkt-Highlights:

▪ Integriertes Design, einfach und elegant
Industrietauglicher ESD-Schutz und verpolungssicheres Design der Stromversorgung
▪ Verwendung von wasser- und staubdichten sowie hochtemperaturbeständigen Sonden
Empfindlicher wasserdichter und feinstaubgeschützter Hochtemperaturfühler
▪Standard RS485 Modbus RTU Kommunikationsprotokoll

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-D Data Sheet Details

Here’s a specification details for the HG808-D series Dew Point Transmitter :

Dew point range:-60°C to +90°C
Temperaturbereich-50 ~ +150°C
Luftfeuchtigkeitsbereich0 ~ 100% RH (Recommend < 95% RH)
Temperature Accuracy±0.1°C (@ 20°C)
Dew Point Accuracy±2% RH (± 5.4 °F) Td
Power SupplyDC 10V ~ 28V
Power Consumption< 0.5W
Analog OutputsHumidity + Temperature:
4~20mA / 0-5V / 0-10V (one out of three)
RS485 Digital OutputTemperature, humidity, dew point, PPM (read simultaneously)
Resolution Ratio0.01°C / 0.1°C (optional) 
0.01% RH / 0.1% RH (optional) 
Baud Rate1200, 2400, 4800, 9600, 19200, 115200 (default: 9600 bps)
Acquisition FrequencyFastest response: 1 second; other settings per PLC
Byte Format8 Datenbits, 1 Stoppbit, keine Prüfung
Pressurization16 bar
Working Temperature-20°C ~ +60°C, 0% RH ~ 95% RH (Non-condensation)
Probe Type

Split type:

Probe 0 –Split type  :0A# / 0B#

Probe 8 –Split type  :8A# / 8B#

HG808 series Humidity Probe List Option

Wir bieten 6 Fühlertypen für den HG808 Feuchtemessumformer an, wobei jeder Typ sowohl in A- als auch in B-Ausführung erhältlich ist, so dass insgesamt 12 Fühler für verschiedene Anwendungsmöglichkeiten zur Verfügung stehen.

A-Serie Feuchtefühler

Typ A Poröser Feuchtigkeitsfühler aus Edelstahl

0A#

#A1 Feuchtefühler für Feuchte-Messumformer

1A#

#A3 Feuchtefühler für Feuchte-Messumformer

3A#

#A5 Feuchtefühler für Feuchte-Messumformer

5A#

#A6 Feuchtefühler für Feuchtemessumformer

6A#

#A8 Feuchtefühler für Feuchte-Messumformer

8A#

B-Serie Feuchtefühler

Feuchtefühler Typ B aus Edelstahl

0B#

#B1 Feuchtefühler für Feuchte-Transmitter

1B#

3B#

5B#

6B#

8B#

Probe Connector

Option Sondenanschluss
M20 Sechskantgewinde Edelstahl Feuchtefühler

M20 Sechskantgewinde Edelstahl-Sondenanschluss

G1/2 Sechskantgewinde Feuchtefühler aus Edelstahl

G1/2 Sechskantgewinde Edelstahl-Sondenanschluss

NTP1/2 Feuchtefühler mit Sechskantgewinde aus Edelstahl

NTP1/2 Sondenanschluss aus Edelstahl mit Sechskantgewinde

M27 Sechskantgewinde Edelstahl Feuchtefühler

M27 Sechskantgewinde Edelstahl-Sondenanschluss

M20 Flansch Edelstahl Feuchtefühler

M20 Flansch Sondenanschluss aus rostfreiem Stahl

Über die Installation

4-20mA Temperature Humidity Transmitter Wire Connect Diagram

4-20mA Temperature Humidity Transmitter Wire Connect Diagram

0-10v Temperature Humidity Transmitter Wire Connect Diagram

0-10v Temperature Humidity Transmitter Wire Connect Diagram

0-5v Temperature Humidity Transmitter Wire Connect Diagram

0-5v Temperature Humidity Transmitter Wire Connect Diagram

Each color wire connect diagram HG808 Humidity Transmitter

Verdrahtungsstandard von 4-20mA + RS485 Analogausgangstyp

Farbe der LinieDefinitionSpezifikation
Netzkabel  
RotSpannungsversorgung positiv10 ~ 30V DC
SchwarzStromversorgung negativGND
Analoge Ausgangsleitungen  
BraunTemperatursignal positiv4-20mA Ausgang
BlauTemperatursignal negativWird mit Schwarz (GND) verbunden
GrauLuftfeuchtigkeitssignal positiv4-20mA Ausgang
WeißLuftfeuchtigkeitssignal negativWird mit Schwarz (GND) verbunden
RS485-Verdrahtung  
GelbRS485AVerdrilltes Kabel
GrünRS485BVerdrilltes Kabel

Zusätzliche Hinweise:

  • Tragfähigkeit:
    • Stromausgang: ≤ 600Ω
    • Spannungsausgang (nicht in dieser Tabelle enthalten): ≤ 250Ω
 
  • Anwendbare Modelle: All HG808 Series
 

Das ist wichtig:

  • Spezifische Anschlussanweisungen und zusätzliche Anforderungen finden Sie in der Bedienungsanleitung des Geräts.
  • Stellen Sie sicher, dass am RS485-Bus geeignete Abschlusswiderstände gemäß dem Gerätehandbuch und den einschlägigen Kommunikationsstandards verwendet werden.
  • Versuchen Sie nicht, elektrische Leitungen ohne entsprechende Kenntnisse und Qualifikationen zu verlegen.
  •  

ANWENDUNG

High Temperature and Humidity Transmitters: 

Applications for Extreme Environments

Industrial processes often involve extreme temperatures and humidity levels. Regular transmitters can’t handle these harsh conditions. Here’s a breakdown of applications where high-temperature and humidity transmitters (operating over 200°C and down to -50°C) are crucial:

Here is a structured table for the applications of high-temperature and low-temperature transmitters in extreme environments:

AnmeldungBeschreibung
High-Temperature Applications (Over 200°C)Industrial Ovens and Furnaces: 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.
 Chemische Verarbeitung: 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.
 Herstellung von Halbleitern: 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.

Would you like any adjustments or additional details?

 

These are just a few examples. High-temperature and humidity transmitters play a vital role in various industries by ensuring process control, product quality, and safety in extreme environments.

Download Produkthandbuch / Zertifizierung / Software

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Product Introduction

The HG808-D series is a robust dew point transmitter designed for measuring low dew point data in extremely low humidity conditions. 

Key features include: 

Here is a table summarizing the key features:

MerkmalBeschreibung
Reliable MeasurementIdeal for air compression, refrigeration, membrane, and adsorption dryers.
Versatile InstallationCan be installed in industrial applications, including:
– Pipeline drying with vacuum and dry gas purification
– Thermal regeneration compressed gas
– Adsorption drying
Comprehensive Gas MonitoringProvides accurate online measurements of moisture in various gases, including flammable, inert, and corrosive types. Useful for detecting residual humidity behind plastic industry dryers.
Strict Humidity ControlEssential for low dew point measurement in:
– Lithium battery production
– Electronic component manufacturing
– Semiconductor processes
– Power engineering
Wide Application ScopeCommonly used for humidity detection in:
– Air separation nitrogen production
– Dry gases, compressed gases, natural gas, and liquefied gases
– High-temperature sintering furnace protective gases
– Electronics industry, insulation gases, and refrigerants
– Rapid trace moisture analysis in food, pharmaceuticals, and machinery
Broader Use CasesSuitable for:
– Meteorological analysis
– Power switches
– Metal smelting
– Petrochemical processes
– Natural gas processing
– Electronic manufacturing
– Textiles
– Aerospace where dew point measurement is critical
 

For any measurement needs not met by the HG808-D series, please reach out to our customer service for alternative temperature and humidity measurement products.

Thank you for your interest!

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