What is the diaphragm pressure switch of the constant temperature and humidity Test Chamber refrigeration system?

Constant temperature and humidity Test Chamber refrigeration unit pulse damping pressure controller

The pressure of the system being queried is introduced into the pressure of the Test Chamber through the capillary. When the working pressure of the query rises to a certain standard critical point P1, the pulsation damper will be unbalanced and vibrate suddenly. When the onset shifts for 1 month and the yellow membrane is pushed by the pendulum to touch the yellow membrane, the same shift will also occur. The movable contact on the yellow film is in contact with the fixed contact, and the power switch is closed when the working pressure drops to a certain level. When the market price is used, the pulse damper suddenly vibrates in the opposite direction, recovers to its original state, and the dynamic and static contacts of the power switch are separated.

Compared with the metal bellows type, the pulse damping type pressure controller has the advantages of high precision, firm function, sealed type, good vibration resistance, small size, and convenient use. It is slowly replacing metal bellows type pressure controllers.

What is the actual function of an automotive relay?

A car relay is a control appliance that actively switches power circuits using inevitable input data signals. There are two main ones, one is operating system software (alias input control loop); the other is operating system software (alias output control loop).

Automotive relays can often play a role in active control, because when a certain data signal (output) input into its control system software, such as operating voltage, standard pressure, temperature, etc., reaches a certain value, the output control loop is activated. The manipulated star (the output) flutters from zero to some value (or suddenly jumps from some value to zero).

As can be seen from the characteristics of the relay, various automotive relays include so many and some: one is able to reflect the inevitable input data signal from the outside world and convert it into a special scalar response mechanism (such as an electromagnetic coil); the other is An actuator (such as a circuit breaker) that conducts conduction operations on the power circuit under test.

Second, automotive relays cannot conduct conduction control on actuators at any output. They pose only when the output reaches a certain value. This type of magnetically induced output changes and manipulates the actuator. called a reference mechanism (such as a tension spring)

The installation of large and medium-sized instruments and equipment such as constant temperature and Humidity Chamberes requires wire connectors

When chatting with the customer yesterday, the customer said that he had an electric shock accident when using a constant temperature and Humidity Chamber. He felt that a safety accident had occurred. Later, when he learned about the situation, he realized that it was caused by electrostatic induction. Therefore, assign a welder to check the switching power supply. In the case of a grounding device, the welder leads the grounding wire independently. I was surprised because our company will undoubtedly remind customers that they need to have wire connectors when they hand over the machine. Could it be that everyone didn't prompt at that time? After understanding the situation, the customer said that everyone was very professional during the equipment installation. Technologists have been prompted to connect to the moral line, and they do.

Constant temperature and humidity Test Chamber to make its characteristics stable?

Before introducing the setting method of the constant temperature and humidity Test Chamber, we must first pay attention to the stable characteristics of the constant temperature and humidity Test Chamber, to ensure that 80% comes from the manufacturer's settings, the selection of parts and mature technology, and the remaining 20% lies with the customer Proper maintenance and maintenance, including the correct setting method and some simple tips, are explained for you one by one below:

The refrigeration unit is closely related to the refrigeration compressor. The minimum volatilization temperature of unipolar steam reduction refrigeration unit mainly depends on its cold working pressure and engine compression ratio:

1. For all refrigerants, the lower the volatilization temperature, the lower the volatilization working pressure;

2. When the volatilization temperature is too low, some common refrigerants have reached the freezing temperature, and the refrigerant flow and circulation system cannot be completed;