Product Details

Introduction

The vacuum apparatus is used to measure air pressure by utilizing the phenomena of heat conductivity. It is composed of resistance gauge, power supply system, measuring circuit, V/F converter and SCM.

Power supply system is used to supply power to the resistance gauge and keep the resistance wire at constant temperature. As heat loss is varying depending on the pressure of the air even if the resistance of the gauge is constant, the higher the pressure, the more heat will be transmitted, with automatic compensation of the power supply system, the temperature of the resistance wire is kept constant, therefore the pressure of the air can be obtained by measuring the change of the supply voltage, which will be displayed in the form of exponent.

Features

Measurement range: 100000Pa—1.0×10-1Pa

Resistance: digital display

Adopt MCS-51 monolithic microprocessor, realize power- on automatic measuring.

With three groups of pressure control normal open/ normal close relay contact to preset users’ setting (Refer to 4.2 for the setting in detail)

Technical parameters

Gauge: ZJ-52T

Measurement range: 100000Pa—0.1Pa

Control range: 900000 Pa--1.0×10-1Pa

Rated load of the contact: AC220V/1A DC28V/10A

Power supply: 220V/1A DC28V/10A

Rated power: 30W

Case size:265×88×280mm

Gauge lead-in:3.5mm (can be adjusted according to the requirement of customers)

Service temperature: 0—45℃

Relative humidity: <85%

Dear customer,

We ,Xi’an Yima Opto-electrical Technology Com.,Ltd. is an integrated economic entity of R&D,manufacturing and trading with over 20 years of history .

Our business scope covers various fields such as biochemical analysis,environmental protection,industrial testing, bioscience,medical apparatus and instruments,internet technology and some frontier science.

Through a long-time development,we own a national resources system of various professional talents , abundant supply for various components &parts and special materials, full producing &processing equipments , strong Technological standardization and a complete quality assurance system.

If you need OEM or ODM in manufacturing ,scientific research , market development and or you want to build your own brand in your country, it’s our honor to cooperate with you.In this way ,we have developed many products for our customers from the USA, Europe and South Africa and got good feedback on Alibaba

We firmly believe that science and technology is no boundaries

Our mission is to make every effort to contribute to all humanity.