Copyright HK Instruments 2017
www.hkinstruments.fi
Installation version 5.0 2017
INSTALLATION
INSTRUCTIONS
DIFFERENTIAL PRESSURE TRANSMITTERS
DPT-2W Series
•
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.
SPECIFICATIONS
Thank you for choosing an HK Instruments DPT series differential
pressure transmitter. The DPT series is intended for use in commer
-
cial environments. The DPT-2W series differential pressure trans
-
mitter provides a 4–20 mA loop output.
All DPT-2W series differential pressure transmitters are available
with display and/or flow linear output.
DPT-2W series devices are commonly used in HVAC/R systems for:
• fan, blower and filter monitoring
• pressure and flow monitoring
• valve and damper control
• pressure monitoring in cleanrooms
SPECIFICATIONS
Performance
Accuracy:
±1.5 % FS over operation temperature range:
-10...50 °C %/FS from highest pressure
range (including: general accuracy, temperature drift,
linearity, hysteresis, and repetition error)
Long term stability:
Typical 1 year: ±8 Pa; DPT-2W-2500
Thermal effects:
Temperature compensated across the full spectrum of
capability.
Overpressure:
Proof pressure: 25 kPa
Burst pressure: 30 kPa
Zero point calibration:
Manual pushbutton
Response time:
4.0 s or 0.8 s, selectable
Technical Specifications
Media compatibility:
Dry air or non-aggressive gases
Measuring units:
Pa
Measuring element:
Piezoresistive
Enviroment:
Operating temperature: -10...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 slotted
Materials:
Case: ABS
Lid: PC
Duct connectors: ABS
Tubing: PVC
Protection standard:
IP54
Display: (Optional)
3 1/2 digit LCD display
Size: 45.7 mm W x 12.7 mm H
Electrical connections:
2 screw terminal block
Wire: 12–24 AWG (0.2–1.5 mm
2
)
Cable entry:
Strain relief: M16
Conduit knockout: 16 mm
Pressure fittings:
Male 5.0 mm and 6.3 mm
Electrical
Voltage:
Circuit: 2-wire
Supply: 10–35 VDC
Supply (Current): 32 mA maximum
Output: 4–20 mA loop
Zero/Span output calibrated within ±0.08 mA
Maximum load =
Supply - 10 V
0,020 A
Minimum load: 20 Ω
Power consumption: <1.2 W
Conformance
Meets requirements for CE marking:
EMC Directive 2014/30/EU
RoHS Directive 2011/65/EU
WEEE Directive 2012/19/EU
INTRODUCTION
APPLICATIONS
WARNING
COMPANY WITH
MANAGEMENT SYSTEM
CERTIFIED BY DNV GL
= ISO 9001 = ISO 14001 =
RoHS 2
2011/65/EU