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Home » Our Products » GDP-C Gas Permeability Tester | Brugger Feinmechanik
GDP-C Gas Permeability Tester | Brugger Feinmechanik

GDP-C Gas Permeability Tester | Brugger Feinmechanik

GDP-C Gas Permeability Tester is designed for testing the permeability of films. It supports an extended temperature range through external water bath circulator.


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Description

GDP-C Gas Permeability Tester | Brugger Feinmechanik

Brugger Feinmechanik’s GDP-C is for testing the permeability of films. It supports an extended temperature range through external water bath circulator.

  • Different testing gases
  • Wide temperature range
  • External evaluation software

How it works

The GDP-C is for testing the permeability of dry gases on films and similar materials according to the manometric principle. The sample goes between the top and bottom part of the permeation cell. The volume of the bottom part is as small as possible and known. Prior to each test the bottom part of the permeation cell is also evacuated.
During testing the top part fills with the test gas. Additionally, the gas permeating the material causes a pressure increases at the bottom part of the permeation cell.
You can detect the gas permeability by evaluating this increase in pressure in relation to time and the device-specific volume. The increase in pressure during the test period is also evaluated and displays on an external computer. The PC connects to the GDP-C with a serial interface. You can adjust the sample temperature within the range of -20 °C and 80 °C using an external thermostat.

The GDP-C software allows you to control the following processes:

  • Setting parameters for different test procedures
  • Viewing a graphical representation of the test procedures
  • Printing charts with the test graph
  • Saving your results in Microsoft Access databases
  • Retrieving and editing graphs and results from previous tests.
  • Saving edited graphs
  • Also, saving, retrieving and printing special test data (such as pre-conditioning).

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Additional information

Test Method

Quantitative determination of the gas permeability of film materials using differential pressure (manometric method)
Test Gas

All non-corrosive and non-flamable gases
Recommended Gas Flow

60 to 100 cm³/min
Measuring Range

0.5 cm³/(m²×d×bar) to 30,000 cm³/(m²×d×bar)
Resolution

0.1 cm³/(m²×d×bar)
Main Pressure Sensor (MPS)

piezoresistive element, temperature stabilised
MPS Measuring Range

0 hPa to 1100 hPa
MPS Tolerance (absolute)

< 0.3 % of the final pressure (1000 hPa)
MPS Resolution

0.01 hPa (display) , 21 Bit (internal)
MPS Data Storage

up to 4096 test values (with dynamic time interval selection)
Pressure Absorption Gauge (PAG)

piezoresistive element (0 hPa to 2000 hPa)
PAG Tolerance

< 1% of the final pressure (1000 hPa)
PAG Resolution (Display)

0.1 hPa
PAG Data Storage

up to 512 test values (width dynamic time interval selection)
Sample Temperature Range (TR)

-20 °C to 80°C (with external thermostat)
TR Tolerance (temperature sensors)

+/- 1.5 °C
TR Resolution of the temperature display

0.1 °C
TR Data Storage

up to 512 test values (with dynamic time interval selection)
PC Interface

Serial interface RS232, 115.200 Baud
Dimensions

50 x 31 x 74 cm
Weight

20 kg
Storage Temperature

0 °C – 50 °C
Working Temperature

20 °C – 26 °C (to be constant during operation when testing films with a low GTR)
Relative Humidity

max. 80 %, non-condensing
Electrical connection GDPC

230 V / 50 – 60 Hz, power consumption ca. 50 W, approx.
Electrical connection PC

230 V / 50 – 60 Hz, power consumption ca. 50 W, approx.
Electrical connection monitor

230 V / 50 – 60 Hz, power consumption ca. 150 W, approx.
Electrical connection(Thermostat)

230 V / 50 – 60 Hz, power consumption ca. 2300 W, approx.
Standard

ISO 15105-1 / ASTM D1434-82(2015) procedure M

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