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Four-channel differential pressure air leak tester

PD200 Differential pressure air tightness tester

PD200 series air tightness tester is a high-precision testing instrument, which is widely used in auto parts, reversing camera mobile phones, MP3, watch bracelets, earphones, medical parts, electronic appliances, household appliances, gas appliances and other industries. Component leak detection.

The leak detector adopts a high-sensitivity differential pressure sensor, which has higher test accuracy; adopts a large-diameter air control valve, which has the advantages of fast inflation, good sealing, no heat, and long service life. The air tightness tester has an intelligent test function. According to the use characteristics of the differential pressure leak detector, it can effectively eliminate the errors caused by temperature and deformation through the learning and correction function, realize short-time precision measurement, and greatly improve the test efficiency. The system integrates new high-resolution analog-to-digital conversion technology, signal processing, automatic setup, rapid inflation and testing capabilities, an easy-to-operate interface and comprehensive communication technology. The machine adopts an intelligent control interface, which can quickly set the inflation time, pressure holding time, test time, and automatically determine the good product (GO)/non-defective product (NG), which greatly saves the test time;

  • Details
  • Application
  • Specification
  • AL6061All aluminum chassis
  • 7INCHTouch screen
  • GO/NGAutomatic determination
  • 0.1PaHigh resolution
  • USBData storage
  • RS485Serial communication

Test schematic

Basic principle: Charge a certain pressure of gas into the standard workpiece and the tested workpiece of equal volume at the same time, close the valve, and after the balance is stabilized, measure the air pressure difference between the standard workpiece and the tested workpiece, and the difference is the actual leakage value. . Because the sensor to obtain the air pressure difference is independent, the test method is not affected and limited by the inflation pressure, and the accuracy is very high.

Test flow chart

Features

1. Can quickly set inflation time, pressure holding time, test time

2. Automatic determination of qualified and unqualified, accurate judgment of micro leakage, small leakage and large leakage of products

3. Realize automatic detection, simple operation, no need for skilled workers, saving manpower

4. No drying station is required, improving the working environment and convenient maintenance

5. Improve test accuracy, quantify leakage, reduce failure rate, and realize statistical analysis of data

6. Realize non-destructive testing, safe and reliable, very suitable for testing electronic products

7. Curve simulation display of time and leakage dynamics

8. Full-function input and output interface, which can control the external fixture

9. The hold function of the single-channel leak detector can do bubble test

10. Three measurement models are available: positive pressure model, negative pressure model and positive and negative pressure model

Selection code

Reminder: 8 channels can be selected for the differential pressure test method, and up to 2 channels can be selected for the differential pressure expansion method.

PD200 series air tightness tester is a high-precision testing instrument, which is widely used in auto parts, reversing camera mobile phones, MP3, watch bracelets, earphones, medical parts, electronic appliances, household appliances, gas appliances and other industries. Component leak detection.

Measurement method

High-precision differential pressure method

Measurement channel

Single channel, dual channel, quad channel, octal channel

Inflation pressure

Inflation pressure unit: kPa, mmH2O, Torr, PSI
Inflation pressure: -100/50/100/200/400/700KPa optional
Resolution: 0.1Kpa
Display accuracy: 0.25% F.S

leak measurement

Leakage measurement unit: Pa, Pa/s, ml/min (sccm)
Differential pressure range: ±1kPa / ±2kPa optional
Leakage resolution: 1Pa
Test accuracy: 0.25%F.S

Time setting

Delay time: 0.1-999.9sec
Inflation time: 0.1-999.9sec
Equilibration time: 0.1-999.9sec
Detection time: 0.1-999.9sec
Exhaust time: 0.1-999.9sec

External control

Can control external cylinder

Quote output

Qualified and unqualified alarm output

Accessibility

Bubble leak detection function, external cylinder control

Communication function

RS485 communication, U disk data dump

Ambient temperature

0~40°C

Environment humidity

20~85%RH (no condensation)

Voltage

DC 24V about 50W

Air pressure

0.6MPa ±5%

Connection size

φ6mm or φ4mm trachea

Machine weight

About 15Kg

Size

300×220×450mm (W×H×D)

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