Dwyer TDFS2-1-P-06 Series TDFS2 Thermal Dispersion Flow Switch

The Series TDFS2 Thermal Dispersion Flow Switch is a thermal flow switch that indicates whether the flow rate is above or below a user set flow rate. The unit incorporates two LED status indicators providing visual switch indication. The set flow rate (setpoint) is field adjustable and the unit has both NO and NC NPN outputs.

Features:

• Better reliability and life expectancy than mechanical flow switches with no paddles or vanes to wear or break, no jams in the paddle movement, and no seals on movement assembly to wear or leak
• Not affected by empty pipe as it avoids overheating by actively heating above the process temperature and then cooling down to process temperature
• Set point is easily field set by tapping the included magnet on the set point target three times at the desired flow rate
• LED status indicators provide visual switch indication of flow rate in comparison to the set point
• Low pressure drop; only needs to be inserted 10% into the flow (e.g. 1/8" for 3/4" schedule 40 pipe)

Product Applications:

• Boiler flow proving
• Hot water heaters
• Chillers
• Liquid transfer systems