Inline Thermal Mass Flow Sensor WAFS 105

WAFS 105 – Thermal Mass Flow Sensor Catalogue 2020

An inline flow sensor is designed to measure gas flow directly through a defined pipe bore, making it suitable for accurate monitoring on smaller industrial lines. The WiseAir WAFS 105 is an inline thermal mass flow sensor available for pipe sizes from DN15 to DN80.

It measures standard flow, mass flow, consumption and temperature, with no moving parts for reliable long-term operation. The inline design is particularly useful for branch lines, machine feeds and departmental sub-metering where consistent flow conditions and a compact installation are important.

• Standard RS485 Modbus RTU Interface and 4-20mA current / pulse Output
• Insertion Type WAFS – 104:

Suitable for DN20 to DN1000, can be Installed Online through 1/2″ Ball Valve under Pressure

• Inline Type WAFS – 105:

Pipe Size : DN15, DN20, DN32, DN40, DN50, DN65, DN80

Connection : R Thread, Flange EN1092-1 , ANSI/B16.5

Measures Standard Flow, Mass Flow, Consumption and Temperature

• No Moving Parts, Stable Signal, Vibration Proof, High Reliability, Long-Term Measurement Accuracy
• Full Digital Signal Processing instead of Traditional Analog Bridge Design, making the Flow Meter more Accurate and Capable of Wider Measuring Range
• CE marked in accordance with applicable EU Directives.
  Declaration of Conformity available upon request.

What Makes the WAFS 105 Suitable for Inline Flow Measurement?

The WAFS 105 is designed as an inline flow sensor for applications where the flow meter becomes part of the pipework and provides a defined flow path through the measuring element. It is available in pipe sizes from DN15 to DN80 with R thread, EN1092-1 flange and ANSI B16.5 flange connection options. This makes the sensor suitable for branch lines, machine feeds and departmental sub-metering applications.

The inline design provides a stable measurement arrangement without moving parts, while digital signal processing supports a stable signal, high reliability and long-term measurement accuracy. For plants looking for an inline compressed air flow meter, the WAFS 105 provides a practical solution for monitoring flow, consumption and temperature at selected points within the compressed air distribution system.

Why Choose an Inline Flow Sensor for Small Industrial Lines?

An inline flow sensor is well suited to small industrial lines where a defined internal bore can provide a consistent flow path through the measuring element. The WAFS 105 is available for pipe sizes from DN15 to DN80, making it suitable for branch lines, machine feeds and departmental sub-metering. Unlike an insertion arrangement, the inline design forms part of the pipework and provides a defined measurement section for the gas flow.

For compressed air applications, an inline compressed air flow meter can be a practical choice when the line can be isolated during installation. The WAFS 105 has no moving parts and uses digital signal processing to provide a stable signal, high reliability and long-term measurement accuracy. This makes it suitable for monitoring compressed air distribution and individual points of use.

What Outputs and Measurements Does the WAFS 105 Provide?

The WAFS 105 measures standard flow, mass flow, cumulative consumption and temperature, giving users the information needed to monitor gas usage at the point of measurement. As an inline air flow meter, it can provide flow data for individual machines, branch lines and other monitoring points within an industrial gas or compressed air system.

For integration with plant monitoring systems, the WAFS 105 supports a standard RS485 Modbus RTU interface along with isolated 4–20 mA current and pulse outputs. These communication options allow the measured data to be connected to suitable control, monitoring or energy-management systems depending on the plant’s requirements.

Model Selector (WAFS 105)

Use this selector to generate the correct ordering code based on pipe size and options.