VD85 – Maintenance of Vacuum Pumps

Compact Vacuum Meter ● Piezo/Pirani ● 1200 to 5e-4 mbar

The versatile VD85 digital vacuum meter with data logger and USB interface reads pressure over 7 decades in the rough and fine vacuum range.
Its sensor combination of piezo and Pirani guarantees high resolution and precision over the whole range.

Maintenance of Vacuum Pumps

Systematic maintenance and servicing of vacuum pumps helps to prevent breakdowns in production and improves the availability of the system.

Challenge

For diagnosis of the pump as well as for executing maintenance work the achieved minimum pressure and the pump-down characteristic have to be recorded. These factors provide essential information about the actual condition and performance of the pump.

Solution

A VD85 with wide range combination sensor is capable of capturing the minimum pressure of many pump types like diaphragm, scroll or rotary vane pumps. In addition the instrument can measure and –on demand- record the complete pump-down cycle from atmospheric to end pressure. In this case the vacuum meter is used as data logger which stores the measurements in the internal data memory. Via USB interface those data can then be transmitted to a PC for further analysis and documentation.

Description
Weight 1.1 kg
Dimensions 25 x 16 x 9 cm
Gas dependency depending on gas type, independent of gas type (Piezo)
Measurement range mbar 1200 – 5e-4 mbar
Measurement range Torr 900 – 5e-4 Torr
max. overload 2 bar abs.
Accuracy 1200 – 40 mbar: 0.3 % f.s. | 40 – 2e-3 mbar: 10 % f.r.
Resolution 1200 – 1000 mbar: 1 mbar, 1000 – 1 mbar: 0.1 mbar,
Measurement rate 1.0 s
Logging rate 1 … 6000 s
Materials in contact with vacuum Stainless steel 1.4305, Tungsten, Nickel, glass, gold, FKM
Operating temperature +5…+50 °C
Storage temperature -20…+60 °C
Voltage supply 9 V battery or 12…15 VDC external
Power consumption Approx. 110 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): Stainl. steel small flange DN 16 ISO-KF
Display LCD 12 mm
Dimensions 60 x 120 x 62.5 mm
Protection class IP40
Weight 230 g (battery included
Additional information
Brands

Thyracont Vacuum Instruments