Product Overview

The NOIKE-AH Ultrasonic Flowmeter  NG800 is a non-contact ultrasonic flow measurement solution designed for a wide range of liquid flow monitoring applications. Manufactured with patented technologies, the NG800 integrates advanced semiconductor components from leading manufacturers including Philips, Maxim, TI, and Xilinx, providing improved performance, stability, and reliability.

The flowmeter features a patented balanced low-voltage multi-pulse excitation circuit, which significantly enhances anti-interference capability. This allows the instrument to operate reliably even in demanding industrial environments where variable frequency drives (VFDs) or other electrical equipment are present.

Because both the flowmeter and transducers are externally mounted with no moving parts, measurement is not affected by system pressure, pipe wear, or fouling.

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Why Choose the Ultrasonic Flowmeter NG800 ?

The NG800 is designed for applications requiring reliable, non-invasive flow measurement without interrupting pipeline operation.

Key advantages include:

• Non-contact ultrasonic measurement with no moving parts
• Suitable for large pipe sizes from DN32 to DN6000
• Excellent anti-interference performance using patented excitation technology
• No pressure loss during measurement
• Suitable for installation without cutting the pipeline
• Multiple output and communication options for industrial automation
• Supports long-term flow data recording
• Suitable for water, wastewater, chemicals, oils, and other liquid media

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Working Principle

The NG800 measures liquid flow using ultrasonic technology.

Ultrasonic transducers are installed externally on the pipeline to transmit and receive ultrasonic signals through the pipe wall. The flow rate is calculated based on the propagation characteristics of the ultrasonic signals in the flowing liquid.

Since the transducers do not contact the measured medium and the system contains no moving mechanical parts, the measurement is not affected by pipeline pressure, scaling, or mechanical wear.

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Product Features

Patented Ultrasonic Technology

• Manufactured using patented technologies
• Enhanced measurement performance
• Improved operational reliability

Strong Anti-Interference Performance

The patented balanced low-voltage multi-pulse excitation circuit improves resistance to electrical interference, making the flowmeter suitable for industrial environments with nearby variable frequency drives and other electrical equipment.

Non-Contact Measurement

• External clamp-on installation
• No moving parts
• No pressure loss
• No contact with the measured liquid

Wide Pipe Size Range

Supports pipe diameters from:

• DN32 to DN6000

Flexible Output Signals

Available outputs include:

• 0–10 mA
• 4–20 mA
• Pulse Output
• MODBUS
• HART

Long-Term Data Recording

Supports built-in recording functions with storage options of:

• 48 days
• 6 months
• 5 years

(depending on configuration)

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Product Applications

The Ultrasonic Flowmeter NG800 is suitable for flow measurement in:

• Water supply systems
• Industrial wastewater
• Seawater
• Acid and alkali liquids
• Various oils
• Feed water systems
• Drainage systems
• Water resource monitoring
• Petrochemical plants
• Food and beverage industry
• Pharmaceutical industry
• Power plants
• Metallurgical plants
• Mining industry
• Marine operation and maintenance
• Water-saving monitoring and management
• Pulp and paper industry
• Leak detection
• Heating systems
• Pumps
• Boilers
• Cooling towers
• Flow and thermal management systems
• Industrial inspection and flow data collection

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Basic parameters

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Typical Industrial Applications

The NG800 is widely used in industrial flow monitoring where non-invasive measurement is preferred, including:

• Industrial process monitoring
• Water treatment systems
• HVAC and heating networks
• Energy management
• Cooling water systems
• Chemical processing
• Marine engineering
• Municipal water management
• Industrial maintenance
• Flow monitoring and network management

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Specificate of Ultrasonic flowmeter NG800 

Order information: Pipe size: DN15~700mm, Output: 4-20mA

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Dimension

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Frequently Asked Questions (FAQ)

Does the NG800 require pipe cutting during installation?

No. The ultrasonic transducers are externally mounted, allowing non-contact measurement without cutting the pipeline.

Can it measure corrosive liquids?

Yes. Since the transducers do not contact the liquid, the flowmeter can be used for various liquids including acids, alkalis, seawater, and oils, provided ultrasonic measurement conditions are suitable.

Is the flowmeter affected by pressure or pipe fouling?

No. According to the product design, measurement is not affected by system pressure, fouling, or mechanical wear.

What communication interfaces are available?

The NG800 supports Pulse, 4–20 mA, 0–10 mA, MODBUS, and HART outputs, depending on the selected configuration.