Copyright HK Instruments 2018
www.hkinstruments.fi
Installation version 6.0 2018
INSTALLATION
INSTRUCTIONS
DIFFERENTIAL PRESSURE TRANSMITTERS
DPT-R8 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. It is designed with six unit selections (Pa, kPa,
mbar, inchWC, mmWC, psi) and eight field selectable measurement
ranges (unidirectional and bi-directional) to meet your application
requirements. The DPT-R8 series is comprised of the DPT250-R8
with ranges from 25 Pa to 250 Pa, the DPT2500-R8 with ranges
from 100 Pa to 2500 Pa, and the DPT7000-R8 with ranges from
1000 Pa to 7000 Pa.
All DPT-R8 series differential pressure transmitters are available
with display and autozero calibration.
DPT-R8 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 (from applied pressure):
Models 250 and 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)
Thermal effects:
Temperature compensated 0...50 °C
Overpressure:
Proof pressure: 25 kPa
Burst pressure: 30 kPa
Zero point calibration:
Automatic autozero or manual pushbutton
Response time:
8.0 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, psi, selectable via
jumper
Measuring element:
MEMS, no flow-through
Environment:
Operating temperature: -20...50 °C,
-40C model: -40...50 °C
AZ-model: -20...50 °C,
Models with autozero calibration: -5...50 °C
Storage temperature: -40...70 °C,
-40C model: -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:
2 each 4.3 mm screw holes, one slotted
Materials:
Case: ABS
Lid: PC
Duct connectors: ABS
Tubing: PVC
Protection standard:
IP54
Display (Optional)
2-line display (12 characters/line)
Line 1: active measurement
Line 2: units
Electrical connections:
4-screw terminal block
Wire: 0.2–1.5 mm
2
(12–24 AWG)
Cable entry: M16
Pressure fittings:
Male ø 5,0 mm and 6,3 mm
+ High pressure
− Low pressure
Electrical
Voltage:
Circuit: 3-wire (V Out, 24 V, GND)
Input: 24 VAC or VDC, ±10 %
Output: 0–10V
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
Power consumption: <1.2 W,
-40C model: <4.2 W when <0 °C
Maximum load: 500 Ω
Minimum load: 20 Ω
Conformance
Meets the 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
