Thermal Flow Sensor TFS-35, Dinel-Flowmeter

 

Thermal Flow Sensor TFS-35, Dinel-Flowmeter

Thermal flow sensor - TFS–35 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.

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.

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

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Specifications

Working area (EN 60079-10-1)no explosive hazard area 
Supply voltage12 ... 34 V DC 
Current consumptionTFS-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
OutputTFS-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 load800 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 settings3,75 mA at current output + indication of bargraph
Maximum switching current300 mA
Maximum residual voltage in ON state1,5 V
Temperature output - switching points15 °C; 30 °C; 45 °C; 60 °C; 75 °C
Flow rate range1 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 PVC4x 0,5 mm2
Heat up time after start10s
Response time 2 to 15s *1)
Pressure strength10 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

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