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High Temperature Dew Point Transmitter - HG808-D 

HG808-D High Temperature Dew Point Transmitter
High Temperature Dew Point Transmitter HG808-D
High Temperature Dew Point Transmitter HG808-D Display Option
Alternativ för sondtyp för HG808 temperatur- och luftfuktighetstransmitter
Humidity Sensor and Transmitter Prob
Utgångsalternativ för HG808 temperatur- och luftfuktighetstransmitter

HG808-D High Temperature Dew Point Transmitter

Measure Dew Point Accurately up to +90 °C

— Even in Harsh Industrial Environments

The HG808-D is a compact, high-performance transmitter for dew point, temperature, and humidity monitoring in high-temperature and demanding processes such as drying systems, ovens, and compressed air lines.
-Built with a durable high-temperature probe and IP65 housing, it ensures stable, accurate measurement even in hot, dusty, or humid conditions.

Key Features:
*Wide Measurement Range: Dew point −60 °C ~ +90 °C; Temperature −40 °C ~ +90 °C (−76 °F ~ +194 °F)
*Flexible Outputs: RS-485 (Modbus-RTU), 4-20 mA, 0-5 V / 0-10 V
*Integrated Display: Real-time view of dew point, temperature, and humidity
*Industrial Compatibility: Connects easily to PLC, DCS, or on-site display systems

Idealisk för:
*Compressed air monitoring
*Industrial drying
*Environmental chambers
*Process control

📩 Contact us to customize your HG808-D solution today.

HG808-D ( Data Sheet )
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SPECIFIKATION

Produktens höjdpunkter:

  • Designed for high-temperature and harsh industrial environments — ideal for drying, compressed air, and heat-treatment processes
  • Åtgärder dew point, temperature, and humidity simultaneously for complete moisture analysis
  • High-temperature probe ensures accurate and stable readings up to +90 °C (194 °F)
  • Wide dew point range: −60 … +90 °C (−76 … +194 °F) for both ultra-dry and humid conditions
  • Flexible signal outputs: RS-485 (Modbus-RTU), 4–20 mA, 0–5 V, or 0–10 V — ready for PLC, DCS, or SCADA integration
  • IP65 aluminum housing with dust- and moisture-resistant construction for long-term reliability
  • Built-in display provides real-time visualization of dew point, temperature, and humidity
  • Compatible with industrial controllers and data loggers for continuous process monitoring

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
Temperaturområde-40 ~ +90°C
Område för luftfuktighet0 ~ 100% RH (rekommendation < 95% RH)
Temperatur Noggrannhet±0,1°C (@ 20°C)
Dew Point Accuracy±2% RH (± 3.6 °F) Td
StrömförsörjningDC 10V ~ 28V
Strömförbrukning< 0.5W
Analoga utgångarLuftfuktighet + temperatur:
4~20mA / 0-5V / 0-10V (en av tre)
RS485 Digital utgångTemperatur, luftfuktighet, daggpunkt, PPM (avläses samtidigt)
Upplösning Förhållande0,01°C / 0,1°C (tillval) 
0,01% RH / 0,1% RH (tillval) 
Baud-frekvens1200, 2400, 4800, 9600, 19200, 115200 (standard: 9600 bps)
FörvärvsfrekvensSnabbaste svar: 1 sekund; övriga inställningar per PLC
Byteformat8 databitar, 1 stoppbit, ingen kontroll
Trycksättning16 bar
Arbetstemperatur-20°C ~ +60°C, 0% RH ~ 95% RH (ingen kondens)
Typ av sond

Delad typ:

Sond 0 -Delad typ ：0A# / 0B#

Probe 8 –Split type  ：8A# / 8B#

Recommended Operating Conditions:

*Temperature: -40 … +90℃

*Dew Point: -60 … +90℃

*Application Environment:
Suitable for stable airflow, wind speed, and pressure conditions, and free from corrosive media, oil, or
Low-humidity or extremely dry environments with a wide dew point range.
chemical vapors.

HG808-D series Humidity Probe List Option

The HG808-D Series offers four probe types, each with A and B variants, allowing you to choose the ideal configuration for any humidity measurement environment.

A-serie fuktsond

A-typ Porös fuktsond i rostfritt stål

0A#

#A8 Fuktsond för fukttransmitter

8A#

B-serie fuktsond för luftfuktighet

Fuktsond av typ B i rostfritt stål

0B#

8B#

Threaded Connection

Alternativ för probanslutning
M20 Hexagonal gänga, fuktsond i rostfritt stål

M20 Hexagonal thread stainless steel Threaded Connection

G1/2 Hexagonal gänga fuktsond i rostfritt stål

G1/2 Hexagonal thread stainless steel Threaded Connection

NTP1/2 Fuktsond i rostfritt stål med sexkantig gänga

NTP1/2 Hexagonal thread stainless steel probe Threaded Connection

M27 Hexagonal gänga, fuktsond i rostfritt stål

M27 Hexagonal thread stainless steel Threaded Connection

M20 Fläns fuktsond i rostfritt stål

M20 Flange stainless steel probe Threaded Connection

Om installation

4-20mA temperatur- och fuktighetssändare Kabelanslutningsschema

4-20mA temperatur- och fuktighetssändare Kabelanslutningsschema

0-10v Temperatur Fukt Sändare Kabelanslutningsschema

0-10v Temperatur Fukt Sändare Kabelanslutningsschema

0-5v Temperatur Fukt Sändare Wire Anslutningsschema

0-5v Temperatur Fukt Sändare Wire Anslutningsschema

Varje färg kabelanslutningsdiagram HG808 Humidity Transmitter

Kopplingsstandard för 4-20mA + RS485 analog utgångstyp

LinjefärgDefinitionSpecifikation
Nätkabel  
RödStrömförsörjning positiv10 ~ 30V DC
SvartStrömförsörjning negativGND
Analoga utgångslinjer  
BrunTemperatursignal positiv4-20mA utgång
BlåTemperatursignal negativAnsluts till svart (GND)
GråSignal för luftfuktighet positiv4-20mA utgång
VitSignal för luftfuktighet negativAnsluts till svart (GND)
RS485-kablage  
GulRS485ATvinnad parkabel
GrönRS485BTvinnad parkabel
 

Ytterligare anmärkningar:

  • Lastkapacitet:
    • Strömutgång: ≤ 600Ω
    • Utmatningsspänning (ej tillämplig i denna tabell): ≤ 250Ω
 
  • Tillämpliga modeller: Alla HG808-serier
 

Viktigt:

  • Se enhetens bruksanvisning för specifika anslutningsinstruktioner och eventuella ytterligare krav.
  • Se till att korrekta avslutningsmotstånd används på RS485-bussen i enlighet med enhetens manual och relevanta kommunikationsstandarder.
  • Försök inte att dra elektriska kablar utan rätt kunskap och kvalifikationer.
  •  

ANSÖKAN

Transmitter för hög temperatur och luftfuktighet: 

Applikationer för extrema miljöer

Industriella processer innebär ofta extrema temperaturer och luftfuktighetsnivåer. Vanliga transmitters klarar inte av dessa tuffa förhållanden. Här följer en sammanställning av tillämpningar där transmitters för hög temperatur och luftfuktighet (som arbetar över 200°C och ned till -50°C) är avgörande:

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

TillämpningBeskrivning
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.
 Kemisk bearbetning: 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.
 Halvledartillverkning: 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?

 

Detta är bara några exempel. Transmitters för hög temperatur och luftfuktighet spelar en viktig roll i olika branscher genom att säkerställa processtyrning, produktkvalitet och säkerhet i extrema miljöer.

Ladda ner produktmanual / certifiering / programvara

1.HENGKO E-CATALOGUE

2. Markera alla övriga Ladda ner filer

Produktintroduktion

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:

FunktionBeskrivning
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!

HG808-D Product Parameters HENGKO

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