Endress+Hauser Deltabar PMD55: Versatile Differential Pressure Transmitter

The Endress+Hauser Deltabar PMD55 is a compact and robust differential pressure transmitter designed for continuous measurement of pressure differences in liquids, vapors, and gases across various industrial applications. It offers a reliable and cost-effective solution for monitoring:

• Flow rate: Used in conjunction with primary flow elements like orifice plates or Venturi tubes to infer flow rate based on the differential pressure created.
• Level: Measures liquid level in tanks and vessels by determining the pressure exerted by the liquid column.
• Filter monitoring: Detects clogging in filters by monitoring the pressure difference across the filter element.
• Interface level: Measures the level between two immiscible liquids in a tank.
• Pump control: Monitors pump performance and provides feedback for control loops in various processes.

Key Features and Benefits:

• Differential pressure measurement: Measures pressure difference with high accuracy (0.1% of reading or better, with a “PLATINUM” version offering up to 0.075% accuracy).
• Wide pressure range: Handles process pressures up to 40 bar (max. 580 psi).
• Metal sensor with welded membrane: Ensures durability and resistance to harsh process conditions and media.
• Turn down ratio of 100:1: Offers a wide measurement range with a single device, reducing inventory needs.
• Local display and operation: Enables easy configuration, monitoring, and basic adjustments directly on the device.
• HART communication protocol: Supports seamless integration with existing control systems using industry-standard HART communication.
• Optional features: Profibus PA, FOUNDATION Fieldbus communication protocols and Bluetooth connectivity (via Endress+Hauser SmartBlue App) for remote configuration and diagnostics.
• Robust construction: Withstands demanding industrial environments.
• Fast commissioning: DIP switch configuration allows for quick and easy setup.
• Cost-effective: Provides accurate and reliable measurement at a competitive price.

Applications:

• Chemical and process industries: Monitoring flow rates, levels, and filter performance in various chemical processes.
• Oil and gas industry: Differential pressure measurement for flow, level, and interface level monitoring in oil and gas production and refining.
• Food and beverage industry: Monitoring levels in tanks, pressure differences across filters, and pump performance in food and beverage production.
• Water and wastewater treatment: Flow measurement in pipes, level monitoring in tanks, and filter monitoring in water treatment plants.
• Building automation: Pressure and differential pressure measurement for various applications in building management systems like HVAC control.

Compared to the Deltabar PMD75B, the Deltabar PMD55 offers a more basic and cost-effective solution with slightly lower accuracy and a reduced pressure range. However, it still provides sufficient performance for many industrial applications.

Here’s a quick comparison table highlighting the key differences: