Aalborg DPC User manual

OPERATING MANUAL
Aalborg®DPC
Digital Mass Flow Controllers
Technical Data Sheet No. TD-DPC-0F Date of Issue: October 2020

Aalborg® is a registered trademark of Aalborg® Instruments & Controls.
NOTE: Aalborg® reserves the right to change designs and dimensions at its sole
Discretion at any time without notice. For certied dimensions please contact Aalborg®.

TABLE OF CONTENTS
1. Unpacking the DPC Mass Flow Controller.......................................
1.1 Inspect Package for External Damage....................................................
1.2 Unpack the Mass Flow Controller..........................................................
1.3 Returning Merchandise for Repair.........................................................
2. INSTALLATION........................................................................
2.1 Safety Instructions.................................................................................
2.2 Primary Gas Connections..........................................................................
2.3 Pressure Requirements.........................................................................
2.3.1 DPC 07/17/37/47/57/67/77 Pressure Requirements.......................
2.3.2 DPC04/14 "BREEZE" low differential pressure models......................
2.4 Mounting.................................................................................................
3. ELECTRICAL CONNECTIONS.......................................................
3.1 Power Supply Connections.....................................................................
3.2 Analog Set Point Input Signals Connections..........................................
3.3 Analog Output Signals Connections......................................................
3.4 Digital Communication Interface Connections.......................................
4. PRINCIPLE OF OPERATION........................................................
5. SPECIFICATIONS...................................................................
5.1 CE Compliance.......................................................................................
5.2 DPC Accessories...................................................................................
6. OPERATING INSTRUCTIONS......................................................
6.1 Preparation and Power Up.....................................................................
6.2 Swamping Condition...............................................................................
6.3 Instrument Process Information (PI) Screens........................................
6.4 Local User Interface Menu Structure......................................................
6.4.1 Parameter Entry................................................................................
6.4.2 Submenu “Change PP Password”...................................................
6.4.3 Instrument Set Point and Valve Control...........................................
6.4.4 Submenu "Control PID Parameters".................................................
6.4.5 Submenu “Device Information”........................................................
6.4.6 Submenu “Units of Measure”...........................................................
6.4.7 Submenu “User-Defined Units”........................................................
6.4.8 Submenu “Select Gas”....................................................................
6.4.9 Submenu “User-Defined Mixture”...................................................
6.4.10 Submenu “Gas Flow Alarm”...........................................................
6.4.11 Submenu “Gas Pressure Alarm”...................................................
6.4.12 Submenu “Gas Temperature Alarm”...............................................
6.4.13 Totalizers Settings..........................................................................
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6.4.14 Submenu “Pulse Output”.............................................................
6.4.15 General Settings..........................................................................
6.4.15.1 Valve Parameters......................................................................
6.4.15.2 STP/NTP Conditions..................................................................
6.4.15.3 Display and Process Information (PI) Screens..........................
6.4.15.4 Submenu “Communication Port Settings”................................
6.4.15.5 Submenu “Modbus Interface” (optional)...............................
6.4.15.6 Relay Assignment..................................................................
6.4.15.7 Analog Output Configuration..................................................
6.4.15.8 Analog Input Configuration....................................................
6.4.15.9 Status LED Settings................................................................
6.4.15.10 Signal Conditioner Settings.................................................
6.4.15.11 Program Set Point................................................................
6.4.16 Sensor Zero Calibration.................................................................
6.4.16.1 DP Sensor Zero Calibration..................................................
6.4.16.2 Start AP Auto Tare..................................................................
6.4.17 Submenu “Alarms and Diagnostic”..............................................
6.4.17.1 Alarm Event Register..............................................................
6.4.17.2 Diagnostic Events Register.....................................................
6.4.17.3 Sensors ADC Reading (read only)..........................................
6.4.17.4 Temperature Sensors Diagnostic (read only)..........................
6.4.17.5 Analog Output & PO Queue Diagnostic (read only)...............
6.4.17.6 Solenoid Valve Parameters Diagnostic (read only)................
6.4.17.7 Reference Voltage & DSP Calculation Diagnostic .................
6.5 Multi-Functional Push-Button Operation...............................................
7. MAINTENANCE.......................................................................
7.1 General...............................................................................................
7.2 Cleaning.............................................................................................
8. RECALIBRATION...................................................................
9. RS485/RS232 SOFTWARE INTERFACE COMMANDS.........................
9.1 General............................................................................................
9.2 Commands Structure......................................................................
10. TROUBLESHOOTING................................................................
10.1 CommonConditions.............................................................................
10.2 Troubleshooting Guide........................................................................
10.3 Technical Assistance..........................................................................
Appendix I: Component Diagram.....................................................................
Appendix II: Dimensional Drawings.................................................................
Appendix III: Warranty.......................................................................................
Appendix IV: Index of Figures...........................................................................
Appendix V: Index of Tables.............................................................................
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1
1. UNPACKING THE DPC MASS FLOW METER
1.1 Inspect Package for External Damage
Your DPC Mass Flow Controller was carefully packed in a sturdy cardboard carton, with
anti-static cushioning materials to withstand shipping shock. Upon receipt, inspect the
package for possible external damage. If the unopened package is damaged, contact the
shipping company immediately to make a report.
1.2 Unpack the Mass Flow Meter
Open the carton carefully from the top and inspect for any sign of concealed shipping dam-
age. In addition to contacting the shipping carrier please forward a copy of any damage
report to your distributor or Aalborg®directly.
When unpacking the instrument please make sure that you have all the items indicated on
the Packing List. Please report any shortages promptly.
1.3 Returning Merchandise for Repair
Please contact the customer service representative of your distributor or Aalborg®if you
purchased your Mass Flow Meter directly, and request a Return Authorization Number
(RAN). Equipment returned without an RAN will not be accepted. Aalborg®reserves the
right to charge a fee to the customer for equipment returned under warranty claims if the
instruments are tested to be free from warrantied defects. Shipping charges are borne by the
customer. Meters returned “collect” will not be accepted!
It is mandatory that any equipment returned for service be purged of any hazardous con-
tents including, but not limited to, toxic, infectious, corrosive or radioactive material.
No work shall be performed on a returned product unless the customer submits a fully
executed and signed SAFETY CERTIFICATE. Contact the Service Manager at your distribu-
tor or at Aalborg to obtain this form prior to returning the product.
2. INSTALLATION
2.1 Safety Instructions
Aalborg®warranties and all other responsibilities by direct or implied
are voided if users fail to follow all instructions and procedures
described in this manual.
LIFE SUPPORT APPLICATIONS: The DPC is not designed for use in life
support applications where malfunctioning of the device may cause
personal injury. Customers using or selling this device for use in such
applications do so at their own risk and agree to be fully responsible for
any damages resulting from improper use or sale.

2

3
CAUTION Some of the IC devices used in the DPC are static-sensitive and
may be damaged by improper handling. When adjusting or servicing the
device, use of a grounded wrist strap is recommended to prevent inadvertent
damage to the integral solid-state circuitry.
2.2 Primary Gas Connections
The DFC Mass Flow Controller will not operate with liquids. Only clean, non corrosive
gases may be introduced into the instrument. If gases are contaminated, they must be
filtered to prevent the introduction of impediments to the sensor.
For more information, contact your distributor or Aalborg®.
Prior to connecting gas lines, inspect all parts of the piping system, including ferrules and
other fittings, for dust or other contaminants. Do not use pipe grease or sealant on process
connections as they can contaminate narrow laminar flow elements that may cause perma-
nent damage to the instrument.
When connecting the gas system to be controlled, be sure to observe the direction of gas flow
as indicated by the arrow on the front of the instrument.
Insert tubing into the compression fittings until the ends of the properly sized tubing sit flush
against the shoulders of the fittings. Compression fittings are to be tightened 1¼ turns
according to the manufacturer's instructions. Avoid overtightening which may seriously
damage the compression fitting.
2.3 Pressure Requirements
2.3.1 DPC 07/17/37/47/57/67/77 Pressure Requirements
Maximum operating line (common mode) pressure for DPC07/17/37/47/57/67/77 series
flow controllers is 120 PSIG (8.3 Bar). For controllers with downstream valve configuration
if the installation line pressure is more than 120 PSIG (8.3 Bar), a pressure regulator must
be installed upstream of the flow controller to bring pressure down to 120 PSIG (8.3 Bar).
CAUTION: DPC meters should not be used for monitoring oxygen gas unless
specifically cleaned and prepared for such application.
CAUTION: For DPC07/17/37/47/57/67/77 flow controllers, the maximum
common mode pressure in the instrument must not exceed 120 PSIG
(8.3 bar).Applying pressure above 120 PSIG (8.3 bar) will cause permanent
damage to the differential pressure sensor.

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CAUTION: Do not apply upstream – downstream differential pressure
exceeding 12 PSID to DPC07/17/37/47/57/67/77 models of flow controllers
when valve is in OPEN mode. Exposure to higher differential pressures may
cause permanent damage to the product.
For DPC07/17/37/47/57/67/77 controllers normally high common mode
pressure (within 120 PSIG) will not damage the differential pressure
sensor, but pressure transients (momentary pressure variations) on
upstream or downstream ports can result in permanent
sensor damage to the product.
For DPC07/17/37/47/57/67/77 controllers avoid instantaneous
application of high differential pressure by switching solenoid valve
to OPEN mode while differential pressure across upstream and down
stream of the controller is more than 12 PSID.
2.3.2 DPC04/14 "BREEZE" low differential pressure
models pressure requirements
Maximum operating line (common mode) pressure for Breeze (low differential pressure)
DPC04/14 models of flow controllers is 50 PSIG (3.44 Bar). For controllers with downstream
valve configuration if the installation line pressure is more than 50 PSIG (3.44 Bar), a pres-
sure regulator must be installed upstream of the flow controller to bring pressure down to
50 PSIG (3.44 Bar).
CAUTION: For Breeze DPC 04/14 series models the maximum common mode
pressure in the instrument must not exceed 50 PSIG (3.44 bar). Applying
pressure above 50 PSIG (3.44 bar) will cause permanent damage to the
differential pressure sensor.
For Breeze DPC04/14 models do not apply upstream – downstream differential
pressure exceeding 9.75 PSID when valve is in OPEN mode. Exposure to
higher differential pressures may cause permanent damage to the product.
For Breeze DPC04/14 models normally high common mode pressure (within
50 PSIG) will not damage the differential pressure sensor, but pressure
transients (momentary pressure variations) on upstream or downstream ports
can result in permanent sensor damage to the product.
For Breeze DPC04/14 models avoid instantaneous application of high
differential pressure by switching solenoid valve to OPEN mode while
differential pressure across upstream and downstream of the controller is
more than 9.75 PSID.
The user shall install the instrument only in process lines that meet the DPC
controller’s pressure and temperature ratings. A margin of safety should be
provided if spikes and surges exist in the process. Proper pressure relief
valves and burst plates should be installed in high pressure applications.

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CAUTION: To avoid obstructions and contamination in the sensor tube and the
narrow flow channels in the laminar flow element, the user should install the
instrument in process lines that have clean gases. Upstream particulate
filters with maximum particulate size 20µ are recommended for all
applications.
2.4 Mounting
DPC04/07/14/17/37/47/57/66/77 series Mass Flow Controllers have mounting holes with
6-32 thread (8-32 thread for DPC 57/67/77) on the bottom of the instrument body for
mounting to flat panels. See APPENDIX II for exact dimensions.
The DPC Mass Flow Controller can be mounted in any position. It is not required to maintain
straight runs of pipe upstream or downstream of the instrument. It is preferable to install
the controller in a stable environment, free of frequent and sudden temperature changes,
high moisture, and drafts.
DPC controller ports are equipped with 10-32 female thread (DPC04/07), 1/8" NPT female
thread (DPC14/17/37), 1/4" NPT female thread (DPC47), 1/2" NPT female thread (DPC57)
and 3/4" NPT female thread (DPC67/77).
3. Electrical Connections
DPC instrument is equipped with an 8 pin-MiniDIN power, analog/relay output, interface con-
nector. Table I explains the pin designations. See Figure 3 for a Pin Diagram.
PIN FUNCTION NOTE
1Solid State SPST Relay NO
(normally open) contact #1 Do not exceed SSR
maximum voltage 48 AC peak/DC and
maximum load current 400 mA.
2Solid State SPST Relay NO
(normally open) contact #2
3Analog Set Point Input (+)
(0-5Vdc, 0-10Vdc, 4-20mA)
Input Impedance: 100K (0-5, 0-10 Vdc)
250 Ohm (4-20 mA)
4Analog (0-5Vdc,0-10Vdc,4-20 mA)
Input/Output reference (-)
Common (return) for pins 3 and 6 (0-5Vdc
or 0-10 Vdc or 4-20 mA)
5 Not Assigned. Do Not Connect! Factory use only. Do Not Connect any
signals to this pin!
6Analog (0-5Vdc, 0-10Vdc or 4-20
mA) Output (+)
Output. Do not apply external voltage or
any current source. Be sure to observe
recommended load impedance.
7 Power supply, positive (+)
Power input 12 – 26 Vdc.
(DPC04/07/14/17/37/47) or 24-26Vdc
(DPC57/67/77).
8 Power supply, common (-) Power input common.
TABLE I: 8-PIN DESIGNATIONS AND NOTES

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Figure 3: DPC 8-pin mini-din connector configuration
CAUTION: 4-20 mA analog output requires at least 14 Vdc power.
CAUTION: Generally, "Mini-DIN" Connector numbering patterns are
standardized. There are, however, some connectors with nonconforming
patterns, so the numbering sequence on your mating connector may or may
not coincide with that shown in our pin configuration above. It is imperative
that you match the appropriate wires in accordance with the correct sequence
regardless of the particular numbers displayed on the mating connector.
3.1 Power Supply Connections
The AC to DC power supply requirements for DPC04/07/14/17/37/47 controllers are 12 to
26 Vdc, with maximum load current at least 350 mA (unipolar power supply), and maximum
ripple below 150 mV P-P. The AC to DC power supply requirements for DPC57/67/77
controllers are 24 to 26 Vdc, with maximum load current at least 650 mA (unipolar power
supply), and maximum ripple below 150 mV P-P.
Power can be applied to the DPC controller either through the power jack or the 8-pin Mini-
DIN connector (see Figure 1).
CAUTION: Never apply power simultaneously from both connectors, as this
may damage the instrument.
DC Power (+) --------------- pin 7 of the 8-pin Mini-DIN connector
DC Power (-) --------------- pin 8 of the 8-pin Mini-DIN connector
CAUTION: Never apply power voltage above 26Vdc. Doing so may damage the
DPC and/or cause faulty operation.

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CAUTION: Make sure power is OFF when connecting or disconnecting any
cables or wires to or from the system.
NOTE: The (+) and (-) power inputs are each protected by a 300mA
(DPC04/07/14/17/27/47) and 750mA (DPC57/67/77) (medium time-lag) reset-
table fuse. If a shorting condition or polarity reversal occurs, the fuse will cut
power to the flow controller circuit: disconnect the power to the instrument,
correct the faulty condition, and reconnect the power. The fuse will reset once
the faulty condition has been corrected.
3.2 Analog Set Point Signals Connections
CAUTION: When connecting the source signals to the input terminals, do not
exceed the rated values shown in the specifications (see Section 5). Failure
to do so might cause damage to this device or signal source equipment.
Be sure to check if the wiring and the polarity of the power supply are
correct before turning the power ON. Wiring error may cause damage or
faulty operation.
DPC series Mass Flow Controllers are equipped with calibrated 0-5Vdc, 0-10Vdc or 4-20
mA set point input signals. These linear input signals represents 0-100% of the flow con-
troller’s full scale range. The user may select the desired input analog interface type using a
local OLED/Joystick interface or via digital communication interface.
For 0-5 VDC, 0-10 VDC or 4-20 mA input signal connection:
External Input Plus (+) ------------------------- pin 3 of the 8-pin Mini-DIN connector
External lnput Minus (-) ------------------------- pin 4 of the 8-pin Mini-DIN connector
When 0-5 or 0-10 Vdc input is selected the instrument input impedance is about
100 KOhm. When 4-20 mA input is selected the instrument is functioning as current sink-
ing device with input impedance about 250 Ohm.
NOTE: The Analog interface source must be selected (see Section 6.4.15.8),
in order to control flow rate via analog input signal connections.
CAUTION: If nothing is connected to Pin 3, and the controller's set point
source is set for analog control, the instrument may generate random flow
rate values. When 0-5 or 0-10 Vdc input signals are selected as the source
of the set point, make sure Pin 3 is driven by low impedance source of the voltage.
Do not apply to Pin 3 voltages above 12 Vdc. Doing so will damage input
circuitry. Do not connect instrument input to "loop powered" signal sources,
as they usually powered with power supplies above 12 Vdc and will
damage instrument.

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3.3 Analog Output Signals Connections
CAUTION: When connecting the load to the output terminals, do not exceed
the rated values shown in the specifications (see Section 5). Failure to do so
might cause damage to this device. Be sure to check if the wiring and the
polarity of the power supply are correct before turning the power ON. Wiring
error may cause damage or faulty operation.
DPC series Mass Flow Controllers are equipped with calibrated 0-5Vdc, 0-10Vdc or 4-20
mA output signals. This linear output signal represents 0-100% of the flow controller’s
full scale range. The user may select the desired analog output interface type using a local
OLED/Joystick interface or via digital communication interface.
CAUTION: The 4-20 mA current loop output is self-powered (nonisolated,
sourcing type). Do not connect an external voltage source (for example,
current loop powered systems) to the output signals.
For 0-5 VDC, 0-10 VDC or 4-20 mA output signal connection:
External load Plus (+) --------------------------- pin 6 of the 8-pin Mini-DIN connector
External load Minus (-)--------------------------- pin 4 of the 8-pin Mini-DIN connector
CAUTION: When connecting the load to the output terminals, always check
actual analog output interface configuration. Connecting low impedance
(< 5K ) loads to the 0-5Vdc or 0-10 Vdc output may cause damage to or
faulty operation of the electronics circuitry.
NOTE: 4-20 mA analog output requires at least 14 Vdc power input.
CAUTION: When connecting the load to the output terminals, always check
actual analog output interface configuration. Connecting high impedance
(> 500 ) loads to the 4-20 mA output may cause non linear or faulty
operation of the electronics circuitry.
To eliminate the possibility of noise interference, it is recommended that you use a separate
cable entry for the DC power, digital communication interface, and analog input/output
interface signal lines.
3.4 Digital Communication Interface Connections
The digital interface operates via RS-232 or RS-485 (user-selected) and provides access to
all applicable internal configuration parameters and data.

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CAUTION: Before proceeding with communication interface connection, verify
the controller’s actual communication interface type. For devices with OLED
display, the interface type will be briefly (for about 2 seconds) displayed on
the banner screen when power is applied. If your instrument does not have
a display, the communication interface type can be identified by briefly
pressing the multi-function button and monitoring status LED response
(see Section 6.5).
Communication Settings for RS-232/RS-485 communication interface The default baud
rate is 9600 baud (user-selected; see Section 5, Specifications).
Stop bit: ............................... 1
Data bits: ............................... 8
Parity: ............................... None
Flow Control: ............................... None
RS-232 Communication Interface Connection
Crossover connection must be established:
HOST PC RS-232 RX Controller (RS-232 TX)
(pin 2 on the host PC DB9 connector) ------ pin 3 (Ring) of the 3-pin stereo jack connector (TX+)
HOST PC RS-232 TX Controller (RS-232 RX)
(pin 3 on the host PC DB9 connector) ------ pin 2 (Tip) of the 3-pin stereo jack connector (RX-)
HOST PC RS-232 SIGNAL GND Controller (Digital GND)
(pin 5 on the host PC DB9 connector) ------ pin 1 (Sleeve) of the 3-pin stereo jack connector
Each DPC ordered with RS-232 interface option is supplied with default crossover 1.5- foot
long communication cable (AALBORG P/N: CBL-A232) DB9 female to stereo 3.5 mm Plug.
If custom length cable is required, it can be assembled using the connection diagram
shown in Figure 4.

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FIGURE 4: DPC Mass Flow Controller RS-232 Communication Interface Connection
RS-485 Communication Interface Connection
The RS-485 converter/adapter must be configured for: multidrop, 2-wire, half duplex mode
(see Figure 5). The transmitter circuit must be enabled by TD or RTS (depending on which
is available on the converter/adapter). Settings for the receiver circuit should follow the
selection made for the transmitter circuit in order to eliminate echo.
RS-485 A line T(-) or R(-) ------ pin 2 on 3-pin Audio-connector, middle section or "tip"
DPC (RX-), (WHITE wire)
RS-485 B line T(+) or R(+) ------ pin 3 on 3-pins Audio-connector, the "ring" section DPC
(TX+), (RED wire)
RS-485 GND (if available) ------ pin 1 on 3-pin Audio-connector, the sleeve” section
DPC (GND), (Shield wire)
Each DPC ordered with RS-485 interface option is supplied with a default 3-foot
length of communication cable (AALBORG P/N: CBL- A485DP) Stereo 3.5 mm plug to
stripped wires.

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HOST PC
RS-232
RS-485
Up to 64 devices on
one RS-485 segment
Up to 2000 feet
RS-232 to RS-485
Converter
WITH RS-232
INTERFACE
NOTE: RS-232 to RS-485 Converter
has to be configured for 2 wire
half duplex system
ADDRESS: 11 ADDRESS: 12 ADDRESS: 13 ADDRESS: 14 ADDRESS: FF
RS-232
Signal GND
RS-232 TX
RS-232 RX
GND
3
2
1
J4
PHONEJACK
STEREO
1
2
3
J4
PHONEJACK
STEREO
3
2
1
J4
PHONEJACK
STEREO
1
2
3
J4
PHONEJACK
STEREO
1
2
3
J4
PHONEJACK
STEREO
RED
WHITE
SHIELD
-SLEEVE GND
-TIP RX(-)
AALBORG P/N: CBL-A485
RX(-)TX(+)GND
T(-)
T(+)
DPC#1 DPC#2 DPC#3 DPC#4 DPC#64
RING TX(+)
TX (+)
RX (-)
RX (-)
TX (+)
TX (+)
RX (-)
TX (+)
RX (-)
TX (+)
RX (-)
FIGURE 5: DPC Mass Flow Controllers RS-485 Communication Interface Connections
When the DPC device is set as the last device on the long RS-485 bus segment, the 120
bus termination resistor must be connected between the RS-485 (+) and (-) terminals
close (< 6 feet) to this device.
CAUTION: The DPC instrument offers an integrated switchable 120
termination resistor between the RS-485 (+) and (-) pins. On instruments
with a local display and joystick interface, the 120termination resistor
can be activated (enabled) using General Settings / Communication Port /
RS-485 Termination menu selection. By default, the instrument is shipped
from the factory with the RS-485 Termination mode set to Disabled.
4. PRINCIPLE OF OPERATION
The DPC flow controllers are based on the measurement of the differential pressure across
specially designed restrictor flow elements. The restrictor flow element is designed to es-
tablish laminar flow across the entire range of the instrument’s operation from 0 to 133%
of full scale range. A high accuracy and high resolution differential pressure sensor is uti-
lized to measure pressure drop across laminar flow channel, which is linearly proportional
to volumetric flow rate. To convert volumetric flow in to the mass flow, high accuracy and
high resolution absolute pressure and temperature sensors are utilized.
Based on data from the sensors and Gas Properties from the built-in data base of the instru-
ment, the micro-controller calculates Volumetric and Mass Flow, which along with Pressure
and Temperature parameters are available on the instrument display or via digital interfaces.
In addition, the Mass Flow reading is accessible via the instrument Analog interface which
can be set by user to 0-5, 0-10 Vdc or 4-20mA mode.
If custom length cable is required, it can be assembled using the connection diagram
shown in Figure 5:

12
The DPC flow controller supports multi-gas functionality which allows users on site to select
the desired measured gas using local Display/Joystick interface or digital communication
interface. See Tables X - XVIII which provide lists of supported gases.
The set point can be controlled from one of the four user selectable sources: analog, lo-
cal OLED/Joystick interface, Digital Communication Interface (RS-232/RS-485, or optional
Modbus), Programmable Table.
The DPC flow controller can display flow rate in 43 different mass flow or 15 different volu-
metric flow engineering units. Instrument parameters and functions can be programmed
locally via optional OLED/Joystick interface or remotely via the RS-232/RS-485 interface or
optional Modbus RTU interface. DPC flow controllers support various functions including
two programmable flow totalizers; low, high or range flow; temperature and pressure alarms;
automatic zero adjustment (activated via local or digital communication interface);
programmable solid state relay (SSR); programmable 0-5 Vdc, 0-10 Vdc or 4-20 mA analog
inputs and outputs; user-programmable pulse output (via SSR); and self-diagnostic alarms.
Optional local OLED readout with adjustable brightness level provides mass and volumetric
flow rate, total volume reading in currently selected engineering units, and diagnostic events
and indication.
5. SPECIFICATIONS
FLOW MEDIUM: Please note that DPC Mass Flow Controllers
are designed to work only with clean gases,
never any corrosive gas and never any liquid.
CALIBRATIONS: Performed at standard conditions (14.7 psia
[101.4 kPa] and 70 °F [21.1 °C]) unless
otherwise requested or stated.
ENVIRONMENTAL (PER IEC 664): Installation Level II; Pollution Degree II.
FLOW ACCURACY (INCLUDING LINEARITY): ±(0.5% RD + 0.2% FS) at calibration
temperature and pressure conditions
after tare.
REPEATABILITY: +0.2% of full scale.
FLOW TEMPERATURE COEFFICIENT: 0.05% of full scale/°C or better.
FLOW PRESSURE COEFFICIENT: 0.01% of full scale/psi (6.895 kPa) or better.
TYPICAL FLOW RESPONSE TIME: Default 150 ms (adjustable)1.
INSTRUMENT WARM-UP TIME: < 5 seconds.
MAXIMUM CONTROLLABLE FLOW RANGE: 125% Full Scale.
OPERATION RANGE/TURNDOWN RATIO: 0.5% to 100% Full Scale / 200:1.

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MASS REFERENCE CONDITIONS (STP):
70 °F & 14.696 PSIA
(other references available on request).
MAXIMUM INTERNAL GAS PRESSURE (STATIC):
DPC07/17/37/47/57/67/77: 120 PSIG.
DPC04/14: 50 PSIG.
MAXIMUM INSTANTANEOUS DIFFERENTIAL PRESSURE ACROSS DIFFERENTIAL
PRESSURE SENSOR: DPC07/17/37/47/57/67/77: 12 PSID.
DPC04/14: 9.75 PSID
PROOF PRESSURE: DPC07/17/37/47/57/67/77: 145 PSIG.
DPC04/14: 50 PSIG.
VALVE TYPE: Normally Closed.
VALVE MAXIMUM OPERATING PRESSURE (WITH UPSTREAM CONFIGURATION):
DPC04/07/14/17: (< 2 sL/min) - 150 PSIG
DPC17: (2 ÷ 5 sL/min) - 100 PSIG
DPC17: (5 ÷ 20 sL/min) - 50 PSIG
DPC37/47: 50 PSIG
DPC57/67/77: 50 PSIG
OPERATING TEMPERATURE: -10 to +60 ˚C (14 to 140 ˚F).
MOUNTING ATTITUDE SENSITIVITY:
None.
RELATIVE GAS HUMIDITY RANGE:
0 to 100% (Non-Condensing).
INGRESS PROTECTION: IP40.
LEAK INTEGRITY: 1 x 10-9 sccs He max to the outside environment.
OUTPUT SIGNALS: Linear 0-5 Vdc (3000 min. load impedance);
Linear 0-10 Vdc (5000 min. load impedance);
Linear 4-20 mA (550 maximum loop resistance).
Maximum noise 10mV peak to peak (for 0-5/0-10 Vdc output).
SET POINT INPUT SIGNALS: Linear 0-5 Vdc (100 K Input impedance);
Linear 0-10 Vdc (100 Kinput impedance);
Linear 4-20 mA ( 250 input impedance)
INSTRUMENT INPUT POWER:12 to 26 Vdc (DPC04/07/14/17/37/47), 24 to 26Vdc
(DPC57/67/77), 150 mV maximum peak to peak output
noise. Power consumption: 250 mA maximum for
04/07/14/17, 300 mA maximum for
DPC37/47, 650mA maximum for DPC57/67/77.

14
Circuit boards have built-in polarity reversal protection, and
a 300mA (DPC04/07/14/17) or 750 mA (DPC57/67/77)
resettable fuse provides power input protection.
DIGITAL OUTPUT SIGNALS: Standard RS-232 or RS-485 (user-selected). Optional Mod
bus over isolated RS-485 transceiver.
WETTED MATERIALS: Stainless steel, Viton®O-rings, high temperature polyamide,
alumina ceramic, epoxy, silicone, glass, gold, C36000 brass.
CAUTION: Aalborg®makes no expressed or implied guarantees of corrosion
resistance of mass flow controllers as pertains to different flow media
reacting with any components of the controllers. It is solely the customer’s
responsibility to select the model best suited for a particular gas, based on
the fluid contacting (wetted) materials offered in the different models.
INLET AND OUTLET CONNECTIONS:
DPC04/07 10-32 female thread, DPC14/17/37 1/8" NPT
female thread, DPC47 1/4" NPT female thread, DPC57 1/2"
NPT female thread, DPC67/77 3/4" NPT female thread
for user-supplied fittings.
DISPLAY: Optional 128 x 64 pixels graphic yellow OLED with Esc
button and Joystick interface. Simultaneously displays:
Mass Flow, Totalizer Volume, Pressure and Temperature or
Mass Flow, Volumetric Flow, Pressure and Temperature
(user-selectable screens).
For DPC with full scale 20 sml/min and lower or above 100 sl/min the response time may
be slightly longer.
5.1 CE Compliance
EMC Compliance with 2004/108/EC as amended. CISPR11
Emission Standard: EN61000-6-3, Group 1, Class A
Immunity Standard: EN61000-6-1, IEC EN 61000-4-2, IEC EN 61000-4-3

15
MODEL
NO.
FULL SCALE
MASS FLOW RATE
PRESSURE DROP
AT FULL SCALE
FLOW (PSID)
PROCESS
CONNECTION
DPC07 0.5 to 50 sml/min 1.25 10-32 female thread
DPC17 51 sml/min to 20 sl/min 25.0 1/8" NPT female
DPC37 21 sl/min to 50 sl/min 9.0 1/8" NPT female
DPC47 51 sl/min to 100 sl/min 15.0 1/4" NPT Female
DPC57 250 sL/min 2.5 1/2" NPT Female
DPC67 500 sL/min 6.9 3/4" NPT Female
DPC77 1000 sL/min 15.0 3/4" NPT Female
DPC (BREEZETM) LOW PRESSURE DROP [AIR]
DPC04 0.5 smL/min to 20 smL/min 0.08 10-32 female thread
DPC14 21 smL/min to 2 sL/min 0.19 1/8" NPT Female
TABLE II: DPC FLOW RANGES
FITTINGS
MODEL
NO.
FITTING
CODE DESCRIPTION
DPC 04/07 F1C5 10-32 Thread, 1/8 Tubing, Compression, 316 ss
DPC 04/07 F2C5 10-32 Thread, 1/8 Tubing, Compression,
Nickle Plated Brass
DPC 14/17 F2C2 1/8" NPT Thread, 1/8 tubing, Compression, 316 ss.
DPC 14/17 F2C4 1/8" NPT Thread, 1/4 tubing, Compression, 316 ss.
DPC 37 F4C4 1/4" NPT Thread, 1/4 Tubing, Compression, 316 ss.
DPC 47 F4C6 1/4" NPT Thread, 3/8 tubing, Compression, 316 ss.
DPC 57 F8C6 1/2" NPT Thread, 3/8 tubing, Compression, 300 series ss.
DPC 67 F8C8 1/2" NPT Thread, 1/2 tubing, Compression, 300 series ss.
DPC 77 1210-1-12-316 3/4" NPT Thread, 3/4 tubing, Compression, 300 series ss.
5.2 DPC Accessories
TABLE III: DPC ACCESSORIES

16
POWER SUPPLIES
PS-GFM-110NA-2 Power Supply, 110 V / 12 Vdc / North America
PS-GFM-110NA-4 Power Supply, 110 V / 24 Vdc / North America
PS-GFM-230EU-2 Power Supply, 220 V / 12 Vdc /Europe
PS-GFM-230EU-4 Power Supply, 220 V / 24Vdc /Europe
PS-GFM-240UK-2 Power Supply 240 V / 12 Vdc /United Kingdom
CABLES
CBL-A232
Communication Cable for DPC with RS-232 Interface 1.5 FT
3.5mm stereo audio connector with 3-wire to 9-pin female
D-connector (included with each DPC ordered with RS-232).
CBL-A485DP Communication Cable for DPC with RS-485 Interface 3 FT
3.5mm stereo audio connector with 3-wire to stripped ends.
CBL-8MINIDIN-3 Shielded cable 8-pin Min-DIN with stripped ends 3 feet long
CBL-8MINIDIN-12 Shielded cable 8-pin Min-DIN with stripped ends 12 feet long
COMMUNICATION PORT ACCESSORIES
USB-RS232 USB to RS-232 converter
USB-RS485 USB to RS-485 converter
MODBUS INTERFACE ACCESSORIES
ECS803-1 RJ45 shielded Y-adapter (Passive TAP).
TDG1026-8C RJ45 Modular Coupler.
MOD27T RJ45 Line Terminator (100 0.25 W).
JMOD4S-1 RJ45 Splitter fully shielded (5xRJ45, 1 input 4 outputs).
TRD815BL-2 Category 5E Patch Twisted Pair Cable, RJ45 / RJ45, Blue 2.0 feet.
TRD815BL-10 Category 5E Patch Twisted Pair Cable, RJ45 / RJ45, Blue 10.0 feet.
TRD815BL-25 Category 5E Patch Twisted Pair Cable, RJ45 / RJ45, Blue 25.0 feet.
TRD815BL-10 Category 5E Patch Twisted Pair Cable, RJ45 / RJ45, Blue 10.0 feet.
TRD815BL-25 Category 5E Patch Twisted Pair Cable, RJ45 / RJ45, Blue 25.0 feet
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