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

0

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

5

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

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.

A

50

100
250

A

3.45

6.89

17.24

1.72

3.45

8.62

Range (psi)

B
25
50

125

Range (bar)

B

C
10
20
50

C

0.69

1.38

3.45

D

5
10
25

D

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

DP

+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

4"

(102 mm)

Available

1

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

1

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