Product Specification

PMD75 Level Transmitter by Endress+Hauser – Reliable Monitoring for Liquids, Gases, and Steam

Product overview:

Endress+Hauser PMD75 Level Transmitter The PMD75 is a high-performance differential pressure level transmitter designed for precise and reliable measurement of liquids, gases, and steam in demanding industrial environments. Engineered with robust stainless-steel construction and advanced sensor technology, it ensures long-term stability, safety, and accuracy even under extreme process conditions.

Key benefits include:

1. High Accuracy & Stability – Delivers consistent measurement results for critical process control.
2. Versatile Applications – Suitable for liquids, gases, and steam across industries such as oil & gas, chemical, power, and water treatment.
3. Robust Design – Resistant to harsh environments, ensuring durability and reduced maintenance.
4. Easy Integration – Compatible with modern process automation systems for seamless operation.

The PMD75 combines Endress+Hauser’s trusted engineering with innovative technology, making it the ideal choice for industries that demand precision, reliability, and efficiency.

Applications of Endress+Hauser Deltabar Differential Pressure Level Transmitters

PMD75

1. Level Measurement: Accurate monitoring of liquid levels in pressurized and non-pressurized tanks.
2. Flow Measurement: Differential pressure across primary elements (e.g., orifice plates, Venturi tubes).
3. Steam Applications: Reliable in boiler drum level measurement and steam distribution systems.
4. Process Industries: Oil & gas, chemical, power generation, and water treatment.

PMD55

1. General Purpose: Cost-effective solution for standard level and differential pressure monitoring.
2. Utility Systems: Water supply, storage tanks, and auxiliary process vessels.
3. Industrial Services: Compressed air, inert gases, and non-critical liquid applications.

PMD70

1. Aggressive Media: With remote diaphragm seals, suitable for corrosive or contaminated fluids.
2. High-Temperature Processes: Chemical reactors, distillation columns, and hot oil systems.
3. Oil & Gas: Separation units, refining processes, and offshore platforms.

PMD75 (High Temp Variant)

1. Extreme Temperature: Steam boilers, superheated steam lines, and high-temp chemical processes.
2. Heavy Industry: Power plants, petrochemical furnaces, and metallurgy.
3. Safety-Critical Systems: SIL2/3 certified for use in safety instrumented functions.

Frequently Asked Questions (FAQ)

1. What is the PMD75 Level Transmitter used for?

The PMD75 is a differential pressure transmitter designed for accurate level, volume, and mass measurement in liquids, gases, and steam. It is widely used in industries such as oil & gas, chemical, power generation, and water treatment.

2. How does the PMD75 measure the level?

It measures the pressure difference between two points (e.g., the bottom and top of a tank). This differential pressure is converted into a level or volume reading, ensuring precise monitoring even under varying process conditions.

3. What is the accuracy of the PMD75?

The PMD75 offers ±0.075% of span accuracy, making it suitable for critical process control and safety applications.

4. Can the PMD75 handle high temperatures and pressures?

Yes. The standard PMD75 supports up to 125 °C (257 °F) process temperature and 160 bar (2320 psi) pressure. For extreme conditions, the high-temperature variant with remote seals can handle up to 400 °C (752 °F).

5. What communication protocols are available?

The PMD75 supports HART, PROFIBUS PA, and FOUNDATION Fieldbus, ensuring seamless integration into modern process automation systems.

6. Is the PMD75 suitable for safety-critical applications?

Yes. The PMD75 is SIL2/3 certified according to IEC 61508, making it reliable for use in safety instrumented systems (SIS).

7. What are the main differences between PMD55, PMD70, and PMD75?

1. PMD55 → Cost-effective, general-purpose differential pressure transmitter.
2. PMD70 → Designed with remote diaphragm seals for aggressive or hot media.
3. PMD75 → High-accuracy, robust design for critical industrial processes.
4. PMD75 High Temp → Optimized for extreme temperature and pressure conditions.

8. How easy is it to install and maintain?

The PMD75 features 3-key local operation, a modular design, and HistoROM data storage, which simplifies installation, commissioning, and maintenance.

9. What industries benefit most from the PMD75?

1. Oil & Gas → Separation units, refining, and storage tanks
2. Chemical → Reactors, distillation, and corrosive media
3. Power Generation → Boiler drum level, steam lines
4. Water & Wastewater → Reservoirs, treatment plants

10. Where can I get technical support or spare parts?

Endress+Hauser provides global service and support, including calibration, spare parts, and on-site assistance. Local representatives can be contacted through the official Endress+Hauser website.

Good Service

We offer high-quality, fast delivery, and competitive prices for Transmitters.

1. Please send your RFQ to get the latest price.
2. We will ship within 3–5 working days after receiving payment.
3. Flexible shipping options: UPS / DHL / EMS / FedEx – we will use your preferred method.
4. Large stock available with variable pricing – ensuring you always get a good deal.
5. For specific prices, please contact us directly.