fisair DFRA Series, User Manual

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User Manual DFRA Series |
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P1
9.10 Differential pressure sensor:
The differential pressure sensor is located on the dry air fan module. Before starting the
equipment, the pipes connected to this sensor must be correctly configured. This
arrangement depends on the pressure differential to be measured, either between the
plenum and suction side of the fan (pressure difference for calculating volume flow), or
between drive plenum and P.atm (Pa). The following figure shows the sockets to which
each tube must be connected:
Figure 16: Differential sensor
The corresponding connections for measuring flow volume or drive pressure are shown
next to the switch position:
Flow rate Drive pressure
Figure 17: Tube connections to the sensor
P
+
P
-
P
+
VACUUM DRIVE
P1
P2
P2 =
Patm