Arthur Grillo DPC200 User manual

Installation and operation manual
DPC200 -
DIFFERENTIAL PRESSURE CONTROLLER
Low pressure sensor with PI-control-mode
Doc.-no.: DPC200_04_EBM_US Issue: 06/2018

2Doc.-no.: DPC200_04_EBM_US Issue: 06/2018
Manufacturer:
Phone:
Fax:
E-Mail:
Website:
Issue:
Doc.-no.:
Arthur Grillo GmbH
+49 21 02 - 47 10 22
+49 21 02 - 47 58 82
[email protected]
www.grillo-messgeraete.de
06/2018
DPC200_004_EBM_US
This documentation including all parts is protected by copyright.Any utili-
sation or modication 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, microlming and storage and processing in electronic systems.

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Doc.-no.: DPC200_04_EBM_US Issue: 06/2018
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
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 Adjustable parameters
5.4 Function alarm output
6 Maintenance
7 Warranty
8 Troubleshooting
9 Disposal
10 Specications     
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
12
12
12
13
14

4Doc.-no.: DPC200_04_EBM_US Issue: 06/2018
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.
Identication 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 specically 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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2. Product description
The differential pressure controller DPC200 measures low pressure of inert gases, par-
ticularly 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 ebm-papst continuously variable speed fans. It can be oper-
ated solely as a sensor (measuring mode) or closed loop controller for pressure / volu-
metric 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 inuence 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 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 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...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
measurement ran
g
e:
supply voltage:
signal output:
part-no.: 2572 serial-no.: 15. 4700 IP54
US(1+ 2-) = 10 ... 30 Vdc / 24 Vac
Uout (3+ 4-) = 0 ... 10 V
pressure controller
500 Pa
DPC200-EP500
Arthur Grillo GmbH • Ratingen Made in Germany
1. Product name
2. Measuring range
3. Supply voltage
4. Signal output
5. Serial no.
6. Manufacturer
1. 2.
3.
4.
5. 6.

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INSTALLATION
3. Installation
The differential pressure controller DPC200 is designed for wall mounting.
• The mounting surface must be solid enough and vibration-free.
• The environment has to fulll the ambient climatic conditions as given in the technical
data.
Material damage
Read the manual carefully before installation and operation
Only experienced staff may connect the device and bring it into
operation.
CAUTION
• The device is position depended.
• The DPC200 must be mounted vertically.
NOTICE
3.1 Dimensions
All dimensions in inches.
3.2 Wall mounting
1. Hold the DPC200 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.
ø0.23
ø0.12
0.18
-+
4.09449
2.12598
3.74016
2.75591

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START UP
4. Start up
4.1 Overview DPC200
1. Front cover
2. Cable gland M16 x 1.5
3. Pressure connection 1
4. Pressure connection 2
5. Cable gland M16 x 1.5
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

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OPERATION
4.4 Electrical connection
dry contact
open: Setpoint 1
close: Setpoint 2
+ 10...30 Vdc or 24 Vac (±15%) excitation
- GND (return)
1
2
3
4
5
6
7
8
+ 0...10 Vdc output
- GND (return)
∆P
Alarm output
high ohm: alarm off
low ohm: alarm on
maximum customer circuit 30 Vdc / 30 mA
DPC200
Alarm output: Open Collector
Potentialfreier Kontakt
offen: Sollwert 1
geschlossen: Sollwert 2
+ 10...30 Vdc oder 24 Vac (±15%) Versorgung
- GND
+ 0...10 Vdc Ausgang
- GND
Alarm Ausgang
hochohmig: Alarm aus
niederohmig: Alarm an
maximaler externer Stromkreis: 30 Vdc / 30 mA
1
2
3
4
5
6
7
8
∆P
DPC200
Alarm Ausgang: Open Collector
∆P
1 + Versorgung: 10...30 Vdc;
24 Vac +/-15%
2 - GND
3 + Ausgang 0...10 V
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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OPERATION
5.2 Menu structure

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OPERATION
5.3 Adjustable parameters
Parameter Selection or parameter range Default set-
ting
Unit Metric or imperial metric
Operating
mode: Measuring mode or control mode measuring mode
Parameter Differential pressure ΔP [Pa] or [InH2O]
Volume flow V [m3/h] or [cfm]
differential
pressure ΔP [Pa]
K-factor:
Volume flow calculation according to: V = k · √Δp
with: V = Volume flow in [m3/h]or [cfm]
k = flow factor, adjustment range: 1...10,000
Δp = differential pressure in [Pa]or [InH20]
Volume flow range up to 999,999 m3/h
Maximum volume flow (Vmax)
Measuring range: 50 Pa, k=10,000 Vmax = 70,710 m3/h;
Measuring range: 500 Pa, k=10,000 Vmax = 223,607 m3/h;
Measuring range: 1000 Pa, k=10,000 Vmax = 316,228 m3/h;
Measuring range: 2000 Pa, k=10,000 Vmax = 447,214 m3/h;
Measuring range: 4000 Pa, k=10,000 Vmax = 632,456 m3/h;
Measuring range: 6000 Pa, k=10,000 Vmax = 774,597 m3/h
K = 70
Limit values:
Differential pressure from 0 % up to 100 % of measuring range.
Volume flow from 0.5 % up to 100 % of measuring range, k-factor is
considered.
OFF
Nominal
values
(setpoints):
Differential pressure from 0 % up to 100 % of measuring range.
Volume flow from 0.5 % up to 100 % of measuring range, k-factor is
considered.
placeholder
1: 8888
2: 8888
Output vol-
tage: 0 … 10 V DC Uout = 10 V DC
P-gain: 0 ... 1000 P = 50
I-gain: 0 … 100 I = 3.15
Control
characteristic:
positive/(heating): Control deviation = set value – actual value
The output increases when: set value > actual value
negative/(cooling): Control deviation = actual value – set value
The output increases when: actual value > set value
positive / heating

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OPERATION
5.4 Function alarm output
The DPC200 has an open collector alarm output; depending on the operating mode the
function is different.
At the alarm event a contact between terminal no. 7 and no. 8 gets low-resistive and
can be loaded with a maximum of 30 V DC/ 30 mA. When the alarm is switched off the
contact will be high-resistive.
During alarm state in the control mode / measuring mode an exclamation point is displayed
(2nd line / 16th character).
Control mode:
In order to recognize the limits of control, the alarm output in the control mode refers to
the set maximum output voltage (MaxUout). MaxUout can be set in the menu item „output
voltage“.
In the default setting the value is set to 10 V DC.
Alarm ON: Output voltage for 12 seconds constantly greater than: 0.95 • MaxUout
Alarm OFF: Output voltage for 12 seconds constantly less than: 0.9 • MaxUout
Measuring mode:
For limit value monitoring a limit value can be entered.This value is set in the menu item
„limit switch“. The previously set parameters are taken into account (unit, parameter,
k-factor and the measuring range).
In the default setting the limits are not active. Display 2nd line: „OFF“
Alarm ON: Measurement for 12 seconds constantly greater than 1.0 • limit value
Alarm OFF: Measurement for 12 seconds constantly less than 0.95 • limit value

12 Doc.-no.: DPC200_04_EBM_US Issue: 06/2018
6. Maintenance
The DPC200 contains no wearing or consumable parts. Servicing is not required.
On request, Arthur Grillo GmbH offers an annual calibration with factory certicate.
For information, please contact:
7. Warranty
Warranty and liability claims for personal and property damage are excluded if they are
caused by one or more of the following reasons:
• Improper use of the device.
• Improper installation, commissioning, operation and maintenance of the device.
• Unauthorized modications to the device beyond the intended use.
• Disasters due to external inuences and force majeure.
8. Troubleshooting
9. Disposal
Dispose of parts so as not to endanger human health or the environment. Follow the laws
in the country of use for disposing of electronic components and devices during disposal.
Description Activity
Display does not show
anything Check electrical connection
Measurement stays zero Function test with a slight pressure increase in measu-
ring mode for differential pressure
Measuring error Perform zeroing as described in chapter 4.5.
Error remains Contact manufacturer
Arthur Grillo GmbH Phone: +49 21 02 - 47 10 22
Fax: +49 21 02 - 47 58 82
E-Mail: [email protected]
WARRANTY & SUPPORT

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SPECIFICATIONS
10. Specications
Measuring medium:
Measuring principle:
Lowest span:
Highest span:
Overpressure protection:
Static pressure:
Pressure connections:
Enclosure:
Electrical connections:
Supply voltage:
Current consumption:
Output:
Alarm output:
Display:
Mode:
Controlling algorithm:
Setpoints:
Protection class:
Ambient temperature:
Storage temperature:
Weight:
Mounting:
Interference / emission:
Inuences / limits:
Air or inert gases
Silicon diaphragm with spring and differential transformer
0...50 Pa
0...4000 Pa
0.2 bar
max. 0.2 bar
tubing 5 mm ø or 6 mm ø
UL 94 HB; Case polyamid, cover ABS
cable inlet M16x1.5, screw terminal
Electronic protection against reversed polarization
10...30 Vdc; 24 Vac (±15%)
approx. 10 mA @ 10 Vdc, approx. 12 mA @ 24 Vdc
0...10 V (Imax = 0.4 mA @ 10 Vdc, Imax = 2 mA @ 20 Vdc)
Open Collector, max. 30 V / 30 mA
LCD-Display, 2 x16 characters
Measuring mode or controlling mode
PI
2 setpoints adjustable within software,
Setpoints are selectable with oating contact input
IP 54 according EN 60529
14...122 °F
-13...140 °F
approx. 250 g
vertical, position dependence by turning of 90°: approx. 25 Pa
according EN 61000-6-2, EN 61000-6-3, CE mark
Zero error: ± 0.75 %
Sum of linearity and hysteresis
(depends on measuring range): ± 0.5 % ... ± 1 %
Temperature drift, zero point: ± 0.3 % / 10 K
Temperature drift, span: ± 0.2 % / 10 K

14 Doc.-no.: DPC200_04_EBM_US Issue: 06/2018
CE-LABELLING & ORDERING INFORMATION
10.1 CE-labelling
As an electric device the DPC200 falls within the scope of the directive 2004/108/EG
(EMV-directive). In the scope of the EMV-directive the following norms were applied:
DIN EN 61000-6-2:2006-03
Berichtigung 1:2011-06
Electromagnetic compatibility (EMC) - Part 6-2: Generic
standards - Immunity for industrial environments
DIN EN 61000-6-3:2011-09
Electromagnetic compatibility (EMC) - Part 6-3: Generic
standards - Emission standard for residential, commer-
cial and light industrial environments
You can order the Declaration of Conformity at:
Arthur Grillo GmbH
Phone: +49 21 02 - 47 10 22
Fax: +49 21 02 - 47 58 82
E-Mail: [email protected]