■ Chemically resistant ceramic sensor with FKM sealing, suitable for rough industry environment ■ Insensitive against contamination ■ Adjustable min. logging rate of 50 ms for fast processes, e. g. for the area of vacuum packaging ■ Gas-type independent measurement Overview VD8 vacuum meters ■ Can be used as a portable instrument or for permanent installation in vacuum facilities. The gauges can be operated by a battery or a plugin power supply ■ Integrated data logger for up to 2000 measurement values ■ Vacuum meters can be placed directly into a vacuum chamber, connected to an appliance with their flange or with a suitable adaptor ■ Storage of minimum and maximum pressures achieved during measurement ■ Pressure units: mbar, Torr, hPa ■ High battery lifetime due to cycled measurements; the user can choose between automatic switch off (time adjustable) for battery saving or continuous operation ■ USB interface for easy push button data transfer to PCs, but no PC connection is necessary during measurements ■ VacuGraph™ Software: To visualize, analyze and save measurements on a PC (lite version free of charge) Vacuum Instruments www.thyracont-vacuum.com

Technical Data Measurement Principle Piezo resistive, independent of gas type Measurement Range 1600 - 1 mbar (1200 - 1 Torr) Measurement Rate 1.0 s (0.1 s if logging rate is set accordingly) Materials With Vac. Contact Stainless steel 1.4305, Al2O3 ceramic, FKM Power Supply 9 V battery or 12.15 VDC external Power Consumption Approx. 2 mW (clocked) Operating Time Li-battery: <5000 h, 6LR61 Alkaline: <2500 h NiCd rechargeable battery 150mAh: <500 h Serial Interface Mini-USB, Type B, 5pin, female, Virtual Com Port protocol Electrical Connection Mini-jack 2.5 mm for plug-in power supply Vacuum Connection...

VD81 - Compact Vacuum Meter Piezo, Data Logger Absolute Pressure 1600 to 1 mbar Model designations DN 16 ISO KF with G 1/4 female thread power supply 15 V, incl. change-over plug, EURO, US, UK, AUS VD8ALK alkaline battery 9 V (vacuum tested); WUSB0002 interface cable, 2 m, USB; VGR VacuGraph™ software Further accessories as well as detailed information about our product family can be found in our VD8 brochure.