Arthur Grillo DPC310 User manual

Installation and operation manual
DPC310 -
DIFFERENTIAL PRESSURE CONTROLLER
Doc.-no.: DPC310_01_EN Issue: 01/2018
Low pressure multi range sensor
with PI-control mode and multifunctional input and output

2Doc.-no.: DPC310_01_EN Issue: 01/2018
Manufacturer:
Phone:
Fax:
E-Mail:
Website:
Issue:
Doc.-no.:
Arthur Grillo GmbH
Am Sandbach 7
40878 Ratingen
+49 21 02 - 47 10 22
+49 21 02 - 47 58 82
[email protected]
www.grillo-messgeraete.de
www.sensor-store.de
01/2018
DPC310_001_EN
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.

3
Doc.-no.: DPC310_01_EN Issue: 01/2018
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 DPC310
4.2 Electrical connection Schematic view inside
4.3 Pressure connections
4.4 Schematic view inside
4.5 Zero adjustment
5 Operation
5.1 How to congure the DPC310
5.1.1 Measuring mode
5.1.2 Control mode
5.2 Adjustable parameters
5.3 Threshold calculation
5.4 Function alarm output
5.4.1 Control mode
5.4.2 Measuring mode
5.5 Extern 0...10 V dc input
5.5.1 Extern setpoint via 10 V input
5.5.2 Temperatur controlled setpoint
5.6 Measuring range selection
6 Maintenance
7 Warranty
8 Troubleshooting
9 Disposal
10 Specications
10.1 CE-labelling
11 Ordering information
04
04
04
04
05
05
05
05
06
06
06
07
07
07
07
08
08
08
08
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4Doc.-no.: DPC310_01_EN Issue: 01/2018
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
(danger, 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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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 inuence 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
1.
2.
3.
4.
5. 6.

6Doc.-no.: DPC310_01_EN Issue: 01/2018
INSTALLATION
3. Installation
The differential pressure controller DPC310 is designed for wall mounting.
• The mounting surface must be solid enough and vibration-free.
• The environment has to full 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 DPC310 must be mounted vertically.
NOTICE
3.1 Dimensions
All dimensions in mm.
3.2 Wall mounting
1. Hold the DPC310 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.
ø6
ø5
M16x1,5
4,5
-+
104
54 95
70

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Doc.-no.: DPC310_01_EN Issue: 01/2018
START UP
4. Start up
4.1 Overview DPC310
1. Front cover
2. Cable gland
3. Pressure connection 1
4. Pressure connection 2
5. Cable gland
1.
2.
3.
4. 5.
4.2 Electrical connection
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
9
10
ΔP
DPC310
Alarm Ausgang: Open Collector
Elektrischer Anschluss
+ 0...10 Vdc Eingang
- GND
dry contact
open: Setpoint 1
close: Setpoint 2
+ 10...30 Vdc or 24 Vac (±15%) electronic
excitation
- GND
+ 0...10 Vdc output
- GND
alarm output
maximum customer circuit 30 Vdc / 30 mA
1
2
3
4
5
6
7
8
9
10
ΔP
DPC310
alarm output: open collector
+ 0...10 Vdc input
- GND
1. Unscrew screws of the front cover.
2. Open front cover.
3. Use M16 cable glands for connecting wiring to terminals.
4.3 Pressure connections
Connect all pressure connections properly with plastic tubing (inner diameter 5 or 6mm).

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OPERATION

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OPERATION

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OPERATION

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OPERATION
5.2 Adjustable parameters
Parameter Selection or parameter range Default setting
Unit Pa and m³/h or InH20 and cfm Pa and m³/h
Measuring
range:
DPC310-200 (Part-no: 2542)
0...200 Pa, 0...150 Pa, 0...100 Pa, 0...50 Pa
DPC310-1000 (Part-no: 2543)
0...1000 Pa, 0...750 Pa, 0...500 Pa, 0...250 Pa
DPC310-6000 (Part-no: 2544)
0...6000 Pa, 0...4000 Pa, 0...3000 Pa, 0...200 Pa
0...200 Pa
0...1000 Pa
0...6000 Pa
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]
Characteristic Characteristic curve linear or square root linear
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 display indication up to 999999 [m³/h or cfm]
in measuring mode or control mode
K = 70
Limit switch:
Differential pressure from 0 % up to 100 % of measuring range.
Volume flow from 2 % up to 100 % of measuring range, k-factor is
considered.
OFF
Alarm delay
time:
switching delay time adjustment range:
1...60 seconds or 2....15 minutes 10 s
Switching
logic: switching logic MIN or MAX MAX
Contact logic: contact logic active high or active low active high
Setpoints:
differential pressure from 0 % up to 100 % of measuring range
volume ow from 2 % up to 100 % of measuring range, k-factor is
considered
Set 1 = 8888
Set 2 = 8888
Set 1 = 8888
Set 2 = 8888
Output
voltage: 0…10.0 V DC Uout = 10.0 V DC
P-gain: 0...1000 P = 50
I-gain: 0…100.00 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
input function
• OFF - no function of 0...10 Vdc input
• extern setpoint - 0...10V dc input is converted into setpoint
1 according to set measuring range and setting of parameter
(ΔP/V) and k-factor
• temp ctrl setp - 0...10 V dc input is converted into tempera-
ture (-30.0...+70.0°C) for setpoint compensation
OFF

14 Doc.-no.: DPC310_01_EN Issue: 01/2018
5.3 Threshold calculation
Exampel:Threshold calculation
The set limit value must be between minimum and maximum ow.
As reference device we choose DPC310 with a measuring range of 0...1000 Pa.
The limit value calculation formula: V = √ΔP × k
Given values: Measuring range =0...1000 Pa; k-Factor (k) = 116; Limit value (V) = 1200m3/h
It follows: ΔP= (V / k)2 = (1200 / 116)2= 107 Pa > 20 Pa = 2% of the measuring range
Minimal ow: V_min = √(0,02 x 1000) x 116 = 519 m3/h
Maximal ow: V_max = √(1000) x 116 = 3668 m3/h
Result: The limit value of 1200 m3/h is betweenV_min and V_max and adjustable by
our DPC310 (0...1000 Pa).
5.4 Function alarm output
The DPC310 has an open collector alarm output (terminal 7+ 8-); depending on the op-
erating mode the function ist different.
When an alarm occurs, an exclamation mark (!) indicates the alarm state (2nd
line / 16th character). The open collector output has two different states:
High resistive to disable an external circuit
Low resistance, to connect an external circuit with maximum load of 30 Vdc / 30 mA
5.4.1 Control mode:
In order to recognize the limits of control, the alarm output in control mode refers to set
maximum output voltage (maxUout). MaxUout can be set in menu item „output voltage“.
The device requires a minimum pressure to display a value.
Minimum pressure = 2% of the product mesuring range
PRESSURE < 2% measuring range = Display shows 0 m3/h
Minimal ow: V_min=√(0,02 x measuring range) x k
Maximal ow: V_max=√(measuring range) x k
HINWEIS
Parameter Selection or parameter range Default setting
input temp t1 -30.0...+70.0 °C if t > t1, setpoint is not changed 70.0 °C
input temp t2 -30.0...+70.0 °C if t < t2, setpoint = compensated setpoint -30.0 °C
comp.
setpoint
setpoint at maximum temperature compensation
differential pressure from 0 % up to 100 % of measuring range
volume ow from 2 % up to 100 % of measuring range, k-factor is
considered
Set 1 = 8888
Set 2 = 8888
Set 1 = 8888
Set 2 = 8888

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Doc.-no.: DPC310_01_EN Issue: 01/2018
The alarm delay time can also be set in the menu.
Alarm ON:
Alarm OFF:
Alarm ON = low resitance, Alarm OFF = high resistance
Output voltage steadily greater than: 0.95 • maxUout for set alarm delay time
Output voltage steadily less than: 0.9 • maxUout for set alarm delay time
5.4.2 Measuring mode:
For limit value monitoring,a limit value can be entered under the menu item “limit switch”.
The previously set parameters are taken into account (unit, measured variable,k-factor and
the measuring range). In the basic state, the limit values are not active, and the menu item
“limit switch” shows “OFF” in the second line.
Three menu items, which inuence the switching behavior of the open collector output,
follow the „limit switch“ menu item:
1.“alarm delay time” with this menu item the switching delay time can be set.The setting
range is 1...60 s or 2...15 min. In the basic state, this value is set to 10 seconds
2.“switching logic” here you have the possibility to set the limit values to MAX or MIN.At
MAX, an alarm is triggered, when the measured value exceeds the limit value; at MIN, the
alarm is triggered when the limit value is exceeded.
3.“Contact logic” the rest state or the switching state of the open collector output can be
set differently.“Active high” means that when an alarm occurs, the open collector output
becomes low-impedance.“Active low” means that the alarm switches the open collector
output high-impedance
The following switching pattern can be summarized:
switching
logic
contact
logic pressure alarm output display
MAX active
high
ΔP > limit value alarm ON, low resistance !
ΔP < limit value alarm OFF, high resistance
MAX active
low
ΔP > limit value alarm ON, high resistance !
ΔP < limit value alarm OFF, low resistance
MIN active
high
ΔP > limit value alarm OFF, high resistance
ΔP < limit value alarm ON, low resistance !
MIN active
low
ΔP > limit value alarm OFF, low resistance
ΔP < limit value alarm ON, high resistance !

16 Doc.-no.: DPC310_01_EN Issue: 01/2018
5.5 Extern 0...10 V dc input
All DPC310 have an additional 0...10 V dc input (terminal 5+ 6-). On the one hand these
input can be used for extern setpoint input e.g. for initialization or for application of dyna-
mic setpoints in the installed state, without having to manually operate the device menu.
On the other side,anArthur Grillo temperature sensor can be connected to these terminals.
As a result, the setpoint can be compensated temperature-dependent.
5.5.1 Extern setpoint via 10 V input
Based on the set measuring range,the microcontroller calculates the actual external setpoint.
This applies to both the pressure also the volume ow rate. Changes of the setpoint are
shown immediately on the display. If the input signal remains stable for about 3 seconds,
the current value is stored in the EEPROM. The display then ashes once. After saving, the
input remains locked for a short time with the purpose of not detecting any unexpected
voltages as new setpoints.
To keep the input signal stable for at least ± 0.1V, the signal range is divided into 50 incre-
ments of ± 0.2V each. For a measuring range of 500 Pa, the 50 steps correspond to 10 Pa
per 0.2 V.
0 V at the input is not detected as a 0 Pa setpoint, but rather ignored.As a result, no con-
stant input signal is required, whereby the device can be initialized once, and used the set
value from now on.
The extern setpoint value can be reset. When the menu item ‘input function’ is set to
‘extern setpoint’ and the next menu item shows ‘setpoint 1’ = ‘extern setpoint’ with hold-
ing of button T1, the value will set to zero.The following menu item „compensated setp“
corresponds to the setpoint value for the
The output is subject to the following logic with regard to hysteresis and the set
switching delay time:
MAX
switching
logic:
Alarm ON, low resistance
• if ΔP > limit value for set switching delay time
Alarm OFF, high resistance
• if ΔP < 0,95 x limit value for set switching delay time
MIN
switching
logic:
Alarm ON, low resistance
• if ΔP < limit value for set switching delay time
Alarm OFF, high resistance
• if ΔP > 1,05 x limit value for set switching delay time

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Doc.-no.: DPC310_01_EN Issue: 01/2018
5.5.2 Temperatur controlled setpoint
For a temperature-compensated setpoint, an additional temperature sensor is required.
For example, an Arthur Grillo MINI903L with a measuring range of -30...+70° C. These
temperature sensors are available in different versions and can be manufactured individually
for specic applications.
All needed parameters are set in the DPC310, and the temperature ist displayed in the
rst display row.
If the menu item ‚input function‘ is set to ‚temp ctrl setp‘, the next step is the input of
temperature t1.This is the starting value of the compensation.
The next input, temperature t2 corresponds to the nal value of the compensation.
The following menu item „compensated setp“ corresponds to the setpoint value for the
full compensation.
Following states are possible:
• tmess > t1:The setpoint is not changed.
• tmess < t2:The maximum compensation is reached, and the setpoint is equal to the set
value for compensated setpoint.
• t1< tmess < t2:The microcontroller calculates a linear context between all parameters,
and the setpoint is reduced accordingly.
Following formula is used:
setpoint
comp
=(
∣
t
2
∣
+ t
mess
)
(
t
1
− t
2
)
• ( setpoint − compensated setpoint )+ compensated setpoint
ΔP/Pa
t /°C
setpoint
compensated
setpoint
t2t1
setpointcomp
setpoint
comp
=(
∣
t
2
∣
+t
mess
)
(t
1
−t
2
)•(setpoint−compensated setpoint)+compensated setpoint

18 Doc.-no.: DPC310_01_EN Issue: 01/2018
OPERATION
Start value of compensation
End value of compensation
Temperature reading
Result of compensation, is used for current control
Set value in menu for setpoint 1 / 2
Set value in menu for ‘compensated setp’
with:
t2 =
t1 =
tmess =
setpointcomp =
setpoint =
compensated setpoint =
5.6 Measuring range selection
The devices of the DPC310 series have each four adjustable measuring ranges, and are
available in three measuring groups.
Four preset measuring ranges in one device can be switched over in the menu.
To achieve this, the device must be located in menu at menu item ‚measuring range‘.The
measuring ranges can be switched with keyT1.The displayed value is then used and stored
in the EEPROM.All other entries now refer to this value.
Differential pressure controller DPC310-200:
Measuring range 1: 0 ... 200 Pa or 0 ... 0,8 InH2O
Measuring range 2: 0 ... 150 Pa or 0 ... 0,6 InH2O
Measuring range 3: 0 ... 100 Pa or 0 ... 0,4 InH2O
Measuring range 4: 0 ... 50 Pa or 0 ... 0,2 InH2O
Differential pressure controller DPC310-1000:
Measuring range 1: 0 ... 1000 Pa or 0 ... 4.0 InH2O
Measuring range 2: 0 ... 750 Pa or 0 ... 3.0 InH2O
Measuring range 3: 0 ... 500 Pa or 0 ... 2.0 InH2O
Measuring range 4: 0 ... 250 Pa or 0 ... 1.0 InH2O
Differential pressure controller DPC310-6000:
Measuring range 1: 0 ... 6000 Pa or 0 ... 24.0 InH2O
Measuring range 2: 0 ... 4000 Pa or 0 ... 16.0 InH2O
Measuring range 3: 0 ... 3000 Pa or 0 ... 12.0 InH2O
Measuring range 4: 0 ... 2000 Pa or 0 ... 8.0 InH2O

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Doc.-no.: DPC310_01_EN Issue: 01/2018
OPERATION
6. Maintenance
The DPC310 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
Displays shows: ! Device is in alarm state, please see chapter 5.4
Arthur Grillo GmbH Phone: +49 21 02 - 47 10 22
Am Sandbach 7 Fax: +49 21 02 - 47 58 82
40878 Ratingen E-Mail: [email protected]

20 Doc.-no.: DPC310_01_EN Issue: 01/2018
WARRANTY & SUPPORT
10. Specications
Measuring medium:
Measuring principle:
Lowest span:
Highest span:
Overpressure protection:
Static pressure:
Pressure connections:
Enclosure:
Electrical connections:
Supply voltage:
Current consumption:
Signal output:
Alarm output:
Signal input:
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...6000 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. 8 mA @ 10 Vdc, approx. 10 mA @ 24 Vdc
0...10 V
10 Vdc: Imax = 0,5 mA, Rmax = 20 kΩ
24 Vdc: Imax = 4,0 mA, Rmax = 2,5 kΩ
Open Collector, max. 30 V / 30 mA
0...10 V, multifunctional input
extern setpoint: 0...10 V input is related to measuring range
temp. compensated setpoint: 0...10 V input is related to
-30,0...+70,0°C
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
-10...50 °C
-25...60 °C
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): ± 1 %
Temperature drift, zero point: ± 0.3 % / 10 K
Temperature drift, span: ± 0.2 % / 10 K