E&H 8Q5B Coriolis Mass flowmeter

Technical Specification: E&H 8Q5B Coriolis Mass Flowmeter (Promass Q 500) for Gas-Liquid Two-Phase Applications

In the realm of precision process instrumentation, the E&H 8Q5B Coriolis mass flowmeter represents the pinnacle of engineering excellence for demanding applications involving entrained gases. As part of the innovative Promass Q 500 series, this instrument combines Endress+Hauser’s advanced Multi-Frequency Technology (MFT) with robust construction to deliver unparalleled measurement performance. At ST-YUKE CO., LIMITED, we specialize in supplying this cutting-edge solution to clients requiring uncompromising accuracy for custody transfer and complex fluid measurement applications.

Product Series Overview: The Q500 Family

The Promass Q 500 series is specifically engineered to provide the highest measurement accuracy for mass flow, volume flow, and density, making it the preferred choice for custody transfer applications . The portfolio is structured by nominal diameter to accommodate diverse flow requirements:

8Q5B25 (DN 25 / 1″) – Compact solution for lower flow rates

8Q5B50 (DN 50 / 2″) – Mid-range capacity for general process lines

8Q5B80 (DN 80 / 3″) – High-capacity version for main process flows

*Note: The series extends to larger line sizes such as 8Q5B1H (DN 100 / 4″) for higher capacity requirements .*

Key Technical Specifications

The 8Q5B series stands out for its exceptional accuracy and ability to handle gas-liquid two-phase mixtures without compromising performance .

Performance Data

Mass Flow Accuracy (Liquid – Standard): ±0.10%

Mass Flow Accuracy (Liquid – PremiumCal Option): ±0.05%

Mass Flow Accuracy (Gas): ±0.25%

Volume Flow Accuracy (Liquid): ±0.10%

Density Accuracy (Liquid – Standard): ±0.2 kg/m³

Density Accuracy (Liquid – Optional): ±0.1 kg/m³

Measuring Range: 0 to 2,400,000 kg/h (0 to 88,183 lb/min)

Operating Conditions

Medium Temperature Range (Standard): –50 to +205°C (–58 to +401°F)

Medium Temperature Range (Cryogenic Option): –196 to +150°C (–321 to +302°F)

Maximum Process Pressure: PN 100, Class 600, 63K

Ambient Temperature Range: –40 to +60°C (–40 to +140°F); optional –50 to +60°C

Ingress Protection (Sensor Remote): IP66/67, Type 4X enclosure; IP69 optional

Wetted Materials

Measuring Tube: 1.4404 (316/316L); stainless steel for cryogenic applications

Process Connections: 1.4404 (316/316L)

Sensor Housing: 1.4404 (316L), highest corrosion resistance

Communication and Outputs

The Promass Q 500 transmitter features a remote design with up to 4 I/Os for maximum flexibility:

Outputs: 4-20 mA HART (active/passive), 4-20 mA WirelessHART, pulse/frequency/switch output, double pulse output, relay output

Inputs: Status input, 4-20 mA input

Digital Communication: HART, PROFIBUS DP, PROFIBUS PA, FOUNDATION Fieldbus, Modbus RS485, PROFINET, Ethernet/IP, OPC-UA

Power Supply: DC 24 V; AC 100 to 230 V; AC 100 to 230 V / DC 24 V

Approvals and Certificates

Hazardous Area: ATEX, IECEx, cCSAus, NEPSI, INMETRO, EAC, KC

Metrological: MI-005, OIML R117, NTEP, MC

Marine: LR, DNV, ABS, BV, CCS approvals

Material: 3.1 material certificate, NACE MR0175/MR0103

Core Technology: Optimized for Gas Entrainment

What truly distinguishes the E&H 8Q5B Coriolis mass flowmeter is its ability to handle gas-liquid two-phase mixtures. The Q500 series employs Multi-Frequency Technology (MFT) , which simultaneously analyzes multiple measuring tube frequencies to maintain stability and accuracy even with significant gas entrainment . This makes the 8Q5B50 and its siblings ideal for applications prone to gas breakthrough or cavitation.

Heartbeat Technology

Like all modern Promass instruments, the 8Q5B incorporates Heartbeat Technology for proactive process management :

Continuous self-diagnosis without process interruption

In-situ verification traceable to ISO 9001:2015 requirements

Meter verification on demand, eliminating costly manual checks

Additional Benefits

Multivariable Measurement: Simultaneous measurement of mass flow, density, temperature, volume flow, corrected volume flow, reference density, and concentration

Space-Saving Installation: No inlet or outlet run requirements

User-Friendly Interface: Backlit display with touch control and WLAN access

Detailed Ordering Code Breakdown: 8Q5B25-BDEGAAAAFBAA1BSAD4SBA1

To illustrate the extensive customization available, ST-YUKE CO., LIMITED provides a detailed解析 of the order code for the 8Q5B25 model. Understanding these features is crucial when specifying a flowmeter for critical applications like custody transfer or fiscal measurement.

Base Model: 8Q5B25

8Q5B: Coriolis flowmeter, Promass Q 500 series, remote version with up to 4 I/Os

25: Nominal diameter DN25 (1″)

Breakdown of the Feature String: BDEGAAAAFBAA1BSAD4SBA1

Based on standard Endress+Hauser product structuring logic, we can interpret this configuration as follows:

B (Approval – Sensor): ATEX/IECEx Zone 1/21 approval for gas and dust hazardous areas

D (Output – Transmitter): Digital communication protocol – likely PROFIBUS PA or specific HART configuration

E (Display – Transmitter): Backlit display with touch control and WLAN access

G (Housing – Sensor): Sensor housing material – 1.4404 (316L) with enhanced corrosion resistance

A (Process Connection – Type): Standard flange type (to be defined by subsequent codes)

A (Process Connection – Size): DN25 (1″) flanges, matching the 8Q5B25 base selection

A (Measuring Tube – Material): Standard 1.4404 (316/316L) stainless steel

A (Internal Surface Finish): Standard finish, not polished

A (Sensor – Advanced Features): Standard version without special options

F (Calibration – Flow): PremiumCal option with ±0.05% accuracy

B (Calibration – Density): Enhanced density calibration (likely ±0.1 kg/m³ option)

A (Sensor – Inspection): Without special inspection

A (Medium Contact – Wetted Seals): Standard seal material (Viton)

1 (Sensor – Special Testing): Basic testing protocol

B (Sensor – Ex Approval Detail): Confirms sensor Ex approval configuration

S (Additional Test – Certificate): EN10204-3.1 material certificate

A (Additional Approval – Transmitter): Without special transmitter approval

D (Output – Transmitter Detailed): Specific I/O configuration (e.g., 4-20mA HART with multiple channels)

4 (Power Supply): AC 100-230 V power supply option

S (Housing – Transmitter): Transmitter housing material – AlSi10Mg, coated

B (Cable Entry): Cable gland M20 (standard)

A (Language – Display): English language for display and documentation

1 (Additional Option): Standard version with basic accessories

Note: While this is a representative breakdown based on standard E+H product logic, actual configurations should always be verified with the official Endress+Hauser configuration tools. ST-YUKE CO., LIMITED can assist in validating these codes against your specific P&ID and functional requirements.

Application Versatility

The 8Q5B Coriolis mass flowmeter excels in numerous challenging applications:

Custody Transfer

With optional ±0.05% accuracy and compliance with MI-005 and OIML R117 standards, the 8Q5B25, 8Q5B50, and 8Q5B80 models are ideally suited for fiscal measurement applications involving hydrocarbons, liquefied gases, and cryogenic liquids .

Gas-Liquid Two-Phase Flow

The MFT technology ensures stable measurement even when gas breakthroughs occur, making the 8Q5B series perfect for applications prone to cavitation or entrained gases.

Cryogenic Applications

With specialized options for temperatures down to –196°C, the 8Q5B Coriolis mass flowmeter handles LNG and other cryogenic fluids with exceptional precision .

Marine and Offshore

Comprehensive marine approvals (LR, DNV, ABS, BV, CCS) make the 8Q5B series suitable for demanding offshore and marine installations .

Why Choose ST-YUKE CO., LIMITED as Your Supplier?

Selecting the right instrumentation for two-phase flow and custody transfer applications requires deep technical knowledge and reliable sourcing. At ST-YUKE CO., LIMITED, we specialize in supplying high-precision instruments like the entire 8Q5B series. Whether you require the compact 8Q5B25 for lower flow rates or the high-capacity 8Q5B80 for main process lines, we ensure that every device meets stringent quality and certification standards.

Our team possesses extensive experience with Endress+Hauser instrumentation and can help you navigate complex order codes—such as the 8Q5B50-** variant for your specific needs. We provide:

Genuine Products: 100% original Endress+Hauser instrumentation with full warranty

Technical Expertise: Professional guidance on specification and configuration

Competitive Pricing: Direct sourcing ensuring cost-effective solutions

Reliable Logistics: Worldwide shipping via DHL, UPS, FEDEX, or TNT -2

After-Sales Support: Dedicated assistance throughout the product lifecycle