Arthur Grillo DPC200-AC Manuel utilisateur
Installation and operation manual
DPC200-AC
DIFFERENTIAL PRESSURE CONTROLLER
Low pressure with PI-control-mode
Doc.-no.: DPC200-AC_01_UK Issue: 07/2019
2Doc.-no.: DPC200-AC_01_EN Issue: 07/2019
Manufacturer:
Phone:
Fax:
E-mail:
Website:
Issue:
Doc.-no.:
Arthur Grillo GmbH
Am Sandbach 7
40878 Ratingen
0 21 02 - 47 10 22
0 21 02 - 47 58 82
www.grillo-messgeraete.de
www.sensor-store.de
07/2019
DPC200-AC_001_EN
This documentation including all parts is protected by copyright.Any utili-
sation or modication other than permissible under the strict limitations of
copyright law is prohibited and liable to prosecution without the approval
of the Arthur Grillo GmbH.This applies in particular to duplications, trans-
lations, microlming and storage and processing in electronic systems.
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Doc.-no.: DPC200-AC_01_EN Issue: 07/2019
TABLE OF CONTENT
Table of content
1 General safety instructions
1.1 Signal words for safety instructions
1.2 Used pictograms and symbols
1.3 General notes
2 Product description
2.1 Type plate
2.2 Intended use
2.3 Functional description
3 Installation
3.1 Dimensions
3.2 Wall mounting
4 Start up
4.1 Overview DPC200-AC
4.2 Schematic view inside
4.3 Pressure connections
4.4 Electrical connection
4.5 Zero adjustment
5 Operation
5.1 Start menu
5.2 Menu structure
5.3 Measuring mode
5.4 Control mode
5.5 Adjustable parameters
5.6 Threshold calculation
5.7 Function alarm output
6 Maintenance
7 Warranty
8 Troubleshooting
9 Disposal
10 Specications
10.1 CE-labelling
04
04
04
04
05
05
05
05
06
06
06
07
07
07
07
08
08
08
08
09
10
11
12
13
13
13
14
14
14
15
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4Doc.-no.: DPC200-AC_01_EN Issue: 07/2019
GENERAL SAFETY INSTRUCTIONS
1. General safety instructions
1.1 Signal words for safety instructions
The safety instructions in this operation manual are designed to prevent hazards.They can
be found in the operation manual before an operation / task / activity is described, which
can entail a possible hazard.
Identication of a hazard with a low risk, which can lead to material
damage or minor or moderate bodily injuries.
CAUTION
1.2 Used pictograms and symbols
In this manual the following symbols are used:
General hazard symbol (dan-
ger, warning, caution)
Signal word for important information regarding the product, which
needs to be specically pointed out.
NOTICE
Hazard word Type of hazard
Hazard source
Hazard prevention
1.3 General notes
This manual contains information for installation and operation of
the pressure controller and is exclusively for the operator and ex-
pert staff. The guidelines in this manual will help to avoid danger
and downtime.
NOTICE
General information
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Doc.-no.: DPC200-AC_01_EN Issue: 07/2019
2. Product description
The differential pressure controller DPC200-AC measures low pressure of inert gases,
particularly of air.
2.1 Type plate
2.2 Intended use
This device is primarily intended for use with air conditioning systems, room pressure
control or lter control with continuously variable speed fans. It can be operated solely as
a sensor (measuring mode) or closed loop controller for pressure / volumetric ow rate
control. As analog 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 sensor, the output signal is proportional to the
measured pressure.
2. As a volume ow sensor the device outputs a square root signal.
3. 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 pressure
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 DPC200-AC provides two function options:
1. On the one hand it is used as a measuring device.In the measuring mode the differential
pressure is shown on the display, and a proportional 0...10V DC output signal is provided.
2. Besides the measuring mode the DPC200-AC also can be operated in a control mode.
Two setpoints can be adjusted in the device and can be selected with the potential
free contact input. The PI-Algorithm matches the measured differential pressure with
the setpoint and operates the control variable so that a constant pressure results.The
control variable is given as a 0...10V DC output signal.
Instead of the quantity ‘differential pressure’ also the quantity ‘volume ow’ can be used
for measuring and for control.
differen gases
1. Product name
2. Supply voltage
3. Signal output
4. Measuring range
5. Serial no.
6. Manufacturer
1.
2.
3.
4.
5.
6.
6Doc.-no.: DPC200-AC_01_EN Issue: 07/2019
INSTALLATION
3. Installation
The differential pressure controller DPC200-AC is designed for wall mounting.
• The mounting surface must be solid enough and vibration-free.
• The environment has to fulll the ambient climatic conditions as given in the technical
data.
Material damage
Read the manual carefully before installation and operation
Only experienced stuff may connect the device and bring it into
operation.
CAUTION
3.1 Dimensions
All dimensions in mm.
ø6
ø5
M16x1,5
4,5
-+
104
54
95
70
• The device is position depended.
• The DPC200-AC must be mounted vertically.
NOTICE
3.2 Wall mounting
1. Hold the DPC200-AC against the wall. Mark the mounting holes.
2. Drill mounting holes for properly sized screws.
3. Put the screws through the housing mounting holes.
4. Tighten screws.
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Doc.-no.: DPC200-AC_01_EN Issue: 07/2019
START UP
4. Start up
4.1 Overview DPC200-AC
1. Front cover
2. Cable gland
3. Pressure connection 1
4. Pressure connection 2
5. Cable gland
1.
2.
3.
4. 5.
4.2 Schematic view inside
Button T1 and T2 serve for the operation of the menu
4.3 Pressure connections
Connect all pressure connections properly with plastic tubing (inner diameter 5 or 6mm).
Button T1 Button T2
8Doc.-no.: DPC200-AC_01_EN Issue: 07/2019
OPERATION
4.4 Electrical connection
1. Unscrew screws of the front cover.
2. Open front cover.
3. Use M16 cable glands for connecting wiring to terminals.
4.5 Zero adjustment
The output signal offset can be zeroed from the outside with a small bar magnet. Do not
use buttons T1 or T2.
Adjustment:
• Remove the tubing from the pressure
connections.
• Hold the bar magnet (N/S) as shown here
to the zero point adjustment for a short
period of time to activate an internal reed
switch.
The new zero point will be displayed and
stored.
5. Operation
5.1 Start menu
For operating the menu, unscrew the front cover to reach buttons T1 and T2.
N S
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Doc.-no.: DPC200-AC_01_EN Issue: 07/2019
OPERATION
5.2 Menu structure
10 Doc.-no.: DPC200-AC_01_EN Issue: 07/2019
OPERATION
5.3 Measuring mode
Display Action
ΔPMeasurement
200 Pa
Start menu: Press button T1 approx. two seconds
menu Press button T2 to get to the next menu item
unit metric
Press button T1 to switch between:
metric <=> imperial
Press button T2 to get to the next menu item
operating mode
control mode
Press button T1 to switch between:
measuring mode <=> control mode
Press button T2 to get to the next menu item
parameter
diff. pressure
Press button T1 to switch between:
diff. pressure <=> volume flow
Press button T2 to get to the next menu item
If selected parameter = diff. pressure
limit switch
150 Pa
Button T1: reset value
Button T2: set value
Button T1: conrm value, display ashes once
Press button T2 to get to the next menu item
backandconrm Press button T1 to leave the menu
Press button T2 to stay in the menu
Ifselectedparameter=volumeow
than follows the additional input for the k-factor
fan k-factor
k = 70
Button T1: reset value
Button T2: set value
Button T1: conrm value, display ashes once
Press button T2 to get to the next menu item
limit switch
300 m³/h
Button T1: reset value
Button T2: set value
Button T1: confirm value, display flashes once
Press button T2 to get to the next menu item
backandconrm Press button T1 to leave the menu
Press button T2 to stay in the menu
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