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Vortex flow sensor 237
Type 237 flow sensors operate according to the vortex principle, which is based on the Kármán vortex street. This non-mechanical measuring method enables precise and wear-free flow measurement without recalibration.
The robust Stainless steel construction ensures high long-term stability and reliability, even in demanding environments. The sensor is designed for Medium temperatures from -15 to +125 °C and is suitable for applications ranging from cryogenic cooling to high temperature processes, such as in injection moulding plants. Integration into existing systems is greatly simplified by the M12x1 connector with IP65 and the plug-and-play design.
The type 237 was developed for OEM applications that require precise, maintenance-free and long-term stable flow measurement.
- Measuring element without media contact for maximum resistance
- Optional temperature measurement of the medium
- Low pressure loss with high measurement accuracy
- Dirt-resistant design of the measuring element
- Various output signal options
- Electrical connection M12x1 with IP65
Vortex flow sensor 237
Product feature
Flow measurement principle
Vortex flow rate
Measuring range flow rate Overview
1,1 ... 240 l/min
Nominal width
8; 10; 15; 20; 25; 32
Accuracy < 50 % measuring range end value Water
<1 %FS
Accuracy > 50 % measuring range end value Water
<2 % (Measured value)
Switch-on delay
<100 ms (Immediate response time; can be used for tapping operation)
Response time
5 ... 500 ms
Repeatability
±0,5%
Sensor type
Flow sensor, optionally with temperature measurement
Measuring range flow rate
1,1 ... 240 l/min
Temperature measuring range
-40 ... 125 °C
Temperature measuring principle
PT1000 (Class B DIN EN 60751)
Field of application
Media
Heating water with standard additives; Drinking water; Other media on request
Medium temperature
-15 ... 125 °C (Non-freezing media)
Maximum test pressure at 40 °C media temperature
18 bar
Cavitation
>5,5 (Equation for avoiding cavitation: P abs outlet / P difference)
Maximum system pressure media temperature up to 90 °C
7 bar
Maximum pressure impact resistance at 90 °C media temperature
on request
Recommended minimum system pressure
1 bar
Ambient condition
Ambient temperature
-15 ... 85 °C
Storage temperature
-30 ... 85 °C
Material
Sensor paddle with media contact
ETFE
Housing with media contact
Stainless steel
Sealing material with media contact
FKM; EPDM (perox.)
Electrical data
Electrical connection
M12x1 connector
IP protection class
IP 65
Temperature output
PT1000
Inverse-polarity protection
Short-circuit and reverse polarity protected. Each connection against each other with max. supply voltage.
Approval
EMC compatibility
CE-compliant in accordance with EN 61326-2-3
Temperature measurement
Influence Self-heating temperature sensor
1 K/mW
Influence Conduction resistance to connector
0,8 Ohm
Vortex flow sensor 237
Vortex flow sensor 237
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EN-GB
Data Sheet 237
Data Sheet
PDF
Vortex flow sensor 237
Order number
Accessories
114563
Angled cable socket
for M12x1 connector; With cable; (with temperature output); 200 cm; 5-pole
114564
Straight cable socket
for M12x1 connector with cable; (with temperature output); 200 cm; 5-pole
114604
Angled cable socket
for M12x1 connector; With cable; 200 cm; 3-pole
114605
Straight cable socket
for M12x1 connector with cable; 200 cm; 3-pole
115024
Straight cable socket
for M12x1 connector with screw terminals; 5-pole