Veris Industries PW2 SERIES Datasheet - Manual

PRESSURE
VERIS INDUSTRIES
800.354.8556 +1 503.598.4564 www.veris.com
4-20 mA, 2-Wire Device
Wet Media Differential
Pressure Transducer
DESCRIPTION
The PW2 Series 2-wire, 4-20mA wet/wet pressure transducers incorporate
microprocessor profiled sensors for exceptional accuracy and reliability. Easy to use
and designed to provide exceptional installation savings, the PW2 Series is ideal for
measuring pressure across pumps, filters, heat exchangers, compressors, and other
non-corrosive wet media applications.
APPLICATIONS
● Monitoring and controlling pump differential pressure
● Chiller/boiler differential pressure drop
● CW/HW system differential pressure
FEATURES
● The jumper-selectable output switch for normal (4-20mA) or reverse
(20-4mA) operation provides application flexibility
● Rugged, die-cast enclosure provides NEMA 4 sealing
● Selectable differential units: psid or bard
● Dual sensor design for improved overpressure tolerance... eliminates
the requirement for a bypass valve assembly in most applications
● Jumper-controlled electronic surge dampening for high stability
● Pushbutton zero calibration – no trim pots to adjust......maintain
accuracy and prevent callbacks with automatic zero calibration
● Jumper-selectable port swap feature eliminates costly replumbing when
the high and low ports are improperly plumbed...change the jumper
position from normal to swap – problem solved!
● Switch-selectable pressure ranges...fewer models to order and stock
●
LCD displays high pressure, low pressure, and differential pressure
with easy readability
Microprocessor provides digital signal conditioning
● Noise rejection reduces fluctuating readings due to noise or turbulence
● Surge damping prevents false alarms by averaging fast peaks
SPECIFICATIONS
Input Power 12 to 24VDC, loop powered
Maximum Current Draw 29mA
Output 2-wire transmitter; user selectable 4-20mA (clipped and capped) †
Accuracy @ 25°C* Range A, B, C: ±1% F.S.; Range D: ±2% F.S.**
Surge Damping Electronic; 5-second averaging
Pressure Ranges (Selectable):
0-50 psi (0-3.45 bar) 0-5/10/25/50 psid (0-0.34/0.69/1.72/3.45 bard)
0-100 psi (0-6.89 bar) 0-10/20/50/100 psid (0-0.69/1.38/3.45/6.89 bard)
0-250 psi (0-17.24 bar) 0-25/50/125/250 psid (0-1.72/3.45/8.62/17.24 bard)
Product Operating Environment -10° to 55°C (14° to 130°F); 0 to 90%RH noncondensing
Long Term Stability ±0.25% per year
Zero Adjust Pushbutton auto-zero
Housing Material White powder-coated aluminum
Sensor:
Media Compatibility Media compatible with 17-4 PH stainless steel
Proof Pressure Max. 2x F.S. range
Burst Pressure Max. 5x F.S. range
Temperature Compensated Range 0° to 50°C (32° to 122°F); TC Zero <±1.5% of product F.S. per sensor ; TC Span<±1.5% of product F.S. per sensor, (2 sensors per unit)
Media Temperature Limits -20° to 85°C (-4° to 185°F); 0 to 90% RH non-condensing
Fittings 1/8" NPT female thread, 17-4 PH stainless
† Minimum input voltage: 250 Ω loop = 12VDC; 500 Ω loop = 17VDC
* Accuracy combines linearity, hysteresis, and repeatability. ** FS is defined as full span of selected range in bi-directional mode.
EMC Conformance: Low voltage directive 2006/95/EC; EMC directive 2004/108/EC.
EMC Special Note: Connect this product to a DC distribution network or an AC/DC power adaptor with proper surge protection (EN 61000-6-1:2007 specification requirements).
Year
Warranty
5
PW2
0
Actual Pressure
Digitally Conditioned Output
TIME
F.S.
PRESSURE
Noise Rejection
Surge Damping
Output Clamping
PW2 SERIES
HQ0001832.B 01131