Flow sensors - Consumption measurement for compressed air

SL870020

SL870020
List price
2.320,00 €
On demand
sensor flow, Air, Calorimetric, G1/2 inch, 18-36V DC, 4-20mA, Plug-in connection M12 5pin, Plastic PC, With display, Parameterization, RS-485
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Flow sensors - Consumption measurement for compressed air

The function of the flow sensor is based on the calorimetric principle. The probe is heated up from the inside a few degrees Celsius in relation to the flow medium, in which it protrudes. When the medium flows, the heat generated in the probe is dissipated through the medium. The temperature within the sensor is measured and compared with the likewise measured medium temperature. From the obtained temperature difference the flow state of each medium can be derived. These sensors are applied in areas such as monitoring of cooling systems, ventilation systems, pump dry running by checking the presence of liquid or gas flows.

Electrical properties

Type of analog output
4 - 20mA
Type of electrical connection
Connector M12
Type of interface connection
Plug-in connection M12
Rated switching current
150mA
Setting procedure
Parameterization
Coding of interface connection
A-coded
Short-circuit protection
Yes
No-load current
140mA
Number of pins
5
Switching voltage
48V
Reverse polarity protection
Yes
Measurement principle
calorimetric
Supported communication interface
RS485
Operating voltage (DC)
18 - 36V
Display
LED display

Mechanical properties

Type of process connection
G1/2 inch
Design
Cuboid
Pressure resistance
50bar
Length
220mm
Probe length
220mm
Medium temperature
-30 - 110°C
Degree of protection (IP)
IP65
Housing material
Plastic PC
Sensing element material
Stainless steel 1.4301
Measuring range flow velocity
0.18 - 92.7m/s

Other properties

Ambient temperature
-20 - 70°C
Suitable media
Air
Measuring accuracy
± 1.5 % of measuring range ± 0.3 % of measuring range end
Important note
For pressure > 10 bar - order high-pressure safety device additionally
Reference medium / object
Air
For pneumatic applications
Yes
Suitable for liquids
No
Version
Insertion sensor
You can find accessories for SL870020 in these product groups:

Cable sockets M12 5-wire shielded

High pressure protection

Cable sockets M12 5-pin field attachable

Classification Class
eClass-7.0 27371815
eClass-7.1 27371815
eClass-8.0 27371815
eClass-9.0 27371815
eClass-9.1 27371815
ETIM-6.0 EC002580
ETIM-7.0 EC002580
Property Value
RoHS‑compliant Yes
Reach-compliant Yes
IPF Product Group 725 compressed air and leakage measurement
packaging dimensions 170 x 90 x 470mm
gross weight 1,113g
Customs tariff number 90268020
WEEE number 40951076
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