Description
Detailed Parameter Table
| Parameter Name | Parameter Value |
| Product Model | ABB DP820 |
| Manufacturer | ABB |
| Product Category | Differential Pressure Transmitter |
| Pressure Range | 0-25 mbar to 0-40 bar (selectable) |
| Accuracy | ±0.075% of span |
| Output Signal | 4-20 mA with HART® protocol |
| Power Supply | 10.5-45 V DC |
| Process Connection | 1/4″ NPT or G1/4″ |
| Process Temperature | -40°C to +85°C |
| Ambient Temperature | -40°C to +85°C |
| Protection Rating | IP65 |
| Housing Material | Aluminum with epoxy coating |
| Certifications | SIL 2, ATEX, IECEx, CE |
ABB DP820
Product Introduction
The ABB DP820 is a high-precision differential pressure transmitter designed for demanding industrial process applications. As part of ABB’s renowned measurement instrumentation portfolio, the ABB DP820 delivers exceptional accuracy and reliability in liquid, gas, and steam flow measurement applications. With its robust construction and advanced diagnostic capabilities, this transmitter is engineered to perform in the most challenging environments.
Featuring a ±0.075% accuracy and wide turndown ratio, the ABB DP820 provides precise measurement across various industrial processes. Its compact design and flexible configuration options make it suitable for installation in space-constrained locations while maintaining excellent measurement performance.
Core Advantages and Technical Highlights
Superior measurement performance: The ABB DP820 utilizes advanced sensor technology to deliver industry-leading ±0.075% accuracy, ensuring reliable process control and optimization. The transmitter maintains stability over time with minimal drift, reducing calibration frequency.
Robust industrial design: Built to withstand harsh environments, the ABB DP820 features an aluminum housing with epoxy coating (IP65 protection) and operates across an extensive temperature range (-40°C to +85°C). The design includes overpressure protection up to 40 bar.
Advanced diagnostics: Integrated HART® communication enables remote configuration, diagnostics, and predictive maintenance capabilities. The transmitter provides comprehensive diagnostic information to support condition-based maintenance strategies.
Flexible installation: With multiple process connection options (1/4″ NPT or G1/4″) and compact dimensions, the ABB DP820 can be easily installed in various orientations to suit different application requirements.
Typical Application Scenarios
The ABB DP820 is ideally suited for:
Oil & Gas: Flow measurement in pipelines, wellhead monitoring, and refinery processes
Chemical Processing: Precise differential pressure measurement in reactors and distillation columns
Power Generation: Steam flow measurement in boilers and turbines
Water Treatment: Filter monitoring and pump protection systems
HVAC Systems: Air flow measurement and filter monitoring in large commercial buildings
In these applications, the ABB DP820 provides reliable and accurate measurement data critical for process efficiency, safety, and regulatory compliance.
ABB DP820
Related Model Recommendations
ABB DP840: Higher accuracy (±0.04%) differential pressure transmitter
ABB DS400: Smart pressure transmitter with additional process variables
ABB 266MST: Multivariable pressure transmitter with temperature compensation
ABB 2600T: Compact pressure transmitter for general industrial applications
ABB PX400: High-performance pressure transmitter for critical applications
Installation, Commissioning and Maintenance Instructions
Installation preparation: Mount the ABB DP820 in a location free from excessive vibration and temperature extremes. Ensure proper orientation (vertical mounting recommended for gas applications) and use appropriate sealing materials for process connections. Allow sufficient space for wiring and maintenance access.
Maintenance suggestions: Perform zero calibration during initial commissioning and periodic verification checks. Monitor diagnostic parameters through HART® communication for early detection of potential issues. Keep the transmitter clean from process media buildup and environmental contaminants.
Service and Guarantee Commitment
ABB provides a standard 36-month warranty for the ABB DP820, covering manufacturing defects. Global technical support is available through ABB’s measurement and analytics service network, including:
On-site commissioning and calibration services
Predictive maintenance program enrollment
24/7 technical support hotline
Firmware updates and configuration assistance
Extended warranty options and comprehensive service agreements are available for critical applications requiring maximum uptime assurance.
