S418-V – Thermal Mass Flow Sensor for Vacuum Applications

In-line sensor for precise measurement of flow, consumption, and absolute pressure in industrial vacuum systems.

Thermal mass flow sensor specifically designed for vacuum applications.
Direct measurement of true volumetric flow rate in vacuum, without bypass methods.
No additional pressure or temperature compensation required, even under variable conditions.
Integrated absolute pressure sensor for precise vacuum system monitoring.
Internal data logger with large storage capacity for historical analysis.
Integrated flow conditioner eliminates the need for straight inlet or outlet pipe runs.
Wireless interface for configuration and adjustment via mobile app.
Available signal outputs: 4…20 mA, pulse, and Modbus RTU.
High measurement accuracy suitable for industrial vacuum applications.
Gas-type threaded connection (ISO 228-1) available in DN8, DN15, DN20, and DN25.

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Description

SUTO iTEC S418 V compact flow meter for vacuum applications inline sensor4 mins Airtec Global

Real-time monitoring of flow, consumption, and pressure in vacuum applications

The S418-V thermal mass flow sensor is designed to accurately measure true volumetric flow rate and absolute pressure on the low-pressure side of vacuum pumps, directly at the point of use. Its compact in-line design delivers reliable data even under variable pressure conditions, without the need for external compensation.

Thanks to its integrated pressure sensor and internal data logger, the S418-V enables detailed analysis of vacuum system behavior, detection of inefficiencies, and optimization of process energy consumption. Configuration and reading verification are fast and easy via its wireless interface, using the SUTO mobile service app.

Applications

Monitoring the performance of vacuum pumps on the low-pressure side.

Measurement of true volumetric flow rate in vacuum applications, directly at the point of use.

Continuous monitoring of flow, consumption, and absolute pressure in industrial vacuum systems.

Process optimization in packaging, vacuum handling, process chambers, and gripping systems.

Detection of inefficiencies, leaks, or abnormal conditions in vacuum networks.

Data logging and analysis for energy audits and predictive maintenance.

Integration into control and monitoring systems via analog output, Modbus RTU, or M-Bus.

Advantages

True vacuum flow measurement with integrated absolute pressure sensor.

Thermal mass flow technology with no external compensation required.

Easy installation with no straight pipe runs needed, thanks to the integrated flow conditioner.

Flow rate, consumption, and pressure measured in a single device.

High accuracy and stability under variable process conditions.

Integrated data logger for historical analysis and control.

Wireless configuration via free mobile app.

Versatile industrial outputs for easy integration into control systems.

Compact and robust design for direct installation at the point of use.

Cost optimization by detecting losses and inefficiencies in the vacuum system.

SUTO iTEC S418 V compact flow meter for vacuum applications inline sensor3 min Airtec Global

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Advanced vacuum system control and analysis

The S418-V features a high-capacity internal data logger capable of storing millions of measurement records directly in the device, eliminating the need for external equipment. This functionality allows long-term analysis of vacuum system behavior and supports data-driven decision-making.

The device includes an integrated LED display that clearly shows flow rate and pressure values, making on-site verification easy during installation, commissioning, and daily operation.

Thanks to its compatibility with analysis software, recorded data can be downloaded and visualized in graphical form to identify trends, process variations, or abnormal conditions that impact system efficiency.

In addition, the S418-V is designed to operate reliably in demanding industrial applications, featuring durable materials and a design intended for permanent installation in vacuum lines, ensuring long-term stability and measurement accuracy.