A rugged dew-point transmitter for continuous measurement in industrial dryer applications

Product Parent Code: SF82-TX

SF82 Transmitter 2-Wire 4-20mA Output

1. Features
Simple to install and maintain, the SF82 transmitter series measures dew point and moisture content
and is available with a range of industry standard process connections and electrical connectors.
The SF82 features analog and digital outputs providing compatibility with any electronic controller.
All models are available with our service exchange program which minimizes process downtime
reducing maintenance costs.

2.Applications
• Refrigeration dryers
• Membrane dryers
• Adsorption dryers
• Medical and surgical air
• Breathing air
• Additive manufacturing
• Plastic injection moulding
• Portable dew point checkers

3.Highlights

• Dew point or ppmV moisture content output
• Accuracy ±2 °C (±3.6 °F) dew point
• Modbus RTU over RS485 digital communication
• 4 to 20 mA 2 wire
• Traceable 9 point calibration certificate
• Ultra-fast response to moisture change
• Low cost of ownership and easy maintenance with
sensor exchange program
• 316 stainless steel sensor and sample blocks
• 5/8” UNF, 3/4” UNF, G 1/2” process connections
• KF40 Glove Box flange
• MiniDIN 43650 C, M12 electrical connectors

4. Technical Specifications

• Re-ranging 4–20 mA within the -80 °C to +60 °C
(-112 °F to +140 °F) dew point range
• Measured parameter - dew point, ppmV

Response Time: <20s

Measuring Environment Temperature: －10℃~+50℃

Measuring Environment Humidity: <80％RH

Stability: <±1%.FS (168h)

Signal Output: 4~20mA electric current output

Power supply: DC24V

Expected life: sensor—8000 hours, analyzer—16000 hours

Suzhou GASPU Gas Technology Co., Ltd. was founded in 2001 in Suzhou Overseas Students Entrepreneurship Park and registered in Suzhou National High Tech Industrial Development Zone. The company has established long-term cooperative relationships with domestic and foreign research and development institutions such as SAES, SEMIGASSYSTEM, BOISTON, AIRTECH, UOP, GARBOTECH, BURKERT, etc., continuously innovating in gas and air purification treatment technologies, and developing leading new technologies and products domestically.

With a group of professional personnel engaged in the research, promotion, and production of pressure swing adsorption technology, and the efforts of all colleagues to explore and adhere to the principle of customer first, GASPU has developed into a professional air separation equipment supplier with a certain scale in China, integrating scientific research and production. It can provide PSA carbon molecular sieve nitrogen production equipment, membrane separation nitrogen production equipment, and ammonia decomposition hydrogen production equipment to a large number of users, Hydrogen purification products, and various gas supply solutions can be provided according to user requirements.

The company has been self-purchasing land in Suzhou High tech Zone since 2003 and owns a professional production base of 8000 square meters for nitrogen generators and ammonia decomposition hydrogen production equipment. The equipment is widely used in industries such as petrochemicals, electronics, pharmaceuticals, food preservation, and new materials, providing overall solutions for industries and fields that require the use of protective atmospheres. Some customers include Ma-steel Hefei, DSM Chemical, BASF Chemical, BP, and CNOOC Zhejiang Wan-Xiang, Jing-Neng Group, Shanghai Electric, China DATANG, State Power Investment Corporation, Shenzhen Foxconn, etc. have stable and safe equipment operation.

Looking forward to GASPU being your better choice!

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