Produkt
E+H Deltabar PMD55B High Precision Smart Differential Pressure Transmitter
PMD55B-AABACBH37BCASAJA1D+VD
The PMD55B High Precision Smart Differential Pressure Transmitter delivers exceptionally accurate differential pressure, flow, and hydrostatic level measurements for industrial liquids, gases, and steam. Featuring a robust metallic diaphragm, ultra-low long-term drift, optional wireless Bluetooth operation, and SIL2/3 functional safety certifications, this versatile instrument provides stable, error-free process monitoring across harsh chemical, oil, and water treatment environments.
The PMD55B Smart Differential Pressure Transmitter is an advanced digital field instrument built to solve complex process automation challenges in modern industrial facilities. Equipped with a high-precision metallic piezoresistive sensor, this transmitter translates slight differential pressure fluctuations into reliable standard signals for flow monitoring, tank level measurement, and equipment health diagnosis.

Its piezoresistive metal diaphragm offers robust protection against thermal shock and high line pressure overloads, making it an essential instrument for chemical processing, energy generation, water utilities, and heavy manufacturing.Engineered with high operational safety and digital connectivity in mind, the PMD55B significantly streamlines commissioning, daily maintenance, and device troubleshooting.

The device integrates seamlessly into modern fieldbus networks, supporting HART communication and Ethernet-APL alongside optional Bluetooth connectivity. Plant operators can interact with the instrument remotely in hard-to-reach or hazardous locations without breaking process lines. Built-in software wizards guide technicians through step-by-step setup and SIL proof testing, eliminating setup errors and lowering the overall cost of ownership over long operational lifetimes.

FAQ
Q: Can this differential pressure transmitter be used for both liquid and gas flow measurement?
A: Yes. When paired with differential pressure flow elements like orifice plates, Pitot tubes, or Venturi tubes, the PMD55B accurately measures the flow rate of gases, vapors, and liquids.

Q: What is the benefit of the Bluetooth wireless operation function?
A: Bluetooth operation enables maintenance engineers to configure, commission, and check device diagnostics wirelessly via a mobile device app without physically touching the transmitter, which greatly enhances safety in hazardous or elevated locations.
Q: Is the PMD55B certified for safety-critical environments?
A: Absolutely. It complies with international functional safety standards up to SIL2/SIL3 and holds global explosion-proof certificates including ATEX, IECEx, CSA, and NEPSI.

Q: What process diaphragm materials are available to prevent chemical corrosion?
A: The standard wetted diaphragm materials include 316L Stainless Steel and corrosion-resistant Alloy C, allowing the device to withstand harsh industrial chemicals and aggressive media.
Technische Daten
| Measuring Principle | Differential pressure |
|---|---|
| Characteristics / Application | Transmitter with metal membrane for differential pressure monitoring in liquids or gases. Intuitive and clear wizard for commissioning |
| Features | Bluetooth® operation and maintenance with SmartBlue App, RFID TAG for easy identification, Plug and play functionalities |
| Power Supply / Communication | Ex d, Ex e, non-Ex: 10.5...35V DC; Ex i: 10.5...30V DC |
| Measurement Accuracy | Standard: up to 0.075%; Platinum: up to 0.055% |
| Long-term Stability | 0.05 % of URL / year; 0.13 % of URL / 5 years; 0.23 % of URL / 10 years |
| Ambient Temperature | -40°C...+85°C (-40°F...+185°F) |
| Process Temperature | -40°C...+110°C (-40°F...+230°F) |
| Process Pressure (Absolute) / Max. Overpressure Limit | 250 bar (3750 psi) |
| Pressure Measuring Range | 10 mbar...40 bar (0.15 psi...600 psi) |
| Main Wetted Parts | 316L, Alloy C |
| Process Connection | NPT 1/4-18, RC 1/4" |
| Communication | 4...20 mA HART, PROFINET with Ethernet-APL, Bluetooth® wireless technology and app (optional) |
| Certificates and Approvals | ATEX, CSA, IECEx, JPN Ex, KC, INMETRO, NEPSI, UK Ex |
| Safety Certification | SIL |
| Design Approval | EN 10204-3.1, NACE MR0175, NACE MR0103, AD2000 |
| Drinking Water Approvals | NSF, KTW |
| Application Limits | None |
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