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WIKA operating instruction, model CPP120-X
EN
08/2020 EN/DE
3. Safety
3. Safety
3.1 Explanation of symbols
WARNING!
... indicates a potentially dangerous situation that can result in serious injury
or death, if not avoided.
CAUTION!
... indicates a potentially dangerous situation that can result in light injuries or
damage to property or the environment, if not avoided.
Information
... points out useful tips, recommendations and information for efficient and
trouble-free operation.
3.2 Intended use
This model CPP120-X pneumatic comparison test pump is used for the testing,
adjustment and calibration of mechanical and electronic pressure measuring instruments
through comparative measurements.
These unit can be used in the laboratory or workshop, or on site at the measuring point.
By connecting the test item and a sufficiently accurate reference pressure measuring
instrument to the test pump, the same pressure will act on both measuring instruments.
By comparison of the two measured values at any given pressure value, a check of the
accuracy and/or adjustment of the pressure measuring instrument under test can be
carried out.
The CPP120-X requires a regulated supply of clean dry gas to operate. We recommend
using a nitrogen cylinder as the gas from this is normally dry and clean.
Alternatively use compressed air, filtered and dried to remove oil and moisture which
could cause that the piston cylinder system or the moveable parts of the base unit
become sticky.
This instrument is not permitted to be used in hazardous areas!
The instrument has been designed and built solely for the intended use described here,
and may only be used accordingly.
The technical specifications contained in these operating instructions must be observed.
