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Measurement of liquidsup to 180 °C.
Process cooling in an induction furnace.
Mechatronic flow sensorThe flow sensor works to the principle of spring-support-ed piston: the piston, located in the valve seat in thehousing, is lifted by the flowing medium against thespring resistance. The piston position is monitored via amagnetic-field sensor and is output as an analogue signal.The spring resistance forces the piston to return to itsoriginal position with decreasing flow. This ensures posi-tion-independent installation of the flow sensor preven-ting backflow.Due to the temperature decoupling of the transducerfrom the electronics, this sensor is especially suitable formedia in high temperature applications of up to 180 °C.The units are maintenance-free.
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For flow ranges of 0.3...25 l/min.
Analogue output signal 4...20 mA.
Simple and robust.
Fast response time ≤ 10ms.
Pressure ranges up to 15 bar.
Mechatronic flow sensor for hightemperatures.
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bus,identification
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fluid sensors and diagnostic
systems
position sensors
and objectrecognition
3e Str. SBT 12.qxd 15.03.2012 10:48 Uhr Seite 2
Common technical data
Operating voltage [V] 24 DC (-15 % / + 10 %)
Short-circuit protection •
Materials in contactwith the medium
stainless steel 304/1.4301;nickel-plated brass;
PPS;O-ring: FPM
Ambient temperature [°C] 0...60
Response time [s] < 0.01
Current consumption [mA] < 30
Reverse polarity / overload protection • / •
TypeSBT, SBM
Dimensions
3565
M12x1
M12x1
1376,5
13
Rp
43
Rp
43
L+
L
1
3
2
Wiring
SBT633
Processconnection
Mediumtemperature
[°C]
Accuracy
[% of the final value]
Pressureresistance
[bar]
Orderno.
Connection cable 0.3 m with M12 connector · analogue function mode 4...20 mA
Rp 3/4 20...180 ± 5 15 SBT633
Protection rating,protection class
IP 67, III
G 3/4 20...180
Measuring range
[l/min]
0.3...25
0.3...25 ± 5 15 SBM613*IP 67, III
Applications:Liquids (water, glycol solutions).
* Only measuring insert for OEM solutions, no replacement part.35
65
M12x1
M12x1
20
4070
47157
30
G 43
SBM613
43
2 1
Thermographicdiagramof an SBT typeflow sensor.
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Flow sensors
For further technical data please go to: www.ifm.com
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3e Str. SBT 12.qxd 15.03.2012 10:48 Uhr Seite 3
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