Ruskin DPT-IQ Instruction Manual

Air Quality Solutions
Installation & Maintenance Manual
Model: DPT-IQ
Flow Meter with Backlit Display
II-DPT-IQ-818/Replaces II-DPT-IQ-315 ALL STATED SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE OR OBLIGATION © Ruskin August 2018

Product Application........................................................................................................................................................ 2
Key Features ................................................................................................................................................................. 2
Key Benets .................................................................................................................................................................. 2
Dimensional Details....................................................................................................................................................... 3
Installation Instructions.................................................................................................................................................. 3
Wiring Connections ....................................................................................................................................................... 4
Conguration ......................................................................................................................................................... 4, 5, 6
Operation....................................................................................................................................................................... 6
Specications ................................................................................................................................................................ 7
TABLE OF CONTENTS
! WARNING
READ THESE INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING TO INSTALL, OPERATE OR SERVICE
THIS DEVICE.
THIS ACCESSORY IS TO BE INSTALLED BY A QUALIFIED SERVICE TECHNICIAN. TO AVOID UNSAT-
ISFACTORY OPERATION OR DAMAGE TO THE PRODUCT AND POSSIBLE UNSAFE CONDITIONS, IN-
CLUDING ELECTRICAL SHOCK AND FIRE, THE INSTALLATION INSTRUCTIONS PROVIDED WITH THIS
ACCESSORY MUST BE STRICTLY FOLLOWED AND THE PARTS SUPPLIED USED WITHOUT SUBSTITU-
TION. DAMAGE TO THE PRODUCT RESULTING FROM NOT FOLLOWING THE INSTRUCTIONS OR USING
UNAUTHORIZED PARTS MAY BE EXCLUDED FROM THE MANUFACTURER’S WARRANTY COVERAGE.
! WARNING
DISCONNECT ELECTRICAL POWER PRIOR TO SERVICING THIS UNIT. FAILURE TO DO SO CAN RESULT
IN ELECTRICAL SHOCK RESULTING IN PERSONAL INJURY OR DEATH. TO AVOID POTENTIAL FIRE
AND/OR EXPLOSION DO NOT USE IN POTENTIALLY FLAMMABLE OR EXPLOSIVE ATMOSPHERES.
RUSKIN DPT-IQ FLOW METER WITH BACKLIT DISPLAY INSTALLATION INSTRUCTIONS
2
Primary Application
The Flow Meter (DPT-IQ) measures airow, velocity and differential pressure. It is designed to be used in
combination with any Ruskin velocity pressure air measuring probe (AMP series), air measuring louver (AML series),
or air measuring station (AMS series & CDRAMS) product.
It is designed to be used in any commercial application that requires accurate airow measurement. Unit may be
used in combination with Ruskin Air Measurement Stations to measure outside air, supply air, return air, discharge
air or exhaust air ows into or out of a building or air handling unit.
Key Features
• Two-line backlit display shows ow and pressure in either IP (English) or SI (Metric) units. Scalable, linear
output can be either Voltage or mA signal.
Key Benets
• Contributes to earning required Indoor Environmental Quality (EQ) and Energy and Atmosphere (EA) LEED
prerequisites.
• Save energy dollars by measuring the minimum ventilation airow to within ±3% accuracy. Control the
amount of unconditioned air into the space.
• Meet International Building Code (IBC) and International Energy Conservation Code (IECC) requirements.
• Maintain proper ventilation to dissipate dangerous indoor contaminants such as mold spores, bacteria and
chemicals.
• Create a healthy indoor environment to reduce absenteeism, increase productivity, improve comfort and
reduce the risk of litigation

DIMENSIONAL DATA
INSTALLATION INSTRUCTIONS
1) Mount the device in desired location (see step 1)
2) Open the lid and route cable through strain relief
and connect the wires to terminal block (see step 2).
3) The device is now ready for conguration
WARNING! Apply power after the device is properly
wired.
STEP 1 MOUNTING THE DEVICE
1) Select mounting location (duct, wall, panel) within
120 feet of the air measurement station.
2) Use the device as a template and mark the screw
holes, then drill holes.
3) Mount with appropriate screws (not included)
Figure 1 Figure 2
Figure 3BFigure 3A - Surface Mounting
Strain
Relief
RUSKIN DPT-IQ FLOW METER WITH BACKLIT DISPLAY INSTALLATION INSTRUCTIONS 3

RUSKIN DPT-IQ FLOW METER WITH BACKLIT DISPLAY INSTALLATION INSTRUCTIONS
4
STEP 2 WIRING DIAGRAM
For CE compliance, a properly grounded shielded
cable is required.
1) Unscrew strain relief and route cable
2) Connect the wires as shown in gure 4a and 4b.
3) Tighten the strain relief.
Application Connections
The pressure tubes are connected from the ports on
the bottom of the DPT-IQ (Figure 5) to a ow mea-
surement probe, or to the measurement station ports
as specied by Ruskin. Please see the installation
guide or the technical specications for the specic air
measurement station.
STEP 3 CONFIGURATION
To congure the Output signals (0-10V or 4-20mA) for
Pressure and Flow (Velocity or Volume), install jumpers
on the 6-pin set of Output Jumpers for Flow and Pres-
sure, located on the right side of the open device (see
Figure 3B). The conguration options for the jumpers are
shown to the right (Figure 6 jumper installed).
For 0-5V, set jumpers same as for 0-10V and change
selection in menu (Mode) to 0-5V.
CONFIGURATION MENU.
Selection convention used to input information into DPT-IQ
Entering information into the DPT-IQ is accomplished with three (3) Menu buttons (see Figure 3B). The Menu
buttons are labeled as follows:
Button 1: SELECT. Pressing down or tilting button 1 serves two functions:
A. Highlight Submenus: When a submenu is available, pressing down or tilting
button 1 will activate the submenu, causing it to blink.
B. Conrm Selection: When the proper choice is shown on the screen, pressing
down or tilting button 1 will select and store that value.
Button 2: UP. Cycle Up: Pressing down or tilting button 2, will cycle up through the menu choices.
If you cycle past your desired choice, the menu cycles through all the choices and
returns to the beginning of the list.
Button 3: DOWN. Cycle Down: Pressing down or tilting button 3, will cycle down through the menu
choices. If you cycle past your desired choice, the menu cycles through all the choices
and returns to the beginning of the list.
Push down on button 1 (see Figure 3B Schematic for location of button 1, 2, and 3) for 2-5 seconds to enter
the CONFIGURATION MENU.
Page 4 Upper Right
0-5V, 0-10V/or 4-20 mA
Figure 5 - Pressure Ports
Output Signal (0-10V or 4-20mA) Jumper Positions
* *
* *
Figure 6

DPT-IQ
Options
Default
Options Options Options Options Options Options Options Options Options Options Options Options
Response
Time
1 Sec
V Output
Max
0-Max CFM
corresponds
to 0-10VDC
P Output
Max
Line 1
Unit
Line 2
Unit
Duct
Height
Duct
Width
InInSqFt1.0InwcCFM
Model
AMS
Mode
Voltage
0-10V
Gain Area
AMS050
CDRAMS
AML3
AML6
CCUV*
AMP001
AMP002
AMP003
AMP015
AMP025
1-20 Sec Voltage
0-5V
Current
4-20mA
l/s
m/s
FPM
m/min
m3/s
l/s
m/s
FPM
m/min
Pa
inwc
m3/s
Pa FPM
m/min
Pa
m3/s
CFM
l/s
m/s
0.2 to
5.0
987654321 10 11
Diameter for CDRAMS
Diameter for AMP025
Notes
0-1 inwc
corresponds
to 0-10VDC
1Model Choose the Ruskin Model that is piped to the DPT-IQ. (Or CCUV if not listed)
2Response The Ruskin DPT-IQ enables you to set the Response Time from 1 – 20 seconds with 1 second increments.
Time Increasing the Response Time can reduce the inuence of air turbulence.
3Mode Use jumpers to complete, as described in Step 3 above.
4V output The Ruskin DPT-IQ enables you to set the Velocity or Volume Output Maximum, to improve resolution of the ow reading,
Max by limiting the range. NOTE: Output Units can be different from Display Units.
CFM 50 Min to 100,000 Max - 1 CFM increments
l/s 25 Min to 50,000 Max - 1 l/s increments
m/s 1 Min to 100 Max - 1 m/s increments
FPM 2,000 Min to 20,000 Max - 10 FPM increments
m/min 60 Min to 6000 Max - 1 m/min increments
m3/s 0.025 Min to 50 Max - 0.001 increments
EXAMPLE: The DPT-IQ has an effective range of 50 – 100,000 CFM. If Flow Volume readings are expected below 12,000
CFM, adjust the V Output Maximum to 12,000 CFM, to improve resolution. The DPT-IQ can have the V Output Maximum
set between 50 – 100,000 CFM, to improve resolution.
5P output Set the Pressure Output Maximum, to improve resolution of the Pressure reading,
Max by limiting the range. NOTE: Output Units can be different from Display Units.
inwc 0.10 inwc Min to 4.0 inwc Max - 0.01 inwc increments
Pa 100Pa Min to 1000Pa Max - 50Pa increments
EXAMPLE: The DPT-IQ has a capable range of 0 – 4.0 inwc. If pressure readings are expected below 1.00 inwc, adjust
the Pressure Output Maximum to 1.00 inwc, to improve resolution. The DPT-IQ can have the Pressure Output Maximum
set between 0.1 – 4.0 inwc, to improve resolution.
6 Line 1 Unit Choose which SI unit (inwc, FPM, CFM) or UI unit (m3/s, Pa, m/min. m/s, l/s) you will use.
7 Line 2 Unit Choose which SI unit (inwc, FPM, CFM) or UI unit (m3/s, Pa, m/min. m/s, l/s) you will use.
8 Gain The GAIN feature is designed to allow modication to the reported output. The number shown is a multiplier. Increase
the reported output by increasing the GAIN number above 1.000. (To increase reported output by 5%, adjust number to
1.050. Decrease the reported output by decreasing the GAIN number to less than 1.000. (To decrease reported output by
5%, adjust number to 0.950. The range is from 0.200 to 5.000 with 0.001 increments.
9 Area Area is computed when you enter duct height and width for rectangular units, and diameter for round units. The computed
value can be over-ridden if you enter an area (in square feet) in this selection.
10 Duct Height Enter in inches
11 Duct Width Enter in inches
Note
STEP 3 CONFIGURATION (continued)
Size
RUSKIN DPT-IQ FLOW METER WITH BACKLIT DISPLAY INSTALLATION INSTRUCTIONS 5
* CCUV (Custom Congurable Universal Values) allows for Ka values and exponent values to match any device not listed in the Model column.
Default value is Ka = 4005 and exponent 1/m = 0.5

RUSKIN DPT-IQ FLOW METER WITH BACKLIT DISPLAY INSTALLATION INSTRUCTIONS
6
STEP 4 ZERO THE DEVICE
Operation
1) Manual Pushbutton Auto Zero
NOTE: Supply voltage must be connected at least one hour prior to zero point adjustment.
a) Disconnect both pressure tubes from the pressure ports labeled + and –, and install short tube connecting + to - ...
(see Figure 5).
b) Push down the zero button (see Figure 7) until the LED light (red) turns on and the display reads “zeroing”
c) The zeroing of the device will proceed automatically. Zeroing is complete when the LED turns off, and
the display reads 0. Press zero button again if zero is not displayed.
d) Reinstall the pressure tubes, ensuring the High pressure tube is connected to the port labeled +, and
the Low pressure tube is connected to the port labeled. (see Figure 5)
NOTE: The zero point should be calibrated via manual auto zero, one hour after installation and at least every 12
months during normal operations.
1) The device requires 24VDC/VAC power at terminals 24V & GND.
2) With no air owing through the AMS and power applied to the controller, the DPT-IQ will generate a Vout 0V or
0mA signal between Vout and GND.
Figure 7

RUSKIN DPT-IQ FLOW METER WITH BACKLIT DISPLAY INSTALLATION INSTRUCTIONS 7
SPECIFICATIONS
INSTALLATION
Supply Voltage 24VDC/VAC ± 10%
Voltage Output 0-5V, 0-10V, Power Consumption <1.0W
Current Output 4-20 mA, Power Consumption <1.2W
OUTPUTS
Flow and Pressure 0-5V, 0-10V or 4-20mA linear signal
FLOW UNITS
Volume: m3/s, m3/hr, cfm, l/s (selectable)
Velocity: m/s, ft/min (selectable)
PRESSURE UNITS
Pa, kPa, mbar, inwc, mmwc (selectable)
RESPONSE TIME
1.0 to 20 Sec selectable via menu
DISPLAY
31/2Digit LCD 1.81" x 0.57" (46 x 14.5mm)
ENCLOSURE
ABS (UL94 V-1) NEMA 3 3.54" x 3.74" x 1.4" (90.0 x 95.0 x 36.0 mm)
MEASURING ELEMENT
Piezoresistive
OPERATING RANGE
Air temperature Range of 14º F to 122º F (-10 to 50°C)
Storage Temperature -4º F to 158º F (-20 to 70C)
Humidity 0-95% relative humidity (non-condensing)
CONFORMANCE
Meets requirements for CE marking:
EMC Directive 2004/108/EY
RoHS Directive 2002/95/EY
Meets safety requirements for electrical equipment for measure-
ment, control, and laboratory use:
ETL marking, standard IEC61010-1.
Product is tested and meets the NRTL product approval
requirements.
MEDIA COMPATIBILITY
Dry air or non-aggressive gases

3900 Dr. Greaves Rd.
Kansas City, MO 64030
[phone]
FAX [phone]
www.ruskin.com
®
3900 Dr. Greaves Rd.
Kansas City, MO 64030
[phone]
FAX [phone]
www.ruskin.com
®