WIKA PSA-31 User Manual [en, de, es, fr]
Operating instructions
Betriebsanleitung
Mode d'emploi
Manual de instrucciones
Pressure switch model PSA-31
Druckschalter Typ PSA-31
Pressostat type PSA-31
Presostato modelo PSA-31
Pressure switch model PSA-31
GB
D
F
E
GB
Operating instructions model PSA-31 Page 3 - 32
D
Betriebsanleitung Typ PSA-31 Seite 33 - 62
F
Mode d'emploi type PSA-31 Page 63 - 92
E
Manual de instrucciones modelo PSA-31 Página 93 - 122
© 2010 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.
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!
2 WIKA operating instructions pressure switch model PSA-31
14018458.01 11/2011 GB/D/F/E
Contents
Contents
1. General information 4
2. Safety 6
3. Specications 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
Appendix 1: EC Declaration of Conformity for model PSA-31 32
GB
Declarations of conformity can be found online at www.wika.com.
14018458.01 11/2011 GB/D/F/E
3WIKA operating instructions pressure switch model PSA-31
1. General information
1. General information
■
The pressure switch described in the operating instructions has been designed and manufactured
GB
using state-of-the-art technology. All components are subject to stringent quality and environmental
criteria during production. Our management systems are certied 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 insuciently
qualied skilled personnel or unauthorised modications to the instrument.
■
The general terms and conditions contained in the sales documentation shall apply.
■
Subject to technical modications.
■
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: support-tronic@wika.de
4 WIKA operating instructions pressure switch model PSA-31
14018458.01 11/2011 GB/D/F/E
1. General information
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 ecient and trouble-free
operation.
Abbreviations
U
+
U
-
S
+
SP1 Switch point 1
SP2 Switch point 2
C Communication with IO-Link
MBA Start of measuring range
MBE End of measuring range
Positive power terminal
Negative power terminal
Analogue output
GB
14018458.01 11/2011 GB/D/F/E
5WIKA operating instructions pressure switch model PSA-31
2. Safety
2. Safety
WARNING!
GB
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 specications contained in these operating instructions must be observed. Improper
handling or operation of the instrument outside of its technical specications 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.
Before installation, commissioning and operation, ensure that the appropriate pressure
switch has been selected in terms of measuring range, design and specic 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 "Specications".
■
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.
6 WIKA operating instructions pressure switch model PSA-31
14018458.01 11/2011 GB/D/F/E
2. Safety
2.2 Personnel qualication
WARNING!
Risk of injury if qualication is insucient!
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 qualications 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-specic
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 sucient precautionary measures.
GB
14018458.01 11/2011 GB/D/F/E
7WIKA operating instructions pressure switch model PSA-31
2. Safety
2.4 Labelling / safety marks
Product label
GB
Measuring range
P# Product No.
S# Serial No.
If the serial number becomes illegible (e.g. due to mechanical damage or overpainting), traceability will
no longer be possible.
Explanation of symbols
General danger symbol
CE, Communauté Européenne
Instruments bearing this mark comply with the relevant European directives.
Analogue signal Switching output 1
Power supply
Switching output 2
3-A Sanitary Standards, Inc.
This instrument is 3-A marked based on a third party verication for conformance to the 3-A
standard 74-03.
8 WIKA operating instructions pressure switch model PSA-31
14018458.01 11/2011 GB/D/F/E
3. Specications
3. Specications
3.1 Measuring ranges
Relative 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 ... 30
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 ... 30
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/cm
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)
1)
0 ... 50 0 ... 100 0 ... 160 0 ... 200 0 ... 300
1)
0 ... 50 0 ... 100 0 ... 160 0 ... 200 0 ... 300
2
and MPa.
GB
14018458.01 11/2011 GB/D/F/E
9WIKA operating instructions pressure switch model PSA-31
3. Specications
3.3 Output signal
Switching output 1 Switching output 2 Analogue signal
PNP - 4 ... 20 mA
GB
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 oset 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
10 WIKA operating instructions pressure switch model PSA-31
14018458.01 11/2011 GB/D/F/E
3. Specications
3.4 Voltage supply
Power supply
DC 15 ... 35 V
Current consumption
maximum 100 mA
Total current consumption
maximum 600 mA including switching current
maximum 500 mA including switching current (with IO-Link option)
3.5 Accuracy
Analogue signal
≤ ± 1.0 % of span
Including non-linearity, hysteresis, zero-point and full scale deviations (corresponds to measured error per IEC 61298-2). Calibrated in
vertical mounting position with process connection facing downwards.
Non-linearity
≤ ± 0.5 % of span BFSL (per IEC 61298-2)
Adjustment accuracy of the switch points
≤ ± 0.5 % of span
Display
≤ ± 1.0 % of span ± 1 digit
GB
Long-term drift
≤ ± 0.2 % of span (per IEC 61298-2)
14018458.01 11/2011 GB/D/F/E
11WIKA operating instructions pressure switch model PSA-31
3. Specications
Temperature coecients depending on the process connection
Clamp DIN 32676, DN 32
Typical temperature coecient of zero point
GB
■
0 ... 20 °C
■
20 ... 80 °C
Typical temperature coecient of span
■
0 ... 80 °C 0.1 % of span / 10 K
All other process connections
Typical temperature coecient of zero point
■
0 ... 20 °C
■
20 ... 80 °C
Typical temperature coecient of span
■
0 ... 80 °C 0.1 % of span / 10 K
3.6 Reference conditions
Temperature: 15 ... 25 °C
Atmospheric pressure: 950 ... 1,050 mbar
Humidity: 45 ... 75 % relative
Nominal position: Process connection lower mount
Power supply: DC 24 V
Load: see "Output signal"
3.7 Operating conditions
Temperatures and humidity
Ambient temperature: -20 ... +80 °C
Storage temperature: -20 ... +80 °C
Rated temperature range: 0 ... 80 °C
Permissible humidity: 45 ... 75 % relative
12 WIKA operating instructions pressure switch model PSA-31
0.75 % of span / 10 K
0.45 % of span / 10 K
0.7 % of span / 10 K
0.2 % of span / 10 K
14018458.01 11/2011 GB/D/F/E
3. Specications
Ingress protection
IP 65 and IP 67
The stated ingress protection (per IEC 60529) only applies when plugged in using mating connectors that have the appropriate ingress
protection.
Medium temperature depending on the process connection
■
G1 hygienic
-20 ... +125 °C (+150 °C possible for up to 60 minutes)
■
All other process connections
-20 ... +100 °C (+135 °C possible for up to 60 minutes)
Vibration resistance
10 g (IEC 60068-2-27, vibration under resonance)
Shock resistance
50 g (per IEC 60068-2-6, mechanical shock)
3.8 Electrical connections
Connections
■
Circular connector M12 x 1, 4-pin
■
Circular connector M12 x 1, 5-pin
1) Only for version with two switching outputs and analogue signal
Electrical safety
Overvoltage protection:
Short-circuit resistance: S
Reverse polarity protection: U
Insulation voltage:
1)
DC 40 V
/ SP1 / SP2 vs. U
+
vs. U
+
-
DC 500 V
-
GB
14018458.01 11/2011 GB/D/F/E
13WIKA operating instructions pressure switch model PSA-31
3. Specications
3.9 Materials
Wetted parts
Process connection: Stainless steel 1.4435 / 316L
GB
Non-wetted parts
Case: Stainless steel 304
Keyboard: TPE-E
Display window: PC
Display head: PC+ABS-Blend
Pressure transmission medium
KN59 Neobee
3.10 Approvals, directives and certicates
Certicates
3-A (74-03)
This instrument is 3-A marked based on a third party
verication for conformance to the 3-A standard 74-03.
CE conformity
EMC directive 2004/108/EC, EN 61326 emission (group 1, class B) and interference immunity
(industrial application).
RoHS conformity
Yes
For further specications see WIKA data sheet PE 81.85 and the order documentation.
14 WIKA operating instructions pressure switch model PSA-31
®
M-20, FDA conform
14018458.01 11/2011 GB/D/F/E
4. Design and function / 5. Transport, packaging and storage
4. Design and function
4.1 Description
By means of a sensor element and by supplying power, the prevailing pressure is converted into a
switching signal or an amplied standardised electrical signal via the deformation of a diaphragm. This
electrical signal varies in proportion to the pressure and can be evaluated accordingly.
4.2 Scope of delivery
Cross-check the scope of delivery with the delivery note.
The version with G1 hygienic process connection includes pre-assembled sealings and a protection cap.
5. Transport, packaging and storage
For the protection of the diaphragm, the pressure switch is delivered with a special protection
cap.
■
In order to avoid damage at the diaphragm and/or the process connection thread,
remove the protection cap by hand only just before installation.
■
Keep the protection cap for subsequent storage or transport.
■
Fit the protection cap before dismounting and transporting the instrument.
5.1 Transport
Check the instrument for any damage that may have been caused by transport. Additionally check the
diaphragm for any optical damage.
Obvious damage must be reported immediately.
GB
5.2 Packaging
Do not remove packaging until just before mounting.
Keep the packaging as it will provide optimum protection during transport (e.g. change in installation site,
sending for repair).
14018458.01 11/2011 GB/D/F/E
15WIKA operating instructions pressure switch model PSA-31
5. Transport, packaging and storage / 6. Commissioning, ...
5.3 Storage
Permissible conditions at the place of storage:
■
GB
Storage temperature: -20 ... +80 °C
■
Humidity: 45 ... 75 % relative humidity (no condensation)
In order to protect the diaphragm, mount the protection cap before storing the instrument.
WARNING!
Before storing the instrument (following operation), remove any residual media. This is of
particular importance if the medium is hazardous to health, e.g. caustic, toxic, carcinogenic,
radioactive, etc.
6. Commissioning, operation
CAUTION!
Only use the pressure switch if it is in perfect condition with respect to safety.
Check the following points before commissioning:
■
Check the diaphragm for any visible damage, since this is a safety-relevant component.
■
Leaking uid is indicative of damage.
6.1 Making the mechanical connection
■
Remove the protection cap not until shortly before mounting. During installation, ensure that the
diaphragm is not damaged.
■
The sealing faces at the instrument always have to be clean.
■
Only ever screw in, or unscrew, the instrument via the spanner ats. Never use the case as a working
surface.
■
The correct torque depends on the dimensions of the pressure connection and the gasket used
(form/material).
■
When screwing in, do not cross the threads.
■
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.
16 WIKA operating instructions pressure switch model PSA-31
14018458.01 11/2011 GB/D/F/E
6. Commissioning, operation
■
For ange mounting, only use sealings with a suciently large inner diameter and centre them;
contact with the diaphragm leads to measuring errors.
■
When using soft or PTFE sealings, observe the instructions of the sealing manufacturer, particularly
with regard to tightening torque and load cycles.
■
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 should be better than Ra ≤ 0.8 µm.
6.2 Making the electrical connection
■
The instrument must be earthed via the process connection!
■
For cable outlets, make sure that no moisture enters at the cable end.
Connection diagrams
Circular connector M12 x 1, 4-pin
Circular connector M12 x 1, 5-pin
GB
Assignment
U
1 3 2 4 2
U
+
S
-
+
SP1 SP2
Assignment
+
U- S
U
1 3 5 4 2
+
SP1 SP2
If a shut-o valve is available, open it slowly after installation in order to avoid pressure
surges.
6.3 Zero point adjustment
Check the indicated zero point on the display during commissioning.
Should an oset be displayed as a result of installation, this can be reset in programming mode with the
0SET parameter (see chapter 6.7 "Menu").
14018458.01 11/2011 GB/D/F/E
17WIKA operating instructions pressure switch model PSA-31
6. Commissioning, operation
■
Carry out zero point adjustment for relative and vacuum pressure measuring ranges in a
depressurised state.
■
Carry out zero point adjustment of absolute pressure ranges from 0 bar absolute
GB
6.4 Operating modes
■
System start
Display is fully activated for 2 seconds.
When the pressure switch is powered up within the range of the hysteresis, the output switch is set to
"not active" by default.
■
Display mode
Normal operation, display pressure value
■
Programming mode
Setting the parameters
6.5 Keys and functions
The pressure switch has two operating modes, the display mode and the programming mode. The
selected operating mode determines the respective function of the key.
(vacuum). Since appropriate references are required for this, we recommend that this is
only carried out by the manufacturer.
Jumping into the programming mode
Keep the "MENU" key pressed for approx. 5 seconds. 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.
Returning to the display mode
Simultaneous pressing of both keys.
18 WIKA operating instructions pressure switch model PSA-31
14018458.01 11/2011 GB/D/F/E
6. Commissioning, operation
Status switching output 2 (optional)
Status switching output 1
Display mode
▶ Short press
Display of the unit
▶ Long press
Display of the set parameters see chapter
6.4 "Parameters"
Programming mode
▶ Short press
Menu up
Parameter value up (step-wise)
▶ Long press
Menu up
Parameter value up (fast)
4-digit LED display
■
Display pressure value
■
Display menu item
■
Display parameter
Display mode
▶ Short press
Display of the unit
▶ Long press
Jumping into the programming mode
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 the unit
Programming mode
▶ Short press
Select menu item
Conrmation of the input
GB
14018458.01 11/2011 GB/D/F/E
19WIKA operating instructions pressure switch model PSA-31
6. Commissioning, operation
6.6 Parameters
Parameter Description
SP1/SP2 Hysteresis function: Switch point switching output (1 or 2)
GB
FH1/FH2 Window function: Window high switching output (1 or 2)
RP1/RP2 Hysteresis function: Reset point switching output (1 or 2)
FL1/FL2 Window function: Window low switch output (1 or 2)
EF Extended programming functions
RES Return the set parameter to the factory settings
DS1/DS2 Switch delay time, which must occur without interruption before any electrical signal change occurs (SP1 or SP2)
DR1/DR2 Switch delay time, which must occur without interruption before any electrical signal change occurs (RP1 or RP2)
OU1 Switching function switching output (1 or 2)
OU2 HNO = hysteresis function, normally open
UNIT Changing units
0SET Oset adjustment (3 % of span)
DISM Display value in display mode
DISU Display update 1, 2, 5, 10 updates/second
DISR Rotate display indicator by 180°
RHL Clear the Min- and Max-value memories
PAS Password input, 0000 = no password
TAG Input of a 16-gure alphanumeric measuring point number
HNC = hysteresis function, normally closed
FNO = window function, normally open
FNC = window function, normally closed
(If the measuring range is outside the indication range, a unit switching is not possible and the UNIT parameter is not
indicated)
ACT = actual pressure value; LOW, HIGH = minimum, maximum temperature value OFF = display o;
SP1/FH1 = function switch point 1, RP1/FL1 = function reset point 1,
SP2/FH2 = function switch point 2, RP2/FL2 = function reset point 2
Password input digit by digit
20 WIKA operating instructions pressure switch model PSA-31
14018458.01 11/2011 GB/D/F/E
6. Commissioning, operation
6.7 Menu (programming and factory setting)
Display mode
Long press on menu key
Programming mode
SP1 / FH1 Value (Min: MBA +0.5 % Max: MBE) Instrument nominal pressure
RP1 / FL1 Value (Min: MBA Max: SP1 -0.5 %) Instrument nominal pressure -10 %
SP2 / FH2 Value (Min: MBA +0.5 % Max: MBE) Instrument nominal pressure
RP2 / FL2 Value (Min: MBA Max: SP2 -0.5 %) Instrument nominal pressure -10 %
EF RES Yes / No Reset to factory setting
END END
Display mode
14018458.01 11/2011 GB/D/F/E
DS1 Value 0 ... 50 s 0 s
DR1 Value 0 ... 50 s 0 s
DS2 Value 0 ... 50 s 0 s
DR2 Value 0 ... 50 s 0 s
OU1 PARA HNO, HNC, FNO, FNC HNO
OU2 PARA HNO, HNC, FNO, FNC HNO
UNIT Unit BAR, MPA, KPA, PSI, KG/cm2 Order-related
0SET Yes / No
DISU Value 1/2/5/10 update/second 0 s
DISR Yes / No Rotate display by 180°
RHL Yes / No Reset HIGH, LOW
PAS Value Password without
TAG Value Measuring point number without
Legend:
MBA = Start of measuring range
MBE = End of measuring range
Zero Point adjustment 3% of span
ACT, HIGH, LOW, OFF, SP1/FH1,
PARA
RP1/FL1, SP2/FH2, RP2/FL2
Factory setting:
0 s
ACTDISM
GB
21WIKA operating instructions pressure switch model PSA-31
6. Commissioning, operation
6.8 Switching functions
Hysteresis function
If the system pressure uctuates around the set point, the hysteresis
GB
keeps the switching status of the outputs stable. With increasing system
pressure, the output switches when reaching the switch point (SP).
■
Contact normally open (HNO): active
■
Contact normally closed (HNC): inactive
With system pressure falling again, the output will not switch back
before the reset point (RP) is reached.
■
Contact normally open (HNO): inactive
■
Contact normally closed (HNC): active
Window function
The window function allows for the control of a dened range.
When the system pressure is between window High (FH) and window
Low (FL), the output switches on.
■
Contact normally open (FNO): active
■
Contact normally closed (FNC): inactive
When the system pressure is outside window High (FH) and window
Low (FL), the output does not switch on.
Fig.: Hysteresis function
■
Contact normally open (FNO): inactive
■
Contact normally closed (FNC): active
Fig.: Window function
22 WIKA operating instructions pressure switch model PSA-31
14018458.01 11/2011 GB/D/F/E
6. Commissioning, operation
Delay times (0 ... 50 s)
This makes it possible to lter out unwanted pressure peaks of a short
duration or a high frequency (damping).
The pressure must be present for at least a certain pre-set time for the
output to switch on. The output does not immediately change its status
when it reaches the switching event (SP), but rather only after the
pre-set delay time (DS).
If the switching event is no longer present after the delay time, the
switch output does not change.
The output only switches back when the system pressure has fallen
down to the reset point (PR) and stays at or below the reset point (RP)
for at least the pre-set delay time (DR).
GB
Fig.: Delay times
14018458.01 11/2011 GB/D/F/E
23WIKA operating instructions pressure switch model PSA-31
6. Commissioning, operation
6.9 Description of the IO-Link functionality (optional)
IO-Link is a point-to-point connection for the communication of the PSA-31 with an IO-Link master.
Physical layer
GB
The PSA-31 supports the following features:
IO-Link specication: Version 1.0
SIO mode: Yes
Minimum cycle time: 2.3 ms
Rate: COM2 (38.4 kBaud)
Process data length: 16 bit (Frametype 2.2)
Process data
The PSA-31 has 1 or 2 digital outputs. Both switching outputs are transmitted as process data over the
IO-Link.
In the 'SIO Mode' (standard I/O mode), i.e. no IO-Link operation, the switching output 1 will switch on
pin 4 of the M12 connector.
In the IO-Link communication mode, this pin is reserved exclusively for communication. Switching
output 2 is always switched in addition on pin 2 of the M12 connector.
With a Frametype 2.2, the 16-bit process data from the pressure switch are transmitted cyclically. Bit 0
is the state of switching output 1 and bit 1 is the state of switching output 2. Where 1 and DC 24 V
correspond to the "closed" logic state of the respective output.
The remaining 14 bits contain the analogue value measured by the pressure switch. The start of the
measuring range (MBA) corresponds to a value of 1,000 d and the end of the measuring range (MBE)
corresponds to a value of 9,000 d.
Bit Process value Value range
0 OU1 0 = o, 1 = on
1 OU2 0 = o, 1 = on
2 … 15 Measured value (integer) 1,000 d = MBA
24 WIKA operating instructions pressure switch model PSA-31
9,000 d = MBE
14018458.01 11/2011 GB/D/F/E
6. Commissioning, operation
Service data (SPDU service protocol data unit)
Service data is always acyclic and exchanged on the request of the IO-Link Master
With the help of the service data, the following parameter values or instrument status can be read:
IO-Link specic:
Index
(decimal)
16 Vendor name Visible string R WIKA Alexander Wiegand
17 Vendor text Visible string R www.wika.com
19 Product ID Visible string R e.g. 1,013,093 This SPDU determines the relation-
21 Serial number Visible string R S# Corresponds to serial number on the
24 TAG max. 16 Byte
33 Last event Visible string R 40 Process data In 16 Bit unsigned R - Display of the process data that are
243 Order no Visible string R P# Corresponds to product number on
Manufacturer-specic:
Index
(decimal)
65 SP1 or FH1 16 Bit
66 RP1 or FL1 16 Bit
Object name Format Access Factory setting Remarks
SE & Co. KG
ship with the corresponding IODD.
product label (S#).
number
cyclically transferred.
the product label (P#)
setting
Object
name
Visible string
R/W - Customer-specic measuring point
Format Access Value range Factory
unsigned
unsigned
R/W 1,040 … 9,000 9,000 Switch point/window High
R/W 1,000 … 8,960 8,200 Reset point/window Low
Remarks
switching output 1
switching output 1
GB
14018458.01 11/2011 GB/D/F/E
25WIKA operating instructions pressure switch model PSA-31
6. Commissioning, operation
Index
(decimal)
67 OU1 8 Bit
Object
name
GB
68 SP2 or FH2 16 Bit
69 RP2 or FL2 16 Bit
70 OU2 8 Bit
72 Unit 8 Bit
73 HIGH 16 Bit
74 LOW 16 Bit
75 DS1 16 Bit
76 DR1 16 Bit
77 DS2 16 Bit
78 DR2 16 Bit
Format Access Value range Factory
setting
Enumeration
unsigned
unsigned
Enumeration
Enumeration
unsigned
unsigned
unsigned
unsigned
unsigned
unsigned
R/W 0 = HNO = hysteresis function,
R/W 1,040 … 9,000 9,000 Switch point/window
R/W 1,000 … 8,960 8,200 Reset point/window Low
R/W 0 = HNO = hysteresis function,
R/W 0 = bar
R 0 … 10,000 - Max. value memory
R 0 … 10,000 - Min. value memory
R/W 0 … 50,000 (0 ... 50 s) 0 Switch delay time switch
R/W 0 … 50,000 (0 ... 50 s) 0 Switch delay time reset
R/W 0 … 50,000 (0 ... 50 s) 0 Switch delay time switch
R/W 0 … 50,000 (0 ... 50 s) 0 Switch delay time reset
normally open
1 = HNC = hysteresis function,
normally closed
2 = FNO = window function,
normally open
3 = FNC = window function,
normally closed
normally open
1 = HNC = hysteresis function,
normally closed
2 = FNO = window function,
normally open
3 = FNC = window function,
normally closed
1 = Mpa
2 = kPa
3 = psi
4 = kg/cm²
0 Switching function
0 Switching function
Order-related Unit change. MBA and
Remarks
switching output 1
High switching output 2
switching output 2
switching output 2
MBE must be read again
after writing.
point 1
point 1
point 2
point 2
26 WIKA operating instructions pressure switch model PSA-31
14018458.01 11/2011 GB/D/F/E
6. Commissioning, operation
Index
(decimal)
240 MBA 32 Bit IEEE
241 MBE 32 Bit IEEE
250 DISR 8 Bit
251 DISM 8 Bit
252 PAS 16 Bit
253 LOCK 8 Bit
Index
Object
Format Access Value range Factory set-
name
754 Float
754 Float
Enumeration
Enumeration
unsigned
Enumeration
R - 1,000 The pressure value is
R - 9,000 The pressure value is
R/W 0 = Standard
R/W 0 = Act
R/W 0 … 9,999 - Enter password in order
R/W 0 = Unlocked
Object name Value Remarks
1 = 180° rotated
1 = HIGH
2 = LOW
3 = SP1/FH1
4 = RP1/FL1
5 = SP2/FH2
6 = RP2/FL2
7 = O
1 = Locked
(decimal)
2 RES 130 Return the set parameter to the factory settings
2 LOCK 163 General keylock On
2 UNLOCK 164 General keylock O
2 RHL 176 Clear the Min- and Max-value memories
2 0SET 177 Zero-point adjustment (3 % of span) see page 17
14018458.01 11/2011 GB/D/F/E
Remarks
ting
always linearised such
that the MBA equals the
value 1,000 and the MBE
equals the value 9,000.
always linearised such
that the MBA equals the
value 1,000 and the MBE
0 Turn display indicator
0 Display value in display
0 General keylock
equals the value 9,000.
by 180°
mode
to set the parameters at
the instrument. Password
0 = no password
27WIKA operating instructions pressure switch model PSA-31
GB
7. Maintenance and cleaning
7. Maintenance and cleaning
7.1 Maintenance
This instrument is maintenance-free.
GB
Repairs must only be carried out by the manufacturer.
7.2 Cleaning
CAUTION!
■
Before cleaning, correctly disconnect the instrument from the pressure supply, switch it
o and disconnect it from the voltage supply.
■
Clean the instrument with a moist cloth.
■
Electrical connections must not come into contact with moisture.
■
Wash or clean the dismounted instrument before returning it in order to protect personnel
and the environment from exposure to residual media.
■
Residual media in dismounted instruments can result in a risk to persons, the
environment and equipment.
■
Take sucient precautionary measures.
■
Do not use any pointed or hard objects for cleaning, as they may damage the diaphragm
of the process connection.
■
Only ever remove deposits from the diaphragm with a soft brush and suitable solvent.
■
Do not use any cleaner that scours the material.
For information on returning the instrument see chapter 9.2 "Return".
28 WIKA operating instructions pressure switch model PSA-31
14018458.01 11/2011 GB/D/F/E
8. Faults
8. Faults
In the event of any faults, rst check whether the pressure switch is mounted correctly, mechanically and
electrically.
Error display
Via the instrument's display internal errors are output.
The following table shows the error codes and their meaning.
Error Description
ATT1 On changing the switch point, the system automatically reduces the reset point.
ATT2 Zero-point adjustment error, current pressure is outside the limits
ATT3 Password entered for menu access is incorrect
ERR Internal error
OL Overpressure, measuring range exceeded > approx. 5% (display blinks)
UL Underpressure, below measuring range < approx. 5 % (display blinks)
Acknowledgement of an error display by pressing the "Enter" key.
Problem Possible cause Measure
No output signal Cable break Check the continuity
No output signal No/wrong power supply Rectify the power supply
No/wrong output signal Wiring error Observe the pin assignment
Constant output signal upon change in
pressure
Deviating zero point signal Overpressure limit exceeded Observe the permissible overpressure limit
Signal span too small Mechanical overload caused by overpressure Replace instrument; if it fails repeatedly, contact
Signal span too small Power supply too high/low Rectify the power supply
Signal span drops Humidity has entered Assemble the cable correctly
Signal span drops/too small Diaphragm damaged, e.g. due to impacts,
If complaint is unjustied, we will charge you the complaint processing fees.
14018458.01 11/2011 GB/D/F/E
Mechanical overload caused by overpressure Replace instrument; if it fails repeatedly, contact
abrasive/aggressive medium; corrosion at
diaphragm/process connection
the manufacturer
the manufacturer
Contact manufacturer and replace instrument
GB
29WIKA operating instructions pressure switch model PSA-31
8. Faults / 9. Dismounting, return and disposal
CAUTION!
If deciencies cannot be eliminated by means of the measures listed above, shut down the
instrument immediately, and ensure that pressure and/or signal are no longer present, and
GB
9. Dismounting, return and disposal
9.1 Dismounting
Only disconnect the pressure switch once the system has been depressurised!
9.2 Returns
When returning the instrument, use the original packaging or a suitable transport package.
Enclose the completed return form with the instrument.
secure the instrument from being put back into operation inadvertently. In this case, contact
the manufacturer. If a return is needed, follow the instructions given in chapter 9.2 "Return".
WARNING!
Residual media in dismounted pressure switches can result in a risk to persons, the
environment and equipment.
Take sucient precautionary measures.
WARNING!
Absolutely observe the following when shipping the instrument:
All instruments delivered to WIKA must be free from any kind of hazardous substances
(acids, leachate, solutions, etc.).
The return form can be found under the heading ‘Service’ at www.wika.com
30 WIKA operating instructions pressure switch model PSA-31
14018458.01 11/2011 GB/D/F/E
Loading...