Cleaning the pressure transducer, Notice – VACUUBRAND PC 620 NT User Manual
Page 47
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.: 999188 / 19/05/2009
The controller itself is maintenance free.
Contamination of the pressure transducer or deposits will influence the accuracy of measurement.
Attention: Never use a spiky or sharp-edged tool to clean the pressure transducer.
Clean a contaminated pressure transducer as follows:
➨
Disconnect vacuum connection and cables. Disassemble controller from controller support.
➨
Fill the measurement chamber with a solvent (e. g. benzene) and allow sufficient cleaning time. Ob-
serve all regulations concerning usage 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.
➨
Assemble vacuum connection and cables. Assemble controller at controller support.
➨
Readjust the pressure transducer if necessary.
Cleaning the pressure transducer
vacuum
connection
NOTICE