Compact Vacuum Meter ● Piezo ● 1600 to 1 mbar
The versatile VD81 digital vacuum meter with data logger and USB interface measures absolute pressure in the rough vacuum range.
This compact vaccum meter is often used in the area of vacuum packaging.
VD81 – Vacuum Packaging
Vacuum packaging increases storage life of food products by a factor 3 to 5. For that purpose the package is first evacuated and then hermetically sealed.
Challenge
The correct functioning of the packing machine must be checked regularly. Only when there is sufficient vacuum inside the packing, quality, freshness, nutrients and taste of the product are fully maintained.
Solution
A battery operated VD81 is put into the packing machine in defined time intervals and vacuum-sealed instead of the product. During the packaging process the instrument stores the achieved minimum pressure. After the vacuum meter is taken out of the packing this minimum pressure can be displayed and checked.
Benefits at a Glance
Specifications
| Weight | 1.1 kg |
|---|---|
| Dimensions | 25 x 16 x 9 cm |
| Gas dependency | independent of gas type (Piezo) |
| Measurement range mbar | 1600 – 1 mbar |
| Measurement range Torr | 1200 – 1 Torr |
| max. overload | 4 bar abs. |
| Accuracy | 0.3 f.s. |
| Resolution | 1 mbar |
| Measurement rate | 1.0 s (down to 0.05 s if logging rate is set accordingly) |
| Logging rate | 50 ms … 6000 s |
| Materials in contact with vacuum | Stainless steel, 1.4307, Al₂O₃, ceramic, FKM |
| Operating temperature | +5…+50 °C |
| Storage temperature | -20…+60 °C |
| Voltage supply | 9 V battery or 12…15 VDC external |
| Power consumption | Approx. 2 mW (clocked) |
| Operating time | Li-battery: |
| Serial interface | Mini-USB, Type B, 5pin, female, Virtual Com Port protocol |
| Electrical connection | Mini-jack 2.5 mm for plug-in power supply |
| Article Number (choice of vacuum connection): | stainless steel small flange DN 16 ISO-KF with G1/4- female thread or screw-in hose nozzle (accessory VD81SW1) |
| Display | LCD 12 mm |
| Dimensions | 60 x 120 x 47 mm |
| Protection class | IP40 |
| Weight | 200 g (battery included) |
