Bendtsen Roughness and Porosity Tester - OpTest

• Fully automated measuring cycle, sample is not influenced manually.
• Adjustable feet for the equipment leveling.
• Big Color Touch Screen 7”.
• Full Statistics, with graphs, average, deviation, min and max value, etc.
• Automated system for aligning measuring and positioning head on sample under constant pressure of 98Kpa. (490 kPa Optional).
• Test Pressures according to standard: 0,74 – 1,47 – 2,20 kPa (Continuously adjustable).
• Glass measuring surface attached to the equipment.
• Photocell for automatic test when positioning the sample, or manual test.RS- 232 interface for connection to management and control programs.
• USB connection for maintenance works and for connection with USB printer
• CE mark.Measuring ranges:
• 25 - 5.000 ml flow rate
• Pressure difference: ±0.5% of the final value

MEASURING ACCURACY:
• Pressure differential: ±0.005kPa linear
• Flow: ±0.5% of the final value
• Accuracy of test duration: ±0.5s Roughness:
• Measuring land: 31.5mm diameter, 150µm, 267g
• Test duration, Dwell time: 1-40 seconds (adjustable)
Air permeability:
• Measuring area : 10 ± 0.2 cm²
• Test duration, , Dwell time: 1 - 40 seconds (adjustable)
• Display in ml/min or µm/Pa*sec
• Gurley Value: Seconds

FLOW SENSORS (Optional)
• 15 - 3.000ml/min
• 5 - 1.000ml/min
• 1 - 5.000ml/min
• Other High Porosity/Roughness under Request. Up to 10.000 ml/min
Electricity: 110-230V, 50-60Hz (40W)
Compressed air: 400-600 kPa

DIMENSIONS AND WEIGHT:
Dimensions: 27 x 68 x 60 cm (W x D x H)
Net weight: 1 head 23kg, 2 head 28kg

SURFACE ROUGHNESS:
The operator places the sample below the measuring head. By pushing the start button, the measuring head lowers onto the sample and gently clamps it. The test starts. As soon as the preset flow rate (e.g.1,47 ml/min) is stable, the measuring value is displayed. The test time is adjustable from 1-40 seconds. After test performance, the sample is released. The measuring head returns to its initial position and the device is ready for further measurements.

AIR PERMEABILITY :
The operator places the sample below the measuring head. By pushing the start button, the measuring head lowers onto the sample and gently clamps it. Air flows through the sample at a selected pressure (e.g.1,47 KPa). As soon as the preset flow rate is stable, the measuring value is displayed. The test time is adjustable from 1-40 seconds. Gurley values are calculated according to the standard and are displayed in Gurley seconds by default.

USER INTERFACE :
• Machine controlled by means of a touch screen and an auxiliary button.
• Through the visualization and control screen, the total control and configuration of the machine can be managed.
• Easy and intuitive operation of the control menu, configurable in different languages.
• Two result tables with a maximum of 10 result types and 20 test results per table.
• Possibility of display a diagram showing different test results.
• Statistical control. Mean value, standard deviation and maximum and minimum values.
• Value in µm/Pa*sec shown in statistics.
• Periodical program updating (without additional costs).
• Maintenance Menu, Set-Up and Calibration.