Veris PW2 Datasheet

PW2 SERIES

Wet Media Diﬀerential Pressure Transducer

VERIS INDUSTRIES

4-20 mA, 2-Wire Device

DESCRIPTION

The PW2 Series 2-wire, 4-20mA wet/wet pressure transducers incorporate microprocessor proled 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, lters, heat exchangers, compressors, and other non-corrosive wet media applications.

Output Clamping

F.S.

Noise Rejection

PRESSURE

Surge Damping

Actual Pressure Digitally Conditioned Output

PRESSURE

Microproce ssor provides digita l signal condition ing

● Noise rejection reduces uctuating readings due to noise or turbulence

● Surge damping prevents false alarms by averaging fast peaks

TIME

PW2

APPLICATIONS

● Monitoring and controlling pump dierential pressure

● Chiller/boiler dierential pressure drop

● CW/HW system dierential pressure

FEATURES

● The jumper-selectable output switch for normal (4-20mA) or reverse

(20-4mA) operation provides application exibility

● Rugged, die-cast enclosure provides NEMA 4 sealing

● Selectable dierential 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 dierential pressure

with easy readability

Year

SPECIFICATIONS

Input Power 12 to 24VDC, loop powered Maximum Current Draw 29mA Output 2-wire transmitter; user s electable 4-20mA (clipped and c apped) † Accurac y @ 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% pe r 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 produc t 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 Fittin gs 1/8" NPT female thread, 17-4 PH stainless

† Minimum inp ut voltage: 250 Ω loop = 12VDC; 50 0 Ω loop = 17VDC * Accuracy combine s linearity, hysteresis, and repe atability. ** FS is den ed as full span of selected ra nge in bi-directio nal mode. EMC Conformance: Low voltag e directive 2006/95/EC; EMC directive 2004/108/EC. EMC Special Note: Conne ct this product to a DC dist ribution network or a n AC/DC power adaptor with pro per surge protection (EN 61000-6 -1:2007 specication req uirements).

800.354.8556

Warranty

+1 503.598.4564

www.veris.com

HQ0001832.B 01131

800.354.8556

+1 503.598.4564

APPLICATION/WIRING DIAGRAM

www.veris.com

Polarity

Insensitive

REMOTE

4-20mA

ZERO

POWER SOURCE

12 to 24 VDC

4-20mA IN

DIGITAL CONTROL

Digital Output

DIMENSIONAL DRAWING

ZERO

A-High B-Mid High C-Mid Low D-Low

Pressure Range

Model PW2-03 PW2-04 PW2-05

Port Swap/Norm Bi-Dr/Normal Slow Avg/Fast Norm Analog Rev/Norm Bar/PSI

Settings

Default Settings in bold. Insert jumper to activate other features.

100 250

3.45

6.89

17.24

1.72

3.45

8.62

Range (psi)

B 25 50

125

Range (bar)

C 10 20 50

0.69

1.38

3.45

5 10 25

0.34

0.69

1.72

Bidirectional Operation

Input Conditions Result Outputs Read

HI PORT

100 psi 100 psi 50 psi 50 psi 0 psi

LO PORT

0 psi 50 psi 50 psi 100 psi 100 psi

+100 psi +50 psi 0 psi

-50 psi

-100 psi

4-20mA

20mA 16mA 12mA 8mA 4mA

WET DIFFERENTIAL PRESSURE

5.8"

(147 mm)

LOW

ORDERING INFORMATION

Local Display

PW2

L = LCD Display X = No Display

Example:

PW2 L X 04 C

NIST

N = NIST X = None

Operational Range

03 = 0-50 psi/ 3.45 bar 04 = 0-100 psi/6.89 bar 05 = 0-250 psi/17.24 bar

HIGH

2.2"

(57 mm)

pressure

(102 mm)

Available

US or EU

S = Standard C = CE

ACCESSORIES

Bypass Valve assemblies (AA14A) PW installed on bypass valve manifold (AA16A) Snubbers (AA11, AA12), steam siphon (AA13)

AA11

AA13

AA14A

Select operational range according to maximum gauge pressure, NOT dierential pressure.

Example: High gauge pressure=90 psig, Select 100 psig model (04).

HQ0001832.B 01131