SKF 2340-00000108 User manual

Operating Instructions
Pressure Sensor for
Lubrication Systems
Part Numbers 2340-00000108 and 2340-00000118
Created on: 15.07.2021
Document no.: 951-181-028-EN
Version: 01
Read these instructions before
installation or start-up of the
product and keep them readily
available for later consultation!

2
Masthead
Manufacturer
SKF Lubrication Systems Germany GmbH
Email: [email protected]
www.skf.com/lubrication
Berlin Plant
Motzener Strasse 35/37
12277 Berlin
Germany
Tel. [phone]
Fax [phone]
Walldorf Plant
Heinrich-Hertz-Strasse 2-8
69190 Walldorf, Germany
Germany
Tel.: [phone]
Fax: [phone]
Warranty
The instructions contain no statements regarding the warranty
or liability for defects. That information can be found in our
General Terms of Payment and Delivery.
Training
We conduct detailed training in order to enable maximum
safety and efficiency. We recommend taking advantage of this
training. For further information, contact your authorized SKF
dealer or the manufacturer.

3
Table of contents
Masthead.............................................................................................2
Table of contents ...............................................................................3
Safety alerts, visual presentation, and layout................................4
1. Safety instructions ........................................................................5
1.1 Intended use ............................................................................5
1.2 Regulatory instruction regarding safety components........5
1.3 Persons authorized to use the product................................5
1.4 General behaviour when handling the product...................5
1.5 Transport, installation, maintenance, malfunctions, repair,
shutdown, disposal ........................................................................5
1.6 Initial commissioning / daily start-up...................................6
1.7 Foreseeable misuse ................................................................6
1.8 Notes on the type plate ..........................................................6
1.9 Note on Pressure Equipment Directive ...............................6
1.10 Note on UL mark ..................................................................6
2. Lubricants.......................................................................................7
2.1 General information................................................................7
2.2 Material compatibility .............................................................7
2.3 Temperature properties.........................................................7
2.4 Aging of lubricants ..................................................................7
2.5 Avoidance of faults and hazards ...........................................7
2.6 Solid lubricants........................................................................7
3. Overview, functional description .................................................8
3.1 Display and control elements ................................................8
3.2 Menu operation .......................................................................8
3.3 Adjustable parameters ...........................................................8
3.4 Output functions......................................................................9
3.5 Adjustable hysteresis ..............................................................9
3.6 Adjustable window ..................................................................9
3.7 Adjustable delay.................................................................... 10
3.8 Menu functions..................................................................... 10
3.9 IO-Link interface................................................................... 11
4. Technical data..............................................................................15
5. Delivery, returns, storage...........................................................16
5.1 Declaration of decontamination......................................... 16
6. Assembly.......................................................................................16
6.1 Safety instructions for installation..................................... 16
6.2 Mounting dimensions .......................................................... 16
6.3 Installation of G1/4" adapter and M12 socket ................. 17
6.4 Aligning and rotating the display........................................ 17
6.5 Electrical connection ............................................................ 18
7. First start-up................................................................................18
8. Operation......................................................................................18
9. Maintenance and repair .............................................................18
10. Cleaning......................................................................................18
10.1 Basics................................................................................... 19
10.2 Interior cleaning................................................................. 19
10.3 Exterior cleaning ................................................................ 19
11. Faults, causes, and remedies ..................................................19
12. Repairs........................................................................................19
13. Shutdown, disposal...................................................................19
13.1 Temporary shutdown........................................................ 19
13.2 Permanent shutdown, disassembly ................................ 19
13.3 Disposal............................................................................... 19
14. Spare parts and accessories ...................................................20
14.1 Pressure sensor assy ....................................................... 20
14.2 Pressure sensor assy ....................................................... 20
14.3 M12 coupling socket, 5-pin, A-coded, 90°.................... 20

4
Safety alerts, visual
presentation, and layout
While reading these instructions, you will encounter various
symbols, illustrations, and text layouts intended to help you
navigate and understand the instructions. Their meaning is
explained below.
Safety alerts:
Activities that present specific hazards (to life and limb or
possible damage to property) are indicated by safety alerts.
Always be sure to follow the instructions given in the safety
alerts.
<
DANGER
These safety alerts indicate an imminent danger.
Ignoring them will result in death or serious injury
<
WARNING
These safety alerts indicate potentially imminent
danger. Ignoring them could result in death or
serious injury
<
CAUTION
These safety alerts indicate potentially imminent
danger. Ignoring them could result in minor injury
<
NOTICE
These safety alerts indicate a potentially harmful
situation. Ignoring them could result in damage to
property or malfunctions
Illustrations:
The illustrations used depict a specific product. For other
products, they may have the function of a diagram only. This
does not alter the basic workings and operation of the product.
Text layout:
•First-order bulleted lists: Items on a bulleted list start with
a solid black dot and an indent.
–Second-order bulleted lists: If there is a further listing of
subitems, the second-order bulleted list is used.
1 Legend: A legend explains the numbered contents of an
illustration, presented as a numbered list. Items in a legend
start with a number (with no dot) and an indent.
–Second-order legend: In some cases, the numbered
contents of an image represent more than just one object.
A second-order legend is then used.
1.Instruction steps: These indicate a chronological sequence
of instruction steps. The numbers of the steps are in bold and
are followed by a period. If a new activity follows, the
numbering starts again at “1.”
–Second-order instruction steps: In some cases, it is
necessary to divide up a step into a few substeps. A
sequence of second-order instruction steps is then used.

5
1. Safety instructions
1.1 Intended use
The pressure sensor was developed to monitor the pressure of
lubricants that are compatible with stainless steel, ceramics,
and FKM. Pressure sensors are suitable for a very wide range of
applications, depending on the device and the mechanical
connection. The pressure sensor was made for use in a
machine or system. Proper functioning in accordance with the
specifications in these instructions is only ensured with original
SKF accessories. Do not make any changes to the pressure
sensor and do not use it other than as intended. In the case of
faults on the pressure sensor that cannot be remedied, shut it
down and secure it to prevent unauthorized use.
Use is only permitted within the scope of commercial or
economic activity by professional users, in compliance with the
specifications, technical data, and limits specified in this manual.
1.2 Regulatory instruction regarding
safety components
The devices described in these instructions are not safety
components according to the Machinery Directive 2006/42/EC.
The devices described must not be used in applications where
the safety of persons depends on the functioning of the device.
1.3 Persons authorized to use the
product
Operator
A person who is qualified by training, knowledge and experience
to carry out the functions and activities related to normal
operation. This includes avoiding possible hazards that may
arise during operation.
Specialist in mechanics
Person with appropriate professional education, knowledge and
experience to detect and avoid the hazards that may arise
during transport, installation, start-up, operation, maintenance,
repair and disassembly.
Specialist in electrics
Person with appropriate professional education, knowledge and
experience to detect and avoid the hazards that may arise from
electricity.
1.4 General behaviour when handling the
product
It is prohibited to commission or operate the product prior to
reading the Instructions and all other applicable documents. The
owner must ensure that any persons entrusted with works on
the product or persons who supervise or instruct the before-
mentioned group of persons have read and fully understood the
instructions. These Instructions must be kept for further use.
The product may be used only in awareness of the potential
dangers, in proper technical condition, and according to the
information in these instructions. All work steps and safety
instructions relevant for the respective activity as well as the
internal instructions must be observed. Uncertainty seriously
endangers safety. Responsibilities for different activities must be
clearly defined and observed. In addition to these Instructions,
general statutory regulations for accident prevention and
environmental protection must be observed.
Any malfunctions which may affect safety must be remedied
within the scope of responsibility. Immediately inform your
superior in the case of faults beyond your competence. Safety-
related protective and safety equipment must not be removed,
modified or affected otherwise in its function and is to be
checked at regular intervals for completeness and function.
Unauthorized conversions and modifications may result in
unforeseeable impacts on safety and functionality. Therefore,
any unauthorized conversions or modifications are expressly
prohibited.
Repair or maintenance work may be carried out only with the
spare parts and accessories offered by SKF for the respective
product.
Any unclear points regarding proper condition or correct
assembly/ operation must be clarified. Operation is prohibited
until issues have been clarified.
The painting of all plastic parts, visual monitoring devices and
seals is prohibited. Tape or remove parts completely before
painting.
Maintain electrical equipment in proper condition. This must
be ensured by regular repeat tests in accordance with the
relevant standards and technical regulations in force. The type,
period and scope of testing must be determined according to
the risk analysis to be carried out by the operator. Work on
electrical components must be carried out by electrical
specialists only. Carry out electrical connections only according
to the information in the valid connection diagram and taking
the relevant regulations and the local connection conditions into
account. For electrical equipment that must be protected
against the effects of lightning during use, the operator must
take appropriate measures. The electrical equipment is not
equipped with an earthing system to dissipate the relevant
electrical charge and does not have the necessary voltage
resistance with regard to lightning strikes.
1.5 Transport, installation, maintenance,
malfunctions, repair, shutdown, disposal
All relevant persons must be informed of the activity prior to
starting any work. Before carrying out any work, take at least
the following safety measures:
•Keep unauthorized persons away.
•Mark and secure work area.
•Cover neighbouring units that are live.
•Dry or cover wet, slippery surfaces accordingly.
•Cover hot or cold surfaces accordingly.
Where applicable:
•Depressurize
•Disconnect and secure against being switched on again
•Check that no electrical voltage is present
•Earth and short-circuit
Protect the product against humidity, dust and vibrations and
install it in an easily accessible position. Ensure sufficient
distance to sources of heat or cold. Possibly existing visual

6
monitoring devices, e.g. pressure gauges, MIN/MAX markings or
oil inspection glasses, must be clearly visible. Observe
prescriptions regarding the installation position.
Undertake drilling only at non-critical, non-load bearing parts
of the operator’s infrastructure. Use available boreholes, if
possible. Other units must not be damaged or impaired in their
function by the installation. Lubricant lines must be primed with
lubricant prior to installation. This makes the subsequent
ventilation of the system easier.
Avoid friction points during installation. Block moving or
detached parts during work. Observe the specified tightening
torques.
If protective and safety equipment has to be dismantled, it
must be reassembled immediately after finishing the work, and
then checked for correct function.
Before using new parts, check them for conformity with the
intended use. Avoid mixing up or wrong assembly of dismantled
parts. Mark these parts accordingly. Clean dirty parts.
The components used must be suitable for the intended use
and the existing operating conditions, such as maximum
operating pressure and ambient temperature range, and must
not be subjected to torsion, shear and bending stress.
In case of an emergency a stop is carried out by the measures
specified by the operator, e.g. by actuating the emergency stop
switch of the superior machine or by interrupting the power
supply.
For electrical products the following must also be observed:
•Carry out works on electrical components only while the
system is depressurized and use tools suitable for electrical
works only.
•Do not touch cables or electrical components with wet or
damp hands.
•Fuses must not be bypassed. Replace defective fuses always
by fuses of the same type.
•Ensure proper connection of the protective conductor in case
of products of protection class I. Observe the stated type of
protection.
1.6 Initial commissioning / daily start-up
Ensure that:
•all safety devices are completely available and functional.
•all connections are correctly connected.
•all parts are correctly installed.
•all warning labels on the product are present completely,
highly visible and undamaged.
•illegible or missing warning labels are to be replaced without
delay.
1.7 Foreseeable misuse
Any usage of the product other than as specified in this manual
is strictly prohibited. Particularly prohibited are:
•Use of non-specified consumables, contaminated lubricants,
or lubricants with air inclusions.
•Use of C3 versions in areas with aggressive, corrosive
substances (e.g., high salt load).
•Use of plastic parts in areas with high exposure to ozone, UV
light, or ionizing radiation.
•Use to supply, convey, or store hazardous substances and
mixtures as defined in the CLP Regulation (EC 1272/2008) or
GHS with acute oral, dermal, or inhalation toxicity or
substances and mixtures that are marked with hazard
pictograms GHS01-GHS06 and GHS08.
•Use to supply, convey, or store Group 1 fluids classified as
hazards as defined in the Pressure Equipment Directive
(2014/68/EU) Article 13 (1) a).
•Use to supply, convey, or store gases, liquefied gases,
dissolved gases, vapors, or fluids whose vapor pressure
exceeds normal atmospheric pressure (1013 mbar) by more
than 0.5 bar at their maximum permissible operating
temperature.
•Use in an explosion protection zone.
•Use without proper securing against excessively high
pressures, in the case of pressurized products.
•Use outside of the technical data and limits specified in this
manual.
1.8 Notes on the type plate
The type plate provides important data such as the type
designation, order number, and sometimes regulatory
characteristics. To avoid loss of this data in case the type plate
becomes illegible, it should be entered in the manual.
1.9 Note on Pressure Equipment
Directive
Due to its performance characteristics, the product does not
reach the limit values defined in Article 4, Paragraph 1,
Subparagraph (a) (ii) and is excluded from the scope of Pressure
Equipment Directive 2014/68/EU in accordance with Article 1,
Paragraph 2 Subparagraph (f).
1.10 Note on UL marking
The UL marking certifies that the product has UL
certification of compliance with U.S. and Canadian
safety regulations.

7
2. Lubricants
2.1 General information
Lubricants are selected specifically for the relevant application.
The manufacturer or operator of the machine should ideally
make the selection in consultation with the supplier of the
lubricant. If you have no or little experience in selecting
lubricants for lubrication systems, please contact us. We would
be happy to assist you in selecting suitable lubricants and
components to build a lubrication system optimized for your
particular application. Consider the following points when
selecting/using lubricants. This will spare you potential
downtime and damage to the machine or lubrication system.
2.2 Material compatibility
The lubricants must generally be compatible with the following
materials:
•Plastics: ABS, CR, FPM, NBR, NR, PA, PET, PMMA, POM, PP,
PS, PTFE, PU, PUR
•Metals: steel, gray cast iron, brass, copper, aluminum
2.3 Temperature properties
The lubricant used must be suitable for the specific ambient
temperature of the product. The viscosity approved for proper
functioning must neither be exceeded at low temperatures nor
fall too low at high temperatures. For the approved viscosity,
see the “Technical data” chapter.
2.4 Aging of lubricants
Based on past experience with the lubricant used, checks should
be conducted at regular intervals defined by the operator, to
determine whether the lubricant needs to be replaced due to
aging processes (oil separation). In case of doubt regarding the
continued suitability of the lubricant, it must be replaced before
the system is started up again. If you do not yet have any
experience with the lubricant used, we recommend conducting
a check after just one week.
2.5 Avoidance of faults and hazards
To avoid faults and hazards, please observe the following:
•When handling lubricants, observe the relevant safety data
sheet (SDS) and any hazard labeling on the packaging.
•Due to the large number of additives, some lubricants that
meet the pumpability requirements specified in the manual
are not suitable for use in centralized lubrication systems.
•Whenever possible, always use SKF lubrication greases. They
are ideal for use in lubrication systems.
•Do not mix lubricants. This can have unpredictable effects on
the properties and usability of the lubricant.
•Use lubricants containing solid lubricants only after technical
consultation with SKF.
• The lubricant’s ignition temperature has to be at least
50 kelvin above the maximum surface temperature of the
components.
2.6 Solid lubricants
Solid lubricants may only be used after prior consultation with
SKF. When solid lubricants are used in lubrication systems, the
following rules generally apply:
Graphite:
•Maximum graphite content 8%
•Maximum grain size 25 μm (preferably in lamellar form)
MoS2:
•Maximum MoS2 content 5%
•Maximum grain size 15 μm
Copper:
•Lubricants containing copper are known to lead to coatings
forming on pistons, bore holes, and mating surfaces. This can
result in blockages in the centralized lubrication system.
Calcium carbonate:
•Lubricants containing calcium carbonate are known to lead to
very heavy wear on pistons, bore holes, and mating surfaces.
Calcium hydroxide:
•Lubricants containing calcium hydroxide are known to harden
considerably over time, which can lead to failure of the
centralized lubrication system.
PTFE, zinc, and aluminum:
•For these solid lubricants, it is not yet possible to define any
limit values for use in lubrication systems on the basis of
existing knowledge and practical experience.

8
3. Overview, functional
description
3.1 Display and control elements
Fig. 1
Overview of the display and control elements
1 Four red LEDs for change of units (bar, mbar, PSI, MPa)
2 IO-Link LED (red): IO-Link status display
3 Out 1 LED (yellow): status display for switching output 1
4 Out 2 LED (green): status display for switching output 2
5 Red 7-segment display for measured values and parameters
6 Button for menu selection and for confirm/enter
7 Button for navigating in the menu
Table 1
LED status
<Content>
IO-Link LED
(red)
On IO-Link active (master-slave operation)
Off IO-Link inactive (master-slave
operation)
Out 1 LED
(yellow)
On Switching point 1 reached,
switching output active
Off Switching point not reached
Out 2 LED
(green)
On Switching point 2 reached,
switching output active
Off Switching point not reached
Table 2
Button function
<Content>

Press briefly Scroll from menu 1 to menu 5,
then back to the display
Press and hold Quickly increase a parameter
value

Press briefly Select the menu item in a menu
Press and hold Apply the set parameters and go
back to the current menu item
 
Press both
buttons at the
same time
Go back to the display
The pressure sensor is configured according to VDMA 24574-1
NOTE
If no button is pressed for 60 seconds, the program goes
back to the display without saving the modified value.
3.2 Menu operation
Example using menu items 1 to 5:
1 Go to menu 1 with the button  .
2 Use the button  to display the values for switching point 1.
The selected value flashes.
3 Use the button  to select a value. Confirm the selected
value with the button
 and go back to menu 1.
4 Go to the next menu with the button  and set the value as
described in steps 2 and 3.
5 Go to menu 5 with the button  .
6 Go to the first submenu 5/1 with the button  and set the
value as described in steps 2 and 3.
7 Close the menu by simultaneously pressing both buttons 
 .
3.3 Adjustable parameters
Table 3
Adjustable parameters
<Content>
Menu item Designation Factory setting Own
setting
Menu 1
SP 1 / FH 1
Switching point 1
/ window high 1
75 % of the
measuring span
Menu 2
rP 1 / FL 1
Release point 1
/ window low 1
74 % of the
measuring span
Menu 3
SP 2 / FH 2
Switching point 2
/ window high 2
85 % of the
measuring span

9
Table 3
Adjustable parameters
<Content>
Menu 4
rP 2 / FL 2
Release point 2
/ window low 2
84 % of the
measuring span
Menu 5/2
d5 1
ON delay 1 0.0 s
Menu 5/3
dr 1
OFF delay 1 0.0 s
Menu 5/4
d5 2
ON delay 2 0.0 s
Menu 5/5
dr 2
OFF delay 2 0.0 s
Menu 5/6
ou 1
Switching
function of output
1
Hno
Menu 5/7
ou 2
Switching
function of output
2
Hno
Men 5/8
un
Units bar
Menu 5/14
dAP
Measurement
damping
0 ms
Menu 5/15
codE
Password 0000
Menu 5/16
o 1
Output signal 1 PNP
Menu 5/17
o 2
Output signal 2 PNP
3.4 Output functions
Possible settings of the outputs:
1 × PNP, NO/NC selectable, 1 × 0…10 V
1 × NPN, NO/NC selectable, 1 × 0…10 V
1 × PNP, NO/NC selectable, 1 × 4…20 mA
1 × NPN, NO/NC selectable, 1 × 4…20 mA
2 × PNP, NO/NC selectable
2 × NPN, NO/NC selectable
3.5 Adjustable hysteresis
With the hysteresis function, the pressure sensor switches on at
a certain pressure (e.g. 210 bar) and switches off when the
pressure drops below the set hysteresis (e.g. set to 30 bar). The
difference between the switching point (SP) and the release
point (rP) is called the hysteresis. With electronic pressure
sensors, it can be set as desired within the measuring range.
Hysteresis function: The hysteresis maintains stability in the
switching of the outputs, even when the system pressure
fluctuates around the setpoint. When the system pressure is
rising, the output is switched when the relevant switching point
(SP) is reached. When the pressure drops again, the output
does not switch back until the release point (rP) is reached.
Fig. 2
Hysteresis function
3.6 Adjustable window
The window function is used to monitor a certain pressure
range and for the issuing of error messages. For example, if the
pressure of the monitored zone of a lubrication system has to
be between 30 bar and 80 bar, the pressure sensor issues the
corresponding event codes (see Table 9) when these set values
are violated. The output function is activated when the
measured value is between the set switching point and release
point.
Window function: The range between a defined lower
pressure limit and a defined upper limit is called the window. A
switching action is triggered as soon as the pressure goes
beyond the upper or lower limit of this range.

10
Fig. 3
Window function
3.7 Adjustable delay
The delay can be used to reliably filter out unwanted pressure
peaks of short duration. With this function, the switching output
does not change its status immediately when the switching
event is reached, but only after a certain user-selected delay of
0…50 s. If the switching event no longer exists at the end of the
delay time, the switching output does not change.
Fig. 4
Delay function
3.8 Menu functions
NOTE
Display: the firmware version (e.g. N007) is displayed for
about 2 seconds after switch-on.
Table 4
First menu level
<Content>
Menu 1 and
Menu 3
SP 1 / SP 2
FH 1 / FH 2
Setting the switching points
Setting of the values at which the
switching points 1 and 2 respectively
are activated. If the window function is
activated in menu 5/6 or 6/7
respectively, the value of the switching
point is the upper pressure limit of the
window (window high).
Menu 2
and
menu 4
rP 1 / rP 2
FL 1 / FL 2
Setting the release points
Setting of the values at which the
release points 1 and 2 respectively are
activated. If the window function is
activated in menu 5/6 or 6/7
respectively, the release value of the
switching point is the lower pressure
limit of the window (window low). The
release point must be below the value
of the corresponding switching point.
(Additional menu)
ASt2 / AEn2
If output signal 2 is active (5/17)
Analog output 2 (offset ±5 % of the
measuring range) / analog output 2
(end point 90…100 % of the measuring
range), e.g. for a sensor with measuring
range 0…10 bar:
•Measuring range start ASt2 can be
set between -0.5 and +0.5 bar
(4 mA/0 V).
•Measuring range end AEn2 can be
set between 9 and 10 bar
(20 mA/10 V).
Menu 5 Advanced functions
(transition to menu level two) 
Table 5
Second menu level
<Content>
Menu 5/1
rES
Reset
Reset of all adjustable parameters to
their factory setting and deletion of the
Min. and Max. values.
Yes
No
Menu 5/1 and
Menu 5/4
d5 1 / d5 2
Setting of the ON delay
Setting of the value for the ON delay
after the switch-on point 1 or 2 is
reached (0.0…50.0 s)

11
Table 5
Second menu level
<Content>
Menu 5/3 and
Menu 5/5
dr 1 / dr 2
Setting of the OFF delay
Setting of the value for the OFF delay
after the switch-off point 1 or 2 is
reached (0.0…50.0 s)
Menu 5/6 and
Menu 5/7
ou 1 / ou 2
Setting of the switching
outputs 1 and 2
Switching function of the switching
outputs:
•Hno = hysteresis function, NO contact
•Hnc = hysteresis function, NC contact
•F no = window function, NO contact
•F nc = window function, NC contact
Menu 5/8
un
Change the units of measurement
Select the physical units of
measurement for the displayed and set
pressure values:
bAr = bar
PSI = PSI
mba = mbar
∏PA = MPa
Menu 5/9
FLIP
Rotate the display 180°
Menu 5/10
Lo
Min. value (display only)
Display of the lowest pressure that was
applied during the measurement (the
value is lost when the power supply is
interrupted)
Menu 5/11
Hi
Max. value (display only)
Display of the highest pressure that
was applied during the measurement
(the value is lost when the power
supply is interrupted)
Menu 5/12
----
Deletion of the Min. and Max.
values
Execution of the deletion of the values
is confirmed on the display
Menu 5/13
SEEO
Zero point adjustment
Setting/correction of the zero point of
the display and of the analog output
signal by up to ±3 % of the nominal
pressure range.
YES
NO
Menu 5/14
dAP
Measurement damping
Setting of the value for measurement
damping
(0…1000 ms in steps of 10 ms)
Table 5
Second menu level
<Content>
Menu 5/15
codE
Access protection
Setting of the password for access
protection of the menu
•0000 = no password (deactivated)
•0000…9999 can be set (activated)
Menu 5/16
o1
Output signal 1
Selection options:
•PnP = PNP function
•nPn = NPN function
Menu 5/17
o2
Output signal 2
Selection options:
•PnP = PNP function
•nPn = NPN function
•i = 4...20 mA current output
•u = 0…10 V voltage output
Menu 5/18
Pcnt
Display of the number of pressure
peaks counted
3.9 IO-Link interface
Table 6
General device information
<Content>
Baud rate COM 2 (38.4 kbaud)
Input process data length 2 bytes
Minimum cycle time 5 ms
IO-Link version V1.1 (backwards compatible
with V1.0)
SIO mode Yes
SIO mode
Our pressure sensors with IO-Link support both SIO mode and
IO-Link mode.
SIO mode (standard IO mode)
In SIO mode, the sensor works like a normal pressure sensor
with standard output signals. Pin 4 (output 1) of the M12
connector is always a digital output. Pin 2 (output 2) provides
either another digital output or an analog output, depending on
the configuration selected.
IO-Link mode (communication mode)
If the sensor is working under an IO-Link master, the pressure
sensor goes into IO-Link communication mode. The IO-Link
communication uses pin 4 of the M12 connector.

12
Diagnostic capabilities
The pressure sensors have additional diagnostic capabilities that
can transmit information both via the IO-Link mode and, in
part, via the display (operating hours and pressure peaks).
•Operating hours counter
The device counts the elapsed hours of operation of the
pressure sensor while the power supply is connected. The
operating hours cannot be reset.
•Pressure peak counter
The pressure peak counter detects any pressure peaks (both
positive and negative). Although it counts the number of
pressure peaks, the value of each peak is not determined,
because the peaks lie outside the measuring range.
•Temperature
The device is able to transmit a value for the internal
temperature of the controller. This is not a calibrated measuring
system and therefore does not supply an actual temperature.
The values transmitted are intended solely for comparison with
one another, to allow conclusions to be drawn about the
process or about the lifetime of the device.
Process data
The process data length of the pressure sensor is 16 bits. The
process data transmits the states of the two switching outputs
(BCD1 and BCD2) and the current measurement value. The 14
bits of the measurement value are scaled according to the
measuring range of the sensor.
NOTE
Please pay attention to the order of the bits, to avoid
misinterpretation of the process value.
Table 7
Process data
<Content>
Bit 15 Bit 14 … 2 Bit 1 Bit 0
Signed bit Measureme
nt value
BDC2 /
output 2
BDC1 /
output 1
Measuring range
(bar)
Value range Multiplier
0…400 0…4000 x 0.1
0…600 0…6000 x 0.1
Table 8
Error Codes
<Content>
Error Code Description
0x8011 Index not available
0x8012 Subindex not available
0x8023 Access denied
Table 8
Error Codes
<Content>
0x8030 Parameter value out of range
0x8033 Parameter length overrun
0x8034 Parameter length underrun
Table 9
Event Codes
<Content>
Definition Event Codes
IO-Link
Device
Status
Type
1.1 1.0
No malfunction
0x0000 0
Notificati
on
General
malfunction
Unknown error
0x1000 4 Error
Process variable
range overrun
Process data
uncertain
0x8C10 2 Warning
Process variable
range underrun
Process data
uncertain
0x8C30 0x8C10 2 Warning

13
Parameter data
The parameter data of the pressure sensor correspond to the Smart Sensor Profile (V1.0).
Table 10
Parameter data
Index
hex
Subindex
hex
Object Name Single Value Default Comments
0x02 0x00 System Commands 0x81: Delete Min/Max Value
0x82: res
0xA0: Set0
0x03 0x00 Data Storage Index 0x01: Upload Start
0x02: Upload End
0x03: Download Start
0x04: Download End
0x05: Data Storage Break
0x0C 0x00 Device Access
Lock
0x00: Unlocked
0x01: Parameter Access Lock
0x02: Data Storage Lock
0x04: Parameterization Lock
0x08: User Interface Lock
0x03: Parameter Access Lock
+ Data Storage Lock
0x05: Parameter Access Lock
+ Parameterization Lock
0x09: Parameter Access Lock
+ User Interface Lock
0x06: Data Storage Lock
+ Parameterization Lock
0x0A: Data Storage Lock
+ User Interface Lock
0x07: Data Storage Lock
+ Parameter Access Lock
+ Parameterization Lock
0x0B: Data Storage Lock
+ Parameter Access Lock
+ User Interface Lock
0x00: Unlocked
0x24 0x00 Device Status 0x00: Device is operating
properly
0x02: Out-of-Specification
0x04: Failure
0x3D 0x01 SwitchPoint Logic 1 0x00: Value as specified
0x02 SwitchPoint
Mode 1
0x80: Hysteresis NO
0x81: Hysteresis NC
0x82: Window NO
0x83: Window NC
0x80: HNo
0x03 SwitchPoint
Hysteresis 1
0x0000: No Hysteresis
0x3F 0x01 SwitchPoint Logic 2 0x00: Value as specified
0x02 SwitchPoint
Mode 2
0x80: Hysteresis NO
0x81: Hysteresis NC
0x82: Window NO
0x83: Window NC
0x80: HNo

14
Table 10
Parameter data
Index
hex
Subindex
hex
Object Name Single Value Default Comments
0x03 SwitchPoint
Hysteresis 2
0x0000: No Hysteresis
0x93 0x00 SwitchPoint Type 1 0x00: PNP Output
0x01: NPN Output
0x97 0x00 SwitchPoint Type 2 0x00: PNP Output
0x01: NPN Output
0x02: 0...10 V Output
0x03: 4...20 mA Output
0x50 0x00 Rotate Display 0x00: 180°
0x01: 0°
0x01: 0°
0xD4 0x00 Unit 0x00: bar
0x01: mbar
0x02: PSI
0x03: MPa
0x00: bar The pressure unit of the display
is changed. The IO-Link process
data does not change.
Table 11
Other parameter data
Index
hex
Subindex
hex
Object name Access Length Value Range Gradient Unit Default
0x3C 0x01 SetPoint 1 = SP1 R/W 2 bytes Process Data 75%
0x02 SetPoint 2 = rP1 R/W 2 bytes Process Data 74 %
0x3E 0x01 SetPoint 1 = SP2 R/W 2 bytes Process Data 85 %
0x02 SetPoint 1 = rP2 R/W 2 bytes Process Data 84 %
0x52 0x00 Temperature R 2 bytes -40…150 1 °C 0
0x57 0x00 Operating hours R 4 bytes 0…4294967295 1 H 0
0x60 0x00 Password W 2 bytes 0000…9999 0
0x98 0x00 Pressure peaks R 4 bytes 0…4294967295 1 0
0xD0 0x00 Delay Switching Time 1 R/W 2 bytes 0…500 0.1 s 0
0xD1 0x00 Delay Back Switching Time 1 R/W 2 bytes 0…500 0.1 s 0
0xD2 0x00 Delay Switching Time 2 R/W 2 bytes 0…500 0.1 s 0
0xD3 0x00 Delay Back Switching Time 2 R/W 2 bytes 0…500 0.1 s 0
0xD5 0x00 Min Pressure Value R 2 bytes Process Data
0xD6 0x00 Max Pressure Value R 2 bytes Process Data
0xD7 0x00 Measure damping R/W 2 bytes 0…1000 in 10 ms steps 1 ms 0
Negative values are presented in complement format.

15
4. Technical data
Table 12
T
echnical data for pressure sensor 2340-00000108
Electrical data Mechanical data
Operating voltage U
B
18…30 V DC Quick coupling connection M12 connector, 4-pin, A-coded
Output voltage ≤ 150 mA Housing material PE, stainless steel (1.4301)
Interface IO-Link V1.1 Process connection G1/4"
No-load current lo ≤ 50 mA Process connection material Stainless steel (1.4301)
Protected against polarity
reversal
Y
es Measuring cell material
Ceramic with FKM seal (internal),
welded stainless steel Short-circuit-proof
Y
es
Switching frequency ≤170 Hz
Accuracy acc. to IEC 60770 ≤ ±0.5 % FSO BFSL Packing ring material FKM
Temperature error ≤ ±0.3 % FSO/10 K Enclosure rating IP 67
Display Ambient conditions
Function indicators LED
A
mbient temperature -40 to 85 °C
Display 7-segment display Media temperature -40 to 125 °C
Pressure data
T
orque
Nominal pressure 0 to 600 bar Process connection G1/4" 5 Nm
Overpressure 1,000 bar
Burst pressure 1,570 bar
Permissible negative pressure
V
acuum-proof
Table 13
T
echnical data for pressure sensor 2340-00000118
Electrical data Mechanical data
Operating voltage U
B
18…30 V DC Quick coupling connection M12 connector, 4-pin, A-coded
Output voltage ≤ 150 mA Housing material PE, stainless steel (1.4301)
Interface IO-Link V1.1 Process connection G1/2"
No-load current lo ≤ 50 mA Process connection material Stainless steel (1.4301)
Protected against polarity
reversal
Y
es Measuring cell material
Ceramic with FKM seal (internal),
welded stainless steel Short-circuit-proof
Y
es
Switching frequency ≤170 Hz
Accuracy acc. to IEC 60770 ≤ ±0.5 % FSO BFSL Packing ring material FKM
Temperature error ≤ ±0.3 % FSO/10 K Enclosure rating IP 67
Display Ambient conditions
Function indicators LED
A
mbient temperature -40 to 85 °C
Display 7-segment display Media temperature -40 to 125 °C
Pressure data
T
orque
Nominal pressure 0 to 400 bar Process connection G1/2"
1
0 Nm
Overpressure 600 bar
Burst pressure 1,570 bar
Permissible negative pressure
V
acuum-proof

16
5. Delivery, returns, storage
5.1 Declaration of decontamination
If the product came in contact with harmful substances, make
sure to thoroughly clean the product before returning it to us.
Due to statutory provisions and for the safety of our employees
and operation facilities we further need a fully completed and
signed “Declaration of decontamination”.
6. Assembly
6.1 Safety instructions for installation
NOTICE
Damage is possible
The pressure sensor must not be subjected to
high temperatures or rapid pressure increases.
The diaphragm of the pressure sensor is very
sensitive to mechanical stresses. Do not touch the
diaphragm during installation, as it may tear or
warp. Install the pressure sensor only when the
system is depressurized and deenergized.
When installing outdoors or in damp environments, note the
following:
•Select an installation position that allows splashed or
condensed water to drip off. Make sure liquid cannot
accumulate on sealing surfaces.
•So that no moisture can enter the connector, connect the
device electrically immediately after installation. Otherwise,
prevent the entry of moisture (using a suitable protective cap,
for example).
•The degree of protection specified on the datasheet applies to
the connected device.
•Install the device so it is protected from direct sunlight.
Sunlight can impair the functionality of the device and
damage the device.
•In the case of devices with a relative reference point in the
enclosure (IP67 version with small visible hole next to the
electrical connection), install them so that the relative
reference point required for measurement is protected from
dirt and moisture. If the device is exposed to the admission of
fluids, the air pressure compensation through the relative
reference point will be blocked. Precise measurement is not
possible in such a state. The device could also be damaged.
•In damp environments and when the device is wet, do not
rotate the device into a desired position and do not use the
buttons to operate it.
• If there is a risk of damage from lightning strike or
overvoltage, install overvoltage protection between the
control cabinet and the device.
• With hydraulic systems, position the device so that the
pressure port is pointing up (for air bleed).
•The installation must not place any mechanical stress on the
pressure port, as that could cause the characteristic curve to
shift. This especially applies in the case of very small pressure
ranges.
•Do not remove the packaging or the protective cap until
shortly before installation, to prevent damage to the
diaphragm. Keep the protective cap for later use.
•After uninstalling, put the protective cap back over the
diaphragm immediately.
•When mounting the sensor, do not use force otherwise the
device or system could be damaged.
•Before installing, also check the following:
• Is there a seal suitable for the medium and the pressure
being measured
•Does the sealing face of the receiving part have an
undamaged surface
•Is there any residue on that surface
•Is the O-ring seated in the groove provided without damage
(in the case of sensors with a male thread and process
adapter)
•In the case of pressure sensors with a male thread, do not
use additional sealing material such as hemp or PTFE tape.
6.2 Mounting dimensions
Fig. 5
Mounting dimensions of pressure sensor 2340-00000108

17
Fig. 6
Mounting dimensions of G1/4" adapter for pressure sensor
2340-00000108
Fig. 7
Mounting dimensions of pressure sensor 2340-00000118
6.3 Installation of G1/4" adapter and
M12 socket
1.Initially, screw the adapter by hand into the receiving thread
on the pressure sensor.
2.Tighten the adapter with an open-end wrench (WAF 22),
observing the permissible torque of 5 Nm .
3. Insert the M12 socket on the M12 connector and hand-
tighten it.
Fig. 8
Installation of G1/4" adapter and M12 socket
6.4 Aligning and rotating the display
The display screen may need to be aligned, depending on the
installation location and position of the pressure sensor.
To do this, proceed as follows.
1.Turn the upper part of the pressure sensor by hand until you
can see the display clearly.
2.If the pressure sensor is installed by suspending it from
something, it is possible to rotate the display on the screen
through 180° (menu 5/9 FLIP).

18
Fig. 9
Display and connection enclosure
6.5 Electrical connection
The devices have selectable outputs that can be parameterized
both on the device and also via IO-Link.
Fig. 10
Wiring diagram of sensor with selectable outputs
Table 14
Pin assignment of M12 port
Pin Signal
1 Power +
2 Out 2
PNP/NPN 4…20 mA/0…10 V (selectable)
3Power-
4 Out 1
PNP/NPN/IO-Link (selectable)
7. First start-up
The products described do not require any special procedure for
initial start-up.
8. Operation
SKF products operate automatically to the greatest possible
extent.
Basically, activities during standard operation are limited to:
•Regular function checks
•Regular checks for contamination or damage
9. Maintenance and repair
The device is essentially maintenance-free. Depending on the
lubricant used, contamination of the diaphragm may occur.
Such contamination must then be removed.
10. Cleaning
<
NOTICE
Damage to the device
Incorrect cleaning can cause irreparable damage
to the measuring cell of the pressure sensor.
Never use sharp objects or operating air to clean
the diaphragm.
If needed, the enclosure of the device can be cleaned with a
damp cloth and a non-aggressive cleaning solution, after
switching off the device. However, depending on the lubricant,
deposits and contamination may occur on the diaphragm. If this
is the case, the operator must establish appropriate cleaning
intervals. After shutting down the device properly, the
diaphragm can be cleaned carefully with a non-aggressive
cleaning solution and a soft brush or sponge.

19
10.1 Basics
Cleaning should be carried out in accordance with the operator's
own company rules, and cleaning agents and devices and the
personal protective equipment to be used should likewise be
selected in accordance with those rules. Only cleaning agents
compatible with the materials may be used for cleaning.
Completely remove any cleaning agent residue left on the
product and rinse with clear water. Unauthorized persons must
be kept away. Use signage to indicate wet areas.
10.2 Interior cleaning
The interior normally does not need to be cleaned. The interior
of the product must be cleaned if incorrect or contaminated
lubricant accidentally enters the product. Please contact our
Service department.
10.3 Exterior cleaning
Do not allow any cleaning fluid to enter the interior of the
product during cleaning.
<
WARNING
Risk of fatal electric shock
Cleaning work may only be performed on
products that have been de-energized first. When
cleaning electrical components, be mindful of the
IP enclosure rating.
<
WARNING
Serious injury from contact with or inhalation
of hazardous substances
Wear personal protective equipment. Observe the
safety data sheet (SDS) of the hazardous
substance. Avoid contaminating other objects or
the environment during cleaning.
11. Faults, causes, and
remedies
Faults and malfunctions can be identified and remedied
according to the specifications in the tables Error Codes and
Event Codes.
12. Repairs
The device contains no parts which can be repaired by the user.
In the event of a defect, the pressure sensor must be replaced
with a new pressure sensor.
13. Shutdown, disposal
13.1 Temporary shutdown
Temporary shutdowns should be done by a course of action to
be defined by the operator.
13.2 Permanent shutdown, disassembly
Permanent shutdown and disassembly of the product must be
planned properly by the operator and conducted in compliance
with all applicable laws and regulations.
13.3 Disposal
The waste producer/operator must dispose of the various types
of waste in accordance with the applicable laws and regulations
of the country in question.

20
14. Spare parts and accessories
Spare parts may be used exclusively for replacement of identical defective parts. Modifications with spare parts on existing products are
not allowed.
Accessories are used to extend, supplement the functional range or to assemble the product.
Table 15
14.1 Pressure sensor assy
Designation Pcs. Item number Figure
Pressure sensor assy
Including separate adapter G1/4 to EN 2852 and M12 coupling
socket, 5-pin, A-coded 90°
1 2340-00000108
Table 16
14.2 Pressure sensor assy
Designation Pcs. Item number Figure
Pressure sensor assy 1 2340-00000118
Table 17
14.3 M12 coupling socket, 5-pin, A-coded, 90°
Designation Pcs. Item number Figure
M12 coupling socket, 5-pin, A-coded 90° 1 236-10022-6