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4-20mA Smart Explosion Proof Differential Transmitter Liquid Gas

WNK5S pressure transmitters are suitable for:

     1.Gauge,absolute and differential pressure measurement in gases,steam or liquids in areas of process control field.
     2.Level,volume or mass mearsurement in liquids.
Availability:
Quantity:
  • WNK55

  • WNK

Applicable media

liquid, gas and steam

Pressure range

-100KPa~6MPa

Accuracy

0.075%, higher on request

Stability

±0.25% of URL for 1 year

Temperature drift

±0.0625% of URL/10ºC

Output signals

4~20mA, Hart, PROFIBUS-PA for option

Housing material

Aluminum14

Mechanical connection

M20×1.5;G1/2;1/2NPT

Protection class

IP66/67

Diaphragm material

316L, Alloy C-276, Monel, Tantalum diaphragm, 316L with PTFE coating etc for option

Fluid filled

Silicon oil,Vegetable oil,Inert oil ,High temperature oil etc for option

Ex-proof

Exia II CT4, other option per request

Power Supply

10.5-55V DC   10.5-30V DC

Ambient temperature

-40 to 85ºC,-40 to 80ºCfor LCD header

Storage temperature

-45 to 85ºC,-40 to 80ºC for LCD header 


Features                   

Applications:

1. High reference accuracy up to 0.075%, higher on request.

Gauge & absolute pressure measurement in gases, steam or liquids in all areas of of engineering process and measurement.

2. Long-term drift  ≤±0.25%URL for 1 year.

3. Range down ratio 100:1; higher on request.

Level measurement in liquids.

4. Replaceable display unit & electronic module.

 High process temperatures up to 280ºC with diaphragm seals.

5. Universal electronics.

It can be used below particular occasiaon

6. Menu-guided operation.

1. Need to isolate the high temperature medium with transmitter

7. Factory default data recovery is supportive

2. The measuring medium is corrosive to the transmitter

8. Hart, PROFIBUS-PA or FF protocol for option.

3. The measuring medium solidification or crystallization due to environmental or temperature changes

4. Suspended liquid or high viscosity medium 

   

Product Overview


The WNK55 4-20mA Smart Explosion Proof Differential Transmitter is a high-performance instrument designed for precise pressure measurement in diverse industrial environments. Manufactured by WNK, a leading provider of pressure sensing solutions, this transmitter excels in measuring gauge, absolute, and differential pressure in gases, steam, and liquids. It is engineered to meet the demands of process control, level monitoring, and critical industrial applications where accuracy, reliability, and safety are paramount.


Equipped with advanced features such as explosion-proof certification, flexible output signals, and robust construction, the WNK55 is suitable for harsh conditions, including corrosive media, high temperatures, and hazardous areas. Its universal design ensures compatibility with various systems, making it a versatile choice for industries ranging from chemical processing to HVAC and oil & gas.


Product Specifications


Parameter

Details

Applicable media

liquid, gas and steam

Pressure range

-100KPa~6MPa

Accuracy

0.075%, higher on request

Stability

±0.25% of URL for 1 year

Temperature drift

±0.0625% of URL/10ºC

Output signals

4~20mA, Hart, PROFIBUS-PA for option

Housing material

Aluminum14

Mechanical connection

M20×1.5; G1/2; 1/2NPT

Protection class

IP66/67

Diaphragm material

316L, Alloy C-276, Monel, Tantalum diaphragm, 316L with PTFE coating (options)

Fluid filled

Silicon oil, Vegetable oil, Inert oil, High temperature oil (options)

Ex-proof

Exia II CT4, other options per request

Power Supply

10.5-55V DC; 10.5-30V DC

Ambient temperature

-40 to 85ºC; -40 to 80ºC for LCD header

Storage temperature

-45 to 85ºC; -40 to 80ºC for LCD header


Features


The WNK55 transmitter stands out with a range of technical advantages that enhance its performance and usability:


· High reference accuracy up to 0.075%, with the option for even higher precision to meet stringent measurement requirements.

· Exceptional long-term stability, with a drift of ≤±0.25% URL over one year, ensuring consistent results without frequent recalibration.

· A wide range down ratio of 100:1 (higher available on request), allowing flexible measurement across varying pressure ranges.

· Replaceable display unit and electronic module, simplifying maintenance and reducing downtime.

· Universal electronics that adapt to different system configurations, enhancing compatibility.

· Intuitive menu-guided operation, making setup and adjustment user-friendly for operators of all skill levels.

· Factory default data recovery support, providing a safety net for accidental configuration errors.

· Optional communication protocols including Hart, PROFIBUS-PA, or FF, enabling seamless integration with industrial control systems.


Applications


The WNK55 4-20mA Smart Explosion Proof Differential Transmitter is widely used in:


· Gauge and absolute pressure measurement in gases, steam, or liquids across all areas of engineering process and measurement.

· Level measurement in liquids, ensuring accurate monitoring of fluid levels in tanks and vessels.

· High process temperatures up to 280ºC when paired with diaphragm seals, making it suitable for extreme heat environments.

· Specialized scenarios such as:

· Isolating high-temperature media from the transmitter to prevent damage.

· Handling measuring media that is corrosive to standard transmitters, thanks to optional diaphragm materials.

· Managing media prone to solidification or crystallization due to environmental or temperature changes.

· Measuring suspended liquids or high-viscosity media, where traditional sensors may fail.


WNK55


WNK55

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