Test principle
OGT-G1 medical package oxygen transmittance tester using the principle of pressure difference method design, the pre-treated sample is placed between the upper and lower test chamber, tightly sealed, and then the whole system is vacuumized, when reaching a certain vacuum degree, close the lower chamber, to high pressure chamber (upper chamber) filled with a certain amount of test gas, and stabilize the pressure of the upper chamber, A constant pressure difference is formed on both sides of the sample, and the gas penetrates from the high pressure side (upper chamber) to the vacuum side (lower chamber) under the action of the pressure difference gradient. The pressure variation of vacuum chamber (lower chamber) is measured accurately, and the barrier parameters of the sample are calculated.
Reference standard
YBB00082003, GB/T1038, ASTMD1434, ISO2556, ISO15105-1, JISK7126-A and other related standards
Product characteristics
A vacuum sensor and a pressure sensor with a resolution of 0.1pa are used to ensure the accuracy of the test
The system has the ability of self-detection to avoid the continuation of testing in the fault state
Water bath temperature control, automatic control of temperature rise and fall, wide range of temperature control, extra high test temperature uniformity
The equipment adopts the ultimate zero point and sealed pipe system, and adopts the baseline technology to remove systematic errors and ensure the repeatability of test results
Sample anti-leakage structure design, stable and reliable encapsulation sample seal
The pressure control ability is accurate, and the upper chamber has the function of maintaining pressure to control the stability of the test environment
Embedded computer system control, using quality stability components, the instrument runs stably and reliably
High speed vacuum capacity, reduce vacuum time, degassing thoroughly, ensure test accuracy
The test time is short and the test efficiency is improved
Whole-process monitoring and automatic recording, the test process can be repeated whole-process
One-key automatic test, test automatically after setting test parameters, automatically judge the end of the test and save the test results
Vacuum pump self-control technology, during the test process according to the test needs the equipment can automatically shut down the vacuum pump, saving energy
Technical parameter
Measuring range: 0.05 ~ 50,000 cc/㎡·24h·0.1MPa
Sample quantity: 1 piece
Vacuum resolution: 0.1Pa
Vacuum: < 20Pa
Temperature control range: 15℃ ~ 90℃
Temperature control accuracy: ±0.1℃
Test pressure: 0.1MPa ~ 0.2MPa
Air source pressure: 0.1MPa ~ 0.8MPa
Test gas: O₂, N₂, CO₂ or other gas
Carrier gas interface: diameter 6
Sample thickness: ≤3mm
Test area: Φ97mm
Power supply: 220VAC50Hz
Weight: 45kg
Standard configuration
Main engine, vacuum pump, vacuum bellows, gas hose, disk sampler, seal grease, mouse, keyboard, display
Note: Test air source is prepared by yourself
