Operation Manual

2. Application
2. Application
The S401 is a flow sensor which is designed to measure the
consumption of compressed air and gases within the permissible
operating parameters. These parameters can be found in the technical
data section.
The S401 can measure the following values:
• Volumetric flow of the compressed air or gas.
• Total consumption of the compressed air or gas.
The default factory settings are: Volumetric flow in m
3
/h and Total
Consumption in m
3
. Other units can be programmed by the optional
display or the service kit.
The S401 flow sensor is mainly used in compressed air systems in
industrial environments.
The S401 flow sensor is not developed to be used in explosive areas.
For the use in explosive areas please contact the manufacturer.
3. Features
• Insertion type flow sensor for easy installations under pressure
through a ball valve.
• Thermal mass flow measurement, virtually independent of
pressure and temperature changes.
• IP65 casing provides robust protection in the industrial
environment.
• Very fast response time.
• High accuracy and wide measuring ranges. Special ranges on
request.
• Tube diameters from 1/2” up to 12”, larger diameters on request.
• Optional display directly on the sensor, showing volumetric flow
and consumption.
• Modbus interface (optional).
S401 7