High Accuracy Capillary Melt Pressure Transmitter PT124B-123/123T Series

Introduction – High Accuracy Capillary Melt Pressure Transmitter PT124B-123/123T Series

The High Accuracy Capillary Melt Pressure Transmitter PT124B-123/123T Series is a precision-engineered instrument designed for accurate measurement and control of melt pressure in high-temperature polymer, plastic, and chemical fiber processes. Manufactured by ZHYQ Sensor & Control, this transmitter features an alloy elastic diaphragm and stainless steel sealed construction that ensures exceptional performance and long-term stability even under demanding operating conditions.

The PT124B-123T version integrates a thermocouple (J, K, E, or PT100) for same-point measurement of pressure and temperature, providing a dual-parameter solution for advanced extrusion and polymer processing applications. Its amplified output signals (4–20 mA, 0–10 V, or 0–5 V) enable seamless compatibility with PLC systems and intelligent control instruments, ensuring process reliability and consistency.

With high accuracy up to ±0.5%FS, maximum temperature resistance of 350–400 °C, and excellent repeatability (±0.2%), this transmitter delivers reliable data essential for maintaining quality and safety in production environments. Built to meet industrial automation standards, it provides easy installation, internal 80% calibration, and robust anti-interference circuitry for stable operation.

Widely supplied by Dubai Sensor in the UAE and MENA region, the PT124B-123/123T Series transmitter supports industries such as chemical fiber, plastics, rubber, and food processing, offering world-class measurement performance with dependable service and support.

Key Features & Benefits

• High measurement accuracy up to ±0.5%FS
  
• Internal 80% calibration for easy setup and maintenance
  
• Maximum diaphragm temperature up to 350–400 °C
  
• Stainless steel sealed body with 15-5PH diaphragm coating for long service life
  
• Anti-interference circuit ensures stable and reliable signal output
  
• Zero and span adjustment capability for flexible calibration
  
• Compatible with PLC and intelligent instruments (N series, P series)
  
• Mercury-filled capillary for efficient pressure transmission
  
• Simple installation with multiple process connection options
  
• Interchangeable with similar imported models
  
  

Technical Specifications – High Accuracy Capillary Melt Pressure Transmitter PT124B-123/123T Series

Standards & Certifications

• Designed according to industrial process control standards
  
• Complies with CE and IP65 protection requirements
  
• Manufactured under ISO-certified quality management systems
  
• Meets safety and environmental protection requirements for industrial melt applications
  
  

Applications & Industries

• Chemical fiber spinning and polyester equipment
  
• Plastic and rubber extrusion systems
  
• Food processing and packaging machinery
  
• Pharmaceutical and medical production lines
  
• General high-temperature pressure control systems
  
  

The PT124B-123/123T Series ensures accurate and stable performance across a variety of industrial sectors, supporting critical operations in the UAE and MENA manufacturing and process industries.

Installation, Commissioning & Maintenance

• Remove the protective cap only before installation; ensure proper machining of the mounting hole.
  
• Install with aluminum gasket to prevent leaks and ensure sealing integrity.
  
• Perform zero and span adjustment at working temperature before operation.
  
• Clean the diaphragm only when the medium is molten, using a soft, lint-free cloth.
  
• Keep the electronic housing below 80 °C to extend service life and maintain accuracy.
  
• Use shielded cable grounded at one end to prevent signal interference.
  
• Avoid prolonged overload or exposure beyond rated pressure.
  
  

Why Choose High Accuracy Capillary Melt Pressure Transmitter PT124B-123/123T Series

The PT124B-123/123T Series stands out for its superior precision, thermal stability, and durability, making it ideal for demanding extrusion and polymer processing environments. Its high-performance 15-5PH diaphragm, adjustable zero and full scale, and PLC-compatible output ensure seamless integration into automated systems.

By combining world-class engineering with robust build quality, this transmitter provides consistent, traceable results that enhance process control and reduce downtime. Available from Dubai Sensor, it represents a reliable choice for companies seeking quality instrumentation in the UAE and wider MENA industrial sectors.

Ordering Guide

Example: PT124B-123T–500 bar–4/20 mA–1/2″-20 UNF–6PIN–J

To order, specify the model, pressure range, output signal, process thread, electrical connection, and temperature sensor type.
For authorized purchase and technical support in the UAE and MENA, Dubai Sensor is the official distributor of ZHYQ melt pressure transmitters.

FAQ – High Accuracy Capillary Melt Pressure Transmitter PT124B-123/123T Series

Q1: What is the main difference between PT124B-123 and PT124B-123T?
A1: The PT124B-123T model includes a built-in thermocouple (J, K, E, or PT100) that allows simultaneous measurement of both pressure and temperature at the same point. The PT124B-123 measures pressure only.

Q2: What is the maximum operating temperature of this transmitter?
A2: The diaphragm can operate safely up to 350–400 °C, while the electronic housing should be kept below 80 °C to maintain accuracy and extend service life.

Q3: What output signals are available?
A3: The PT124B-123/123T Series supports 4–20 mA, 0–10 V, and 0–5 V output options, making it compatible with PLC systems and intelligent control instruments.

Q4: How accurate is the PT124B-123/123T Series?
A4: The transmitter offers a comprehensive accuracy of ±0.5% FS, including linearity, repeatability, and hysteresis, with repeatability rated at ±0.2% FS.

Q5: What materials are used for the wetted parts and diaphragm?
A5: The wetted components are made of stainless steel coated with 15-5PH, providing excellent corrosion resistance and durability in high-temperature melt environments.

Q6: Can the PT124B-123/123T Series be calibrated in the field?
A6: Yes. It includes an internal 80% calibration signal for convenient on-site testing and calibration without removing the transmitter from the process line.

Q7: What are the standard process connection options?
A7: Common thread connections include 1/2″-20 UNF, M14×1.5, M18×1.5, M22×1.5, and G3/4, offering flexibility for various installation requirements.

Q8: How should the transmitter be maintained for long-term performance?
A8: Clean the diaphragm only when the medium is molten using a soft cloth. Avoid overpressure or exposure above rated limits, and use shielded cables grounded at one end to prevent electrical interference.

Q9: Is this transmitter suitable for use in food or pharmaceutical applications?
A9: Yes. The stainless-steel construction and sanitary sealing make it suitable for food processing, packaging, and pharmaceutical applications, provided the mercury-filled model complies with local safety regulations.

Q10: Where can I purchase the PT124B-123/123T Series in the UAE or MENA region?
A10: The High Accuracy Capillary Melt Pressure Transmitter PT124B-123/123T Series is available through Dubai Sensor, the authorized distributor for ZHYQ instruments in the UAE and surrounding regions.