PCA 2 1000D OPERATING INSTRUCTION25055055

Any other use above and beyond this will be considered as im-
proper use. The manufacturer will not be liable for any damage
resulting from this. The company using it bears the sole risk.
3 Product overview
3.1 Function
Sensor-control module with differential-pressure sensors in proven
ceramic-cantilever technology for climate and clean-room applica-
tion.
The pressure range goes from 0...1000 Pa (0...4.0 in.wg), four
measuring ranges are programmable.
Function when the pressure at the “Plus”- connection exceeds the
pressure at the “Minus”- connection.
Depending on the programmed Mode the device can be used
as sensor or as a control module for pressure or volume flow.
•
For operation as pressure sensor the device supplies an output
signal (0...10 V) proportional to the measuring range.
•
For operation as volume flow sensor the device supplies an
output signal (0...10 V) proportional to the air volume measuring
range (see INFO / Range qV). Function in combination with
centrifugal fans and measuring device in the inlet ring. The
controller calculates the volume flow of the fan from the “K-
Factor” and pressure differential between the suction side and
the inlet duct.
•
For operation as control module for pressure or volume flow the
purpose of the device is to reach and maintain the target value
set. To accomplish this, the measured actual value (sensor
value) is compared with the adjusted target value, and the con-
trolled value is deduced from this. Controlled output (0...10 V)
e.g. for activating a speed controller for fans or an EC-fan
directly.
Operating Instructions PCA-2 1000D2 Product overview
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