VACUUBRAND MV 2 VARIO - Manual (Page 37)

page 37 of 41
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check
carefully the validity of this document with respect to his product. manual-no.: 999035 / 15/12/2009
Cleaning the gauge head VSK 5
The gauge itself is maintenance-free.
If the vacuum system is contaminated (oil, particles, etc.), contamination of the pressure transducer will
influence the accuracy of measurement.
Do not clean the pressure transducer using a spiky or hard tool!
➨ ➨ ➨ ➨ ➨ Fill the gauge head chamber with a solvent (e. g. benzene) and allow sufficient cleaning time. Observe
all regulations concerning use and disposal of solvents!
➨ ➨ ➨ ➨ ➨ Drain the solvent and dispose of in accordance with regulations, repeat cleaning if necessary.
➨ ➨ ➨ ➨ ➨ Rinse the gauge head chamber several times with alcohol in order to remove all solvent residues.
➨ ➨ ➨ ➨ ➨ Allow the pressure transducer to dry.
➨ ➨ ➨ ➨ ➨ Readjust the pressure transducer if necessary.
Changing the valve at the outlet manifold (only MV 10 VARIO)
➨ Note position of valve and remove.
☞ Check valve for damage and replace if necessary. Make
sure that the valve is correctly seated.
➨ Reassemble cover plate.
➨ Use open-ended wrench to assemble fitting with connection
hoses to the pump head.
➨ Use open-ended wrench to remove the screw-in fitting, which
runs directly to the cover plate of the outlet manifold, at the
pump head.
➨ Unscrew the countersunk head screws at the cover plate of
the manifold and remove cover plate.
Calibration in the factory
Control of measuring equipment
The VACUUBRAND DKD calibration laboratory is accredited by the Physikalisch-Technische Bundesanstalt
(PTB; German national institute for science and technology and the highest technical authority of the
Federal Republic of Germany for the field of meteorology and certain sectors of safety engineering) for the
measurable variable pressure in the pressure range from 10
-3 mbar to 1000 mbar in accordance with
the general criteria for the operation of testing laboratories defined in the DIN EN ISO/IEC 17025:2000
series of standards.
Calibration in the VACUUBRAND calibration laboratory:
-
To meet the requirements of the DIN ISO 9000ff and 10012 series of standards regarding the calibration
of inspection, measuring and test equipment at specified intervals.
- To document that the vacuum gauges calibrated are traceable to national standards of the PTB.