Adjustment method of pressure switch Matters needing attention of pressure switch

Switch is something we often use in our life, and pressure switch is a simple pressure control device. When the measured pressure reaches the rated value, the pressure switch will send out an alarm or control signal. So how do you adjust these pressure switches? What are the precautions when using the pressure switch? Today, let's learn about the mystery of pressure switch.

How to adjust the pressure of the pressure switch

Pressure switch has high precision and stable performance, and is widely used in petrochemical, metallurgical, electric power, water supply and other industries to measure, control and save the surface pressure and absolute pressure of various liquids. It is an intelligent detection and control instrument.

The working principle of the pressure switch is that if the pressure in the pressure switch system is higher than or lower than the initially set safe pressure value, the disc in the sensor in the pressure switch can sense and give an alarm in time, and at the same time, it will move, so that the connector of the pressure switch can be connected to the power supply or disconnected from the power supply through the connection with the guide rod.

When the pressure in the pressure switch system is restored to the initially set safe pressure value, the disc can be sensed in time, and then instantly restored to the original position, and the switch automatically returns to the original position and state. It is important to know the adjustment method of pressure switch. Let's take a look at it in detail:

For 1, select the pressure controller (JC-2 10, HNS-2 10), and the setting range is 0. 1 to 1 MPa.

2 Turn the pressure adjusting screw on the right side of the top to make the pointer point to 0.8Mpa(8kg or 8bar) of the scale, which is the upper limit switch value.

3 Turn the pressure adjusting screw at the upper left to make the pointer point to 0.3Mpa of the scale, and the lower limit switch value =? Upper switching value-switching pressure difference =0.8-0.3=0.5, which is the lower switching value.

Matters needing attention in the use of pressure switch

1 Necessity of explosion-proof: Explosion-proof forms are divided into explosion-proof type and intrinsically safe type, and Nagano products are mostly explosion-proof.

Do I need to bring instructions? According to the customer's instructions.

Number of contacts: one contact (one output) or two contacts (two outputs).

4 Determination of set value and pressure range: It is suggested that the set range is between 30% and 65% of the pressure range, and the settable range is between15% and 90% of the pressure range.

Connection and disconnection form: adjustable or fixed.

6 Whether there is pulsation: If the pressure fluctuates or vibrates, a throttle valve is needed to restrain the instrument from being damaged by pulsating pressure.

7 occasions with diaphragm: when measuring corrosivity, high viscosity or high temperature, diaphragm is needed.

The above is the adjustment method and precautions of the pressure switch that we explained to you. I believe you know something about pressure switch, and I hope it can bring you some help. However, different types of pressure switches have different functions, such as flameproof, mechanical and electronic. If there are different needs, you can try the relative types.