Copyright HK Instruments 2019
www.hkinstruments.fi
Installation version 8.0 2019
INSTALLATION
INSTRUCTIONS
DIFFERENTIAL PRESSURE TRANSMITTERS
DPT-Dual 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-Dual series dif-
ferential pressure transmitter. DPT-Dual combines two differential
pressure transmitters into one device. It offers a possibility to meas-
ure pressure from two different points. DPT-Dual is designed with
five unit selections (Pa, kPa, mbar, inchWC, mmWC) and eight field
selectable measurement ranges (unidirectional and bi-directional) to
meet your application requirements. The DPT-Dual series is com-
prised of the DPT-Dual-2500 with ranges from -100–2500 Pa and
DPT-Dual-7000 with ranges from 0–7000 Pa.
DPT-Dual series devices are commonly used in HVAC/R
systems for:
• fan, blower and filter monitoring
• pressure and flow monitoring
• valve and damper control
SPECIFICATIONS
Performance
Accuracy (from applied pressure):
Model 2500:
Pressure < 125 Pa = 1 % + ±2 Pa
Pressure > 125 Pa = 1 % + ±1 Pa
Model 7000:
Pressure < 125 Pa = 1.5 % + ±2 Pa
Pressure > 125 Pa = 1.5 % + ±1 Pa
(including: general accuracy, linearity, hysteresis, long
term stability, and repetition error)
Overpressure:
Proof pressure: 25 kPa
Burst pressure: 30 kPa
Zero point calibration:
Manual pushbutton
Response time:
4.0 s or 0.8 s, selectable via jumper
Technical Specifications
Media compatibility:
Dry air or non-aggressive gases
Measuring units:
Pa, kPa, mbar, inchWC, mmWC, selectable via jumper
Measuring element:
MEMS no flow-through
Environment:
Operating temperature: -20...+50 °C
Temperature compensated range 0...+50°C
Storage temperature: -40...+70 °C
Humidity: 0 to 95 % rH, non condensing
Physical
Dimensions:
Case: 102.0 x 71.5 x 36.0 mm
Weight:
150 g, with accessories 290 g
Mounting:
2 each 4.3 mm screw holes, one slotted
Materials:
Case: ABS
Lid: PC
Pressure inlets: Brass
Duct connectors: ABS
Tubing: PVC
Protection standard:
IP54
Display (Optional)
2-line display (12 characters/line)
Line 1: active measurement, inlet A
Line 2: active measurement, inlet B
Electrical connections:
4 spring loades terminals, max 1.5 mm
2
Wire: 0.2–1.5 mm
2
(12–24 AWG)
Cable entry: M20
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: 2x 0...5/10V (selectable via jumper)
Power consumption: <1.0 W
Resistance minimum: 1 kΩ
Conformance
Meets requirements for CE marking:
EMC Directive 2014/30/EU
RoHS Directive 2011/65/EU
WEEE Directive 2012/19/EU
INTRODUCTION
WARNING
APPLICATIONS
RoHS 2
2011/65/EU
COMPANY WITH
MANAGEMENT SYSTEM
CERTIFIED BY DNV GL
= ISO 9001 = ISO 14001 =
