HK Instruments PS Series Installation Instructions

INTRODUCTION
Thank you for choosing an HK Instruments PS Series Differential
Pressure Switch. The PS Series is intended for use in commercial
environments. It is designed with eld selectable setpoint adjustment to
meet your job requirements.
The PS Series Differential Pressure Switches is comprised of the PS2.5
with range from 0.15 − 2.50 inWC and the DPT5.0 with range from 0.5 −
5.0 inWC. All PS Series Differential Pressure Switches are available with
NIST standard calibration certi cates.
APPLICATIONS
PS series devices are commonly used in HVAC/R systems for:
• fan, blower and filter monitoring
• pressure and flow monitoring
• valve and damper monitoring
SPECIFICATIONS
Performance
Accuracy (at applied pressure)
At Low Limit (Typical):
PS2.5 = ± 0.02 inWC
PS5.0 = ± 0.04 inWC
Overpressure:
Proof Pressure: 100 inWC
Burst Pressure: 200 inWC (50kPa)
Technical Speci cations
Media Compatibility:
Dry air or non-aggressive gases
Measuring units:
inWC
Measuremewnt Range:
PS2.5 = 0.15 − 2.5 inWC
PS5.0 = 0.50 − 5.0 inWC
Environment:
Operating Temperature: -4 − 140°F (-20 − 60°C)
Storage Temperature: -40 − 158°F (-20 − 85°C)
Humidity: 0 to 95% RH, non condensing
Copyright HK Instruments
DIFFERENTIAL PRESSURE SWITCHES - AIR
PS Series
Physical
Case:
Dimensions: 4.125" x 2.875" x 2.5"
(105 x 73 x 63)mm
Weight: 5.3 oz (150 gm)
Mounting: 2 each 3/16" (4.3mm) screw holes,
one slotted
Materials: Case: ABS (UL 94 V-0 Approved)
Cover: PC (UL 94 V-0 Approved)
Membrane: Silicone
Protection standard: IP54 / NEMA3
Electrical Connections:
3 screw terminals
Wire: 12-24AWG (0.2 – 1.5 mm
Cable Entry:
Strain Relief: M16
Knockout : 0.625" (16mm)
Pressure Fittings:
Pressure Fittings integral to case
Material: ABS (UL 94 V-0 Approved)
Size: 3/16" (5.0mm)
Markings:
+ High pressure
− Low pressure
WARNING
●READ THESE INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING
TO INSTALL, OPERATE OR SERVICE THIS DEVICE.
●Failure to observe safety information and comply with instructions could
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 re 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
speci cations and performance characteristics are not designed or
controlled by HK Instruments, Inc. Review applications and national an
local codes to assure that the installation will be functional and safe. Use
only experienced, knowledgeable, technicians to install this device.
Electrical
Input: 24 – 250 VAC
Output: NO / NC circuit
Switching Differential:
PS2.5 = 0.08 inWC
PS5.0 = 0.30 inWC
Conformance
Meets requirements for CE marking:
EMC directive 2004/108/EY
RoHS Directive 2002/95/EY
Low voltage 73/32/EEC
)
2
Meets safety requirements for electrical
equipment for measurement, control, and
laboratory use:
ETL marking, standard IEC61010-1
Product is tested and meets the NRTL product-
approval requirements.
INSTALLATION
INSTRUCTIONS
Installation Version 1.0 2012