WIKA PSD-4 Bedienungsanleitung

Operating instructions

Betriebsanleitung

Mode d'emploi

Manual de instrucciones

Druckschalter Typ PSA-31 für die sterile Verfahrenstechnik

Pressure switch model PSA-31

Pressure switch model PSA-31 for sanitary applications

Pressostat type PSA-31 pour applications stériles

Presostato modelo PSA-31 para procesos estériles

Replacement

model: PSD-4

2WIKA operating instructions pressure switch model PSA-31

14018458.03 11/2021 EN/DE/FR/ES

WIKA®is a registered trademark in various countries.

WIKA®ist eine geschützte Marke in verschiedenen Ländern.

Prior to starting any work, read the operating instructions!

Keep for later use!

Vor Beginn aller Arbeiten Betriebsanleitung lesen!

Zum späteren Gebrauch aufbewahren!

Lire le mode d'emploi avant de commencer toute opération !

A conserver pour une utilisation ultérieure !

¡Leer el manual de instrucciones antes de comenzar cualquier trabajo!

¡Guardar el manual para una eventual consulta posterior!

Betriebsanleitung Typ PSA-31 Seite 33 - 61

Operating instructions model PSA-31 Page 3 - 31

Mode d'emploi type PSA-31 Page 63 - 91

Manual de instrucciones modelo PSA-31 Página 93 - 121

3WIKA operating instructions pressure switch model PSA-31 for sanitary applications

14018458.03 11/2021 EN/DE/FR/ES

Contents

Declarations of conformity can be found online at www.wika.com.

Contents

1. General information 4

2. Safety 6

3. Specifications 9

4. Design and function 15

5. Transport, packaging and storage 15

6. Commissioning, operation 16

7. Maintenance and cleaning 28

8. Faults 29

9. Dismounting, return and disposal 30

4WIKA operating instructions pressure switch model PSA-31 for sanitary applications

14018458.03 11/2021 EN/DE/FR/ES

1. General information

■

The pressure switch described in the operating instructions has been designed and manufactured

using state-of-the-art technology. All components are subject to stringent quality and environmental

criteria during production. Our management systems are certied to ISO 9001 and ISO 14001.

■

These operating instructions contain important information on handling the instrument.Working

safely requires that all safety instructions and work instructions are observed.

■

Observe the relevant local accident prevention regulations and general safety regulations for the

instrument's range of use.

■

The operating instructions are part of the product and must be kept in the immediate vicinity of the

instrument and readily accessible to skilled personnel at any time.

■

Skilled personnel must have carefully read and understood the operating instructions, prior to

beginning any work.

■

The manufacturer's liability is void in the case of any damage caused by using the product contrary

to its intended use, non-compliance with these operating instructions, assignment of insuciently

qualied skilled personnel or unauthorised modications to the instrument.

■

The general terms and conditions contained in the sales documentation shall apply.

■

Subject to technical modications.

■

Further information:

- Internet address: www.wika.de / www.wika.com

- Relevant data sheet: PE 81.85

- Application consultant: Tel.: (+49) 9372/132-8976

Fax: (+49) 9372/132-8008976

E-mail: info@wika.de

1. General information

5WIKA operating instructions pressure switch model PSA-31 for sanitary applications

14018458.03 11/2021 EN/DE/FR/ES

Explanation of symbols

WARNING!

... indicates a potentially dangerous situation which can result in serious injury or death if not

avoided.

CAUTION!

... indicates a potentially dangerous situation which can result in light injuries or damage to

the equipment or the environment if not avoided.

Information

… points out useful tips, recommendations and information for ecient and trouble-free

operation.

Abbreviations

U+Positive power terminal

U-Negative power terminal

S+Analogue output

SP1 Switch point 1

SP2 Switch point 2

C Communication with IO-Link

MBA Start of measuring range

MBE End of measuring range

1. General information

6WIKA operating instructions pressure switch model PSA-31 for sanitary applications

14018458.03 11/2021 EN/DE/FR/ES

2. Safety

WARNING!

Before installation, commissioning and operation, ensure that the appropriate pressure

switch has been selected in terms of measuring range, design and specic measuring

conditions.

Non-observance can result in serious injury and/or damage to the equipment.

WARNING!

■

Open the connections only after the system has been depressurised.

■

Observe the working conditions in accordance with Chapter 3 "Specications".

■

Always operate the pressure switch within the overpressure safety range!

Further important safety instructions can be found in the individual chapters of these

operating instructions.

2.1 Intended use

The pressure switch is used to convert pressure into an electrical signal indoors and outdoors.

The instrument has been designed and built solely for the intended use described here, and may only

be used accordingly.

The technical specications contained in these operating instructions must be observed. Improper

handling or operation of the instrument outside of its technical specications requires the instrument to

be taken out of service immediately and inspected by an authorised WIKA service engineer.

The manufacturer shall not be liable for claims of any type based on operation contrary to the intended

use.

2. Safety

7WIKA operating instructions pressure switch model PSA-31 for sanitary applications

14018458.03 11/2021 EN/DE/FR/ES

2.2 Personnel qualication

WARNING!

Risk of injury if qualication is insucient!

Improper handling can result in considerable injury and damage to equipment.

The activities described in these operating instructions may only be carried out by skilled

personnel who have the qualications described below.

Skilled personnel

Skilled personnel are understood to be personnel who, based on their technical training, knowledge

of measurement and control technology and on their experience and knowledge of country-specic

regulations, current standards and directives, are capable of carrying out the work described and

independently recognising potential hazards.

Special operating conditions require further appropriate knowledge, e.g. of aggressive media.

2.3 Special hazards

WARNING!

For hazardous media such as oxygen, acetylene, ammable or toxic gases or liquids,

and refrigeration plants, compressors, etc., in addition to all standard regulations, the

appropriate existing codes or regulations must also be followed.

WARNING!

Residual media in dismounted pressure switches can result in a risk to persons, the

environment and equipment.

Take sucient precautionary measures.

2. Safety

8WIKA operating instructions pressure switch model PSA-31 for sanitary applications

14018458.03 11/2021 EN/DE/FR/ES

2.4 Labelling / safety marks

Product label

If the serial number becomes illegible (e.g. due to mechanical damage or overpainting), traceability will

no longer be possible.

Explanation of symbols

3-A Sanitary Standards, Inc.

This instrument is 3-A marked based on a third party verication for conformance to the 3-A

standard 74-07.

Measuring range

Power supply

P# Product No.

S# Serial No. Analogue signal Switching output 1 Switching output 2

2. Safety

9WIKA operating instructions pressure switch model PSA-31 for sanitary applications

14018458.03 11/2021 EN/DE/FR/ES

3. Specications

3.1 Measuring ranges

Absolute pressure

bar 0 ... 1 0 ... 1.6 0 ... 2.5 0 ... 4 0 ... 6 0 ... 10 0 ... 16 0 ... 25

psi 0 ... 15 0 ... 25 0 ... 301) 0 ... 50 0 ... 100 0 ... 160 0 ... 200 0 ... 300

Vacuum and +/- measuring range

bar -1 ... 0 -1 ... +1.5 -1 ... +3 -1 ... +5 -1 ... +9 -1 ... +15 -1 ... +24

psi -14.5 ... 0 -14.5 ... +30 -14.5 ... +50 -14.5 ... +100 -14.5 ... +160 -14.5 ... +200 -14.5 ... +300

The given measuring ranges are also available in kg/cm2and MPa.

Overpressure limit

2 times

3.2 Display

14-segment LED, red, 4-digit, 9 mm character size

Display can be turned electronically through 180°

Update

100, 200, 500, 1,000 ms (adjustable)

10 WIKA operating instructions pressure switch model PSA-31 for sanitary applications

14018458.03 11/2021 EN/DE/FR/ES

3. Specications

3.3 Output signal

Switching output 1 Switching output 2 Analogue signal

PNP - 4 ... 20 mA

PNP - DC 0 ... 10 V

PNP PNP 4 ... 20 mA

PNP PNP DC 0 ... 10 V

Alternatively also available with an NPN instead of a PNP switching output.

With the IO-Link option, switching output 1 is always PNP.

Zero oset adjustment

maximum 3 % of span

Analogue signal

Current output load: ≤ 0.5 kΩ

Voltage output load: > 10 kΩ

Settling time: 3 ms

Switching output

Switch point 1 and switch point 2 are individually adjustable.

Normally-open and normally-closed function: freely adjustable

Window and hysteresis function: freely adjustable

Switching voltage: Power supply - 1 V

Switching current: maximum 250 mA

maximum 100 mA with IO-Link option

Settling time: ≤ 10 ms

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