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VD81 Compact Vacuum Meter ● Piezo ● 1600 to 1 mbar

Name: VD81 Compact Vacuum Meter ● Piezo ● 1600 to 1 mbar
SKU: VD81
Price: 435.00 EUR
Availability: InStock

€ 435.00 excl. VAT and transport costs

The versatile VD81 digital vacuum meter with data logger and USB interface measures absolute pressure in the rough vacuum range with a resistant Piezo sensor.

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SKU: VD81 Category: VD8 Compact vacuum meters Tags: 1600 - 1 mbar, Data logger, Display, Piezo, Vacuum meter

Overview VD81 Piezo vacuum meter

Chemically resistant: Chemically resistant ceramic sensor with FKM sealing, suitable for rough industry environment
Robust: Insensitive against contamination
Fast: Adjustable min. logging rate of 50 ms for fast processes, e. g. for the area of vacuum packaging
Versatile: Gas-type independent measurement

Overview VD8 vacuum meters:

Variable: VD8 compact 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
Data logger: Integrated data logger for up to 2000 measurement values
Flexible connection: VD8 vacuum meters can be placed directly into a vacuum chamber, connected to an appliance with their flange or with a suitable adaptor
Min/Max memory function: Storage of minimum and maximum pressures achieved during measurement
Long battery livetime: Due to cycled measurements, the compact vacuum meter reaches a high battery lifetime; the user can choose between automatic switch off (time adjustable) for battery saving or continuous operation
Pressure units: mbar, Torr, hPa
Data export: USB interface for easy push button data transfer to PCs, but no PC connection is necessary during measurements
VacuGraph^TM Windows Software: To visualize, analyze and save measurements on a PC (lite version free of charge)

If you have any questions about the VD81 Piezo vacuum meter or need assistance, please do not hesitate to contact us.

→ Go to all VD8 vacuum meters | → Go to accessories for all VD8 compact vacuum metesrs

Weight	1.1 kg
Dimensions	25 × 16 × 9 cm
Measurement principle	Piezo resistive
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	0.05 s … 6000 s
Materials in contact with vacuum	Stainless steel, 1.4305, 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: <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	Kleinflansch DN16 ISO KF, G1/4 Innengewinde oder Schlauchwelle (Zubehör VD81SW1)
Display	LCD 12 mm
Dimensions	60 x 120 x 47 mm
Protection class	IP40
Weight	200 g (battery included)

Description	Manual	3D models
VD81 vacuum meter, Piezo
VD83 vacuum meter, Pirani
VD84 vacuum meter, Pirani
VD85 vacuum meter, Piezo/Pirani
VD8 vacuum meter, brochure	-	-

VD8 Compact-Vacuum Meters

What is the Min/Max memory feature?

Extreme values (minimum and maximum pressure) recorded during the measurement process are stored directly in the instrument and can be shown on the display when the measurement is complete.

Is it possible to place a VD8 compact vacuum meter directly into the vacuum for measuring?

Yes, our VD8 compact vacuum meters can be directly placed into a vacuum chamber. With their data logger functionality the measurements are stored and can be sent to a PC for evaluation, when the measurement is complete.

What happens with the instruments’ parameters or stored data when the battery is changed?

A memory chip, which works independent from a battery, is used for storage of measurements and the instruments’ parameters. However, the extreme values (Min/Max memory) will be lost when the battery is changed.

Is the battery included in the shipment?

Yes, the fitting battery is included in the initial shipment. VD8 can also used with a plug-in power supply (optional accessessory).

What battery types are suitable for VD8 compact vacuum meters?

We recommend 9 V alkaline batteries. Alternatively, 9 V lithium batteries or 9 V rechargeable batteries can be used. Zinc coal batteries are not suitable for the VD8, due to its high internal resistance.

How often do I need to recalibrate the compact vacuum meter?

The period between calibrations depends on the specific application. Especially in cases of coatings and contaminations on the sensor-head or if it is used in extreme temperature conditions, readjust of the instrument can be neccessary. For quality assurance matters, we recommend to return the instrument for calibration every one or two years. We can offer a works calibration (article no. ADJCERT) or a DAkkS calibration (article no. DKDCERT).

Do I have to mount the instrument into a specific position?

The instruments can be mounted in every position. The best accuracy is achieved if the flange of the instrument is mounted horizontally because the instruments are calibrated in this position. It is not recommended to mount the sensor at the bottom of a pipe as condensate and dirt could be collected in the sensor cell.

What possibilities for data storage are available with VD8?

Up to 2000 measurements can be stored in the instrument and sent to a PC when the measurement is complete with the integrated data logger. Alternatively, the data can be sent and evaluated with the PC during the measuring process (online measurement).

What is the function “Data logging at measurement change” used for?

To optimally use the memory, especially for long term measurements, the VD8 offers the function “Data logging at measurement change”. Measurements are only logged if the pressure changes, thus, reducing the amount of insignificant data.

Is the VacuGraph® software required for using a VD8 compact vacuum meter?

The VacuGraph® software is an useful accessory for the most efficient use of our vacuum meters. It serves for the communication between a PC and vacuum meter. So you can e.g. transfer the measurements stored in the data logger to a PC for evaluation or you can change parameters like the sample rate comfortable in the configuration board of the software.

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VD81 Compact Vacuum Meter ● Piezo ● 1600 to 1 mbar

Further relevant products

VD8ZUB Accessory Set ● for VD8 Compact Vacuum Meters

VGR VacuGraph software for Windows, MacOS and Linux

DCERT Works Calibration, digital

VD8ANS Connection Set

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VD81 Compact Vacuum Meter ● Piezo ● 1600 to 1 mbar

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