ABB 266HSH high overload gauge pressure transmitter

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Product Overview:

The ABB 266HSH High Overload Gauge Pressure Transmitter is a high-performance pressure measurement device from ABB’s 260 series. Designed for demanding industrial applications, it offers exceptional accuracy, stability, and an extremely high overload capability — up to 100 times the upper range limit.
The 266HSH supports multiple communication protocols including HART, Profibus PA, and FOUNDATION Fieldbus, making it ideal for integration into modern process control systems. With its robust design, it delivers reliable performance even under high pressure, vibration, and harsh environmental conditions.

Technical Specifications:

• Model: 266HSH

• Brand: ABB

• Type: High Overload Gauge Pressure Transmitter

• Measuring Range: 0 – 100 MPa (configurable)

• Maximum Overload Pressure: Up to 100 × URV

• Reference Accuracy: ±0.04% of reading (optional ±0.025%)

• Long-term Stability: ±0.1% / 10 years

• Output Signal: 4–20 mA DC + HART / Profibus PA / FOUNDATION Fieldbus

• Power Supply: 10.5 – 42 V DC

• Response Time: <100 ms

• Operating Temperature: -40°C to +85°C

• Process Temperature: -40°C to +120°C

• Protection Class: IP67 / NEMA 4X

• Wetted Materials: 316L SS, Hastelloy C, Tantalum, Monel (optional)

• Process Connection: 1/2” NPT, M20x1.5 or Flange

• Electrical Connection: M20x1.5 or 1/2” NPT

• Display: LCD with 90° rotatable head

• Explosion Protection: ATEX, IECEx, FM, CSA

• Weight: Approx. 3.5 kg

• Compliance: IEC 60529, EN 61326, NAMUR NE43

Features and Advantages:

1. Exceptional Overload Protection: Can withstand up to 100× the upper range limit.

2. High Measurement Accuracy: ±0.04% for precise process control.

3. Excellent Long-Term Stability: 10 years maintenance-free operation.

4. Rugged Construction: Corrosion-resistant materials for harsh environments.

5. Smart Communication: Supports HART, Profibus PA, and Fieldbus protocols.

6. Modular Design: Replaceable electronics and sensor modules for easy maintenance.

7. Explosion-Proof and IP67 Protection: Safe operation in hazardous areas.

8. Rotatable Display: Easy to read from any installation angle.

Applications:

• Oil and gas pipeline pressure monitoring

• Chemical and refinery process control

• Power plant boiler and steam pressure measurement

• Metallurgical and mining hydraulic systems

• Water and wastewater process automation

• High-pressure pumps and compressors

Precautions:

1. Ensure process connections are clean before installation.

2. Do not touch or press the sensing diaphragm.

3. Check wiring polarity to prevent damage.

4. Perform periodic calibration for accuracy.

5. Use proper wetted materials for corrosive media.

6. Never exceed rated pressure or temperature limits.

7. Follow explosion-proof installation standards strictly.

The structure and details of the product：

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