Arthur Grillo DPC200-EP4000 매뉴얼 - 페이지 2
{카테고리_이름} Arthur Grillo DPC200-EP4000에 대한 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Arthur Grillo DPC200-EP4000 7 페이지. Differential pressure controller
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Safety instructions
Attention! Read this instruction carefully, before you insert connect this
item. Only qualified personal who is familar with installation, construction and operating
!
of the equipment should work around these sensors.
Application
The differential pressure controller DPC200 measures low pressure of non-aggressive gases, particulary
of air.
The customer can use an analog signal (0...10V). The device offers two different settings. On the one hand
the output signal stands for a pressure proportional signal during measuring mode or volume flow square
root signal.
And on the other hand the output signal stands for a PI control signal for differential pressure during
controlling mode or volume flow during controlling mode.
This device is mainly for e.g. in air conditioning systems for fan controlling, for pressure control of rooms or
filter controlling.
Description
The to be measured differential pressure affects to both sides of a silicone diaphragm, which is displaced
against a measuring spring. The displacing of the diaphragm is converted into an electrical output signal
by a differential transformer with suitable electronics.
The DPC200 combines two functions:
Measuring mode:
The differential pressure is shown on the LCD display, and it is
given as a proportional 0...10V output signal.
Or the calculated volume flow is shown on the LCD display, and
it is given as a square root 0...10V output signal
Controlling mode:
In the device software two setpoints can be entered.
The user can switch between the setpoint via potential free contact input.
The function of the device is to reach and maintain the setpoint.
To accomplish this, the measured sensor value is compared
with the activated setpoint, and the output signal is calculated
from the difference.
The PI controlling output signal is given as a 0...10V signal e.g.
for activating directly a fan.
Additional adjustments are:
Maximum output voltage to limit the PI controlling signal.
P- and I- parameter to adjust the control.
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