Veris Industries PW2 SERIES Data Sheet

Pressure Monitoring | Wet Media Differential Pressure Transducer

PW2 SERIES

4 to 20 mA, 2-Wire Device

PW2

The PW2 Series 2-wire, 4 to 20 mA 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

Jumper selectable

The jumper-selectable output
switch for normal (4 to 20 mA) or
reverse (20 to 4 mA) operation
provides application flexibility

Rugged

Rugged, die-cast enclosure
provides NEMA 4 sealing

Selectable

Selectable differential units: psid
or bard

APPLICATIONS

• Monitoring and controlling
pump differential pressure

• Chiller/boiler differential
pressure drop

Dual sensor

Dual sensor design for improved
overpressure tolerance
eliminates the requirement for
a bypass valve assembly in most
applications

…

High stability

Jumper-controlled electronic
surge dampening for high
stability

Zero calibration

Pushbutton zero calibration – no
trim pots to adjust
accuracy and reduce callbacks
with automatic zero calibration

• CW/HW system differential
pressure

…maintain

SPECIFICATIONS

GENERAL

Input Power Class 2; 12 to 24 Vdc, loop powered (polarity

Maximum Current Draw 29 mA

Output 2-wire transmitter; user selectable 4 to 20 mA

Surge Damping Electronic; 5-second averaging

Zero Adjust Pushbutton auto-zero terminals

Housing Material White powder-coated aluminum

PRESSURE RANGES (SELECTABLE)

0 to 50 psi (0 to 3.45 barg)
(Gauge)

0 to 100 psig (0 to 6.89
barg) (Gauge)

0 to 250 psi (0 to 17.24 bar)
(Gauge)

SENSOR

Accuracy @ 25 °C** Range A, B, C: ±1% F.S.; Range D: ±2% F.S.***

Media Compatibility Media compatible with 17-4 PH stainless steel

Long Term Stability ±0.25% per year

Proof Pressure Max. 2x F.S. range

Burst Pressure Max. 5x F.S. range

insensitive)

(clipped & capped)*

0-5/10/25/50 psid (0-0.34/0.69/1.72/3.45 bard)
(Differential)

0-10/20/50/100 psid (Differential)
(0-0.69/1.38/3.45/6.89 bard) (Differential)

0-25/50/125/250 psid (Differential)
(0-1.72/3.45/8.62/17.24 bard) (Differential)

Temperature
Compensated Range

Media Temperature Limits -20 to 85 °C (-4 to 185 °F); 0 to 90% RH

Product Operating
Environment

WARRANTY

Limited Warranty 5 years

AGENCY APPROVALS

†

Available

* Minimum input voltage: 250 Ω loop = 12 Vdc; 500 Ω loop = 17 Vdc
**Accuracy combines linearity, hysteresis, and repeatability.
***FS is defined as full span of selected range in bi-direc tional mode.
EMC Conformance - CE option: Low voltage directive 2014/35/EU; EMC directive 2014/30/EU.
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 specification requirements).

† The CE mark indicates RoHS2 compliance. Please refer to the CE Declaration of Conformity
for additional details.

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)

non-condensing

-10 to 55 °C (14 to 130 °F); 0 to 90% RH
non-condensing

TM

HQ0001832.G 0117

WIRING DIAGRAM

Pressure Monitoring | PW2 Series

Polarity

Insensitive

4 to 20 mA

POWER SOURCE

12 to 24 Vdc

4 to 20mA IN

DIGITAL CONTROL

Digital Output

DIMENSIONAL DRAWING

REMOTE

ZERO

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

(57 mm)

Range (psi)

B
25
50

125

Range (bar)

B

1.72

3.45

8.62

2.2"

Bidirectional Operation

Input Conditions Result Outputs Read

LO PORT

0 psi
50 psi
50 psi
100 psi
100 psi

DP

+100 psi
+50 psi
0 psi

-50 psi

-100 psi

C
10
20
50

C

0.69

1.38

3.45

10
25

D

0.34

0.69

1.72

HI PORT

100 psi
100 psi
50 psi
50 psi

D

0 psi

5

MICROPROCESSOR PROVIDES DIGITAL SIGNAL
CONDITIONING

• Noise rejection reduces
fluctuating readings due to
noise or turbulence

• Surge damping prevents false

4-20mA

20mA
16mA
12mA
8mA
4mA

5.8"

(147 mm)

ORDERING INFORMATION

Local Display

PW2

Example:

L = LCD Display
X = No Display

NIST

N = NIST
X = None

XL 04 CPW2

Operational Range*

WET DIFFERENTIAL PRESSURE

LOW

03 = 0 to 50 psig/3 .45 barg
04 = 0 to 100 psig /6.89 barg
05 = 0 to 250 psig/17.24 barg

HIGH

US or EU

*Select operational range according to maximum gauge pressure, NOT
differential pressure.
Example: High gauge pressure=90 psig, Select 100 psig model (04).

(102 mm)

S = Standard
C = CE

4"

F.S.

PRESSURE

0

Noise Rejection

Surge Damping

Actual Pressure
Digitally Conditioned Output

TIME

Output Clamping

HQ0001832.G 0117

TM