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SN53B series intelligent vortex flow temperature sensor based on Carmen vortex principle, Carmen vortex is a Hungarian-American scientists von Carmen in 1911 observed and studied the phenomenon: when the fluid around a non-fluid linear object, the object tail flow on both sides of the left and right side of the production of pairs of alternately arranged, rotating in the opposite direction of the opposition to the so-called vortex. This vortex generation has a cycle, alternating changes in the nature of the frequency of change is proportional to the speed of the fluid, which is the Kamen vortex phenomenon, the specific relationship for the relationship Sr = fd / V. Vortex flowmeter is the use of this phenomenon is the nature of the vortex flow meter through the measurement of the frequency of vortex shedding to determine the speed of the fluid or the flow rate of the support of the support of the flowmeter. Has the advantages of small size, easy to set up, etc., built-in intelligent circuit, can be set arbitrarily flow upper and lower limits of the alarm value, can be remotely monitored real-time flow conditions, the full range of parameters on-site arbitrary settings.
Another high-precision sensor for temperature measurement, the signal is processed by the rear processing circuit and converted into a standard industrial electrical signal output and display, can be arbitrarily set the upper and lower limits of the temperature alarm value, can be remotely monitored the real-time temperature conditions, the full parameters of the site arbitrary settings.

Technical Indicators Dimension Drawing Wiring Diagram (5-pole) Wiring Diagram (8-core) Selection Table
Suitable media Liquid (but with a viscosity of 3 mPa-s [3CP] or less)
Flow rate range 0.5--4L/min 2--16L/min 5--40L/min 10--100L/min 20--200L/min
Medium temperature 0-90°C (unfrozen or non-condensing)
Display unit Instantaneous flow rate:L/min Accumulated flow rate:L/min
Accuracy Display value:±5%Analogue output:±3
Repeatability ±1%
Pressure resistance 15bar
Pressure loss Below 45KPa at maximum flow rate
Switching output Output 2-way PNP or NPN output
Maximum load current 80mA
Supply Voltage DC12-24V ±10%
Response Time 0.5s/1s/2s
Output Protection Short circuit protection
Output Modes Flow rate Hysteresis mode, upper and lower limit comparison mode, totalised output mode, totalised pulse output mode selectable
Temperature Hysteresis mode, upper and lower limit comparison mode selectable
Analogue outputs Voltage Output Output voltage:1~5V Output impedance:1kΩ
Current Output Output current:4~20mA Maximum load impedance:300Ω at DC12V, 600Q at DC24V

Needle Cable Signal
1 Brown Power supply
2 White Switch 2
3 Blue GND
4 Black Switch 1
5 Grey mA/pulse P

Needle Cable Signal
1 White Flow mA
2 Brown Power supply +
3 Green Temperature mA
4 Yellow T1 temperature switching quantity
5 Grey  
6 Pink  
7 Blue Power supply -
8 Red L1 switching quantity
SN53B- A P A B T Detailed description
SN53B-           SN53B Series Intelligent Vortex Sensor
  B         Model B: Plastic body, stainless steel two-end interface with display
  B1         Model B1: Plastic body with stainless steel interface without display (no switching function)
    P       PNP output (for models with display only)
    N       NPN output (for models with display only)
      A     Flow rate range: 0.5-4L/min Thread: G3/8 female thread
      A1     Flow rate range: 0.5-4L/min Thread: RC3/8 female thread
      B     Flow rate range: 2-16L/min Thread: G1/2 female thread
      B1     Flow rate range: 2-16L/min Thread: RC1/2 female thread
      C     Flow rate range: 5-40L/min Thread: G1/2 female thread
      C1     Flow rate range: 5-40L/min Thread: RC1/2 female thread
      D     Flow rate range: 10-100L/min Thread: G1 female thread
      D1     Flow rate range: 10-100L/min Thread: RC1 female thread
      F     Flow rate range: 10-100L/min Thread: G3/4 female thread
      F1     Flow rate range: 10-100L/min Thread: RC3/4 female thread
Optional without display A   1 analogue 4-20MA output (flow rate)
B   1 analogue 1-5V output (flow rate)
C   RS485 communication (flow rate)
S   One way 4-20mA + one way RS485 output for flow and temperature
Unselectable without display D   2 analogue 4-20MA outputs (temperature, flow)
E   2 analogue 1-5V outputs (temperature, flow)
E1   Switching: two switching channels for flow rate
Analogue : One 4-20MA output for flow rate
E2   Switching quantity: flow rate two switching quantity
Analogue : 1-5V output for flow rate
F1   Switching quantity: one switch for temperature and one switch for flow rate
Analogue: 4-20MA output for flow rate one way
F2   Switching quantity: temperature and flow rate each one switching quantity
Analogue: 1-5V output for flow rate all the way
F3   Switching quantity :Temperature, flow rate all the way switching quantity
Analogue : Temperature 4-20MA output all the way
F4   Switching quantity: temperature, flow rate each way switching quantity
Analogue : 1-5V output for temperature all the way
G1   Switching quantity: temperature, flow rate each one way switching quantity
Analogue : 4-20MA output for each of temperature and flow rate
G2   Switching quantity: temperature, flow rate each one way switching quantity
Analogue : 1-5V output for each of temperature and flow rate
R1   Switching quantity: two switching quantities for flow rate
RS485 communication
R2   Switching quantity: two switching quantities for temperature
RS485 communication
R3   Switch quantity: one switch quantity for each temperature and flow rate
RS485 communication
No temperature no need to choose T Default temperature range: 0-100°C
T … Customised temperature range
Shanghai Kayuan Electronic
Technology Co., Ltd.
Shanghai Kayuan Electronic Technology Co., Ltd is an enterprise specializing in the production and R&D of industrial fluid sensors and controllers. Its main products include switches and sensors for flow, pressure, temperature, and liquid level. In 2008, our assembly plant was established in Shanghai, China, to produce the PAKU series of products. We adopt advanced technology and manufacturing processes across the board. With our professional design and production technology, comprehensive product lines, excellent quality, and sales network services, we can not only provide users with timely and professional technical support but also offer high - quality one - stop services. The company has set up various departments such as the purchasing department, R & D department, quality management department, finance department, sales department, after - sales department, general office, laboratory, archive room, calibration workshop, production workshop, inspection area, storage area, shipping area, and a tea break room, aiming to provide products of excellent quality and sincere services. We adhere to the customer - centric concept of creating value for customers. According to the industry needs of customers, we continuously update technology and optimize services, aiming to become a leader in the field of process automation. PAKU products are now widely used in different industries, including automation complete sets of equipment, petroleum equipment, chemical equipment, power equipment, welding equipment, steel equipment, metallurgical equipment, automobiles, and water treatment. We have served many customers at home and abroad, and our products are sold to countries such as Canada, the United States, Brazil, Indonesia, Vietnam, Thailand, and Russia. In the increasingly competitive global market in the future, PAKU will, as always, serve a wide range of domestic and foreign customers with excellent quality, reasonable and competitive prices, on - time delivery, and perfect after - sales service. We welcome extensive cooperation with OEM and ODM customers.
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