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Explosion-proof electronic flow switch-SN11B

Product introduction

principle and characteristics. Based on the thermal principle, the sealed probe contains two resistors, one of which is not heated as the
detection resistor,and  the other is not heated as the reference resistor. When the medium flows, the heat on the heating resistor is taken away, the resistance value is changed, and the difference between the two resistors is used as the basis to judge the flow rate. No moving parts, maintenance-free, easy installation, one model is suitable for a variety of pipe diameter requirements, switching continuously adjustable, extremely low pressure loss, compact structure, LED display flow trend, and switch status.

product application
Pneumatic and hydraulic dual-purpose, low flow rate alarm, can be used for pneumatic and hydraulic systems, can be used for circulating water, cutting fluid, and lubricating oil cut-off detection, and pump idling pr tection.

Product Application Wiring Diagram Technical Specification Dimension Figure Lde Function And Setting (On/Off Type) Installation Instructions Selection Table

Pneumatic and hydraulic dual purpose, low flow rate alarm, can be used for pneumatic and hydraulic systems, can be used for circulating water, cutting fluid and lubricating oil cut-off detection, and pump idling protection.

setting range:   1...150cm/s(water)
3...300cm/s( oil)
20...2000cm/s( air)
Signal output: PNP,NPN, relay normally open + normally closed (SPDT)
power supply:   24V±20%DC
Switch on current: maximum 400mA(PNP or NPN type)
No-load current: Max. 80mA
Flow indicator: LED row (6)
setting mode: potentiometer setting
Voltage range: 100bar
Temperature gradient: ≤4°C/S
Response time: 1-13s, typical 2s
initialization time: about 8s
Electrical protection: reverse phase, short circuit, overload protection
level of protection: IP67
medium temperature: -20-80°C
environment temperature:-20-80°C
storage temperature:-20-100°C
Wiring mode: M12 connector/optional with 2 meters wire directly
Material: Probe: stainless steel
shell:cast aluminium
anti-hazard classification :EX d ll CT4

For vertical installation, it should be installed on the pipe section flowing from bottom to top.
When mounted horizontally, the probe should be kept away from air and sediment.

SN11B- G2H A X D 30  specification
SN11B-               SN11B series explosion-proof electronic flow
  M1K             Interface thread M18*1.5 internal thread
With the installation accessories, it is
  G2H             Interface thread G1/2 female thread
  G4H             Interface thread G1/4 male thread
  K5             Chuck connection (outside diameter 50.5mm)
                Custom threads, such as NPT1/2, type N12
    A           DC DC24V±20% power supply
              PNPoutput
              NPNoutput
              relay output
              Normally open + normally closed output
          X     Probe material: 304 stainless steel
          XL     Probe material: 316L stainless steel
            D   amphenol connector
              30  Probe rod length unit mm (including thread)
              L Customized probe rod length unit mm
(including thread)
 * Select M18*1.5 internal thread installation mode, please pay attention to the selection of installation accessories
 * Customizable thread, H for external thread, K for internal thread
 * For selection of electrical accessories and installation accessories, please refer to the appendix page on page -
 * The selection table is only available for parameter selection, and the corresponding code is delivered.
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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