Description
Vacuum tester model VT 250D (digital) is an instrument for testing packaging under controlled vacuum conditions. It comprises a round container with a cylinder made of Plexiglas and a lid of white PVC, giving clear visual access during the test cycle. A Jumo program controller manages vacuum in the range 0–500 mbar and presents values on a digital display. The unit is supplied with a predefined vacuum ramp that the operator can adjust to match individual test protocols. Mains connection is 230 V at 50/60 Hz. This digital vacuum tester from manufacturer Aerne Analytic is intended for laboratory and quality-control environments where packaging integrity must be examined under reduced pressure. The transparent Plexiglas cylinder permits continuous observation of the specimen, while the programmable controller supports reproducible vacuum sequences. The compact round-container design and digital readout make the VT 250D suitable for routine seal and leak evaluation of packaged goods without requiring complex external instrumentation beyond a standard laboratory power supply.
This article is part of pH meters, in pH & electrochemistry.
Key features
- Pack size: 1 pc
- Model: VT 250D (digital)
- Cylinder material: Plexiglas
- Lid material: white PVC
- Vacuum range: 0–500 mbar
- Controller: Jumo program controller with digital display
- Technical Information Sheet:
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Questions about Vacuum Tester to test packing VT 250D
What is this article?
Vacuum Tester to test packing VT 250D is the article on this page. Luminix Health distributes Aerne Analytic for laboratory use. It sits in pH meters, inside pH & electrochemistry, in Lab instruments.
A pH meter reads the electrode and displays pH, after calibration with at least two buffers. A meter that cannot be calibrated is a voltmeter. Resolution to 0.001 is not the same as accuracy. Portable and benchtop meters differ in the electrodes they accept and in the data they store.
A pH meter is a voltmeter on a glass electrode. The voltage tracks hydrogen-ion activity, and the electrode is converted to pH only after it is adjusted with buffers of known value. Conductivity measures how well a solution carries a current, which for dilute salts tracks concentration. Dissolved oxygen and titration are further electrodes on the same idea: a sensor, a standard, and a reading that is only as fresh as the calibration. Buffer values and chemical identity sit on PubChem. Accreditation of the calibration laboratory is the field of BELAC and EURAMET.
Which category should I open next?
The category is pH & electrochemistry. The sub-category is pH meters. The catalogue is Lab instruments.
Shelves beside this one are pH electrodes & sensors, Conductivity meters & cells, Dissolved oxygen & multiparameter meters, Titrators & electrochemistry systems and pH & electrochemistry accessories.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.