Thermal Air Flow Switch

Fci flow switches feature thermal dispersion technology in which the temperature difference is greatest in a no flow condition and decreases as flow increases cooling the heated rtd.

Thermal air flow switch.

Dwyer models provide a complete system for leak detection and feature a selectable no or nc operation. A set point is established so when that specific temperature difference is reached the relay changes state. Dwyer flow switches are economical and reliable. As the flow rate increases the temperature difference between the sensors decreases.

Thermal flow switches are sensors with an electrical contact output at a specific flow rate. The thermal switches are based on convective heat transfer. Media examples include nitrogen and scrubber exhaust fumes. Changes in flow velocity directly affect the extent to which heat dissipates and in turn the magnitude of the temperature difference between the rtds.

The sensor consists of a pair of matched resistance temperature detectors rtds encased in twin 316 series stainless steel tubes. Thermal dispersion flow switches for use with gases fst320 series. The 1a relay provides a reliable switch interface with remote devices such as a plc scada or alarm. Flow flow switches thermal.

Ifm s product range of flow sensors offer different measuring principles materials and displays to meet the requirements of different industrial manufacturing plant operations across the united states. Applications include chillers hot water heaters and liquid transfer systems. These switches or sensors can be used to monitor flow over a given period of time or set up to continuously monitor total flow. Commonly manufacturing facilities rely on flow sensors to.

The model t21 point flow switch uses a thermal differential technique to measure liquid or gas flow level or interface by sensing changes in the thermal heat transfer characteristics of the media where it is located. The general purpose gas flow switch is a great choice for a broad range of relatively clean gases with non coating characteristics. Thermal air flow switches type sl. Thermo flotm thermal dispersion air flow switch.

A flow switch sometimes referred to as a flow sensor or flow indicator is a device used to monitor the flow rate and pressure of liquids air or other gaseous media through a duct system or loop. The fst 320 series thermal dispersion flow switches especially designed for use with gases sense changes in the heat transfer characteristics of the gases. Paddle flow switches or vane sensors with an electrical contact output are at a specific flow rate.