Submersible Hydrostatic Level Transmitter PT124B-220 Series

Introduction – Submersible Hydrostatic Level Transmitter PT124B-220 Series

The Submersible Hydrostatic Level Transmitter PT124B-220 Series is a high-performance static pressure sensor designed for precise liquid level measurement in challenging industrial and environmental applications. By converting liquid pressure into a standard electrical signal (4–20 mA, 0–5 V, 0–10 V, or RS485 Modbus), it enables accurate remote monitoring, control, and automation through industrial instruments or computer systems.

This transmitter features a robust stainless-steel (SS304) housing and a fully sealed IP68 design, allowing continuous submersion without leakage. Its anti-sand protection cap safeguards the diaphragm from particulate damage, ensuring long-term reliability. The PT124B-220 Series offers various output options and Modbus communication, making it suitable for integration with PLCs, SCADA systems, and process control networks.

Built with advanced encapsulation and assembly technology, this transmitter maintains excellent moisture, corrosion, and temperature resistance, even under prolonged exposure to harsh media. It can be equipped with wear-resistant, oil-resistant, and acid/alkali-resistant vented cables, ensuring stable signal transmission unaffected by external pressure changes.

The Submersible Hydrostatic Level Transmitter PT124B-220 Series, available from Dubai Sensor, delivers dependable performance across a wide range of industrial, environmental, and municipal water management applications throughout the UAE and MENA region.

Key Features & Benefits

• Wide measuring range: 0…1 mH₂O to 0…50 mH₂O (≈ 100 mbar to 5000 mbar / 0.1 bar to 5 bar)
  
• Multiple output signals: 4–20 mA, 0–5 V, 0–10 V, and RS485 (Modbus RTU)
  
• High accuracy options: ±0.1 % FS / ±0.25 % FS / ±0.5 % FS / ±1 % FS
  
• Fast response time: < 10 ms for real-time monitoring
  
• IP68 protection: reliable for continuous immersion
  
• Excellent long-term stability: ≤ ±0.2 % FS per year
  
• Corrosion-proof SS304 structure: suitable for various liquid types
  
• Flexible vented cable materials: PE or PU, resistant to oil, acids, and alkalis
  
• Digital calibration and diagnostics: Modbus RTU communication support
  
• Compact, maintenance-free design: ideal for remote or confined installations
  
  

Technical Specifications – Submersible Hydrostatic Level Transmitter PT124B-220 Series

Standards & Certifications

• Protection class: IP68 (continuous submersion)
  
• Communication protocol: Modbus RTU (industrial standard)
  
• Power standard: 12–36 V DC supply
  (No CE, ATEX, or SIL certifications indicated in the datasheet.)

Applications & Industries

• Water and Wastewater Treatment: Reservoirs, sedimentation tanks, and clear-water storage
  
• Oil and Gas: Storage tanks, buffer tanks, and transport pipeline monitoring
  
• Chemical and Petrochemical: Reactors, storage tanks, and process vessels
  
• Power Industry: Boiler drum water level and cooling tower basins
  
• Food and Pharmaceutical: Fermentation and raw-material tanks
  
• Environmental Monitoring: Wastewater and sewage management systems
  
• Agriculture and Water Conservancy: Rivers, lakes, and irrigation reservoirs
  
• Urban Infrastructure: Constant-pressure water supply and drainage systems
  
  

(Widely used across UAE and MENA industries for reliable hydrostatic level control.)

Installation, Commissioning & Maintenance

The PT124B-220 Series is installed by simply immersing the probe to the required depth and securing the vented cable safely above the liquid surface. Ensure the cable’s vent tube remains unobstructed for proper pressure compensation.
Before commissioning, verify the power supply (24 V DC typical) and signal connection (4–20 mA, voltage, or RS485) according to the wiring diagram. Periodic cleaning of the anti-sand cap and cable inspection maintains long-term stability. No recalibration is normally needed unless used in high-contamination environments.

Why Choose Submersible Hydrostatic Level Transmitter PT124B-220 Series

Engineered by Shanghai Zhaohui Pressure Apparatus Co., Ltd., this transmitter combines precision engineering, stable performance, and robust mechanical design to deliver dependable measurement even in demanding applications. Its versatile output options and communication compatibility make it suitable for modern process automation systems.

When sourced through Dubai Sensor, customers in the UAE and MENA benefit from local technical support, fast delivery, and reliable after-sales service — ensuring efficient integration and maximum system uptime.

Ordering Guide

How to Order:

1. Select the model PT124B-220 Series.
   
2. Specify measuring range (e.g., 10 mH₂O, 20 mH₂O, 50 mH₂O).
   
3. Choose output signal (4–20 mA, 0–5 V, 0–10 V, or RS485).
   
4. Define cable length and special material requirements (oil-, acid-, or wear-resistant).
   
5. Confirm order through Dubai Sensor, the authorized distributor for the UAE and MENA region.

aFAQ – Submersible Hydrostatic Level Transmitter PT124B-220 Series

Q1: What is the measuring principle of the PT124B-220 Series?
A: The transmitter measures the hydrostatic pressure exerted by the liquid column above its sensing element. This pressure is converted into an electrical signal proportional to the liquid level, providing accurate level measurement for various fluids.

Q2: What is the maximum measuring range available?
A: The PT124B-220 Series supports measurement ranges from 1 mH₂O to 50 mH₂O (equivalent to 0.1 bar to 5 bar), depending on configuration and cable length.

Q3: Can it be used for continuous immersion?
A: Yes. With its IP68-rated stainless-steel housing and vented cable design, the transmitter is suitable for continuous submersion in clean or slightly contaminated liquids.

Q4: What output signal options are available?
A: The transmitter offers 4–20 mA (2-wire), 0–5 V / 0–10 V (3-wire), and RS485 Modbus RTU output options, ensuring compatibility with most control and monitoring systems.

Q5: What is the accuracy of the PT124B-220 Series?
A: It provides multiple accuracy levels: ±0.1 % FS, ±0.25 % FS, ±0.5 % FS, and ±1 % FS, depending on the selected model and calibration.

Q6: Is the cable resistant to chemical or environmental damage?
A: Yes. The transmitter can be supplied with Polyethylene (PE) or Polyurethane (PU) vented cables that are oil-, acid-, alkali-, and wear-resistant, suitable for harsh industrial environments.

Q7: What type of maintenance does it require?
A: Maintenance is minimal. Periodically clean the anti-sand protective cap and inspect the cable vent tube to ensure unobstructed air flow. Recalibration is rarely needed due to its excellent long-term stability (±0.2 % FS/year).

Q8: Does the PT124B-220 support digital communication?
A: Yes. The RS485 version uses the Modbus RTU protocol, allowing data readout, configuration, and diagnostics via standard industrial communication networks.

Q9: What environments is it suitable for?
A: Ideal for water and wastewater treatment, oil and gas, chemical, food and pharmaceutical, environmental monitoring, and agricultural water management applications.

Q10: What temperature ranges can it operate in?
A: The transmitter operates reliably between –10 °C and +80 °C, with a compensated temperature range of 0 °C to +70 °C and storage range of –40 °C to +85 °C.