Dinel TFS-35 Thermal Mass Flow Sensor

Dinel TFS-35 Thermal Flow Sensor is a compact measuring device intended for industrial use for flow rate sensing of liquid media and for monitoring of their temperature when installed in a pipe. The sensor may be installed in plastic or metal pipes. Suitable for monitoring filling, cooling, or lubricating media and their temperatures.

Dinel TFS-35 Thermal Mass Flow Sensor

The flow rate is indicated by means of a bar graph (5 green LEDs). Output (flow rate and temperature) switching indicator by means of LED (orange and yellow). Simple configuration using a magnetic pen. The sensor is made in stainless steel design. Quick and simple installation thanks to simple construction.

Dinel TFS-35 Thermal Flow Sensor Features

• These sensors are intended for installation in pipes, in which the actual flow rate and temperature occurs
• Flow rate measurement is shown in a bar graph by five green LED diodes and in the same graduation it is possible to select the limit for output switching (unswitching)
• Optical indication of the flow rate and temperature status via two LEDs
• Can be selected either 1x current output 4..20 mA and 1x limit PNP output, or 2x limit PNP output
• Settings provided by magnetic pen
• Stainless steel case

Dinel TFS-35 Thermal Flow Sensor Specifications

Working area (EN 60079-10-1)	no explosive hazard area
Supply voltage	12 ... 34 V DC
Current consumption	TFS-35N-_-_-PFPT-_	60mA for supply voltage U = 24V DC
		70mA for supply voltage U = 18V DC
		80mA for supply voltage U = 15V DC
		100mA for supply voltage U = 12V DC
	TFS-35N-_-_-IFPT-_	60mA for supply voltage U = 24V DC + current loop
	TFS-35N-_-_-IFPF-_	70mA for supply voltage U = 18V DC + current loop
		80mA for supply voltage U = 15V DC + current loop 100mA for supply
		voltage U = 12V DC +current loop
Output	TFS-35N-_-_-PFPT-_	2 x transistor PNP with open collector
		(Switching current - max. 300 mA,
		Residual voltage-ON state - max.1,5V)
	TFS-35N-_-_-IFPT-_	1 x transistor PNP with open collector
	TFS-35N-_-_-IFPF-_	(Switching current - max. 300 mA,
		Residual voltage-ON state - max.1,5V)
		1 x active current output 4 .. 20 mA.
Maximal resistance of current output load	800 Ω for supply voltage U = 24V DC
	500 Ω for supply voltage U = 18V DC
	200 Ω for supply voltage U = 12V DC
Indication of incorrect settings	3,75 mA at current output + indication of bargraph
Maximum switching current	300 mA
Maximum residual voltage in ON state	1,5 V
Temperature output - switching points	15 °C; 30 °C; 45 °C; 60 °C; 75 °C
Flow rate range	1 to 150 cm/s (for water)
Temperature gradient	< 250 K/min
Isolating capacity (housing - inputs) / electrical strength	4 nF / 350 V AC
Protection IP67 (variant C)	IP68 (variant A, B, V, H)
Ambient working temperature range (ta)	-20 ... +80°C
Cable PVC	4x 0,5 mm2
Heat up time after start	10s
Response time	2 to 15s *1)
Pressure strength	10 MPa ( 100 bar ) over full temperature range
Weight of sensor (without cable)	150 g

Download Catalog: Thermal flow sensor TFS – 35, Dinel-Flowmeter

Ref: Dinel.cz