WIKA PSD-4 Bedienungsanleitung
Operating instructions
Betriebsanleitung
Mode d'emploi
Manual de instrucciones
EN
DE
FR
ES
Pressure switch, model PSD-4
Druckschalter, Typ PSD-4 Seite 21 - 39
Pressure switch, model PSD-4 Page 2 - 20
Pressostat, type PSD-4 Page 40 - 58
Presostato, modelo PSD-4 Página 59 - 77
2WIKA operating instructions pressure switch, model PSD-4
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© 07/2017 WIKA Alexander Wiegand SE & Co. KG
All rights reserved. / Alle Rechte vorbehalten.
WIKA®is a registered trademark in various countries.
WIKA®ist eine geschützte Marke in verschiedenen Ländern.
1. General information
1. General information
Prior to starting any work, read the operating instructions! Keep for later use!
■These operating instructions contain important information on handling the pressure switch.Working safely
requires that all safety instructions and work instructions are observed.
■The general terms and conditions of WIKA Alexander Wiegand SE & Co. KG shall apply.
■Further information:
- Internet address: www.wika.de / www.wika.com
- Contact: Tel.: +49 9372 132-0
- Data sheet: PE 81.86
- Test report: Included in delivery
- Tapped holes for process connections: Technical information IN 00.14 at www.wika.com
- Electrical mounting: Technical information IN 00.50 at www.wika.com
- Declaration of conformity: Online at www.wika.de
3WIKA operating instructions pressure switch, model PSD-4
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2. Short overview
2. Short overview
2.1 Overview
Conrmation button
INFO button
Digital display
Status display, switching outputs
MENU button
Electrical connection
Process connection, spanner ats
Process connection, thread
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2.2 Display and operating unit
4-digit LED display
■Display of pressure value
■Display of menu item
■Display of parameter
Status of switching output 1
Status of switching output 2 (optional)
Display mode
▶Short press
Display of unit
▶Long press
For display of the set parameters, see
chapter 5.3 “Overview of parameters”
Programming mode
▶Short press
Menu up
Parameter value up (step-wise)
▶Long press
Menu up
Parameter value up (fast)
Display mode
▶Short press
Display of unit
▶Long press
Jumping into the programming mode
Programming mode
▶Short press
Menu down
Parameter value down (step-wise)
▶Long press
Menu down
Parameter value down (fast)
Display mode
▶Short press
Display of unit
Programming mode
▶Short press
Selection of menu item
Conrmation of input
2. Short overview
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3. Safety
3. Safety
3.1 Explanation of symbols and terms
WARNING!
The signal word indicates a hazard with a medium degree of risk which, if not avoided, may result in
death or serious injury.
CAUTION!
The signal word indicates a hazard with a low degree of risk which, if not avoided, may result in a minor
or moderate injury.
Information
The signal word points out useful tips, recommendations and information for ecient and trouble-free
operation.
1.1 Intended use
The pressure switch may only be used in such applications as are within its technical performance limits, in particular
with regard to its material resistance limit, leakage rate limits and permissible temperature and pressure limits.
It is the sole responsibility of the manufacturer or operator of a machine or plant to ensure the suitability of the pressure
switch, and its media resistance, within the application through proper choice of materials and maintenance cycles. For
performance limits, see chapter 9 “Specications”.
Special versions for oil and grease-free applications, as well as for use with oxygen (dangerous uid in accordance
with Directive 2014/68/EU Article 13, Regulation (EC) No. 1272/2008, or GHS 1)), are available on request.
The mounting, dismounting, installation, parameterisation and maintenance of the pressure switch in industrial
environments absolutely requires suitably skilled personnel in accordance with chapter 3.2 “Personnel qualication”.
The instrument has been designed and built solely for the intended use described here, and may only be used
accordingly.
The manufacturer shall not be liable for claims of any type based on operation contrary to the intended use.
1) Globally Harmonized System of Classification, Labelling and Packaging of Chemicals
6WIKA operating instructions pressure switch, model PSD-4
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3. Safety
Improper use
Any use beyond or dierent to the intended use is considered as improper use.
The following points, in particular, count as improper use and are not permissible:
■Use of this instrument in safety or emergency shutdown devices
■Unauthorised modications to the pressure switch
■Use in hazardous areas
■Use with abrasive or unstable uids, in particular hydrogen
3.2 Personnel qualification
Skilled personnel
Skilled personnel, authorised by the operator, 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-specic
regulations, current standards and directives, must be capable of carrying out the work described and independently
recognising potential hazards.
3.3 Labelling, safety marks
Product (example)
Approvals and conformities Serial number
QR code to WIKA serial number application Article number
Coded date of manufacture Measuring range
Pin assignment and specications IO-Link version (option)
Before mounting and commissioning the instrument, ensure you read the operating instructions!
7WIKA operating instructions pressure switch, model PSD-4
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3. Safety / 4. Mounting
Do not dispose of with household waste. Ensure a proper disposal in accordance with national
regulations.
4. Mounting
4.1 Mechanical mounting
Only use the pressure switch if it is in perfect condition with respect to safety.
Prior to commissioning, the pressure switch must be subjected to a visual inspection.
■Leaking liquid is indicative of damage.
■Obvious damage must be reported immediately.
■With a high ambient temperature and a high UV irradiation, the pressure switch must be installed with additional
covering in order to avoid damage to the digital indicator and buttons.
For information on tapped holes and welding sockets, see Technical information IN 00.14 at www.wika.com
Mounting instructions for process connections G 1 hygienic and TRI-CLAMP®
■Never loosen sealed lling screws on the measuring instrument.
■For installation, in accordance with the tting and ange standards the appropriate fastenings, such as screws, nuts
or clamp rings, must be used.
■For ange mounting, only use sealings with a suciently large inner diameter and centre them. Contact with the
diaphragm leads to measuring deviations.
■When using a welding socket, position this so that the hole for leakage detection points downwards.Weld the
welding socket ush with the inner wall of the vessel and grind down. The surface roughness of the ground surfaces
must be Ra ≤ 0.8 μm. To comply with 3-A guidelines, always provide a leakage hole of min. 2.38 mm (0.09 in) at the
lowest position.
■When using soft or PTFE sealings, observe the instructions of the sealing manufacturer, particularly with regard to
tightening torque and load cycles.
G 1 hygienic
■Wetted seals from EPDM or FKM
■Suitable for WIKA adapter system model 910.61; see WIKA data sheet AC 09.20
■For dimensions of the appropriate process adapters and welding sockets, see WIKA data sheet AC 09.20
8WIKA operating instructions pressure switch, model PSD-4
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4. Mounting
TRI-CLAMP®
EHEDG conformity with clamp connection only in combination with a T-ring seal from Combit Metaalbewerking B.V.
Additional mounting instructions for process connections with EHEDG and 3-A approvals
Observe the following instructions, especially for EHEDG-certied and 3-A-compliant instruments.
■To maintain the EHEDG certication, one of the EHEDG-recommended process connections must be used. These
are marked with the logo in the data sheet.
■For an EHEDG-compliant connection, seals in accordance with the current EHEDG policy document must be used.
■To maintain the conformity to the 3-A standard, a 3-A-compliant process connection must be used.These are
marked with the logo in the data sheet.
■Mount the process connection with minimal dead space and able to be cleaned easily.
■The mounting position must not form a draining point or cause a basin to be formed.
4.2 Electrical mounting
Electrical connection to the voltage supply
→For supply voltage, see product label or connection diagram
Pin assignment
→ For pin assignments, see product label or connection diagram
Circular connector M12 x 1 (4-pin) Circular connector M12 x 1 (5-pin)
U+ 1 U+ 1
U- 3 U- 3
S+ 2 S+ 5
SP1/C 1) 4 SP1/C 4
SP2 2 SP2 2
1) Depending on the configuration of the output signals
Legend:
U+ Positive power supply terminal SP1 Switching output 1
U- Negative power supply terminal SP2 Switching output 2
S+ Analogue output C Communication with IO-Link
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For instruments without North American certication
This equipment is intended for operation with low voltages which are separated from the AC 230 V (50 Hz) mains
voltage or voltages greater than AC 50 V or DC 120 V for dry environments. A connection to an SELV circuit is
recommended, or alternatively to circuits with a dierent protective measure in accordance with IEC 60364-4-41
installation standard.
For instruments with North American certication per UL/CSA IEC 61010-1
The power supply for the pressure sensor must be made via an energy-limited electric circuit in accordance with
section 9.3 of UL/EN/IEC 61010-1 or an LPS per UL/EN/IEC 62368-1 or class 2 in accordance with UL1310/UL1585
(NEC or CEC).The voltage supply must be suitable for operation above 2,000 m should the pressure switch be used at
this altitude.
Include the pressure switch in the equipotential bonding via the process connection or connect it to ground (earth).
5. Commissioning
Only use original parts and accessories, see data sheet PE 81.86 under “Accessories”.
5.1 Adjustability of zero point
Check the indicated zero point on the digital display during commissioning. Should a zero point oset be displayed as
a result of installation, this can be reset in programming mode with the 0SET parameter.
Only carry out the setting for gauge and vacuum pressure measuring ranges in a depressurised state.
For absolute pressure measuring ranges, the setting must be carried out at 0 bar absolute (vacuum).
Since appropriate references are required for this, we recommend that this is only carried out by the
manufacturer.
5.2 Operating modes
Mode Description
System start Digital display is fully activated for 1 sec.
When the pressure switch is powered up within the range of the hysteresis, the output switch is set to
“not active” by default.
4. Mounting / 5. Commissioning
10 WIKA operating instructions pressure switch, model PSD-4
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5. Commissioning
Mode Description
Programming mode
(setting the parameters)
Activating the programming mode
Keep the “MENU” button pressed for approx. 2 sec. If the password is set to ≠ 0000, a password will be
requested. If authentication is successful, then it enters the programming mode, otherwise it reverts to
display mode.
Timeout
If, during the setting of a parameter, no button is pressed for 60 s, the instrument returns to the display
mode with the value unchanged.
Display mode
(normal operation, display
of pressure value)
Returning to the display mode
Simultaneous pressing of “INFO” and “MENU”
5.3 Overview of parameters
Menu item Description Parameter Factory setting
SP1/SP2 Hysteresis function:
Switch point (switching output 1/2)
0.25 ... 100 % of measuring range Nominal pressure
FH1/FH2 Window function:
Window high (switching output 1/2)
0.25 ... 100 % of measuring range Nominal pressure
RP1/RP2 Hysteresis function: Reset point,
switching output (1 or 2)
0 ... (switch point - 0.25 % of measuring
range)
Nominal pressure -
10 %
FL1/FL2 Window function:Window low switch
output (1 or 2)
0 ... (window high - 0.25 % of measuring
range)
Nominal pressure -
10 %
EF Extended programming functions
RES Return the set parameters to the factory
settings
Yes/No
DS1/DS2 Switching delay time, which must occur
without interruption before any electrical
signal change occurs (SP1, if applicable
SP2)
0.00 ... 65.00 s 0.00 s
DR1/DR2 Reset delay time, which must occur
without interruption before any electrical
signal change occurs (RP1, if applicable
RP2)
0.00 ... 65.00 s 0.00 s
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