HK Instruments DPT-Flow-1000, DPT-Flow-7000, DPT-Flow-5000, DPT-Flow-2000 Installation Instructions And Owner's Manual
Copyright HK Instruments 2014 www.hkinstruments. Installation version 2.0 2014
IN S TA L L ATI ON
INSTRUCTIONS
AIR FLOW AND VELOCITY TRANSMITTERS
DPT-Flow Series
WARNING
• READ THESE INSTRUCTIONS CAREFULLY BEFORE
ATTEMPTING TO INSTALL, OPERATE OR SERVICE THIS
DEVICE.
• Failure to observe safety information and comply with
instructions can 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. Review
applications and national and local codes to assure that the
installation will be functional and safe. Use only experienced
and knowledgeable technicians to install this device.
INTRODUCTION
Thank you for choosing an HK Instruments DPT-Flow series air
flow transmitter. The DPT-Flow series is intended for use in commercial environments. The DPT-Flow measures air flow, velocity
and differential pressure. It is designed to be used in combination
with air flow measurement probes (i.e. FloXact) or with centrifugal
fans that provide differential pressure connections and K-values.
The DPT-Flow series of air flow transmitters is comprised of DPTFlow-1000, DPT-Flow-2000, DPT-Flow-5000 and DPT-Flow-7000
with measurement ranges of 0–1000 Pa, 0–2000 Pa, 0–5000 Pa
and 0–7000 Pa respectively. All models come with display and
manual pushbutton autozero. The DPT-Flow is available with optional autozero calibration.
DPT-Flow series devices are commonly used in HVAC/R systems
for:
• air flow monitoring across centrifugal fans and blowers
• in-duct air flow monitoring
• VAV applications
SPECIFICATIONS
Performance
Accuracy (at applied pressure):
Ranges < 125 Pa = ±2 Pa
Ranges 125 Pa = ±1,5 % Pa
(Accuracy specifications include: general accuracy,
temperature drift, line arit y, hysteresis, long term
stability, and repetition error)
Thermal effects:
Temperature compensated across the full spectrum of
capability
Overpressure:
Proof pres sure: 25 kPa
Zero point calibration:
Automatic autozero or
manual pushbutton
Response time:
1.0−20 s, selectable via menu
Technical Specifications
Media compatibility:
Dry air or non-aggressive gase s
Press ure units (select via menu):
Pa, kPa, mbar, inWC, mmWC
Pressure output scale (select via menu):
Measuring element:
Piezoresistive
Environment:
Operating temperature:
-10...50 °C
with autozero (-AZ) calibration -5...50 °C
Storage temperature:
-20...70 ° C
Humidity:
0 to 95 % rH, non condensing
Physical
Dimensions:
Case: 90.0 x 95.0 x 36.0 mm
Weight:
150 g
Mounting:
2 each 4.3 mm screw holes, one slot ted
Materials:
Case: ABS
Lid: PC
Duct connectors: ABS
Tubing: PVC
Protection standard:
IP54
Display
2-line display (12 characters/line)
Line 1: Volume or velocity measurement
Line 2: Pressure measurement
Size: 46.0 x 14.5 mm
Electrical connections:
4-screw terminal block
Wire: 12–24 AWG (0.2–1.5 mm2)
Cable entry:
Strain relief: M16
Knockout : 16 mm
Pressure fittings
Male Ø 5.0 mm and 6.3 mm
Electrical
Volt age :
Circuit: 3-wire (V Out, 24 V, GND)
Input: 24 VAC or VDC, ±10 %
Output: 0 –10 V, selectab le via jumper
Power consumption: <1.0 W
Resistance minimum: 1 kΩ
Current:
Circuit: 3-wire (mA Ou t, 24 V, GND)
Input: 24 VAC or VDC, ±10 %
Output: 4 –20 mA, selectable via jumper
Power consumption: <1.2 W
Maximum load: 50 0 Ω
Conformance
Meets req uirements for CE marking:
EMC Directive 2004/108/EY
RoHS Directive 2002/95/E Y
DPT-Flow-1000
DPT-Flow-
2000 DPT-Flow-5000 DPT-Flow-7000
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. 0-7 0
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 (sel ect via m enu):
Volume: m3/s, m3/hr, cfm, l/s
Velocity: m/s, ft/min
Units Range
m3/s 0.025-5 0
m3/hr 100-200,000
cfm 50-100,000
l/s 25-50,000
m/s 1-1 00
APPLICATIONS
Flow output scale (select via menu):
Copyright HK Instruments 2014 www.hkinstruments. Installation version 2.0 2014
SCHEMATICS
DIMENSIONAL DRAWINGS
IN STALLATION
Figure 1a - Surface mounting
STEP 1: MOUNTING THE DEVICE
1) Mount the device in the desired location (see step 1).
2) Open the lid and route the cable through the strain relief and
connect the wires to the terminal block(s) (see step 2).
3) The device is now ready for configuration.
WARNING! Apply power only after the device is properly
wired.
1) Select the mounting location (duct, wall, panel).
2) Use the device as a template and mark the screw holes.
3) Mount with appropriate screws.
Figure 1b - Mounting orientation
Figure 1c - Application connections
Connection for display
Terminal block
Pressure
sensor
Menu buttons
LED
SELECT
UP
DOWN
ZERO
V OUT
P OUT
24 V
GND
FLOW
PRESSURE
4–20 mA
Out
1–10 V
90.0
77.0
71.5
53.0
4.2
95.0
36.0
DPT-Flow
The pressure tubes are connected to a flow measurement probe (i.e. FloXact), or to the
measurement ports specified by the fan manufacturer. Please see the FloXact installation
guide or the fan manufacturer’s technical specifications for more information.
YES NO NO
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