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Doc.-no.: DPC310_01_EN Issue: 01/2018
differential pressure controller DPC310 -200
measurement range: 0 … 200 Pa, (150-100-50)
supply voltage:
signal output:
part-no.: 2542 serial-no.: 18.101 IP54
Made in Germany
US(1+ 2-) = 10 ... 30 Vdc / 24 Vac
Uout (3+ 4-) = 0 ... 10 V
Arthur Grillo GmbH • Ratingen
2. Product description
The differential pressure controller DPC310 measures low pressure of inert gases, par-
ticularly of air.
2.1 Type plate
2.2 Intended use
This device is primarily intended to work with air conditioning systems, room pressure
controls or lter controls with variable speed fans. It can be operated solely as a sensor
(measuring mode) or closed loop controller for pressure / volumetric ow rate con-
trol. As analogue output the operator can use a signal from 0...10 V DC.
Depending on the settings the signal has different meanings:
1. If the device is used as a pressure or volume ow sensor, the analog output signal is
equivalent to the measured value.The characteristic curve can be set within the menu
(linear or square root).
2. With closed loop pressure or volume ow the output signal stands for the control
variable of the PI-control.
2.3 Functional description
A soft silicone diaphragm is used as sensor. Under the inuence of the differential pres-
sure the diaphragm displaces a measuring spring until the spring force compensates for
the pressure pushing on the diaphragm.A contactless differential transformer and suitable
electronics convert this displacement into a continuously variable output voltage signal.
The DPC310 provides two functions:
1. In measuring mode the differential pressure ist displayed,and an output signal is provided.
An additional limit switch with several options can also be used if required.
2. Besides the measuring mode the DPC310 also can be operated in a control mode.
Two setpoints can be set and selected via the potential free contact input.The PI-Al-
gorithm matches the measured differential pressure by the setpoint and manages the
control variable so that a constant pressure results.The control variable is given as a
0...10 V DC output signal.
Instead of the quantity ‘differential pressure’ also the quantity ‘volume ow’ can be used
for measuring and for control.
PRODUCT DESCRIPTION
1. Product name
2. Measuring range
3. Supply voltage
4. Signal output
5. Serial no.
6. Manufacturer
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