2. Safety
6
WIKA Operating Instruction, model CPP4000-X
EN
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2.
Safety
2.1
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.
2.2
Intended use
Comparison test pumps serve as pressure generators for the testing, adjustment and calibration of
mechanical and electronic pressure measuring instruments through comparative measurements.
These pressure tests can take place in the laboratory or workshop, or on site at the measuring point.
The hydraulic comparison test pump features two connections, for test item and reference
measuring instrument, which can be used in any order. If one connects the test item and a
sufficiently accurate reference measuring instrument to the test pump, on actuating the pump, the
same pressure will act on both 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 integrated dual-area spindle pump enables rapid filling of the test system and smooth pressure
generation up to 4,000 bar. At the same time, the precise, adjustable spindle pump also enables
fine pressure adjustment.
A control schematic for pressure generation on the instrument base facilitates quick and easy
operation. The pump is further characterized by the spindle which runs solely within the pump body.
This eliminates any harmful bending moment from an externally running spindle and, especially for
field operation, there is the advantage that dimensions of this pump do not alter during operation
through the rotation of the spindle.
