DPT-Flow Series-4 HKI airflow transducer

AIRFLOW AND VELOCITY TRANSDUCERS
DPT-Flow Series-4
INTRODUCTION
INSTALLATION
INSTRUCTIONS
WARNING
Thank you for choosing an HK Instruments DPT-Flow Series-4
Airflow Transducer. The DPT-Flow Series-4 is intended for use in
commercial environments. The DPT-Flow measures airflow, velocity
and differential pressure. It is designed to be used in combination
with airflow measurement probes (i.e. FloXact) or with centrifugal fans
that provide differential pressure connections and K-values.
The DPT-Flow Series-4 Airflow Transducer is comprised of the
DPT-Flow-4, DPT-Flow-8, DPT-Flow-20 and DPT-Flow-30 with
measurement ranges of 0-4 inWC, 0-8 inWC, 0-20 inWC and 0-30
inWC, respectively. All models come with display and manual pushbutton auto-zero. The DPT-Flow is available with optional
and
NIST standard calibration certificates.
APPLICATIONS
•
•
•
•
•
•
READ THESE INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING
TO INSTALL, OPERATE OR SERVICE THIS DEVICE.
Failure to observe safety information and comply with instructions could
result in PERSONAL INJURY, DEATH AND/OR PROPERTY DAMAGE.
To avoid electrical shock or damage to equipment, disconnect power before installing or servicing and use only wiring with insulation rated for full device operating voltage.
To avoid potential fire and/or explosion do not use in potentially flammable or explosive atmospheres.
Retain these instructions for future reference.
This product, when installed, will be part of an engineered system whose specifications and performance characteristics are not designed or
controlled by HK Instruments, Inc. Review applications and national and
local codes to assure that the installation will be functional and safe.
Use only experienced, knowledgeable, technicians to install this device.
• Airflow and pressure monitoring across DPT-Flow series-4
devices are commonly used
in HVAC/R systems for:
centrifugal fans and blowers
• In-duct airflow and pressure monitoring
• VAV applications
SPECIFICATIONS
Performance
Accuracy (at applied pressure):
Ranges < 0.5 inWC = ±0.01 inWC
Ranges ≥ 0.5 inWC = ±1,5% inWC
Accuracy specifications include: general accuracy,
temperature drift, linearity, hysteresis, long term
stability, and repetition error.
Thermal Effects
Temperature compensated across the full
spectrum of capability.
Overpressure
Proof Pressure: 100 inWC
Zero Point Calibration
Automatic with
function or
Manual push-button Auto-Zero
Response Time
1.0 − 20 sec, selectable via menu
Case
Dimensions: 3.54” x 3.74” x 1.4”
(90.0 x 95.0 x 36.0 mm)
Weight: 5.3 oz (150 g)
Media Compatibility
Dry air or non-aggressive gases
Pressure Units (select via configuration menu)
Pa, kPa, mbar, inWC, mmWC
Pressure Output Range (select via configuration menu)
DPT Flow-4
DPT Flow-8
DPT Flow-20 DPT Flow-30
Pa
100 - 1,000
200 - 2,000
500 - 5,000
700 - 7,000
kPa
0.1 - 1.0
0.2 - 2.0
0.5 - 5.0
0.7 - 7.0
mbar
1 - 10
2.0 - 20
5.0 - 50
7.0 - 70
mmWC
10 - 100
20 - 200
50 - 500
70 - 700
inWC
0.4 - 4.0
0.8 - 8.0
2.0 - 20
2.5 - 30
Flow Units (select via configuration menu)
Volume: m3/s, m3/hr, CFM, l/s
Velocity: m/s, FPM
Flow Output Range (select via configuration menu)
Unit
Range
Unit
Range
m3/s
0.025 - 50
I/s
25 - 50,000
m3/hr
100 - 200,000
m/s
1 - 100
CFM
50 - 100,000
FPM
2,000 - 20,000
© HK Instruments 2012-2014
Environment:
Operating Temperature:
14 −122°F (-10 − 50°C)
with (-eZ)
circuit option
23 −122°F (-5 − 50°C)
Configuration, while using display
32 −122°F (0 − 50°C)
Storage Temperature:
-4 −158°F (-20 − 70°C)
Humidity:
0 to 95% RH, non condensing
Physical
Technical Specifications
Unit
Measuring Element
Piezoresistive
Mounting:
2 each 11/64” (4.3mm) screw holes,
one slotted
Materials:
Case: ABS (UL 94 V-0 Approved)
Lid: PC (UL 94 V-0 Approved)
Protection standard:
IP54 / NEMA3
Display (required for configuration)
3 1/2 Digit LCD Backlit Display
2-Line Display (12 character/line)
Size: 1.81” W x 0.57” H
(46.0 x 14.5 mm)
Electrical Connections
4 screw terminal block
Wire: 12-24AWG (0.2 – 1.5 mm2)
Cable Entry
Strain Relief: M16
Knockout : 0.625” (16mm)
Pressure Fittings
3/16”
(5.2mm) barbed brass
+ High pressure
− Low pressure
Electrical
Voltage
Circuit: 3-wire ([V Out or P Out], 24V, GND)
Input: 24VAC or VDC, ±10%
Output: 0-10V, selectable via jumper
Power Consumption: <1.0W
Resistance Minimum: 1kΩ
Current
Circuit: 3-wire ([V Out or P Out], 24V, GND)
Input: 24VAC or VDC, ±10%
Output: 4-20 mA, selectable via jumper
Power Consumption: <1.2W
Maximum load: 500Ω
Conformance
Meets requirements for CE marking:
EMC directive 2004/108/EY
RoHS Directive 2002/95/EY
Meets safety requirements for electrical
equipment for measurement, control, and
laboratory use:
ETL marking, standard IEC61010-1.
Product is tested and meets the NRTL
product approval requirements.
Intertek
Conforms to ANSI/UL Std 61010
Certified to CAN/CSA Std C22.2 No 61010
4002576
Installation instructions 1.0
SCHEMATIC
STEP 1
MOUNTING DEVICE
1) Select mounting location (duct, wall, panel).
2) Use the device as a template and mark the screw holes.
3) Mount with appropriate screws, not included.
Surface Mounting
Joystick 1
Select
Pressure
Sensor
Joystick 2
Up
Joystick 3
Down
V OUT
LED
Zero
Flow
P OUT
24V
4-20mA
Out
0-10V
GND
Menu Buttons
Terminal Block
Output
Jumpers
Pressure
Figure 3a
Mounting Orientation
DIMENSIONAL DRAWINGS
3.54
(90.0)
1.41
(36.0)
3.03
(77.0)
3.74
(95.0)
DPT-Flow
2.086
(53.0)
2.815
(71.5)
YES
LOW PRESSURE DEVICES
NO
0.169
(4.2)
NO
Figure 3b
in
(mm)
Application Connections
INSTALLATION
The pressure tubes are connected to a flow measurement
probe (i.e. FloXact), or to the measurement ports specified
by FAN manufacturer. Please see probe installation guide
or the FAN manufacturers technical specifications for
more information.
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 configuration.
Figure 3c
WARNING! Apply power after the device is properly wired.
© HK Instruments 2012-2014
-2-
Installation instructions 1.0
STEP 2
WIRING DIAGRAM
Output Signal 0-10V or 4-20mA Jumper Positions
For CE compliance, a properly grounded shielding cable is required.
Gray color indicates
Jumper is installed.
1) Unscrew strain relief and route cable.
2) Connect the wires as shown in Figure 4.
Flow | Pressure
4 - 20 mA
3) Tighten the strain relief.
Out
Flow Out: 0-10V
Pressure Out: 4 - 20 mA
Wiring: V Out & P Out
Output 0 - 10V / 4 - 20mA
A
V
A
+
Jumpers
V Out
Output 0 - 10V / 4 - 0mA
V
0 - 10V
P Out
Power Supply
24VDC / 24VAC
Flow | Pressure
24V
4 - 20 mA
GND
Out
Figure 4
Flow Out: 0 - 10V
Pressure Out: 0 - 10V
0 - 10V
Jumpers
Flow | Pressure
STEP 3
4 - 20 mA
CONFIGURE OUTPUT SIGNALS
Out
To configure the Output signals (0-10V or 4-20mA) for
Pressure and Flow (Velocity or Volume), install jumpers on
the 3-pin set of Output Jumpers for Flow and Pressure,
located on the right side of the open device, see Schematic.
Configuration options for the jumpers are shown on right of
page. Gray with white dots show jumper is installed.
Flow Out: 4 - 20 mA
Pressure Out: 4 - 20 mA
0 - 10V
Jumpers
Flow | Pressure
4 - 20 mA
Jumpers
Out
Joystick 1
Select
Joystick 3
Down
Flow Out: 4 - 20 mA
Pressure Out: 0 - 10V
Pressure
Sensor
Joystick 2
Up
0 - 10V
Jumpers
V OUT
LED
Zero
Flow
P OUT
24V
Menu Buttons
STEP 4
4-20mA
Out
0-10V
GND
Terminal Block
CONFIGURE MENU
Selection convention used to input information into DPT-Flow
Pressure
Entering information into the DPT-Flow is accomplished with three
(3) joysticks (see schematic). The joysticks are labeled as follows:
Flow
Joystick 1
SELECT
Tilting Joystick 1 serves two functions:
A. Highlight Submenus: When a submenu
is available, tilting Joystick 1 will activate the
submenu, causing it to blink.
B. Confirm Selection: When the proper choice is
shown on the screen, tilting Joystick 1 will select
and store that value.
Joystick 2
UP
Cycle Up: Tilting Joystick 2, will cycle up through
the menu or submenu choices. If you cycle past
your desired choice, the menu cycles through all
the choices and returns to the beginning of the list.
Joystick 3
DOWN
Cycle Down: Tilting Joystick 3, will cycle
down through the menu or submenu choices.
If you cycle past your desired choice, the menu
cycles through all the choices and returns to the
beginning of the list.
4 - 20mA
Out
0 - 10V
Output
Jumpers
Pressure
Jumper
Stored
Gray block indicates how jumper is installed.
© HK Instruments 2012-2014
-3-
Installation instructions 1.0
STEP 4-0
ENTER CONFIGURATION MENU
STEP 4-4
Continuing from selection of Round (inch)
or Round (mm).
Tilt Joystick 1 (see Schematic for location of Joysticks 1, 2, and 3)
for 2-5 seconds to enter the CONFIGURATION MENU.
STEP 4-1
Fan Manufacturer where you will connect
tubing directly to ports on the fan.
- or Probe where you will connect tubing to probe.
1) Highlight sub-menu by tilting Joystick 1,
Fan Mfg will begin blinking.
2) Cycle Up or Cycle Down by using Joystick 2 or Joystick 3, between Submenu choices.
SELECT MODE
Fan Mfg
3)
Display
Select Mode
Fan Mfg
Probe
5) Once the display shows the desired setting and begins blinking again confirm your selection by tilting Joystick 1.
If Fan Mfg is selected:
Cycle Down by using Joystick 3 to cycle to the next step in
configuring the device. For the next configuration step in these
installation instructions, go to STEP 4-16.
6) Cycle Down to the next step in configuring the device. For the next configuration step in these installation instructions, go to STEP 4-8.
If Probe is selected:
Cycle Down by using Joystick 3 to cycle to the next step in
configuring the device. For the next configuration step in these
installation instructions, go to STEP 4-2.
STEP 4-5
1) Highlight sub-menu by tilting Joystick 1, Probe will begin blinking.
2) Cycle Up or Cycle Down by tilting Joystick 2 or Joystick 3, between sub-menu choices.
3) Confirm selection by tilting Joystick 1, when correct choice is shown on the display.
SEL: PROBE
Probe
3)
Display
Sel: PROBE
FloXact
Other
Menu
5) Once the display shows the desired setting and begins blinking again confirm your selection by tilting Joystick 1.
6) Cycle Down to the next step in configuring the device. For the next configuration step in these installation instructions,
go to STEP 4-6.
STEP 4-6
2) Cycle Up or Cycle Down by tilting Joystick 2 or Joystick 3, between sub-menu choices.
1) Highlight sub-menu, the top line of the display will show HEIGHT and the bottom line will change to a blinking number.
Select Duct
4) Cycle Down to the next step in configuring the device. For the next configuration step in these installation instructions.
Rectangle - Inch
If Round is selected: go to STEP 4-4.
If Rectangle is selected: go to STEP 4-5.
© HK Instruments 2012-2014
3)
Display
Round - Inch
HEIGHT
10,000
Display
2) Cycle Up or Down, by tilting Joystick 2 or 3 respectively, to increase or decrease the value shown on the display.
SEL: DUCT
Round (inch)
3) Confirm Selection by tilting Joystick 1, when correct choice is shown on the display. DUCT HEIGHT
Continuing from selection of Duct Width.
SELECT DUCT
1) Highlight sub-menu, display will show
SEL: DUCT and Round (inch) will be blinking.
The digit farthest right will cycle from 0-9 or 9-0, then
move to the next digit left and continue cycling Up or Down.
If desired number is passed, then tilt the opposite Joystick
to cycle back within 1.25 seconds. After which, display will begin to blink, indicating steps 2 and 3 must be repeated.
4) If the diameter has a fraction of an inch (i.e. 10-3/8” = 10.365), then enter the fraction as a decimal equivalent.
If Other is selected:
Cycle Down by tilting Joystick 3 to the next step in configuring
the device. For the next configuration step in these installation
instructions, go to STEP 4-17.
Continuing from selection of PROBE: FloXact.
WIDTH
10,000
1) Highlight sub-menu, the top line of the display will show WIDTH and the bottom Display
line will change to a blinking number.
2) Cycle Up or Down, by tilting Joystick 2 or 3 respectively, to
increase or decrease the value shown on the display.
If FloXact is selected:
Cycle Down by tilting Joystick 3 to the next step in configuring
the device. For the next configuration step in these installation
instructions, go to STEP 4-3.
STEP 4-3
DUCT WIDTH
Continuing from selection of Rectangle (inch)
or Rectangle (mm).
SELECT PROBE
Determine if the probe installed is:
FloXact probe from HK Instruments.
- or OTHER probe made by different manufacturer.
The digit farthest right will cycle from 0-9 or 9-0, then move to the next digit left and continue cycling Up or Down.
If desired number is passed, then tilt the opposite Joystick
to cycle back within 1.25 seconds. After which, display will begin to blink, indicating steps 2 and 3 must be repeated.
4) If the diameter has a fraction of an inch (i.e. 10-3/8” = 10.365), then enter the fraction as a decimal equivalent.
Menu
3) Confirm Selection by tilting Joystick 1, when correct choice is shown on the display.
STEP 4-2
DIAMETER
10,000
1) Highlight sub-menu, the top line of the
display will show DIAMETER and the
Display
bottom line will change to a blinking number.
2) Cycle Up or Down, by tilting Joystick 2 or 3 respectively, to increase or decrease the value shown on the display.
SELECT MODE
Determine if configuration is for:
DUCT DIAMETER
The digit farthest right will cycle from 0-9 or 9-0, then move to the next digit left and continue cycling Up or Down.
If desired number is passed, then tilt the opposite Joystick
to cycle back within 1.25 seconds. After which, display will begin to blink, indicating steps 2 and 3 must be repeated.
4) If the diameter has a fraction of an inch (i.e. 10-3/8” = 10.365), then enter the fraction as a decimal equivalent.
Round - mm
5) Once the display shows the desired setting and begins blinking again confirm your selection by tilting Joystick 1.
Rectangle - mm
6) Cycle Down to the next step in configuring the device.
For the next configuration step in these installation instructions, go to STEP 4-7.
Menu
-4-
Installation instructions 1.0
STEP 4-7
PROBE QUANTITY
Continuing from selection of Duct Height.
1) Highlight sub-menu, the display will show PROBE QTY and 1 will be blinking.
STEP 4-10
Continuing from selection of Pressure Unit.
PROBE QTY
1
This device supports Pressure Output
Maximum settings, to improve resolution
of the Pressure reading by limiting the
range/span. Range/span maximums
are outlined in table, below. Range/span
minimums are 0 for all units.
Display
2) Cycle Up or Cycle Down by using Joystick 2 or Joystick 3, to increase or decrease the number of probes installed.
3) Confirm Selection, when correct value is shown on the display.
The GAIN feature is designed to allow
modification to the reported output, to match
Test and Balance measurements, if necessary.
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.
100 - 1,000
200 - 2,000
500 - 5,000
700 - 7,000
kPa
0.1 - 1.0
0.2 - 2.0
0.5 - 5.0
0.7 - 7.0
mbar
1 - 10
2.0 - 20
5.0 - 50
7.0 - 70
mmWC
10 - 100
20 - 200
50 - 500
70 - 700
Display
inWC
0.4 - 4.0
0.8 - 8.0
2.0 - 20
2.5 - 30
Example: The DPT-Flow-4 has a capable range of 0 - 4.0
inWC. If pressure readings are expected below 2.50 inWC,
adjust the Pressure Output Maximum to 2.50 inWC, to improve
resolution. The range/span will be adjusted to 0.0 - 2.50 inWC.
The DPT-Flow-4 can have the Pressure Output Maximum set
between 0.4 – 4.0 inWC, to improve resolution.
2) Cycle Up or Cycle Down increase or decrease the value of the multiplier.
3) Confirm Selection, when correct value is shown on the display.
1) Highlight sub-menu, the top line of the display will show
P OUTPUT MAX and the bottom line will change to a blinking number equal to the Maximum Output.
2) Cycle Up or Down, by tilting Joystick 2 or 3 respectively,
to increase or decrease the value shown on the display.
5) Cycle Down to the next step in configuring the device. For the next configuration step in these installation instructions,
go to STEP 4-9.
3) Confirm Selection, when correct value is shown on display.
4) Cycle Down to the next step in configuring the device.
For the next configuration step in these installation instructions, go to STEP 4-11.
PRESSURE UNIT
Continuing from selection of
GAIN multiplier.
Pa
GAIN
1,000
1) Highlight sub-menu, the display will show GAIN and the number 1.000 will be blinking.
STEP 4-9
Display
Pressure
DPT-Flow Series-4 Model Number
Unit
DPT Flow-4 DPT Flow-8 DPT Flow-20 DPT Flow-30
GAIN
Continuing from STEP 4-4, 4-7, or 4-19.
STEP 4-11
FLOW UNIT
Continuing from selection of Pressure
Output Maximum.
PRESS. UNIT
“WC
Display
1) Highlight sub-menu, the display will show PRESS. UNIT and “WC will be blinking.
1) Highlight sub-menu, the display will show FLOW UNIT and m3/s will be blinking.
2) Cycle Up or Cycle Down to select the correct measurement unit.
Pressure Unit
Output Options
2) Cycle Up or Cycle Down by using Joystick 2 or Joystick 3, to select the correct flow unit.
3) Confirm Selection, when correct option is shown on the display.
Pa
3) Confirm Selection, when correct option is shown on the display.
4) Cycle Down to the next step in configuring the device. For the next configuration step in these installation instructions,
go to STEP 4-10.
kPa
4) Cycle Down to the next step in configuring the device. For the next configuration step in these installation instructions,
go to STEP 4-12.
mbar
psi
inWc
FLOW UNIT
m3/s
Display
Flow Units
Volume
m3/s
m3/h
CFM
I/s
Velocity
mmWc
m/s
None
FPM
Menu
© HK Instruments 2012-2014
P OUTPUT MAX
4.000 “WC
Pressure Output
Upper Range/Span Maximum Settings
5) Cycle Down to the next step in configuring the
device. For the next configuration step in these installation instructions, go to STEP 4-8.
STEP 4-8
PRESSURE OUTPUT MAX
Menu
-5-
Installation instructions 1.0
STEP 4-12
V OUTPUT MAX
Continuing from selection of Pressure Unit.
This device supports Velocity or Volume
Output Maximum settings to improve
resolution of the flow reading, by limiting
the range/span. Range/span maximums
are outlined in table below. Range/span
minimums are 0 for all units.
STEP 4-14
Continuing from selection of Response
Time setting.
V OUTPUT MAX
100000 CFM
This device supports a reset to Factory
Settings.
Display
Volume
Flow Unit
Output
Maximum Setting
Velocity
Flow Unit
Output
Maximum Setting
m3/s
0.025 - 50
m/s
1 - 100
m3/h
100 - 200,000
FPM
2,000 - 20,000
CFM
50 - 100,000
I/s
25 - 50,000
CONFIRM RST
NO
Display Selected
3) Confirm Selection, when correct option is shown
on the display.
4) Cycle Down to the next step in configuring the device. For the next configuration step in these installation instructions, go to STEP 4-15.
STEP 4-15
EXIT MENU
Continuing from selection Resetting
Factory settings.
SELECT
EXIT MENU
Confirm Selection to EXIT the
CONFIGURATION MENU by tilting
Joystick 1. Device is now ready to use.
1) Highlight sub-menu, the top line of the display will show V OUTPUT MAX and the bottom line will change to a blinking number equal to the Maximum Output.
STEP 4-16
3) Confirm Selection, when correct value is shown on display.
1) Determine if the Fan Manufacturer is included on the list of participating manufacturers, in menu.
4) Cycle Down to the next step in configuring the device.
For the next configuration step in these installation instructions, go to STEP 4-13.
Display
SELECT FAN MANUFACTURER
Continuing from STEP 4-1 selection
of Fan Manufacturer.
2) Cycle Up or Down, by tilting Joystick 2 or 3 respectively, to increase or decrease the value shown on the display.
SEL: FAN MFG
Flakt Woods
2) Highlight sub-menu, the display will show SEL: FAN MFG and Menu of manufacturers.
RESPONSE TIME
This device supports Response Time
settings from 1 - 20 seconds. Increasing
the Response Time can reduce the
influence of air turbulence.
Display
2) Cycle Up or Cycle Down between the options of NO or YES.
Example: DPT-Flow-4 has an effective Flow Volume range of
0 – 100,000 CFM. If Flow Volume readings are expected below
15,000 CFM, adjust the V Output Maximum to 15,000 CFM,
to improve resolution. The range/span will be adjusted to 0.0 15,000 CFM. The DPT-Flow-4 can have the V Output Maximum
set between 50 – 100,000 CFM to improve resolution.
Continuing from selection of Flow (V)
Output Maximum setting.
RESET SETT.
PRESS SELECT
1) Highlight sub-menu, the display will change to CONFIRM RST and NO will be blinking.
Flow Output
Volume or Velocity Upper Range/Span Maximum Settings
STEP 4-13
RESET SETTINGS
If the Fan Manufacturer is included in the
menu, then:
RESPONSE TIME
20 s
3a) Cycle Up or Cycle Down through the list of manufacturers until the correct one is shown on the display.
Display
4a) Confirm Selection, when correct option is shown on the display.
5a) Cycle Down to the next step in configuring the device. For the next configuration step in these installation instructions,
go to STEP 4-19.
1) Highlight sub-menu, the display will show RESPONSE TIME and the number 20 will be blinking.
2) Cycle Up or Cycle Down increase or decrease the number of seconds required.
Display
Fan Mfg
Comefri
Ebm-Papst
Flakt Wood
Gebhardt
Necota
Rosenbert
Ziehl
Other
Menu
If the Fan Manufacturer is not included in the menu, then:
3) Confirm Selection, when correct value is shown on the display.
3b) Cycle Up or Cycle Down through the list of manufacturers until OTHER is shown on the display.
4) Cycle Down to the next step in configuring the device. For the next configuration step in these installation instructions,
go to STEP 4-14.
4b) Confirm Selection, when correct option is shown on the display.
5b) Cycle Down to the next step in configuring the device. For the next configuration step in these installation instructions,
go to STEP 4-17.
© HK Instruments 2012-2014
-6-
Installation instructions 1.0
STEP 4-17 OTHER
FORMULA UNIT: PRESSURE
Continuing from selection of Step 4-16:
OTHER Fan Mfg. OR Step 4-2: OTHER:
Probe.
The Formula Unit for Pressure, will be
supplied by the Fan Manufacturer or
Probe manufacturer. The DPT-Flow can
accept Pa or inWC. If the Pressure Unit
supplied by the manufacturer is different,
then convert the supplied value to Pa
or inWC.
STEP 4-19
SELECT K-VALUE
Continuing from selection from STEP 4-16
or STEP 4-18.
FORMULA UNIT
PRESSURE
1) Highlight sub-menu, the top line of the display will show SEL: K-VALUE and the
bottom line will begin to blink.
Display
2)
PRESS. UNIT
Pa
Display Selected
SEL: K-VALUE
1,000
Display
Cycle Up or Down, by tilting Joystick 2 or 3 respectively, to increase or decrease the value shown on the display.
If desired number is passed, then tilt the opposite Joystick
to cycle back within 1.25 seconds. After which, display will begin to blink, indicating steps 2 and 3 must be repeated.
3) Confirm Selection, when correct value is shown on display.
4) Cycle Down to the next step in configuring the device.
For the next configuration step in these installation instructions, go to STEP 4-8.
1) Highlight sub-menu, the display will change to PRESS. UNIT and the Pa will be blinking.
2) Cycle Up or Cycle Down between the options of Pa or inWC.
3) Confirm Selection, when correct option is shown on the display.
4) Cycle Down to the next step in configuring the device. For the next configuration step in these installation instructions,
go to STEP 4-18.
STEP 4-18 OTHER
FAN MANUFACTURER’S EQUATIONS
Each pre-configured Fan Manufacturer has its own equation,
K-Value, K-Value range, and equation units (Flow and
Pressure), see table below. By selecting a pre-configured
fan manufacturer from the menu, the correct configuration
settings for that manufacturer will automatically be configured
into the DPT-Flow S-4.
FORMULA UNIT: FLOW
Continuing from selection of OTHER:
Formula Unit: Pressure.
The Formula Unit for Flow, will be
supplied by the Fan Manufacturer or
Probe manufacturer. The DPT-Flow
can accept options in Flow Units
menu. If the Flow Unit supplied by the
manufacturer is different than menu
options, then convert the supplied value
to one listed.
1) Highlight sub-menu, the display will change to FLOW UNIT and m/s will be blinking.
2) Cycle Up or Cycle Down to select the correct flow unit.
3) Confirm Selection, when correct option is shown on the display.
4) Cycle Down to the next step in configuring the device. For the next configuration step in these installation instructions, go to STEP 4-19.
FORMULA UNIT
FLOW
Fan
Manufacturer
Display
FORMULA UNIT
m/s
Fläkt Woods
Display Selected
Flow Units
Volume
m3/s
m3/h
CFM
Manufacturer’s
Equation
Q=
1
√ ∆P
k*
Formula
Unit Flow
Formula
Unit
Pressure
0.3 - 99
m3/s
Pa
Rosenberg
Q=k*
√
2 * ∆P
ρ
37 - 800
m3/h
Pa
Nicotra
Q=k*
√
2 * ∆P
ρ
10 - 1,500
m3/h
Pa
Comefri
Q=k*
√
2 * ∆P
ρ
10 - 2,000
m3/h
Pa
Ziehl-Abegg
Q = k * √ ∆P
10 - 1,500
m3/h
Pa
EBM - Papst
Q = k * √ ∆P
10 - 1,500
m3/h
Pa
50 - 4,700
m3/h
Pa
I/s
Gebhardt
Velocity
K-Value
Range
Q=k*
√
2 * ∆P
ρ
m/s
Q = Air Volume in (m3/s, m3/h, CFM, l/s)
FPM
k = KVOL (K-Value for Air Volume) in
(Flow Unit/Pressure Unit)
Menu
∆P = Differential Pressure measured by the FloXact probe
ρ
© HK Instruments 2012-2014
-7-
= Density of the gas (air) in (kg/m3) or (lb/ft3).
- At 20°C, 1013.25 mbar, and 50% R.H., air has a density of 1.2041 kg/m3.
- At 70°F, 14.6956 psi, and 50% R.H., air has a density
of 0.074887 lb/ft3.
- The correction for different densities is determined
with the following formulas:
Metric
ρ
Correction = √ 1.2041
ρ
USA
Correction = √ 0.074887
Installation instructions 1.0
ZERO THE DEVICE
WARRANTY POLICY
To zero the device two options are available:
1) Manual Push-button Auto Zero
2)
zero point calibration function
HK Instruments, Inc. (HK)
(a) WARRANTY COVERAGE: HK warrants to the original end user
of the Products that the Products will, at the date of initial
purchase, meet the applicable specification for such Products (as
described by HK in its product literature) and, under normal use
and service, will be free from any defects in materials or manufacture for (a) one (1) year from date of sale to end user for electromechanical Products and (b) five (5) years from date of manufacture
for electronic Products.
Does my transducer have an
function?
See the product label. If it shows -eZ in the model number, then
you have the
function.
1) Manual Push-button Auto Zero
NOTE: Supply voltage must be connected at least one hour prior
to zero point adjustment.
(b) NO WARRANTY OF PRODUCT SUITABILITY: Neither HK nor
the manufacturer of the Products to be sold hereunder
(“Manufacturer”) makes any warranty that Products are suitable for
a particular purpose, application or design. Many states and
localities have differing codes or regulations governing the installation and/or use of HK products. HK does not guarantee compliance with such codes or regulations; the end user is solely
responsible for safe and correct installation and use of the Products and for compliance with such codes and regulations.
a) Disconnect both pressure tubes from the pressure ports labeled
+ and –.
b) Push down the zero button until the LED light (red) turns on and
the display reads “zeroing”. (see Schematic)
c) The zeroing of the device will proceed automatically. Zeroing is
complete when the LED turns off, and the display reads 0.
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 −.
(c) EXCLUSION OF IMPLIED WARRANTIES: THE WARRANTY
HEREIN IS THE ONLY WARRANTY APPLICABLE TO THE PRODUCTS AND EXCLUDES ALL OTHER WARRANTIES, INCLUDING
ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE, AND ANY IMPLIED WARRANTY ARISING FROM COURSE OF DEALING OR USAGE OF TRADE.
NOTE: The zero point should be calibrated via manual auto zero,
one hour after installation and at least every 12 months during
normal operations.
2)
function
If the device includes the optional
is required.
(d) REMEDIES FOR NON-CONFORMITY OR BREACH OF WARRANTY: If the Product purchased does not conform to the applicable warranty, HK will provide, at its option, one of the following
remedies: (1) repair of the non-conforming Product, (2) replacement with a conforming Product, or (3) refund of the original
purchase price. THESE REMEDIES SHALL BE THE EXCLUSIVE
AND SOLE REMEDY for any breach of warranty. HK and Manufacturer have no other responsibility or liability for breach of warranty
or otherwise.
circuit, no action
(-eZ) is a True Automatic Zeroing circuit, in the form of a
peripheral connected directly to the PCB board. The
peripheral electronically adjusts the transmitter’s zero point every
10 minutes. During the 4 second adjustment period, the output
and display values are frozen to the last measured value, thus
eliminating any conflict with the BAS/controller. After the electronic
adjustment the device returns to its normal measuring mode.
(e) LIMITATION OF LIABILITY: NEITHER HK NOR MANUFACTURER WILL BE LIABLE FOR ANY INCIDENTAL, SPECIAL,
INDIRECT, OR CONSEQUENTIAL DAMAGES UNDER ANY
CIRCUMSTANCE, INCLUDING WITHOUT LIMITATION ANY
DEFECT IN THE PRODUCT PURCHASED.
(f) FURTHER LIMITATIONS: The warranty herein does not cover
damage caused by lightning, flood or other natural phenomenon;
normal wear and tear; accident, improper or careless handling,
abnormal use, overloading, improper storage or abuse; incorrect
installation, care or reconstruction; or alteration, calibration,
reconfiguration, maintenance or installation work done by unqualified personnel. Should Manufacturer alter the structure of any
Product in the future, HK and Manufacturer shall not be obligated
to make comparable changes to Products already purchased. HK
will give a new warranty for Products being replaced or repaired
within the warranty period, however only to the expiration of the
original Product’s warranty period. The warranty includes the repair
of a defective part or device, or if needed, a new part or device,
but no other costs except as otherwise stated in the HK Distributor
Terms and Conditions.
Transmitters equipped with the
peripheral are virtually
maintenance free eliminating all output signal drift due to thermal,
electronic, or mechanical effects. In addition the
peripheral
eliminates the need for technicians to remove high and low
pressure tubing from the device, when performing initial or
periodic zero point calibration.
© HK Instruments 2012-2014
FIGURE 3
-8-
Installation instructions 1.0

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