Product Overview:

The ZDC-5227 pressure controller has full range vacuum measurement and pressure (vacuum degree) control functions. Based on the composite vacuum gauge, advanced automatic control algorithms are implanted, and digital driving units and electromagnetic regulating valves are used. The operation is simple and easy to understand, and the control effect is good.

Principle of pressure (vacuum degree) control: The valve position opening is calculated based on the difference between the set target value and the current vacuum degree, and the intake air is controlled by an electromagnetic regulating valve to achieve dynamic pressure balance inside the vacuum chamber. This method is also called upstream control method.

Vacuum measurement consists of a resistance unit and a hot cathode ionization unit, and can measure ranges from high vacuum to atmospheric pressure. The resistance unit adopts the constant temperature measurement method, which has high accuracy and fast response. The ionization unit can be automatically controlled to turn on and off through a resistance unit, preventing damage caused by the opening of the hot cathode ionization gauge in a low vacuum state.

Technical parameters:

Applicable regulations: ZJ-52T resistance gauge and ZJ-27 ionization gauge

Valve: Special electromagnetic regulating valve

Measurement range: 1.0x10⁵~ 1.0x10^-5Pa

Pressure control range: 1~1.0x10^-3Pa

Control output form: Relay contact output, normally open

Relay load: 3A/220V AC, non inductive load

Number of relay circuits: 6, control unit can be specified arbitrarily

Analog output form: 0~10V, 0~5V, 4~20mA optional

Serial communication: RS-232 or RS-485, Modbus RTU protocol

Display: LCD screen with Chinese characters and scientific notation display

Refresh time: 0.5 seconds

Power supply: 220VAC/50Hz

Rated power: 35W

Operating environment: -10~40 ℃, humidity less than 85%

Dimensions: 480 * 88 * 270mm

Instrument weight: approximately 3.5Kg.

Dimensional drawing: