Armfield Instruction Manual
14
Peristaltic Pumps A & B
Two identical peristaltic pumps are located on the front of the plinth. These can take
a wide range of silicone tubing, examples of which are included with the apparatus.
The pumps may be operated individually or in parallel according to the control
exercise. Pump A is located on the left-hand side, Pump B is located on the right-
hand side.
Differential Pressure Sensors P1, P2 & P3
Three piezoelectric differential pressure sensors are located within the bottom
section of the manifold block. Each is connected to read the differential pressure
across an orifice in the top section of the block. P1 and P2 are small orifices used to
measure the small flowrates associated with the optional PCT41. P3 is a large orifice
for use with PCT40.
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