| Customization: | Available |
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| Type: | Differential Pressure Transmitter |
| Contact: | Contact |
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| Parameter | Specification | Standard/Certification |
|---|---|---|
| Measured Variable | Differential pressure, level, flow | ISO 5167-1 |
| Pressure Range | 0-40 bar (0-580 psi) | Accuracy: ±0.075% of span |
| Accuracy | ±0.075% of span (optional: ±0.05%) | IEC 60770-1 |
| Long-Term Stability | ±0.1% of span per year | OIML R117 |
| Output Signal | 4-20 mA HART® 7, PROFIBUS PA, FF | IEC 61158-2 |
| Power Supply | 12-30 V DC (loop-powered) | NEC Class 1, Division 2 |
| Process Temperature | -40°C to +120°C (-40°F to +248°F) | IEC 60751 (Pt100) |
E+H Endress+Hauser Deltabar PMD55B Differential Pressure Transmitter - Product Description
The E+H Endress+Hauser Deltabar PMD55B Differential Pressure Transmitter is a high-precision instrument designed for reliable measurement of differential pressure, level, and flow in demanding industrial applications. Renowned for its accuracy, robustness, and versatility, it serves critical roles in oil and gas, chemical processing, water treatment, HVAC systems, and offshore installations. Combining advanced sensor technology with rugged construction, the PMD55B ensures optimal process control, safety, and efficiency even in extreme environments.
Core Technical Performance
The Deltabar PMD55B operates across a wide pressure range of 0-40 bar (580 psi) with an exceptional accuracy of ±0.075% of span (±0.05% optional). Its high-resolution sensor delivers stable measurements for differential pressure (DP), level, and flow, even in applications with rapid pressure fluctuations or corrosive media. The transmitter functions seamlessly in process temperatures ranging from -40°C to +120°C (-40°F to +248°F) and is compatible with a variety of fluids, including aggressive chemicals, steam, and gases.
Robust Design and Material Integrity
Constructed with a 316L stainless steel or Hastelloy C-276 diaphragm, the PMD55B resists corrosion from harsh media such as hydrogen sulfide , hydrochloric acid (HCl), and saltwater. The housing is available in aluminum (IP67) for general use or stainless steel (IP69K) for harsh environments, ensuring protection against dust, moisture, and high-pressure washdowns. Its compact, modular design simplifies installation in space-constrained areas, while the no-moving-parts architecture minimizes wear and maintenance.
Advanced Functional Capabilities
High Accuracy and Stability: ±0.075% span accuracy with long-term stability of ±0.1% per year, ideal for custody transfer and critical process control.
HART® 7 and PROFIBUS PA Integration: Enables remote configuration, diagnostics, and seamless communication with DCS/PLC systems.
Intelligent Diagnostics: Monects overpressure, sensor drift, and process anomalies, providing early warnings to prevent downtime.
Energy Efficiency: Loop-powered operation (12-30 V DC) reduces energy consumption and supports sustainable operations.
Industry-Specific Applications
Oil & Gas: Measures level in separators, flow in pipelines, and filters in refineries, compliant with NACE MR0175 for sour gas environments.
Chemical Processing: Handles corrosive fluids in reactors, distillation columns, and storage tanks with PTFE seals and Hastelloy components.
Water/Wastewater: Monitors pump performance, filter clogging, and tank levels in treatment plants with IP69K-rated housings.
HVAC Systems: Tracks air and water flow in ducts and chillers, optimizing energy efficiency and system performance.
Certifications and Compliance
The PMD55B meets stringent global standards, including ATEX/IECEx Ex d IIC T6 Gb for hazardous areas (Zone 1/21), SIL 2 functional safety (IEC 61508/61511), and DNV GL/ABS marine certifications for offshore platforms. Its EMC immunity (30 V/m @ 80 MHz-1 GHz) ensures reliable performance in electrically noisy environments.
Competitive Advantages
Plug-and-Play Installation: Pre-calibrated for common media (water, oil, gas) with intuitive setup via local display or FieldCare™ software.
Versatile Mounting Options: Supports direct flange, capillary, or remote seal installations for flexible integration.
Global Support Network: Endress+Hauser's worldwide service teams provide rapid technical assistance, calibration, and spare parts.
Our Services
OEM / ODM services
To meet the user diversified requirement, Holykell have established a set of customer service and technical support system with OEM / ODM order as the center, and responded and Handle the customer's requirements in a timely manner to ensure accurate delivery time and product quality.
Order services
Fastest reply:Professional sales engineers 7/24 online services
Payment terms:T/T ,Western union, Paypal, Credit Card, L/C others
Fast delivery: within 24 hours release the cargo (normal spec.), Customized 7-12 days after payment .
MAINTENANCE & AFTER-SALES SERVICES
Customer Feedback: Sales engineers and technical engineers will be one-on-one service for you to exclude all obstacles when use our sensors.
Warranty period: 12 months
Product life-long maintenance: Holykell can provide you with the maintenance of the whole life of the sensors
Q: How long will you give me the reply?
A: We will reply to you as soon as we see the information
Q: What is the delivery time?
A:The products in stock will be shipped after receiving the payment, and the products that need to be ordered are subject to the factory time.
Q: How about your package?
A: Do not worry about the package, we have rich experience in packing.
Q: How about the payment terms?
A:You can choose T/T.
Q: What is the MOQ?
A:1PC.
Q: Can I get a lower price if I order large quantities?
A: Yes, cheaper prices with more bigger size orders.
Q:After sales and warranty?
A: We provide one year warranty lifetime technical support services.
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