Short Overview; Overview; Description - WIKA CPP7000-X Bedienungsanleitung

2. Design and function or Short overview

2. Short overview

EN
2.1

Overview

1. Connection for device under test or reference instrument
2. Spindle pump
3. Initial pressure pump
2.2

Description

Test pumps are used to generate pressures for checking, adjusting and calibrating mechanical and
electronic pressure measuring instruments by comparative measurements. These pressure tests
may be carried out in laboratories, workshops or on site at the measuring point.
The comparison test pump model CPP7000-X is equipped with two connections for the test
specimen and the reference instrument which can be used in any order. If the instrument to be
tested and a sufficiently accurate reference measuring instrument are connected to the test pump,
the same pressure is applied to the two measuring instruments when the pump is operated. By
comparing the two measured values at random pressure values, the accuracy can be verified or the
instrument under test can be adjusted. First the pressure is set via an integrated initial pressure
pump. For fine adjustment by approaching the measuring points precisely an adjustable volume with
precision spindle is available. Another important feature of the pumps is the rotating spindle that only
runs inside the body of the pump. This eliminates the negative effect of a bending torque on a
spindle turning outside the body and offers the advantage, especially for use in the field, that the
dimensions of these pumps do not change during operation due to the spindle turning.
6 WIKA Operating Instruction, model CPP7000-X