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

商品番号  HG808-A  Dew Point Transmitter

HG808 Super High Temperature Dew Point Transmitter

The HG808 is an industrial-grade temperature, humidity, and dew point transmitter designed for harsh environments with high temperatures even over 190℃. 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: -40 ℃ to 180 ℃ (-40 °F to 374 °F)
  • Probe: The transmitter is equipped with a high-temperature probe that is waterproof and resistant to fine dust.
  • Output: The HG808-A 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
  • Display: 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

仕様

製品のハイライト

シンプルでエレガントなデザイン
工業用グレードのESD安全保護と電源逆接続防止設計
防水・防塵・耐高温プローブの使用
▪高感度防水・防塵高温プローブ
標準 RS485 Modbus RTU 通信プロトコル

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

カテゴリー仕様
温度範囲-50 ~ +180°C
湿度範囲0 ~ 100% RH (Recommend < 95% RH)
Temperature Accuracy±0.1°C (@ 20°C)
Dew Point Accuracy±3% 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データビット、1ストップビット、ノーチェック
Pressurization16バー
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

HG808湿度トランスミッターには6種類のプローブがあり、各タイプにはAバージョンとBバージョンがあります。

Aシリーズ湿度プローブ

Aタイプ多孔質ステンレス製湿度プローブ

0A#

#A1 湿度トランスミッタ用湿度プローブ

1A#

#A3 湿度トランスミッタ用湿度プローブ

3A#

湿度トランスミッタ用#A5湿度プローブ

5A#

#A6 湿度トランスミッタ用湿度プローブ

6A#

#A8 湿度トランスミッタ用湿度プローブ

8A#

Bシリーズ湿度プローブ

Bタイプステンレス製湿度プローブ

0B#

#B1 湿度トランスミッタ用湿度プローブ

1B#

3B#

5B#

6B#

8B#

Probe Connector

プローブコネクターオプション
M20六角ネジステンレススチール湿度プローブ

M20 六角ネジステンレススチールプローブコネクター

G1/2六角ネジステンレススチール湿度プローブ

G1/2 六角ネジステンレススチールプローブコネクター

NTP1/2 六角ネジステンレススチール湿度プローブ

NTP1/2 六角ネジステンレススチールプローブコネクター

M27六角ネジステンレススチール湿度プローブ

M27 六角ネジステンレススチールプローブコネクター

M20フランジステンレススチール湿度プローブ

M20フランジステンレススチールプローブコネクター

インスタレーションについて

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

4-20mA+RS485アナログ出力タイプの配線規格

ラインカラー定義仕様
電源コード  
レッド電源プラス10 ~ 30V DC
ブラック電源マイナスGND
アナログ出力ライン  
ブラウン温度信号正4-20mA出力
ブルー温度信号負黒(GND)に接続
グレー湿度信号 正4-20mA出力
ホワイト湿度信号負黒(GND)に接続
RS485配線  
イエローRS485Aツイストペアケーブル
グリーンRS485Bツイストペアケーブル

その他の注意事項

  • 耐荷重:
    • 現在の出力: ≤ 600Ω
    • 電圧出力(この表では該当なし):≦250Ω
 
  • 適用モデル: All HG808 Series
 

重要だ:

  • 具体的な接続方法と追加要件については、デバイスのマニュアルを参照してください。
  • RS485バスの終端抵抗が、デバイスのマニュアルや関連する通信規格に従って適切に使用されていることを確認してください。
  • 適切な知識と資格なしに電気配線を試みないでください。
  •  

アプリケーション

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:

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.
  • 発電: 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.
  • ガラス製造: 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.
 

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.

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Product Introduction

1.1 Product Overview

The HG808 A series ultra-high temperature online dew point meter is designed for humidity measurement in high-temperature and dry environments,

equipped with a sturdy cast aluminum housing and stainless steel sensor components, suitable for continuous and accurate monitoring of temperature

and dew point in extremely harsh high-temperature industrial environments.

The A series ultra-high temperature online dew point meter is equipped with a dew point sensor that can withstand ultra-high temperatures, and also has

online real-time monitoring function.

This product has a wide range of applications, covering multiple fields such as food, medicine, chemical industry, high-temperature drying, and

environmental monitoring.

The HG808-A series is engineered for precise humidity measurement in high-temperature, dry environments.

Key features include:

カテゴリー Details
Product Name HG808-A Series Ultra-High Temperature Online Dew Point Meter
Product Function Accurate online monitoring of temperature and dew point in high-temperature, dry industrial settings.
Construction – Cast aluminum housing- Stainless steel sensor components
Real-Time Monitoring – Online monitoring capabilities- Dew point sensor for ultra-high temperatures
アプリケーション Food Industry: Ensures product quality in drying ovens (vegetables, fruits, etc.)
Pharmaceutical Industry: Prevents moisture contamination during drying and disinfection
Chemical Industry: Enhances chemical reactions by monitoring dew point to avoid moisture interference
High-Temperature Drying: Improves efficiency and optimizes energy by accurately monitoring gas dew points
Environmental Monitoring: Measures combustion flue gas and chimney emissions to comply with environmental standards
Corrosion Resistance Resistant to chemical gases, oil vapor, dust, micro particles;
suitable for ultra-high temperature conditions
(<190 °C) and corrosive environments
Interconnectivity Modbus RTU protocol; integrates easily with PLC, DCS, and various configuration software
Versatile Use Suitable as accessory in:
– High heat process engineering systems- Industrial high-temperature drying systems
– High-temperature constant temperature and humidity experimental chambers
Customer Support Alternative products available upon inquiry for specialized measurement needs

For measurement needs not met by the HG808-A series,

please contact our customer service for alternative temperature and humidity measurement products.

Thank you for your interest!

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