WIKA CPC6000 - Manual (Page 78)

Automated Pressure Calibrator
CPC 6000
78 Mensor/WIKA Operating Instructions - CPC 6000
9.2 Troubleshooting the Pneumatic System of the CPC 6000
PROCEED WITH CAUTION! The following test feature is a powerful troubleshoot-
ing tool, but it incurs a dangerous potential for misdirecting high pressures. Study
the pneumatic schematics (Figures 9.2.1C and 9.2.2B) to understand the possible
consequences of various pressure routings.
9.2.1 Pump Regulator
The CPC 6000 has two Controller test screens; one is for the Pump Regulator (see Figure 9.2.1A) and
the other is for the Solenoid Valve Regulator (see Figure 9.2.2A).
To get to the test screen press [Setup], [Controller], and [Test]. The pump regulator test screen allows
control of the solenoid valves directly by the operator. Pressing the key labeled [Closed] or [Open] will
toggle the associated solenoid between the open and closed states. As each key is pressed the key
will change text and color, and the target solenoid will
make an audible “click”. If a key changes color
without the accompanying click it is an indication of a
defective solenoid or a bad connection. Pressing the
[+] or [-] key will actuate the pump and increase or
decrease the system pressure respectively. The
[speed] key allows adjustment of the relative rate at
which the pump operates to increase or decrease
pressure. The [%] key allows an adjustment of the
duty cycle of the supply and exhaust valves. The
Primary and Secondary labels show the pressure
sensed at the respective transducers. The Rate [psi/
sec.] label indicated the rate of change of the system
pressure. See Figure 9.2.1B for the pump regulator
pneumatic module. See Figure 9.2.1C for the pneu-
matic schematic for the pump regulator.
Figure 9.2.1A - Test Screen, Pump Regulator
Figure 9.2.1B - Pneumatic Module, Pump Regulator
!
Caution
System pressure should not be
driven above the range of the
primary transducer.
The valve isolating the secondary
transducer should be closed
before the system pressure is
driven above the range of the
secondary transducer.
!
Caution