HK Instruments DPT-Ctrl Series Installation Instructions

INTRODUCTION
Thank you for choosing an HK Instruments DPT-Ctrl series air han-
dling controller with differential pressure or airflow transmitter. The
DPT-Ctrl series PID controllers are engineered for building automa-
tion in the HVAC/R industry. With the built-in controller of the DPT-
Ctrl it is possible to control the constant pressure or flow of fans,
VAV systems or dampers. When controlling air flow, it is possible to
select a fan manufacturer or a common measuring probe that has a
K-value.
APPLICATIONS
DPT-Ctrl series devices are commonly used in HVAC/R systems for:
• Controlling differential pressure or air flow in air handling systems
• VAV applications
• Controlling parking garage exhaust fans
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
(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
Controller parameter (selectabe via menu):
Setpoint 0...2500/7000 Pa
P-band 0...100 000
I-time 0...1000 s
D-factor 0...100
Pressure units (select via menu):
Pa, kPa, mbar, inWC, mmWC, psi
Flow units (select via menu):
Volume: m /s, m /hr, cfm, l/s
3 3
Velocity: m/s, ft/min
Measuring element:
MEMS, no flow-through
Copyright HK Instruments 2020
AIR HANDLING CONTROLLER
DPT-Ctrl Series
• READ THESE INSTRUCTIONS CAREFULLY BEFORE
• Failure to observe safety information and comply with
• To avoid electrical shock or damage to equipment, disconnect
• To avoid potential fire and/or explosion do not use in potentially
• Retain these instructions for future reference.
• This product, when installed, will be part of an engineered
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:
2 each 4.3 mm screw holes, one slotted
Materials:
Case: ABS
Lid: PC
Protection standard:
IP54
Display
2-line display (12 characters/line)
Line 1: Direction of control output
Line 2: Pressure or air flow measurement,
selectable via menu
Size: 46.0 x 14.5 mm
Electrical connections:
4-screw terminal block
Wire: 0.2–1.5 mm (12–24 AWG)
2
Cable entry:
Strain relief: M16
Knockout : 16 mm
Pressure fittings
5.2 mm barbed brass
+ High pressure
− Low pressure
www.hkinstruments.fi
WARNING
ATTEMPTING TO INSTALL, OPERATE OR SERVICE THIS
DEVICE.
instructions can result in PERSONAL INJURY, DEATH AND/OR
PROPERTY DAMAGE.
power before installing or servicing and use only wiring with
insulation rated for full device operating voltage.
flammable or explosive atmospheres.
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.
Electrical
Voltage:
Circuit: 3-wire (V Out, 24 V, GND)
Input: 24 VAC or VDC, ±10 %
Output: 0–10 V, selectable via jumper
Power consumption: <1.0 W
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
Maximum load: 500 Ω
Minimum load: 20 Ω
Conformance
Meets requirements for CE marking:
EMC Directive 2014/30/EU
RoHS Directive 2011/65/EU
WEEE Directive 2012/19/EU
COMPANY WITH
MANAGEMENT SYSTEM
CERTIFIED BY DNV GL
= ISO 9001 = ISO 14001 =
INSTALLATION
INSTRUCTIONS
RoHS 2
2011/65/EU
Installation version 9.0 2020