PP7551

PP7551

Pressure switch with ceramic measuring cell PP7551

Product characteristics

Output signal

switching signal; IO-Link; (configurable)

Measuring range

0…250 bar

0…3625 psi

0…25 MPa

Process connection

threaded connection G 1/4 external thread internal thread:M5

Application

for industrial applications

Media

liquids and gases

Conditionally suitable for

use in gases at pressures > 25 bar only on request

Medium temperature [°C]

-25…90

Min. bursting pressure

850 bar

12300 psi

85 MPa

Pressure rating

400 bar

5800 psi

40 Mpa

Type of pressure

relative pressure

Electrical data

Operating voltage [V]

9.6…36 DC; (communication mode: 18…32)

Current consumption [mA]

< 45

Min. insulation resistance [MΩ]

100; (500 V DC)

Protection class

III

Reverse polarity protection

yes

Power-on delay time [s]

0.3

Inputs / outputs

Number of inputs and outputs

Number of digital outputs: 2

Outputs

Total number of outputs

Output signal

switching signal; IO-Link; (configurable)

Electrical design

PNP

Number of digital outputs

Output function

normally open / normally closed; (parameterisable)

Max. voltage drop switching output DC [V]

Permanent current rating of switching output DC [mA]

250

Switching frequency DC [Hz]

170

Short-circuit protection

yes

Type of short-circuit protection

pulsed

Overload protection

yes

Measuring/setting range

Measuring range

0…250 bar

0…3625 psi

0…25 MPa

Set point SP

2…250 bar

40…3620 psi

0.2…25 MPa

Reset point rP

1…249 bar

20…3600 psi

0.1…24.9 MPa

In steps of

1 bar

20 psi

0.1 MPa

Factory setting

	SP1 = 63 bar	rP1 = 58 bar
	SP2 = 188 bar	rP2 = 183 bar
	OUT1 = Hno	OUT2 = Hno

Accuracy / deviations

Switch point accuracy [% of the span]

< ± 0,5

Repeatability [% of the span]

< ± 0,1; (with temperature fluctuations < 10 K)

Characteristics deviation [% of the span]

< ± 0,25 (BFSL) / < ± 0,5 (LS); (BFSL = Best Fit Straight Line; LS = limit value setting)

Hysteresis deviation [% of the span]

< ± 0,1

Long-term stability [% of the span]

< ± 0,1; (per year)

Temperature coefficient zero point [% of the span / 10 K]

0,2; (0…80 °C)

Temperature coefficient span [% of the span / 10 K]

0,2; (0…80 °C)

Response times

Response time [ms]

< 3

Damping for the switching output dAP in steps [s]

0,003 – 0,006 – 0,010 – 0,017 – 0,060 – 0,125 – 0,250 – 0,500

Interfaces

Communication interface

IO-Link

Transmission type

COM2 (38,4 kBaud)

IO-Link revision

1.0

Profiles

no profile

SIO mode

yes

Required master port type

Process data analogue

Process data binary

Min. process cycle time [ms]

2.3

Supported DeviceIDs

Type of operation	DeviceID
Default	3

Operating conditions

Ambient temperature [°C]

-25…85

Storage temperature [°C]

-40…100

Protection

IP 68; (7 days / 1 m water depth / 0.1 bar)

Tests / approvals

EMC

immunity	EN 61000-6-2
EN 61000-4-2 ESD	4 kV contact discharge / 15 kV air discharge
EN 61000-4-3 HF radiated	20 V/m
EN 61000-4-4 Burst	4 kV coupling clamp
EN 61000-4-5 Surge	0,5 kV supply / 1 kV signal for DC units
EN 61000-4-6 HF conducted	10 V
immunity	according to the automotive directive 1995/54/EC / 04/104EG / 05/83/EG
absorber chamber test to ISO 11452-2:	80 V/m
EN 50155	Klasse T3, C1, S1

Shock resistance

DIN IEC 60068-2-27 / DIN IEC 60068-2-29	1000 g
DIN EN 61373	category 3

Vibration resistance

DIN IEC 68-2-6	20 g (10…2000 Hz)
DIN EN 60068-2-64	14 g
DIN EN 61373	category 2

MTTF [years]

310

UL approval

UL Approval no.

J010

Pressure Equipment Directive

Sound engineering practice; can be used for group 2 fluids; group 1 fluids on request

Mechanical data

Weight [g]

227.5

Materials

stainless steel (1.4301 / 304); FKM; EPDM/X; PA

Materials (wetted parts)

stainless steel (1.4305 / 303); ceramics; FKM

Min. pressure cycles

100 million

Process connection

threaded connection G 1/4 external thread internal thread:M5

Restrictor element integrated

no (can be retrofitted)

Displays / operating elements

Display

operation	2 x LED, green
switching status	2 x LED, yellow

Teach function

yes

Remarks

Pack quantity

1 pcs.

Electrical connection

Connection

Connector: 1 x M12

Pressure switch with ceramic measuring cell PP7551

Application

Electrical data

Operating conditions

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