Customized 20-200Pa 30-300Pa 50-500Pa Differential Pressure Switch Easy to Install

The pressure difference switch monitors the status of the filter screen, fan and air flow in the air duct. The air flow pressure difference switch is used for the air in the air conditioning system or ventilation system, such as clean room, intelligent building fan air conditioning filter screen, environmental protection, fan and blower control, filter and blower control, fluid and level control, gas flow control.

As well as non combustible gas and non corrosive gas filter monitoring and flow switch

Characteristic:

Through the knob, the pressure difference range can be set freely, which fully meets the pressure difference alarm requirements of the filter screen of AHU unit. The high temperature resistant gas film material ensures the sensitive action under the small pressure difference. The single pole double throw switch allows the user to freely choose to use the normally open or normally closed nodes. The installation is simple. The top cover only needs a fixed screw, and the combined support is convenient for vertical and horizontal installation. The medium temperature is in the range of - 15 / + 60 ℃. The production calibration of bo603 is at room temperature, and it is also installed near room temperature. Water vapor condensation may occur in the system with high humidity. When installing, pay attention to the downward direction of the hose connection nozzle. Pressure connection and wiring: 2 plastic pipes (P1 and P2), P1 to high pressure end (marked with "+") P2 to low pressure end (marked with "-").

Wiring diagram description:

The actual pressure difference is less than the set value, and the contacts 1-2 are on. If the actual pressure difference is greater than the set value, contacts 1-3 are on.

matters needing attention:

If the installation of the differential pressure switch is not in accordance with the above instructions and the two ports are downward, the detection pressure difference of the switch point will deviate by 20Pa, which is mainly determined by the principle of the differential pressure switch (a very thin gas film in the differential pressure switch will be divided into two chambers internally, if the gas film is not installed vertically but horizontally, the self weight of the gas film itself will affect the detection of the gas pressure difference).

Avoid electric shock or damage to the equipment. Make sure that the power switch is closed when removing the upper cover.

The wire connection shall be completed and the connection status shall be checked before use. Incorrect wiring may cause permanent damage to this device.

Before use, the installation hole of plastic pipe shall be punched, and the "Z" bracket shall be installed on site (standard configuration).

Ensure that the assembly surface has minimum or no vibration, and the switch can be directly fixed on the pipeline, heater or panel.

Pressure connection location mark: + (high pressure) and - (low pressure or static pressure)

Technical parameters:

Maximum pressure: 10KPA

Pressure medium: air, non flammable and non corrosive gas

Protection level: IP54

Electrical connection: amp connector or screw terminal

Switch capacity: 1.5A (0.4A) / 250VAC

Installation direction: vertical (standard installation direction)

Allowable working temperature: - 20 - + 85 ℃

Minimum starting pressure: Standard: 20Pa; adjustable set point and clearance

Storage temperature: - 40-85 ℃

Minimum starting clearance: 10Pa (range: 20 ~ 30Pa)

Membrane material: Silicon

Plastic pipe diameter: Φ 6.2mm service cycle: > 100000 times

Weight: 100g

Accessories silicone hose 2m long

2 connections with mounting screws

Two self tapping screws for mounting the housing

3 screw terminals for external leads

Specification and model:

Order model pressure range

AF604-200 20-200Pa

AF604-300 30-300pa

AF604-500 50-500Pa

AF604-1000 100-1000pa

AF604-2000 500-2000Pa

AF604-2500 1000-2500Pa

Beijing aifanpeng Instrument Co., Ltd. was founded in 2011, specializing in building automation system. Products include no spring return damper actuator, temperature and humidity sensor, wind speed sensor, carbon dioxide sensor, differential pressure sensor, pressure switch.

Most of our products have passed CE certification and some other Chinese quality certification. In many museums, hospitals and hotels, you can find our sensors and actuators.

We pursue high quality products and provide excellent professional after-sales service.

Looking forward to establishing business relationship with you.