Intelligent LCD Display Capillary Melt Pressure Transmitter PT124B-129/129T Series

Introduction – Intelligent LCD Display Capillary Melt Pressure Transmitter PT124B-129/129T Series

The PT124B-129/129T Series Intelligent LCD Display Capillary Melt Pressure Transmitter is a high-precision and high-stability measuring instrument developed using digital circuit compensation technology. It is designed to deliver accurate pressure readings even under demanding high-temperature melt conditions. Built with an explosion-proof aluminum alloy housing, it features an integrated LCD display for real-time local monitoring and supports two-wire 4–20 mA output with HART protocol for enhanced control communication.

Engineered for modern industrial environments, this transmitter ensures consistent performance and minimal temperature drift, meeting the strict requirements of extrusion, fiber production, and polymer processing lines. The design emphasizes operational safety and reliability, with stable signal transmission and durable stainless-steel wetted parts coated with 15-5PH for extended service life.

Thanks to its robust digital compensation circuit and internal 80% calibration signal, the PT124B-129/129T Series simplifies setup and maintenance while maintaining long-term accuracy. Its versatility and precision make it a trusted choice among engineers and plant operators in various high-temperature and hazardous applications across the UAE and wider MENA region, where reliability and stability are essential.

Distributed by Dubai Sensor, this transmitter integrates easily with industrial automation systems such as PLCs and digital control instruments, providing accurate real-time pressure monitoring and control for melt processes.

Key Features & Benefits

• High measurement accuracy: ±0.25% FS or ±0.5% FS
  
• LCD on-site display for clear local reading
  
• Digital circuit compensation enhances precision and stability
  
• Explosion-proof aluminum alloy housing ensures operational safety
  
• 4–20 mA output with optional HART protocol for flexible integration
  
• Internal 80% calibration signal for quick and simple calibration
  
• Excellent repeatability (±0.2%) and long-term reliability
  
• Anti-interference circuit guarantees stable signal transmission
  
• Wide operating temperature range up to 400 °C
  
• Simple installation and zero/span adjustment via control buttons
  
• IP67 protection grade for harsh environments
  
  

Technical Specifications – Intelligent LCD Display Capillary Melt Pressure Transmitter PT124B-129/129T Series

Standards & Certifications

• Designed in compliance with industrial instrumentation and explosion-proof safety standards
  
• IP67 protection ensures resistance to dust and water ingress
  
• Internal safety and calibration systems conform to ZHYQ quality standards
  
  

Applications & Industries

• Chemical fiber and polyester production equipment
  
• Plastic and rubber extrusion lines
  
• Polymer melt pressure monitoring systems
  
• Food processing, medicine, and packaging equipment
  
• High-temperature fluid pressure control in industrial processes
  
• Suitable for demanding applications across UAE and MENA industrial facilities
  
  

Installation, Commissioning & Maintenance

1. Remove the protective cap only before installation and verify the mounting hole dimensions.
   
2. Use an aluminum gasket to ensure a secure and sealed connection.
   
3. Install the transducer so that the housing remains below 80 °C to preserve accuracy and lifespan.
   
4. Remove the sensor only when the polymer is molten; clean the diaphragm with a soft cloth.
   
5. Use shielded cables and ground at one end only to prevent interference.
   
6. Perform zero and span adjustments using the Z and S keys.
   
7. Utilize the internal 80 % calibration signal for quick verification.
   
8. Periodically check wiring integrity and maintain clean contact surfaces.
   

Why Choose Intelligent LCD Display Capillary Melt Pressure Transmitter PT124B-129/129T Series

The PT124B-129/129T Series stands out for its blend of accuracy, durability, and intelligent functionality. Its integrated LCD display, explosion-proof build, and HART-compatible output make it ideal for real-time control in high-temperature, high-pressure melt environments. The transmitter ensures consistent performance even in dynamic industrial setups.

By combining digital precision with robust mechanical construction, this model minimizes drift and maintenance needs, maximizing operational uptime. Its proven reliability and compatibility with leading industrial control systems make it a preferred solution for engineers seeking dependable melt pressure monitoring—available through Dubai Sensor, the official distributor in the region.

Ordering Guide

Example format:
PT124B-129 – 500 bar – 4/20 mA – 1/2-20 UNF – 6PIN

Ordering Steps:

1. Select Model: PT124B-129 or PT124B-129T (with temperature sensor)
   
2. Specify Pressure Range: e.g., 0–500 bar, 0–1000 bar
   
3. Choose Output Type: 4–20 mA (with optional HART)
   
4. Select Process Connection: 1/2-20 UNF, M14×1.5, M18×1.5, M22×1.5, G3/4
   
5. Define Electrical Connection: 6-PIN connector or wiring terminal
   
6. Specify Cable Length: Standard 5 m or optional lengths
   
7. Confirm Additional Requirements: Material coating, temperature options, etc.
   

Note: The PT124B-129/129T Series is supplied, supported, and serviced by Dubai Sensor, ensuring professional guidance and local availability for industrial clients.

FAQ – Intelligent LCD Display Capillary Melt Pressure Transmitter PT124B-129/129T Series

Q1: What is the measuring range of the PT124B-129/129T Series transmitter?
A: The PT124B-129/129T Series measures pressure from 0 to 1500 bar (0 to 150 MPa), making it suitable for high-pressure melt applications such as extrusion and polymer processing.

Q2: Does the transmitter support digital communication protocols?
A: Yes, it supports the two-wire 4–20 mA output and can be equipped with the HART protocol for digital communication and process control integration.

Q3: What type of display does this transmitter include?
A: It features a built-in LCD display that provides real-time local indication of measured pressure and status, improving on-site monitoring efficiency.

Q4: How is calibration performed on the PT124B-129/129T Series?
A: The transmitter includes an internal 80% calibration signal for quick verification and supports zero and span adjustments via its integrated control buttons (Z, S, and M keys).

Q5: What is the maximum operating temperature for this model?
A: The transmitter can operate in melt environments up to 400 °C at the diaphragm. However, the housing temperature should remain below 80 °C for optimal accuracy and long-term reliability.

Q6: What are the available process connection options?
A: Standard process connections include 1/2”-20 UNF, M14×1.5, M18×1.5, M22×1.5, and G3/4 threads, allowing compatibility with various industrial systems.

Q7: What materials are used for the wetted parts?
A: The wetted parts are made from stainless steel coated with 15-5PH, and the filling medium is mercury, ensuring durability and temperature stability during operation.

Q8: What kind of protection does the transmitter have?
A: The PT124B-129/129T Series features an IP67 protection grade and an explosion-proof aluminum housing, providing excellent resistance to harsh industrial environments.

Q9: What industries typically use this transmitter?
A: It is widely used in chemical fiber, polyester, plastic extrusion, rubber manufacturing, and food or medical processing equipment where accurate melt pressure measurement is essential.

Q10: Who distributes this product in the UAE and MENA region?
A: The Intelligent LCD Display Capillary Melt Pressure Transmitter PT124B-129/129T Series is distributed and supported by Dubai Sensor, ensuring reliable technical service and regional availability.