flow sensors - sensors for air

SL890020

SL890020
List price
795,00 €
Not in stock
sensor flow, Air, Calorimetric, 175x75x194mm, R1/4 inch, 12-36V DC, 1x Relay contact NO (NO), 4-20mA, Plug-in connection M12 5pin, Plastic PC, Pressure resistance 16bar, With display, Parameterization, RS-485

flow sensors

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.

Mechanical features

Width
194mm
Depth
75mm
Pressure resistance
16bar
Type of process connection
R1/4 inch
Degree of protection (IP) of evaluation electronics
IP65
Ambient temperature for evaluation electronics
-20 - 70°C
Sensing element material
Stainless steel 1.4301
Measuring range of flow volume with air
0.8 - 90l/min
Height
174.7mm
Design
Cuboid
Housing material
Plastic PC
Medium temperature
-30 - 80°C
Degree of protection (IP) of measuring head
IP65
Temperature medium
-30 - 80°C
Measuring range of flow velocity with air
0.18 - 92.7m/s

Electrical features

Voltage type
DC
Number of switching outputs
1
Type of analog output
4 mA ... 20 mA
Type of switching output
Relay contact
Rated control supply voltage Us at DC
12 - 36V
Setting procedure
Parameterization
Rated switching current
150mA
Type of interface
RS-485
Short-circuit protection
yes
Measuring principle of flow
Calorimetric
Number of pins
5
Switching voltage
48V
Type of electrical connection
Plug-in connection M12
Type of switching function
Normally open contact (NO)
Operating voltage
12 - 36V
No-load current
120mA
Number of switching points
2
Pressure resistance of measuring head
16bar
Reverse polarity protection
yes
Flow measurement
yes

Other features

Reference medium
Air
ClassificationClass
eClass 7.027371815
eClass 7.127371815
eClass 8.027371815
eClass 9.027371815
eClass 9.127371815
ETIM-6.0EC002580
ETIM-7.0EC002580
IPF Product Group725
PropertyValue
packaging dimensions0.0mm x 0.0mm x 0.0mm
customs tariff number90268020
no