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ENDRESS HAUSER 33AT04-AD1ED11F21A Promag Magnetic Flow Meter 1/2IN 85-260V-AC

33at04-ad1ed11f21a Endress Hauser Promag A Magnetic Flow Meter 1/2in 85-260v-ac

( Brand: Endress Hauser ), ( Manufacturer Part Number: 33AT04-AD1ED11F21A ), ( Size: 0.5 In ), ( Model Line: Promag A ), ( Reference Sku: 1754387 ), ( Product Condition: Used Excellent )

Review ENDRESS HAUSER Promag Magnetic Flow Meter 1/2in 85-260v-ac

The **Endress Hauser Promag 33AT04 (Model 33AT04-AD1ED11F21A)** is a high-performance, magnetic flow meter designed for precise and reliable measurement of conductive liquids in industrial applications. Part of Endress Hauser s renowned **Promag** series, this **1/2-inch (DN15)** flow meter operates on the principle of **electromagnetic induction**, ensuring accurate volumetric flow measurement without obstructions or moving parts, which minimizes maintenance requirements and extends operational lifespan. Powered by a **universal AC voltage range of 85 260V**, the unit is engineered for versatility, making it suitable for integration into diverse control systems and environments. Its robust **stainless steel housing** and **flanged connections** provide durability against harsh conditions, including high-pressure and corrosive media, while the **dual-channel measurement technology** enhances accuracy and redundancy, reducing the risk of errors in critical processes.

The **33AT04** is equipped with **Endress Hauser s patented Promag 3300 series electronics**, featuring a **large, high-resolution display** with intuitive navigation for easy setup, calibration, and monitoring. The meter supports **HART 7 communication protocol**, enabling seamless integration with SCADA systems, PLCs, and other industrial networks for real-time data acquisition and remote diagnostics. Its **wide turndown ratio of up to 200:1** ensures consistent performance across varying flow rates, from low to high velocities, making it ideal for applications such as water treatment, chemical processing, food and beverage production, and pharmaceutical manufacturing. The **self-diagnostic capabilities** and **automatic zeroing** further enhance reliability, while the **IP65/IP67 protection rating** ensures protection against dust, water, and other contaminants, even in demanding outdoor or semi-hazardous environments.

For applications requiring **high precision and repeatability**, the **33AT04** incorporates **Endress Hauser s advanced signal processing algorithms**, which compensate for temperature variations, conductivity fluctuations, and other external factors that could otherwise affect measurement accuracy. The **optional fieldbus communication (e.g., Profibus, Foundation Fieldbus)** expands its connectivity options, allowing for advanced process control and integration into Industry 4.0 frameworks. Additionally, the meter s **compact design** and **modular construction** simplify installation and retrofitting into existing pipelines without requiring significant modifications. Whether deployed in **clean or dirty water systems, acids, slurries, or other conductive fluids**, the **Promag 33AT04** delivers **superior measurement performance**, **long-term stability**, and **cost-effective operation**, making it a trusted choice for industries where flow measurement integrity is paramount.

### **Pros and Cons of buying a Endress Hauser Promag 33AT04 (1/2" Size, 85-260V AC)**

#### **Pros**

1. **High Accuracy and Reliability**

The Promag 33AT04 is known for its precise magnetic flow measurement, with an accuracy of 0.5% of the measured value over a wide range of fluids. It is well-suited for applications requiring consistent and dependable flow monitoring, such as water treatment, chemical processing, and food and beverage industries.

2. **Wide Range of Compatibility**

This model supports a variety of fluids, including conductive liquids (water, wastewater, acids, alkalis, and slurries). It is also suitable for applications involving abrasive or corrosive substances, thanks to its robust construction and optional lining materials (e.g., PTFE, rubber, or ceramic).

3. **Versatile Power Supply (85-260V AC)**

The wide voltage range (85-260V AC) makes it adaptable to different global electrical standards, reducing the need for additional power conversion equipment. This is particularly useful in international projects or facilities with varying power supplies.

4. **Durable and Low-Maintenance Design**

The Promag series is built with a robust housing and minimal moving parts, reducing the likelihood of mechanical failures. The magnetic flowmeter s design also minimizes clogging and wear, leading to lower maintenance requirements compared to mechanical flow meters (e.g., turbine or piston meters).

5. **Digital Communication and Integration**

The 33AT04 supports digital communication protocols such as **HART, Profibus, Foundation Fieldbus, and Modbus**, enabling seamless integration with SCADA systems, PLCs, or other industrial control networks. This facilitates remote monitoring, data logging, and automated control.

6. **Wide Flow Range (85-260V AC Model)**

The 1/2" size offers a broad flow range (typically 0.05 to 100 m /h, depending on the fluid), making it suitable for both low-flow and high-flow applications. The adjustable range further enhances its flexibility.

7. **Explosion-Proof and Hygienic Options**

Endress Hauser offers explosion-proof certifications (e.g., ATEX, IECEx) for hazardous environments, and hygienic designs (e.g., 3-A Sanitary or EHEDG compliance) for food, pharmaceutical, and biotech applications.

8. **Long Lifespan and Cost-Effective Operation**

With proper installation and maintenance, Promag flowmeters can operate for decades, reducing long-term replacement costs. Their energy efficiency and minimal calibration needs also contribute to operational savings.

9. **Easy Installation and Calibration**

The meter s clamp-on design (for some models) allows for easy installation without pipeline modifications, saving time and costs. Calibration is straightforward, often requiring only a few adjustments for optimal performance.

10. **Global Support and Warranty**

Endress Hauser is a well-established brand with extensive global support, including technical assistance, spare parts, and warranty coverage. This ensures reliable after-sales service and quick resolution of issues.

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#### **Cons**

1. **High Initial Cost**

The Promag 33AT04 is a premium product, and its upfront cost may be higher than that of basic mechanical or ultrasonic flowmeters. This could be a barrier for small businesses or budget-constrained projects.

2. **Limited to Conductive Fluids**

Unlike ultrasonic or turbine flowmeters, magnetic flowmeters **only work with conductive liquids**. For non-conductive fluids (e.g., gases, oils, or pure water), alternative technologies (e.g., Coriolis, ultrasonic, or turbine meters) would be required.

3. **Pressure Drop Considerations**

The meter introduces a slight pressure drop due to its internal structure, which may affect system efficiency in high-pressure applications. While minimal for most liquids, this should be factored into pipeline design.

4. **Potential for Signal Noise in Turbulent Flow**

In applications with highly turbulent or pulsating flow, the magnetic field may generate noise in the signal, requiring additional filtering or signal conditioning for accurate readings.

5. **Limited Temperature Range (Depending on Model)**

While the 33AT04 is designed for a wide temperature range (typically -20 C to 120 C, depending on the lining), extreme temperatures may require special materials or configurations, adding to costs.

6. **Calibration Dependency on Fluid Properties**

The meter s accuracy relies on knowing the fluid s conductivity and viscosity. If these properties change (e.g., due to contamination or temperature variations), recalibration may be necessary.

7. **Complexity for Non-Experts**

Configuring digital communication protocols (e.g., HART or Profibus) may require technical expertise, especially for users unfamiliar with industrial automation. Training or consulting may be needed.

8. **Potential for Lining Wear Over Time**

While durable, the internal lining (e.g., PTFE, rubber) can degrade over time due to abrasion or chemical exposure, necessitating periodic inspection and potential replacement.

9. **Size Limitations for Very Small or Large Pipelines**

The 1/2" size is suitable for medium-flow applications but may not be ideal for very small (e.g., 1/4") or very large (e.g., 4" or above) pipelines, where different models would be required.

10. **Dependency on Proper Installation**

Misalignment or improper grounding can lead to inaccurate readings or signal errors. Unlike some other meters, the Promag requires careful installation to ensure optimal performance.

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### **Conclusion**

The **Endress Hauser Promag 33AT04 (1/2", 85-260V AC)** is a **highly reliable, accurate, and versatile magnetic flowmeter** ideal for applications requiring precise measurement of conductive liquids in industrial, municipal, or hygienic environments. Its **wide voltage compatibility, digital communication capabilities, and low-maintenance design** make it a strong choice for facilities prioritizing long-term performance and integration with automation systems.

However, its **higher cost, limitation to conductive fluids, and complexity for non-technical users** may make it less suitable for budget-sensitive or simple applications. Additionally, users must ensure the fluid properties align with the meter s requirements and that installation adheres to best practices.

### **Recommendation**

**Buy the Endress Hauser Promag 33AT04 if:**

- You need **high-accuracy flow measurement** for conductive liquids (water, wastewater, chemicals, slurries).

- Your application requires **digital communication (HART, Profibus, etc.)** for integration with SCADA or PLC systems.

- You operate in a **global environment** with varying power supplies (85-260V AC).

- **Long-term reliability and low maintenance** are critical for your process.

- You are working in **hazardous, hygienic, or abrasive environments** where durability is essential.

**Consider alternatives if:**

- Your budget is **strictly limited**, and a lower-cost meter (e.g., basic turbine or ultrasonic) suffices.

- You measure **non-conductive fluids** (gases, oils, pure water), requiring a Coriolis or ultrasonic meter.

- Your application involves **extreme temperatures or pressures** beyond the meter s standard range.

- You lack **technical expertise** for configuration and troubleshooting.

For most **industrial, municipal, or process control applications** where accuracy and reliability are paramount, the **Promag 33AT04 is a robust and justified investment**. However, a thorough cost-benefit analysis should be conducted to ensure it aligns with your specific requirements.

Details:

Model Line:PROMAG. Safety and Security. Solenoid Coils. Rotary Lobe Blowers.

Flow Indicators. Solenoid Valves. Shock Absorbs.

part #: 33at04ad1ed11f21a price

  • $949.55

specifications pneumativalv:

  • brand: Endress Hauser
  • mpn: 33at04-ad1ed11f21a
  • size: 0.5 In
  • model line: Promag A
  • reference sku: 1754387
  • product condition: Used Excellent

general pneumativalv:

  • condition: Used
  • Pump Flow Controllers > Flow Controllers Meters > Flow Meters

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  • started: March 23, 2026
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size: 0.5 in, model line: promag a, reference sku: 1754387, product condition: used excellent,
category: business & industrial > pump flow controllers > flow controllers meters > flow meters, sku: 11995613773351892,
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