WIKA Pascal 100 - Manual (Page 24)

6 Commissioning, operation
24 WIKA Operating Instruction, Pascal 100 and Pascal 100/IS
GB
There are three different pneumatic schemes available in a standard Pascal 100 or
Pascal 100/IS configuration:
■ This is an example of pneumatic circuit with two sensors in parallel to the pump. One of
them is protected by an overpressure valve, the other one is not protected because it has a
full-scale equal to the maximum pressure generated by the pump. See following:
Figure 10 – Circuit with two sensors in parallel
■ This is an example of pneumatic circuit with two sensors: one sensor connected in parallel
to the pump with over pressure protection, and one sensor directly connected for
measuring the external pressure signals without overpressure protection. See following:
Figure 11 - Circuit with transducer connected to process
Transducer 1 Transducer 2
Overpressure-
valve
Transducer 1 Transducer 2
Pressure- Vacuum
variator