HK Instruments DPT-Flow Series Installation Instructions

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 differ-
ential pressure. It is designed to be used in combination with air flow
measuring probes (i.e. FloXact), dampers or with centrifugal fans
that provide differential pressure connections and K-values.
The DPT-Flow series of air flow transmitters is comprised of DPT-
Flow-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 zero point calibration. Optional autozero calibration is
also available.
APPLICATIONS
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 (from applied pressure):
Models 1000 and 2000:
Pressure < 125 Pa = 1 % + ±2 Pa
Pressure > 125 Pa = 1 % + ±1 Pa
Models 5000 and 7000:
Pressure < 125 Pa = 1.5 % + ±2 Pa
Pressure > 125 Pa = 1.5 % + ±1 Pa
(Accuracy specifications include: general accuracy,
linearity, hysteresis, long term
stability, and repetition error)
Overpressure:
Proof pressure: 25 kPa
Burst pressure: 30 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 gases
Pressure units (select via menu):
Pa, kPa, mbar, inWC, mmWC, psi
Pressure output scale (select via menu):
DPT-Flow-1000 2000
DPT-Flow-
Pa 100-1,000 200-2,000
kPa 0.1-1.0 0.2-2.0
mbar 1-10 2.0-20
mmWC 10-100 20-200
inWC 0.4-4.0 0.8-8.0
Flow units (select via menu):
Volume: m3/s, m3/hr, cfm, l/s, none
Velocity: m/s, ft/min
Copyright HK Instruments 2022
AIR FLOW AND VELOCITY TRANSMITTERS
DPT-Flow Series
Flow output scale (select via menu):
Units
m3/s
m3/hr
cfm
l/s
m/s
f/min
Measuring element:
MEMS, no flow-through
Environment:
Operating temperature: -20...50 °C,
-40C model: -40...50 °C
Models with autozero calibration: -5...50 °C
Temperature compensated range 0...50 °C
Storage temperature: -40...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:
DPT-Flow-5000 DPT-Flow-7000
2 each 4.3 mm screw holes, one slotted
500-5,000 700-7,000
Materials:
0.5-5.0 0.7-7.0
Case: ABS
Lid: PC
5.0-50 7.0-70
Protection standard:
50-500 70-700
IP54
Display
2.0-20 2.5-30
2-line display (12 characters/line)
Size: 46.0 x 14.5 mm
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.
Range
0.025-50
100-200,000
50-100,000
25-50,000
1-100
200-20,000
Line 1: Volume or velocity measurement
Line 2: Pressure measurement
www.hkinstruments.fi
Electrical connections:
4-screw terminal block
Wire: 0.2–1.5 mm (16–24 AWG)
2
Cable entry:
Strain relief: M16
Knockout : 16 mm
Pressure fittings
Male ø 5.0 mm and 6.3 mm
Electrical
Voltage:
Circuit: 3-wire (V Out, 24 V, GND)
Input: 24 VAC or VDC, ±10 %
Output: 0–10 V / 2-10 V, selectable via jumper
Power consumption: <1.0 W
-40C model: <4.0 W when <0 °C
Resistance minimum: 1 kΩ
Current:
Circuit: 3-wire (mA Out, 24 V, GND)
Input: 24 VAC or VDC, ±10 %
Output: 4–20 mA, selectable via jumper
Power consumption: <1.2 W
-40C model: <4.2 W when <0 °C
Maximum load: 500 Ω
Minimum load: 20 Ω
Conformance
Meets requirements for:
CE:
EMC: 2014/30/EU
RoHS: 2011/65/EU
WEEE: 2012/19/EU
Installation version 9.0 2022
INSTALLATION
INSTRUCTIONS
UKCA:
S.I. 2016/1091
S.I. 2012/3032
S.I. 2013/3113
RoHS
COMPLIANT