HRLS 4-20MA Thermal gas mass flowmeter compressed air oxygen nitrogen flowmeter ss304 316 flange modbus HART RS485 flowmeter

Product Description

Specification

item	value
Warranty	1 Year
Customized support	OEM, ODM, OBM, Software reengineering
Place of Origin	China
	Henan
Model Number	HRLS
Type	Variable Area Air & Gas Flowmeters, Other
Material	stainless steel
Medium	Gases
Accuracy	1.5%
Material	Stainless Steel
Output	4-20mA
Protection Class	IP 65
Connection	Flange

Packing & Delivery

To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided

Company Profile

Kaifeng Kamboda Industrial Instrument Co., Ltd. is a high-tech enterprise commit into research and development, manufacture of flow instruments. Located at the base of China flow instrument, Kaifeng, we have full access to gain the most advanced technology in field. All these make us full of confidence to provide products with international standard

At present, we are mainly dealing in electromagnetic flow meters, vortex flow meters, turbine flow meters, orifice plate flow meters, metal tube rotor meters, ultrasonic flow meters. We are Original Equipment Manufacturer of flow meters with well-equipped testing facilities and strong technical force

With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in water supply and drainage, chemical, power supply, metallurgical mine, oil and other industries

Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs

Welcome new and old customers from all walks of life to contact us for future business relationships and mutual success

FAQ

1. who are we
We are based in Henan  China, China, start from 2017, sell to Domestic Market(60.00%), Western Europe(10.00%), Southeast Asia(10.00%), Mid East(6.00%), South Asia(5.00%), South America(5.00%), Eastern Asia(4.00%), North America(0.00%), Oceania(0.00%), Southern Europe(0.00%), Central America(0.00%), Northern Europe(0.00%), Africa(0.00%), Eastern Europe(0.00%). There are total about 11-50 people in our office

2. how can we guarantee quality
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3. what can you buy from us
Electromagnetic Flowmeter, Steam Flowmeter, Gas Turbine Flowmeter, Ultrasonic Flowmeter, Liquid Turbine Flowmeter

4. why should you buy from us not from other suppliers
We have been in this business for more than 20 years Our customer satisfaction is 99.5% We are able to provide electromagnetic flow meters with international standards Located in Kaifeng, the biggest base of flow instruments in China

5. what services can we provide
Accepted Delivery Terms: FOB, CFR, CIF, EXW, Express Delivery；
Accepted Payment Currency: USD, CNY;
Accepted Payment Type: T/T, L/C, Escrow;
Language Spoken: English, Chinese

KAMBODA’s HRLS 4-20mA Thermal Gas Mass Flowmeter is a reliable and accurate instrument designed for measuring the mass flow of gases such as compressed air, oxygen, and nitrogen. It combines durable stainless steel construction with advanced thermal dispersion technology to deliver stable readings and long-term performance. The device suits industrial environments where precise gas flow measurement is essential for process control, safety, and efficiency.

Built with SS304 or SS316 flange options, this flowmeter offers strong corrosion resistance and robust mechanical strength. The flange connections make installation simple and secure in standard piping systems. The housing is designed to withstand harsh conditions while protecting the internal sensors and electronics. With its compact footprint, the unit fits easily into existing setups without requiring major system modifications.

The sensor uses thermal mass flow measurement, which directly measures the mass flow rate rather than volumetric flow. This method eliminates the need for temperature and pressure compensation in many applications, providing quicker and more reliable data. It is particularly effective for clean gases like compressed air, oxygen, and nitrogen. The measurement range covers low to medium flows and works well for both monitoring and control tasks.

KAMBODA configured the HRLS flowmeter to support multiple output and communication options. The standard 4-20mA analog output provides a simple and widely used interface for transmitting flow measurements to controllers, recorders, or remote displays. For digital communication, the device supports Modbus RTU over RS485 and HART protocol, allowing integration into modern control systems and enabling remote configuration, diagnostics, and data retrieval. These communication choices make the flowmeter versatile for both new installations and retrofits.

Calibration and setup are straightforward. Users can calibrate the device for specific gases and set parameters to match application requirements. The thermal sensors respond quickly to changes, ensuring timely feedback for process adjustments. Accuracy and repeatability are strong points, making the KAMBODA HRLS suitable for applications where consistent measurement is critical. Maintenance needs are minimal due to the non-intrusive sensor design and robust construction.

Safety and compliance are considered in the design. The materials and flanges meet common industrial standards, and the electronics are protected against common electrical disturbances. The flowmeter includes features to detect flow anomalies and can be integrated into safety systems to trigger alarms or shutoffs if necessary. This makes it useful in environments where gas leaks or flow deviations could pose risks.

Installation is user friendly. The flange-mounted design allows technicians to install the flowmeter quickly with standard tools. Clear wiring diagrams and communication setup instructions support integration with PLCs, DCS, or building management systems. The compact design reduces space requirements, and the durable housing minimizes the need for frequent inspections.

For service and support, KAMBODA offers documentation and technical assistance to help with selection, installation, and troubleshooting. Spare parts and replacement sensors are available to extend the operational life of the flowmeter. Users can rely on responsive support for configuring Modbus registers, HART parameters, or analog scaling.

Key features include:

- Thermal mass flow sensing for direct mass flow measurement.

- Model options with SS304 or SS316 flanges for corrosion resistance.

- Suitable for compressed air, oxygen, nitrogen, and other clean gases.

- 4-20mA analog output for simple integration.

- Modbus RTU over RS485 for digital communication.

- HART protocol support for advanced diagnostics and configuration.

- Fast response time and high repeatability.

- Robust construction for industrial environments.

- Easy flange mounting and straightforward wiring.

Typical applications span manufacturing, pneumatic systems, medical gas supply monitoring, laboratory gas distribution, and process control. In manufacturing, the meter helps optimize compressed air usage and reduce energy costs. In medical and laboratory settings, it provides dependable monitoring of oxygen and nitrogen flow. Process industries benefit from accurate flow data for controlling mixers, reactors, and gas-fed processes.

The KAMBODA HRLS 4-20mA Thermal Gas Mass Flowmeter offers a balance of simplicity and advanced features. It is ideal for professionals who need dependable flow measurement with options for modern digital communication. Whether retrofitting an existing system or designing a new installation, this flowmeter provides a practical solution that combines durability, accuracy, and ease of integration.

Choose the KAMBODA HRLS flowmeter when you need a solid, industrial-grade instrument that handles common gases, supports widely used communication standards, and delivers reliable performance over time. Its mix of analog and digital outputs, robust materials, and thermal sensing technology make it a versatile choice for many gas flow measurement needs.