WIKA P-30, P-31 Specifications

Electronic
pressure measurement

Pressure transmitter for precision measurements
Model P-30, standard version

Model P-31, ush version

for further approvals
see page 5

Applications

■

Measurement and test benches

■

Calibration technology

■

Laboratories

■

Plant construction and machine building

Special features

WIKA data sheet PE 81.54

■

Accuracy 0.1 %, without additional temperature error in a
range of 50 ... 140 °F (10 ... 60 °C)

■

Optional accuracy of 0.05 % (full scale) available

■

Fast measuring rates up to 1 kHz

■

Analogue, USB and CANopen output signals available

■

On-site calibration possible using product software

Description

Precise

The model P-30 and P-31 pressure transmitters have been
developed for precision measurements. Through the use of a
special WIKA pressure sensor, precision measurements with
a maximum measuring deviation of as low as 0.05 % of span
are guaranteed. Due to their active temperature compensa­tion these pressure transmitters have no additional tempera­ture error in the range of 50 ... 140 °F (10 ... 60 ° C).

Fast

The high measuring and output rates of up to 1 kHz make the
measured value available as quickly as possible.

Compact

The compact design makes the pressure transmitter ideal for
mounting into test benches, such as 19" racks.

Fig. left: Pressure transmitter model P-30

Fig. right: Pressure transmitter model P-31

Versatile

The models P-30 and P-31 oer a wide selection of electrical

connections, process connections, and measuring ranges,
and output signals. In addition to the standard analog signals,
USB and CANopen

Via a USB service interface and the WIKA conguration

software "EasyCom", the models P-30 and P-31 can quickly
and easily be adjusted on site.

Thanks to the simple-to-use software "Wika data logger“, the
USB version can also be used to save measured values and
create customised reports.



versions are also available.

Page 1 of 8WIKA data sheet PE 81.54 ∙ 02/2016

Measuring ranges

Relative pressure

bar Measuring range 0 ... 0.25 0 ... 0.4 0 ... 0.6 0 ... 1 0 ... 1.6 0 ... 2.5 0 ... 4

Overpressure limit 1.5 2.4 3.6 4 6.4 7.5 12

Measuring range 0 ... 6 0 ... 10 0 ... 16 0 ... 25 0 ... 40 0 ... 60 0 ... 100

Overpressure limit 18 30 48 75 80 120 200

Measuring range 0 ... 160 0 ... 250 0 ... 400 0 ... 600 0 ... 1,000

Overpressure limit 320 500 800 1,200 1,500

psi Measuring range 0 ... 5 0 ... 10 0 ... 15 0 ... 25 0 ... 30 0 ... 50 0 ... 100

Overpressure limit 20 40 45 75 90 150 300

Measuring range 0 ... 160 0 ... 200 0 ... 300 0 ... 500 0 ... 1,000 0 ... 1,500 0 ... 2,000

Overpressure limit 480 600 900 1,000 1,500 2,250 3,000

Measuring range 0 ... 3,000 0 ... 5,000 0 ... 10,000

Overpressure limit 4,500 7,500 15,000

1) not available for model P-31

Absolute pressure

bar Measuring range 0 ... 0.25

Overpressure limit 1.5 2.4 3.6 4 3.6 4.8 7.5

Measuring range 0 ... 4 0 ... 6 0 ... 10 0 ... 16 0 ... 25

Overpressure limit 12 18 30 48 48

psi Measuring range 0 ... 5 0 ... 10 0 ... 15 0 ... 25 0 ... 30 0 ... 50 0 ... 100

Overpressure limit 20 40 45 75 90 150 300

Measuring range 0 ... 160 0 ... 200 0 ... 300

Overpressure limit 480 600 600

2) only available with an accuracy of 0.1 % of spann

2)

0 ... 0.4 0 ... 0.6 0 ... 1 0.8 ... 1.2 2)0 ... 1.6 0 ... 2.5

1)

Vacuum and +/- measuring range

bar Measuring range -1 … 0 -0.6 … 0 -0.4 … 0 -0.25 … 0 -1 … +0.6

Overpressure limit 1.5 1.5 1.5 1.5 3.2

Measuring range -1 … +1 -1 … +1.5 -1 … +3 -1 … +5 -1 … +9

Overpressure limit 4 5 8 12 20

Measuring range -1 … +15

Overpressure limit 32

psi Measuring range -30 inHg ... 0 -30 inHg ... +15 -30 inHg ... +30 -30 inHg ... +50 -30 inHg ... +100

Overpressure limit 22.5 60 90 135 240

Measuring range -30 inHg ... +160 -30 inHg ... +200

Overpressure limit 360 450

The given measuring ranges are also available in mbar, kg/cm2 and MPa.
Other measuring ranges on request

Vacuum resistance

Ye s

WIKA data sheet PE 81.54 ∙ 02/2016Page 2 of 8

Output signal

Accuracy data

Signal type Signal

Current (2-wire) 4 ... 20 mA
Current (3-wire) 4 ... 20 mA

0 ... 20 mA

Voltage (3-wire) DC 0 ... 10 V

DC 0 ... 5 V
USB per P-30/P-31 interface protocol
CANopen



per CiA DS404

Voltage supply

Power supply

The permissible power supply depends on the corresponding
output signal.

■

4 ... 20 mA (2-wire): DC 9 ...30 V

■

4 ... 20 mA (3-wire): DC 9 ...30 V

■

0 ... 20 mA (3-wire): DC 9 ...30 V

■

DC 0 ... 5 V: DC 9 ...30 V

■

DC 0 ... 10 V: DC 14 ... 30 V

■

USB: DC 4,5 ... 5,5 V

■

CANopen

Total current consumption

The total current consumption is dependent on the respective
signal type.

■

Current (2-wire): max. 25 mA

■

Current (3-wire): max. 45 mA

■

Voltage (3-wire): max. 10 mA

■

USB: 40 mA

■

CANopen

Load

■

Current (2-wire): ≤ (power supply - 9 V) / 0,02 A

■

Current (3-wire): ≤ (power supply - 9 V) / 0,02 A

■

Voltage (3-wire):



: DC 9 ...30 V



: 60 mA

> max. output signal / 1 mA

Accuracy at reference conditions

Accuracy

Standard ≤ ±0,1 % of span
Option ≤ ±0,05 % of span

1) For +/- measuring ranges and measuring range ≤ 0.4 bar on request

1)

Including non-linearity, hysteresis, non-repeatability, zero

oset and end value deviation (corresponds to measured

error per IEC 61298-2). Calibrated in vertical mounting
position with process connection facing downwards.

Non-linearity (per IEC 61298-2)

≤ ±0.04 % of span BFSL

Temperature error

In the range of -4 ... 176 °F (-20 ... +80 °C) the instrument is
actively compensated.

■

-4 ... 50 °F (-20 ... +10 °C): ≤ ±0,2 % of span/10 K

■

50 ... 140 °F (10 ... 60 °C): no additional error

■

140 ... 176 °F (60 ... 80 °C): ≤ ±0,2 % of span/10 K

1) For the optional accuracy at reference conditions of ≤ ±0.05 % of span there is an ad­ditional temperature error of ≤ ±0.05 % of span.

1)

Total error band 50 ... 140 °F (10 ... 60 °C)

≤ ±0.1 % of span

Long-term stability

≤ ±0.1 % of span/year

Adjustability

Adjustment via the "EasyCom 2011" or "EasyCom CANopen®"
software

Zero point: -5 ... +10 % of span
Span: -50 ... +5 % of span

Measuring rate

The measuring rate is dependent on the respective signal
type.

■

2-wire: 2 ms

■

3-wire 1 ms

■

USB 3 ms

■

CANopen



: 1 ms

WIKA data sheet PE 81.54 ∙ 02/2016

Page 3 of 8

1

2

3

4

3

1

2

Reference conditions

Electrical connections

Temperature

59 ... 77 °F (15 ... 25 °C)

Atmospheric pressure

12. 5 ... 15.4 psi (860 ... 1,060 mbar)

Humidity

45 ... 75 % relative

Power supply

■

DC 24 V

■

DC 5 V with USB version

Warm-up time

< 10 min

Mounting position

Process connection lower mount (LM)

Operating conditions

Ingress protection (per IEC 60529)

The ingress protection depends on the type of electrical
connection.

■

Angular connector DIN 175301-803 A: IP 65

■

Circular connector M12 x 1 (4-pin): IP 67

■

Circular connector M16 x 0.75 (5-pin): IP 67

■

Bayonet connector: IP 67

■

CANopen M12 x 1 (5-pin): IP 67

■

USB: IP 67

■

Cable outlet: IP 67

Short-circuit resistance

■

S+ vs. U-

■

CAN-High/CAN-Low vs. U+/U

-

Reverse polarity protection

U+ vs. U

-

Overvoltage protection

DC 36 V (not with USB version)

Insulation voltage

DC 500 V

Connection diagrams

Circular connector M12 x 1 (4-pin)

2-wire 3-wire

U

1 1

+

U

3 3

-

- 4

S

+

Angular connector DIN 175301-803 A

2-wire 3-wire

U

1 1

+

U

2 2

-

- 3

S

+

Circular connector M16 x 0.75 (5-pin)

2-wire 3-wire

U

3 3

+

U

1 4

-

- 1

S

+

The stated ingress protection only applies when plugged in
using mating connectors that have the appropriate ingress
protection.

Vibration resistance

10 g (IEC 60068-2-6, under resonance)

Shock resistance

200 g (IEC 60068-2-27, mechanical)

Service life

10 million load cycles

Free fall test

The instrument is resistant to an impact onto concrete from a
height of 3.3 ft (1 m).

Temperatures

■

Ambient: -4 ... 176 °F (-20 ... +80 °C)

■

Medium: -4 ... 221 °F (-20 ... +105 °C)

■

Storage: -40 ... 185 °F (-40 ... +85 °C)

Bayonet connector

2-wire 3-wire

U

A A

+

U

B B

-

- C

S

+

Circular connector M12 x 1 (5-pin), CANopen

2-wire

U

+

U

-

Shield 1

CAN-High

CAN-Low

2

3

4

5

Cable outlet unshielded

2-wire 3-wire

U

brown brown

+

U

blue blue

-

- black

S

+

Cable lengths on request.



WIKA data sheet PE 81.54 ∙ 02/2016Page 4 of 8

Process connections

CE conformity

Model P-30

Standard Thread size

EN 837 G ¼ B

G ¼ female

G ½ B
DIN 3852-E G ¼ A
ANSI/ASME B1.20.1 ¼ NPT

½ NPT

- M18 x 1.5 male with G ¼ female

- G ½ male with G ¼ female

Other connections on request

Model P-31

Standard Thread size

EN 837 G ½ B with ush diaphragm

G 1 B with ush diaphragm

Sealings

Thread size Standard Option

G ¼ B Without Cu

Stainless steel

G ½ B Without Cu

Stainless steel

G ¼ A Without NBR

FPM/FKM

Pressure equipment directive

97/23/EC, PS > 200 bar; module A, pressure accessory

EMC directive

2004/108/EC, EN 61326 emission (group 1, class B) and
immunity (industrial application)

Approvals

■

GOST-R, import certicate, Russia

■

CRN, safety (e.g. electr. safety, overpressure, ...), Canada

Certicates

■

Accuracy test report (included in the delivery)

■

2.2 test report per EN 10204

■

3.1 inspection certicate per EN 10204

1) option

Approvals and certicates, see website

1)

1)

For all other process connections no sealings are available.

Materials

Wetted parts

■

Stainless steel

■

Additionally Elgiloy® for measuring ranges > 25 bar

■

For sealing materials see "Process connections"

Non-wetted parts

Stainless steel

Manufacturer’s declaration

RoHS conformity

Yes, instruments with bayonet connector are not
RoHS-compliant

WIKA data sheet PE 81.54 ∙ 02/2016

Page 5 of 8

~

~

Dimensions in mm

Pressure transmitters

with M12 x 1 circular connector with M16 x 0.75 circular connector

with angular connector
DIN 175301-803 form A

with cable outlet

with bayonet connector

with USB connector type A

~

~

WIKA data sheet PE 81.54 ∙ 02/2016Page 6 of 8

Process connections for model P-30

G L1

G ¼ A DIN 3852-E 12

G L1 L2 L3 D1

G ¼

20 13 10 Ø 25

Process connections for model P-31

G L1

G ¼ B EN 837 13
G ½ B EN 837 20

G1 G2 L1 L2 L3

G ½ B G ¼ 20 15,5 13

G L1

¼ NPT 13
½ NPT 19

G1 G2 L1 L2 L3

M18 x 1,5 G ¼ 20 12 9

G L1 L2 L3 D1

G ½ B

23 20,5 10 Ø 18

G1 L1 L2 L3 D1

G 1 B 23 20,5 10 30

Accessories

CANopen design

Designation Order no.

Y-connector (M12 x 1 female connector, male/female connector)

Terminating resistor (120 Ω, M12 x 1 connector)

Bus cable 0.5 m (M12 x 1 male/female connector)
Bus cable 2 m (M12 x 1 male/female connector)
Software EasyCom CANopen, incl. PCAN-USB adapter, cable set and power supply
P-30/P-31 software CD

Analogue design

Designation Order no.

P-30/P-31 USB service interface, incl. WIKA software CD

Software

The full software is available to download as freeware from the following path.
www.wika.com / Download / Software / Electronic Pressure Measurement

2344526

2308274

2308240

2308258

7483167

11478901

13193075

WIKA data sheet PE 81.54 ∙ 02/2016

Page 7 of 8

Ordering information

Model / Measuring range / Output signal / Accuracy at reference conditions / Process connection / Sealing / Electrical connection

© 2011 WIKA Alexander Wiegand SE & Co. KG, all rights reserved.
The specications given in this document represent the state of engineering at the time of publishing.
We reserve the right to make modications to the specications and materials.

Page 8 of 8

WIKA data sheet PE 81.54 ∙ 02/2016

WIKA Instrument Corporation

1000 Wiegand Boulevard
Lawrenceville, GA 30043-5868
Tel: 888-WIKA-USA • 770-513-8200
Fax: [phone]
E-Mail: [e-mail]
www.wika.com

MM/YYYY country code based on 10/2014 EN