Pressure Connections; Connection Of The Test Item; Overpressure Protection - WIKA mensor CPC2000 Betriebsanleitung

4. Design and function
4.3

Pressure connections

Only use original parts (see chapter 12 "Accessories").
The pressure connections are located on the right-hand side of the front of the CPC2000.
EN
Mechanical and also electrical pressure measuring instruments can be connected.
The hose, lines and fittings etc. must always be approved at least for the working pressure
which corresponds to the pressure of the instrument. In addition, there must not be any
leakage points during the calibration.

4.3.1 Connection of the test item

The connection to the low-pressure controller is made via a 6.6 x 11 mm pressure
connection. The hose diameter should be 6 mm.
Differential pressure instruments are connected to the ⊕ and ⊖ connections of the
■
instrument.
Gauge pressure instruments are connected to the ⊕ connection (⊖ connection is
■
open to atmosphere).
Instruments for negative gauge pressure are connected to the ⊖ connection (⊕
■
connection is open to atmosphere).
Only connect test and calibration installations once the system has been
depressurised!

4.3.2 Overpressure protection

The maximum permissible pressure must not be exceeded, see chapter
11 "Specifications".
14 WIKA operating instructions, model CPC2000