Smart Thermal Flowmeter Featuring 4-20mA Output and RS485 Communication

• Customization: Available
• Warranty: 15 Months
• Accuracy: 1.5%
• Model NO.: HL-RSL
• Main Application: Dry Gases (Except Acetylene),Corrosive Gas
• Size: DN10-DN2000
• Sensor: Tube/Flange
• Application: Industrial Production
• Type: Probe Type Flow Meter
• Measuring Media: Gas
• Measuring Principle: Thermodynamic
• Measurement Object: Closed Pipeline
• Certification: CE, ISO
• Material of Body: SUS304/SUS316L
• Output: 4-20mA,RS485
• Power Supply: 24VDC&220VAC
• Communication: RS485 Protocol
• Explosion-Proof Grade: Exdbiict6GB
• Specification: Stainless Steel
• Trademark: HuaLiu
• Origin: China
• HS Code: 9026801000
• Production Capacity: 50000pieces/Year

Product Description

Product Description

Smart Thermal Gas Mass Flowmeter

Thermal flowmeters shine as cutting-edge instruments engineered on the robust principle of thermal diffusion. Renowned for their expansive measurement range, they deftly handle on-site pipeline vibrations and boast minimal installation demands for straight pipe sections. This versatility and reliability make them a market favorite, flourishing across various sectors.

CHARACTERISTIC

1. Experience seamless installation and minimal maintenance with our bidirectional detection. Equipped to withstand vibrations up to 24 flow measurement points, it promises unparalleled performance.
2. Effortlessly achieve output analog calibration with our advanced multi-point non-linear curve correction, ensuring precision and reliability.
3. Enjoy an impressive wide-range ratio of 100:1, offering flexibility and adaptability for diverse applications.
4. Simultaneously detect flow and temperature with ease, and switch between displays for a comprehensive overview.
5. Master large-diameter, small-flow measurement with precision, perfect for detecting leaks and ensuring system integrity.
6. Harness the power of our exclusive 'double balance structure' encapsulated sensors, designed with proprietary technology for optimal performance.
7. Benefit from our proprietary algorithms tailored for high humidity and high temperature, enabling direct mass flow detection up to 300 ℃ without needing temperature and pressure compensation.

PRINCIPLE

Our thermal flowmeters are sophisticated devices based on the principle of heat diffusion. As fluids traverse a heated object, the dissipated heat correlates with the fluid's flow rate. Our sensors utilize dual standard-grade RTDs—one as a heat source, the other for fluid temperature measurement. The resulting temperature differential aligns linearly with the flow rate, converted with microelectronic control into a precise flow measurement signal.

TECHNICAL PARAMETER

performance)	Technical Parameters
Measurable Flow Rate Range	0.5~120Nm/s
Applicable pipe diameter range	DN10-DN2000
Applicable flow range	0-770000Nm3/h (DN2000atmosphere)
Applicable pressure range	<2Mpa <10Mpa
Applicable medium	Applicable materials: All gases except ethylene cooking gas. Dusty, sandy, and corrosive gases.
Sensor Diameter	φ18
Sensor Materials	1Cr18chin9Ti, Hastelloy, Chin, 316L, Aluminum, 304 Stainless Steel
Probe material (protection tube)	1Cr18Ni9Ti, 304 stainless steel, 316L
Transmitter housing material	die-cast aluminum
Instrument power supply	AC220VAC110VDC18-32V
exports	Output 4-wire 4-20mA, RS232, RS485, HART
on-site display	16 characters x 4 lines
Display Type	Split or integrated structures
Structure type	Plug-in and Pipeline
protection class	IP65

Company Profile

Jiangsu Hualiu Instrument Co., Ltd.

Jiangsu Hualiu Instrument Co., Ltd. exemplifies excellence in the industrial automation instrument realm. Since 2012, our reputable company has embraced exceptional standards in production, research, and sales. Guided by our 'quality first, customer first' ethos, we've accrued more than ten years of expertise in crafting outstanding instruments.
We specialize in a comprehensive suite of instruments, encompassing flow, pressure, temperature, and liquid level measurements. Our innovative edge is driven by a dedicated scientific and technological team, supported by cutting-edge production and calibration equipment, ensuring precision and dependability in every instrument we produce.
With a remarkable annual output exceeding 20,000 units, we supply essential product sets for modern industrial processes. Our offerings cater to a broad spectrum of applications, meeting both market demands and the precise needs of our extensive clientele.
Our products are celebrated nationwide and geared for international acclaim, with the capability for bulk export. They serve a multitude of industries, including petroleum, electricity, chemical, metallurgy, environmental protection, papermaking, and food processing.

After Sales Service

Warranty period: 15 months from the date of arrival
During the warranty period: Our team stands ready to address any quality issues with our products, providing swift service within 8 hours for technical guidance. Should further assistance be required, we will promptly visit your site to perform repairs or parts replacement. If quality issues are not supplier-related, paid services can be arranged through mutual agreement.
After the warranty period expires: We remain committed to offering complimentary technical consultations and a suite of corresponding paid services.

FAQ

Q: How do I select the right flow meter for my application?
A: Consider these pivotal factors:
The type of fluid: liquid, gas, or steam.
The range of flow rate required.
Pipe size and the material it is constructed from.
Temperature and pressure conditions within the system.
The degree of accuracy needed, whether ±0.5% or ±1%.

Q: Where can I find installation guidelines?
A: Simply download our comprehensive PDF manual or reach out to us for personalized assistance.

Q: What is the maximum pressure for your flow meters?
A: Our standard models are engineered to withstand pressures of up to 16 bar (232 psi), while the robust high-pressure editions can manage an impressive 100 bar (1450 psi), catering to more demanding environments.

Q: Are your flow meters CE and ISO9001 certified?
A: Absolutely, our flow meters are meticulously crafted to comply with the stringent regulations and rigorous standards of the European Union (EU), ensuring they meet the EU's comprehensive directives for safety, health, and environmental protection. Our management system is both scientific and standardized, guaranteeing internationally recognized quality and safety.

Q: What documents do you provide for export?
A: We provide an extensive export documentation package, which includes a Commercial Invoice, Packing List, Bill of Lading, and Certificate of Conformity (COC), among others, facilitating seamless and efficient international transactions.

Q: How do I place an order?
A: Reach out to us via email or phone for a detailed quote, then solidify your order with a purchase order (PO).