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As a dedicated supplier at Rossonix Co., Limited, we present the M+W Flow Meter D-6310 Gas Mass Flow Measurement Instrument — a solution designed for precise and reliable control of gas flow in demanding industrial settings. This instrument uses advanced thermal mass sensing technology to measure flow directly in mass units, eliminating the need for separate temperature and pressure compensation. With a robust structure, user-friendly configuration, and versatile installation options, the D-6310 supports your process efficiency, product quality, and operational safety.
The D-6310 is built for long service life in harsh environments. It has no moving parts, which minimizes wear and reduces maintenance requirements. Its smart electronics convert the thermal sensor signal into a clean, standardized output that can be easily integrated with PLC, DCS, or SCADA systems. Whether your application involves continuous monitoring, batch processing, or mass balance accounting, this flow meter provides the dependable data you need.
Key Features
Direct mass flow measurement — no additional pressure or temperature transmitters required.
High turndown ratio — accurately measures low and high flow rates in the same line.
No moving parts — less pressure drop, longer lifetime, and low maintenance.
Fast response time — helps track changing process conditions in near real time.
Multiple output options — analog 4-20 mA, pulse, and optional RS485 communication.
Wide power supply range — 24 VDC standard, other power options available on request.
Customizable process connections — NPT, flanged, or customer-specified fittings.
Optional local display — shows current flow rate and totalized consumption.
Technical Specifications
| Measuring principle | Thermal dispersion |
| Applicable media | Air, nitrogen, natural gas, and other compatible gases |
| Flow range | Customizable; typical ranges from 0-10 SLPM to 0-1000 SLPM |
| Accuracy | ±1.5% FS (typical, calibration-dependent) |
| Repeatability | ±0.5% FS |
| Response time | Within 1-3 seconds (typical) |
| Output signal | 4-20 mA DC, pulse; RS485 optional |
| Power supply | 24 VDC standard; 220 VAC or battery power available on request |
| Process connection | NPT thread, flange, or customized |
| Materials | Stainless steel 304 / 316 (or equivalent) |
| Pressure rating | Available for standard industrial pressures; consult us for high-pressure versions |
| Media temperature | -20 °C to +120 °C (typical) – confirm for special requirements |
| Enclosure rating | IP65 (optional IP67) |
| Display | Optional LCD with flow rate and totalizer |
All specifications shown are typical values for the standard sensor configuration. Actual performance may vary depending on process gas, installation conditions, and optional modifications. Complete technical datasheets and dimensional drawings are available from our engineering team on request.
Installation Flexibility and Integration
The D-6310 can be installed in horizontal or vertical pipes and is supplied with a transmitter and sensing probe. The design permits simple inline insertion through a ball valve, which enables hot-tap installation without process shutdown. This feature is particularly valuable in continuous production lines where downtime is unacceptable. The standard enclosure is rugged and sealed against dust and water, and the display can be positioned at any angle for better readability.
Why Customers Choose the D-6310
Improved process control – direct mass measurement means fewer errors from pressure and temperature swings.
Reduced operating cost – minimal pressure drop lowers energy consumption; low maintenance saves time and cost.
Long-term stability – durable thermal sensor with field-replaceable electronics.
Easy to configure – parameters can be set via the onboard keypad or remote communication port.
Wide applicability – suitable for clean and dry gases; special calibration is available for unusual gas compositions.
Typical Applications
Natural gas monitoring and energy management
Compressed air flow measurement
Nitrogen / inert gas consumption tracking
Gas blending and mixing processes
Leak detection and line surveillance
Furnace atmosphere control
Research and testing facilities
Quality Assurance and After-Sales Support
Rossonix Co., Limited operates under an ISO9001 quality management system, and every D-6310 flow meter is thoroughly checked before shipment. Our Shenzhen facility supports customers with calibration services, spare parts, and application guidance. For customers with special gas mixtures, we offer pre-calibration with traceable reference instruments to ensure accurate readings from day one. Our team of 11-50 professionals is committed to providing quick technical responses and practical solutions.
Shipping and Global Supply
With an annual export value of US$5 to 10 million and an overseas office, Rossonix is experienced in delivering instruments across the globe. We ship from Shenzhen, Hong Kong, and our European logistics point, making delivery efficient and flexible. Our main export markets include North America, Europe, Oceania, the Middle East, and Asia, and we are ready to support new projects with competitive pricing and responsive communication.
Frequently Asked Questions
Q1: What types of gas can the D-6310 measure?
A1: It is suitable for air, nitrogen, natural gas, and many other dry, non-corrosive gas streams. For specific gas mixtures or corrosive media, please contact us for compatibility assessment and calibration.
Q2: Is the flow meter installed with a specific orientation?
A2: The sensor is designed for installation in horizontal or vertical pipelines. It is recommended to install the probe in a location with sufficient straight upstream and downstream pipe length to ensure stable flow profile.
Q3: Can the output signal be connected to a PLC or DCS?
A3: Yes, standard 4-20 mA analog and pulse outputs are provided, and RS485 digital communication is available on request. These interfaces work with most common control systems.
Q4: What is the turndown ratio of the D-6310?
A4: The instrument offers a wide turndown ratio, typically up to 100:1 depending on the selected range, allowing it to handle both low and high flows accurately.
Q5: How often does the sensor need calibration?
A5: Calibration intervals depend on the gas composition and operating environment. Many customers perform recalibration every 1-2 years. We provide calibration services and re-zeroing instructions.
Q6: Can the flow range be customized?
A6: Yes, the D-6310 can be supplied with a flow range tailored to your maximum and normal operating conditions. Please provide your process data when requesting a quotation.
Q7: Does the meter come with a display?
A7: An optional LCD display with local totalization is available. If you prefer a blind transmitter with remote signal reading, that configuration is also supported.
Q8: What are the available process connection types?
A8: We offer NPT threading, flanged connections, and customer-specific fittings. The best option depends on pipe size, pressure rating, and installation method.
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