WIKA CPC6000 - Manual (Page 72)

Automated Pressure Calibrator
CPC 6000
72 Mensor/WIKA Operating Instructions - CPC 6000
8.3 Calibration Sled Kit
The calibration sled allows customers to cali-
brate transducers outside the CPC 6000. This
allows the customer to continue using the other
ranges inside the CPC 6000, while calibrating
one of the transducers in order to reduce down-
time. The calibration sled kit includes the serial
interface software, the calibration sled, a serial
cable to connect the sled to the host computer,
and a power supply (not pictured) for the cali-
bration sled (see Figure 8.3).
Figure 8.3 - Calibration Sled Kit
8.4 Additional Transducers
A secondary transducer of any standard range, with up to two turndown ranges, can be purchased as
an option. In all other regards, the add-on transducer will meet all of the specifications and operating
parameters outlined throughout this manual.
!
Caution
Each control channel has pressure control limits. Typically, the pump regulator
modules have a maximum limit of 15 psig and the solenoid valve regulator mod-
ules have limits of 50-150 or 1500 psig. If a sensor is placed into a control channel
where the sensor has a higher upper pressure range than the control module, the
maximum control limit will be limited to the maximum range of the control module.
While any sensor will function in any control channel, the results may not always be optimum. For
example, if a 1 psi sensor is placed in a control module that has a 1500 psi upper limit, the controlled
pressure stability may not be acceptable. Or if a 1500 psi module is placed in a control module that
has a 30 psi upper limit, it will control very well, but be limited in resolution.
8.4.1 Secondary Transducer Installation
If the add-on transducer is of a higher full scale range than the existing primary transducer, then this
newer transducer becomes the Primary, and the existing transducer must be moved to the Secondary
Transducer berth. For complete installation instructions see the text under “Transducer Replacement”
in
Section 9 , Maintenance.
8.5 Barometric Reference Transducer
The Barometric Reference Transducer is a very stable, absolute pressure device used to accurately
measure local atmospheric pressure.
The CPC 6000 will use the barometric pressure measured by the installed barometric reference sensor
in the current channel. If only one barometric sensor is installed, its measurement is shared by both
channels.