Dwyer TDFT Series Thermal Dispersion Flow Transmitter

Wiratama Mitra Abadi 01 02.14 flow measurement,

Dwyer TDFT Series Thermal Dispersion Flow Transmitter are sensors with an electrical contact output at a specific flow rate. Dwyer models provide a complete system for leak detection and feature a selectable NO or NC operation. Applications include chillers, hot water heaters, and liquid transfer systems. The Model TDFT Thermal Dispersion Flow Transmitter has continuous frequency output. It fits applications with pipe sizes from 1/2" to 2" (12.7 to 50 mm) and features 316L stainless steel housing for use in harsh environments.

Dwyer has invested in state-of-the-art research and development facilities for best-in-class product testing and verification. Dwyer has a long history of innovation in designing and manufacturing our own measurement sensors that provide superior product performance.

Flow includes Flow Transmitters, Flow Sensors, Flowmeters, Sight Flow Indicators, and Water Meters. Mass Flowmeters, Controllers, Flow Indicators, and Controllers are ideal for the measurement of flow rates. Flow Switches come as paddle, thermal, piezo, and shuttle/piston. Flow Switch Sensors with an electrical contact output at a specific flow rate have different types of switches, which are a paddle, thermal, piezo, and shuttle/piston.

Dwyer TDFT Series Features

Flow measurement in low flow applications
Continuous frequency signal from measured flow velocity
Low pressure drop
No moving parts

Application

Chiller systems
Boiler systems
Liquid transfer systems

Dwyer TDFT Series Specification

Service	Compatible water-based fluids.
Wetted Materials	316L SS.
Range	1-3 ft/s (0.05-0.7 m/s).
Repeatability	±10% at 68°F (20°C).
Temperature Limits	Ambient: -4 to 158°F (-20 to 70°C), Process: 14 to 140°F (-10 to 60°C), Storage: -40 to 158°F (-40 to 70°C).
Pressure Limit	362 psi (25 bar).
Response Time	1 to 10 seconds.
Power Requirements	24 VDC.
Current Consumption	<50 mA.
Electrical Rating	80 mA.
Output Frequency	5 to 74 Hz.
Electrical Connections	1 x M12.
Process Connection	½” NPT.
Enclosure Rating	IP67.
Housing Material	316L SS.
Mounting Orientations	Horizontal or vertical.
Weight	0.274 lb (124.5 g).
Agency Approvals	CE.