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Electronic flow and temperature switch-SN12B

NEXT: Electronic flow switch-SN10

Product introduction

Based on the thermal principle, the sealed probe contains two resistors, one of which is heated to act as a detection resistor and the other unheated to act as a reference resistor. When the medium flows, the heat is carried away from the heated resistor and the resistance value is altered, with the difference between the two resistances being used as a basis for determining the flow rate. No moving parts, maintenance-free, easy to install, one model for a variety of pipe diameter requirements, switching volume continuously adjustable, very low pressure loss, compact structure, LED display flow trend and switching status.

Product Applications Technical Parameters Dimension Drawing Wiring Diagram Selection Table

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

-Setting range: user-defined settings
-Signal output: PNP, NPN, relay, analogue 4-20MA
-Power supply: 24V 20% DC
Turn-on current: Maximum 400mA (PNP or NPN type)
Maximum 1A@48V(Relay type)
-No load current: Max 80mA
-Flow rate indication: LED digital tube
-Setting mode: keypad
-Pressure resistance range: 100bar
-Temperature gradient: <4°C/S
-Response time:1-13s,typical value 2s
-Initialisation time: about 8s
-Electrical protection: reverse phase, short circuit, overload protection
-Protection level:IP65
-Medium temperature:-20-80°C
-Ambient temperature: -20-80°C
-Storage temperature: -20-100°C
-Wiring: M12 connector/directly attached 2 metres of wire optional
-Material: probe: stainless steel
Housing: stainless steel
Weight:about 0.4kg

Selection Table

SN12B

G2H

Detailed description

SN12B

SN12 Series Electronic Flow and Temperature Switches

M1K

Connection thread M18*1.5 female thread (rod length including thread 60mm)
With the mounting accessories, it is easy to rotate and adjust in the field installation direction

G2H

Interface thread G1/2 external thread

G4H

External thread G1/4

Customised threads, e.g. NPT1/2, option N12

DC24V±20% power supply

Temperature: 0 - 100°C

PNP Output

NPN output

1 way temperature switch + 1 way flow switch

1 road temperature switch + 1 road flow switch + temperature
4-20MA + flow 4-20MA

Dual 4-20mA output for temperature and flow

Probe material ：304 stainless steel

Probe material: 316L stainless steel

Plug-in type (2m cable as standard)

Direct wire type

Probe length Unit mm (including thread)

Customised probe length Unit mm (including thread)

* Factory-assembled M12 connector type ZL05-PU02FG.
* M18*1.5 female thread for mounting, please note the optional mounting accessories.
* Customised threads are available, H is male and K is female.
* Electrical accessories and mounting accessories please refer to the accessories page.
* The selection table is for parameter selection only, and the corresponding code of the parameter will be shipped from the factory.

Shanghai Kayuan Electronic
Technology Co., Ltd.

Shanghai Kayuan Electronic Technology Co.,Ltd is an enterprise specializing in the production and R & D of industrial 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,PAKU INTELLIGENT EQUIPMENT(SHANGHAI)CO.,LTD a subsidiary of Kayuan 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 tea break rooms, 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.