Endress+Hauser Liquiphant FTL64 User manual

Products Solutions Services
Operating Instructions
Liquiphant FTL64
Vibronic
Point level switch for liquids in high-temperature
applications
BA02037F/00/EN/02.20
71498548
2020-11-30
Valid as of version
01.00.zz

Liquiphant FTL64
2 Endress+Hauser
Order code:
Ext. ord. cd.:
Ser. no.:
www.endress.com/deviceviewer Endress+Hauser
Operations App
XXXXXXXXXXXX
XXXXX-XXXXXX
XXX.XXXX.XX
Serial number
1.
3.
2.
A0023555

Liquiphant FTL64 Table of contents
Endress+Hauser 3
Table of contents
1 About this document ................ 5
1.1 Symbols ............................. 5
1.1.1 Safety symbols .................. 5
1.1.2 Electrical symbols ................ 5
1.1.3 Symbols for certain types of
information .................... 5
1.1.4 Symbols in graphics ............... 5
1.1.5 Registered trademarks ............. 6
2 Basic safety instructions ............ 6
2.1 Requirements for the personnel ............ 6
2.2 Designated use ........................ 6
2.2.1 Incorrect use .................... 6
2.3 Workplace safety ....................... 7
2.4 Operational safety ...................... 7
2.5 Product safety ......................... 7
2.6 IT security ............................ 7
3 Product description ................. 7
3.1 Product design ........................ 8
4 Incoming acceptance and product
identification ....................... 8
4.1 Incoming acceptance .................... 8
4.2 Product identification .................... 9
4.2.1 Nameplate ..................... 9
4.2.2 Manufacturer address ............. 9
4.3 Storage and transport ................... 9
4.3.1 Storage conditions ................ 9
4.3.2 Transporting the device ............ 9
5 Installation ....................... 10
5.1 Installation conditions .................. 10
5.1.1 Pay attention to temperature ....... 10
5.1.2 Take switch point into consideration .11
5.1.3 Take viscosity into consideration .... 11
5.1.4 Avoid buildup .................. 12
5.1.5 Take clearance into consideration ... 13
5.1.6 Support the device .............. 13
5.2 Mounting the measuring device ........... 14
5.2.1 Required tool .................. 14
5.2.2 Installation .................... 14
5.3 Sliding sleeves ....................... 15
5.4 Post-installation check .................. 16
6 Electrical connection .............. 16
6.1 Connection conditions .................. 16
6.1.1 Cover with securing screw ......... 16
6.1.2 Connecting protective earth (PE) .... 16
6.2 Connecting the measuring device .......... 17
6.2.1 2-wire AC (electronic insert FEL61) .17
6.2.2 3-wire DC-PNP (electronic insert
FEL62) ....................... 19
6.2.3 Universal current connection with
relay output (electronic insert
FEL64) ....................... 21
6.2.4 DC connection, relay output
(electronic insert FEL64 DC) ....... 23
6.2.5 PFM output (electronic insert
FEL67) ....................... 25
6.2.6 2-wire NAMUR > 2.2 mA/ < 1.0 mA
(electronic insert FEL68) .......... 27
6.2.7 LED module VU120 (optional) ...... 28
6.2.8 Bluetooth module VU121 (optional) .30
6.2.9 Connecting the cables ............ 31
6.3 Post-connection check .................. 31
7 Operation options ................. 32
7.1 Overview of operation options ............ 32
7.1.1 Operating concept .............. 32
7.1.2 Functional test using the button on
the electronic insert .............. 32
7.1.3 Functional test of the electronic
switch with a test magnet ......... 35
7.1.4 Heartbeat diagnosis and verification
with Bluetooth® wireless technology .36
7.2 LED module VU120 (optional) ............ 37
8 Commissioning .................... 37
8.1 Function check ....................... 37
8.2 Switching on the measuring device ......... 37
8.3 Establishing a connection via SmartBlue
(app) .............................. 37
8.3.1 Requirements .................. 37
8.3.2 Preparatory steps ............... 38
8.3.3 Establishing a connection via
SmartBlue (app) ................ 38
9 Operation ......................... 39
9.1 Diagnostics menu ..................... 39
9.1.1 "Diagnostics" menu ............... 39
9.1.2 "Application" menu .............. 39
9.1.3 "System" menu .................. 40
9.2 Heartbeat Verification .................. 41
9.3 Proof testing for SIL/WHG devices ......... 41
10 Diagnostics and troubleshooting ... 42
10.1 Diagnostic information via light emitting
diodes .............................. 42
10.1.1 LED at electronic insert ........... 42
10.1.2 SmartBlue ..................... 42

Table of contents Liquiphant FTL64
4 Endress+Hauser
11 Maintenance ...................... 43
11.1 Maintenance tasks .................... 43
11.1.1 Cleaning ...................... 43
12 Repair ............................ 43
12.1 General information ................... 43
12.1.1 Repair concept ................. 43
12.1.2 Repair of Ex-certified devices ....... 44
12.2 Spare parts .......................... 44
12.3 Return .............................. 44
12.4 Disposal ............................ 44
12.5 Battery disposal ....................... 44
13 Accessories ....................... 46
13.1 Test magnet ......................... 46
13.2 Weather protection cover for dual-
compartment housing, aluminum .......... 46
13.3 Protective cover for single compartment
housing, aluminum or 316L .............. 46
13.4 Plug-in jack .......................... 47
13.5 Bluetooth module VU121 (optional) ........ 47
13.6 LED module VU120 (optional) ............ 48
13.7 Sliding sleeves for unpressurized operation .. 48
13.8 High pressure sliding sleeves ............. 49
14 Technical data .................... 51
14.1 Input .............................. 51
14.1.1 Measured variable .............. 51
14.1.2 Measuring range ................ 51
14.2 Output ............................. 51
14.2.1 Output and input variants ......... 51
14.2.2 Output signal .................. 52
14.2.3 Ex connection data .............. 52
14.3 Environment ......................... 52
14.3.1 Ambient temperature range ....... 52
14.3.2 Storage temperature ............. 54
14.3.3 Humidity ..................... 54
14.3.4 Operating altitude ............... 54
14.3.5 Climate class .................. 54
14.3.6 Degree of protection ............. 54
14.3.7 Vibration resistance ............. 54
14.3.8 Shock resistance ................ 54
14.3.9 Mechanical load ................ 54
14.3.10 Electromagnetic compatibility ...... 54
14.4 Process ............................. 55
14.4.1 Process temperature range ........ 55
14.4.2 Thermal shock ................. 55
14.4.3 Process pressure range ........... 55
14.4.4 Test pressure .................. 56
14.4.5 State of aggregation ............. 56
14.4.6 Density ...................... 56
14.4.7 Viscosity ...................... 56
14.4.8 Pressure tightness .............. 56
14.4.9 Solids contents ................. 56
14.4.10 Lateral loading capacity .......... 56
14.5 Additional technical data ................ 57
Index .................................. 58

Liquiphant FTL64 About this document
Endress+Hauser 5
1 About this document
1.1 Symbols
1.1.1 Safety symbols
DANGER
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
WARNING
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
CAUTION
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
NOTICE
This symbol contains information on procedures and other facts which do not result in
personal injury.
1.1.2 Electrical symbols
Ground connection
Grounded clamp, which is grounded via a grounding system.
Protective earth (PE)
Ground terminals, which must be grounded prior to establishing any other connections.
The ground terminals are located on the inside and outside of the device.
1.1.3 Symbols for certain types of information
Permitted
Procedures, processes or actions that are permitted.
Forbidden
Procedures, processes or actions that are forbidden.
Tip
Indicates additional information
Reference to documentation
A
Reference to another section
1.
,
2.
,
3.
Series of steps
1.1.4 Symbols in graphics
A, B, C ... View
1, 2, 3 ... Item numbers
-
Hazardous area
.
Safe area (non-hazardous area)

Basic safety instructions Liquiphant FTL64
6 Endress+Hauser
1.1.5 Registered trademarks
The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth
SIG, Inc. and any use of such marks by Endress+Hauser is under license. Other trademarks
and trade names are those of their respective owners.
Apple®
Apple, the Apple logo, iPhone, and iPod touch are trademarks of Apple Inc., registered in
the U.S. and other countries. App Store is a service mark of Apple Inc.
Android®
Android, Google Play and the Google Play logo are trademarks of Google Inc.
2 Basic safety instructions
2.1 Requirements for the personnel
The personnel must fulfill the following requirements to carry out the necessary tasks,
e. g., commissioning and maintenance:
‣Trained, qualified specialists must have a relevant qualification for the specific function
and task
‣Are authorized by the plant owner/operator
‣Are familiar with federal/national regulations
‣Must have read and understood the instructions in the manual and supplementary
documentation
‣Follow instructions and comply with conditions
2.2 Designated use
• Only use the measuring device as a point level switch for liquids
• Improper use can pose hazards
• Ensure that the measuring device is free of defects while it is in operation
• Use the measuring device only for media to which the process-wetted materials have an
adequate level of resistance
• Do not exceed or drop below the limit values for the measuring device
 TI01540F/00/EN
2.2.1 Incorrect use
The manufacturer is not liable for damage caused by improper or non-designated use.
Residual risks
Due to heat transfer from the process, the temperature of the electronics housing and the
assemblies contained therein may rise to 80 °C (176 °F) during operation.
Danger of burns from contact with surfaces!
‣If necessary, ensure protection against contact to prevent burns.
For requirements concerning functional safety in accordance with IEC 61508, the
associated SIL documentation must be observed.

Liquiphant FTL64 Product description
Endress+Hauser 7
2.3 Workplace safety
For work on and with the device:
‣Wear the required protective equipment according to federal/national regulations.
2.4 Operational safety
Risk of injury!
‣Operate the device only if it is in proper technical condition, free from errors and faults.
‣The operator is responsible for ensuring failure-free operation of the device.
Modifications to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers.
‣If, despite this, modifications are required, consult with Endress+Hauser.
Repair
To ensure continued operational safety and reliability:
‣Only perform repair work on the device if this is expressly permitted.
‣Observe federal/national regulations pertaining to the repair of an electrical device.
‣Use original spare parts and accessories from Endress+Hauser only.
2.5 Product safety
This measuring device is designed in accordance with good engineering practice to meet
state-of-the-art safety requirements, has been tested, and left the factory in a condition in
which it is safe to operate.
It meets general safety standards and legal requirements. It also complies with the EU
directives listed in the device-specific EU Declaration of Conformity. Endress+Hauser
confirms this by affixing the CE mark to the device.
2.6 IT security
We only provide a warranty if the device is installed and used as described in the
Operating Instructions. The device has safety mechanisms integrated to prevent users
from inadvertently changing settings.
Provide additional protection for the device and data transfer to/from the device
‣IT security measures defined in the plant owner/operator's own security policy must be
implemented by plant owners/operators themselves.
3 Product description
• Point level switch for minimum or maximum detection
• Suitable for high-temperature applications up to 280 °C (536 °F)

Incoming acceptance and product identification Liquiphant FTL64
8 Endress+Hauser
3.1 Product design
1
5
4
2
3 3
A0042420
 1 Product design
1 Housing with electronic insert and cover, Bluetooth module or LED module are optional
2 Temperature spacer with gas-tight welded glass feedthrough → 2 lengths available depending on the process
temperature
3 Process connection (flange or thread)
4 Probe design with compact version
5 Probe design with pipe extension
Identify the electronic insert via the order code on the nameplate.
4 Incoming acceptance and product
identification
4.1 Incoming acceptance
Check the following during goods acceptance:
 Are the order codes on the delivery note and the product sticker identical?
 Are the goods undamaged?
 Do the nameplate data match the ordering information on the delivery note?
 If required (see nameplate): Are the Safety Instructions, e. g. XA, provided?
 Is the device properly secured?
If one of these conditions is not met, please contact the manufacturer's sales office.

Liquiphant FTL64 Incoming acceptance and product identification
Endress+Hauser 9
4.2 Product identification
The measuring device can be identified in the following ways:
• Nameplate data
• Extended order code with breakdown of the device features on the delivery note
• Enter serial number from nameplates in W@M Device Viewer
(www.endress.com/deviceviewer): All of the information on the measuring device is
displayed along with an overview of the scope of technical documentation provided.
• Enter the serial number on the nameplate into the Endress+Hauser Operations App or
use the Endress+Hauser Operations App to scan the 2-D matrix code (QR Code) on the
nameplate
4.2.1 Nameplate
Order code: Ser. no.:
Ext. ord. cd.:
L:
FW:
Dev.Rev.:
Pmax:
0.83 W PNP
4
55
7
6
7
1
2
3
8
A0038187
 2 Nameplate specifications
1 Trademark (Endress+Hauser)
2 Trade name (Device name)
3 Manufacturer's address (Certificate holder)
4 Production location (Assembly plant)
5 Order number, extended order code, serial number
6 Technical data, reference to technical documentation
7 Approval-specific information
8 DataMatrix code (information about the device)
4.2.2 Manufacturer address
Endress+Hauser SE+Co. KG
Hauptstraße 1
79689 Maulburg, Germany
Place of manufacture: See nameplate.
4.3 Storage and transport
4.3.1 Storage conditions
Use original packaging.
Storage temperature
–40 to +80 °C (–40 to +176 °F)
Optional: –50 °C (–58 °F), –60 °C (–76 °F)
4.3.2 Transporting the device
• Transport the device to the measuring point in the original packaging
• Hold the device by the housing, temperature spacer, flange or extension pipe
• Do not bend, shorten or extend the tuning fork

Installation Liquiphant FTL64
10 Endress+Hauser
A0042422
 3 Handling the device
5 Installation
LWARNING
Loss of protection rating if the device is opened in a wet environment.
‣Only open the device in a dry environment!
• Any orientation for device with short pipe up to approx. 500 mm (19.7 in)
• Vertical orientation for device with long pipe
• Minimum distance between the fork tip and the tank wall or pipe wall: 10 mm (0.39 in)
1
A0042329
 4 Installation examples in a vessel, pipe or tank
1 Temperature spacer with gas-tight welded glass feedthrough for tank with insulation and/or high process
temperatures
5.1 Installation conditions
5.1.1 Pay attention to temperature
Difference in temperature between outer and inner side of flange must not exceed
60 °C (140 °F).

Liquiphant FTL64 Installation
Endress+Hauser 11
If necessary, use external insulation.
A
B
BA
-
C
1
A0042298
 5 Difference in temperature between outer and inner side of flange
1 Insulation
A Temperature of flange, outer side
B Temperature of flange, inner side, for PFA (conductive) maximum 230 °C (446 °F)
C Difference in temperature for PFA (conductive) maximum 60 °C (140 °F)
5.1.2 Take switch point into consideration
The following are typical switch points, depending on the orientation of the point level
switch.
(Water +23 °C (+73 °F)).
Minimum distance between the fork tip and the tank wall or pipe wall:
10 mm (0.39 in)
~13 (0.5)
~5 (0.2)
~12.5 (0.49)
D
A B C
D
D
A0044069
 6 Typical switch points. Unit of measurement mm (in)
A Installation from above
B Installation from below
C Installation from the side
D Switch point
5.1.3 Take viscosity into consideration
Low viscosity
Low viscosity, e. g. water: < 2 000 mPa⋅s
It is permitted to position the tuning fork within the installation socket.

Installation Liquiphant FTL64
12 Endress+Hauser
> 25 (0.98)
D
A0042333
 7 Installation example for low-viscosity liquids. Unit of measurement mm (in)
D Diameter of installation socket: at least 50 mm (2.0 in)
High viscosity
NOTICE
Highly viscous liquids may cause switching delays.
‣Make sure that the liquid can run off the tuning fork easily.
‣Deburr the socket surface.
High viscosity, e. g. viscous oils: < 10 000 mPa⋅s
The tuning fork must be located outside the installation socket!
> 40 (1.57)
A0042335
 8 Installation example for a highly viscous liquid. Unit of measurement mm (in)
5.1.4 Avoid buildup
• Use short installation sockets to ensure that the turning fork can project freely into the
vessel.
• Install preferably flush mount on vessels or in pipes.
• Leave sufficient distance between the buildup expected on the tank wall and the tuning
fork.

Liquiphant FTL64 Installation
Endress+Hauser 13
A0042345
 9 Installation examples for a highly viscous process medium
5.1.5 Take clearance into consideration
Allow sufficient space outside the tank for mounting, connection and settings involving
the electronic insert.
A0042340
 10 Take clearance into consideration
5.1.6 Support the device
NOTICE
If the device is supported incorrectly, shocks and vibrations can damage the coated
surface.
‣Only use suitable supports.
Support the device in the event of severe dynamic load. Maximum lateral loading capacity
of the pipe extensions and sensors: 75 Nm (55 lbf ft).

Installation Liquiphant FTL64
14 Endress+Hauser
A0042356
 11 Examples of support in the event of dynamic load
5.2 Mounting the measuring device
5.2.1 Required tool
• Open-ended wrench for sensor installation
• Screwdriver for electrical connection
5.2.2 Installation
Align the tuning fork with the marking
Use the marking to align the tuning fork in such a way that medium can run off easily and
deposit buildup is avoided.
Markings may include the following:
• Material specification, thread description or circle on the hexagonal nut or on the weld-
in adapter
• II symbol on the back of the flange
316L/G1
A0042348
 12 Marking to align the tuning fork
Installing in pipes
• Flow velocities up to 5 m/s at a viscosity of 1 mm2/s(cSt) and density 1 g/cm3 (SGU)
Check for correct functioning in the event of other process medium conditions
• The flow will not be significantly impeded if the tuning fork is correctly aligned and the
marking is pointing in the direction of flow
• The marking can be identified while the device is installed

Liquiphant FTL64 Installation
Endress+Hauser 15
A0034851
 13 Marking and fork position
Screwing in the device
• Turn by the hex bolt only, 15 to 30 Nm (11 to 22 lbf ft)
• Do not turn at the housing!
A0042423
 14 Screwing in the device
Aligning the cable entry
1.
2.
3.
40.7 Nm
A0042355
 15 Housing with external locking screw
The locking screw is not tightened when the device is delivered.
1. Loosen the external locking screw (maximum 1.5 turns).
2. Turn the housing, align the cable entry.
 Avoid moisture in the housing, provide a loop to allow moisture to drain off.
3. Tighten the external locking screw.
5.3 Sliding sleeves
See the Operating Instructions

Electrical connection Liquiphant FTL64
16 Endress+Hauser
5.4 Post-installation check
 Is the measuring device undamaged (visual inspection)?
 Does the measuring device conform to the measuring point specifications?
For example:
• Process temperature
• Process pressure
• Ambient temperature range
• Measuring range
 Are the measuring point number and labeling correct (visual inspection)?
Is the measuring device adequately protected against precipitation and direct sunlight?
 Is the device properly secured?
6 Electrical connection
6.1 Connection conditions
6.1.1 Cover with securing screw
In the case of devices for use in the hazardous area, the cover is sealed by a securing screw.
NOTICE
If the securing screw is not positioned correctly when the cover is screwed closed, the
cover cannot provide secure sealing.
‣Before unscrewing the cover, make sure that the securing screw does not protrude too
far over the edge of the cover. Loosen the securing screw with a maximum of 2 turns.
‣Pay attention to the position of the securing screw when screwing the cover closed.
2 x
A0039520
 16 Cover with securing screw
6.1.2 Connecting protective earth (PE)
The protective earth conductor at the device must only be connected if the device's
operating voltage is ≥ 35 VDC or ≥ 16 VACeff.
When the device is used in hazardous areas, it must always be included in the potential
equalization of the system, irrespective of the operating voltage.
The plastic housing is available with or without an external protective earth
connection (PE). If the operating voltage of the electronic insert is < 35 V, the plastic
housing has no external protective earth connection.

Liquiphant FTL64 Electrical connection
Endress+Hauser 17
6.2 Connecting the measuring device
6.2.1 2-wire AC (electronic insert FEL61)
• Two-wire AC version
• Switches the load directly into the power supply circuit via an electronic switch; always
connect in series with a load
• Functional testing without level change
A functional test can be performed on the device using the test button on the electronic
insert.
Supply voltage
U = 19 to 253 VAC, 50 Hz/60 Hz
Residual voltage when switched through: typically 12 V
Observe the following as per IEC/EN61010-1: Provide a suitable circuit breaker for
the device, and limit the current to 1 A, e. g. by installing a 1 A fuse (slow-blow) in the
phase (not the neutral conductor) of the supply circuit.
Power consumption
S ≤ 2 VA
Current consumption
Residual current when blocked: I ≤ 3.8 mA
The red LED flashes in the event of an overload or short-circuit. Check for an overload or
short-circuit every 5 s. The test is deactivated after 60 s.
Connectable load
• Load with a minimum holding power/rated power of 2.5 VA at 253 V (10 mA) or
0.5 VA at 24 V (20 mA)
• Load with a maximum holding power/rated power of 89 VA at 253 V (350 mA) or
8.4 VA at 24 V (350 mA)
• With overload and short-circuit protection
Behavior of output signal
• OK status: load on (switched through)
• Demand mode: load off (blocked)
• Alarm: load off (blocked)
Terminal assignment
Always connect an external load. The electronic insert has integrated short-circuit
protection.

Electrical connection Liquiphant FTL64
18 Endress+Hauser
!
>0,5
COM
NL1
1
2
MIN
MAX >0,7
U 19...253 V AC
I max: 350 mA
~
~
1 A
L1 NPE
K
1 2
A0036060
 17 2-wire AC, electronic insert FEL61
Behavior of switch output and signaling
MAX
RD YE GN
MIN
K
K
K
K
K
(N)
(N)
(N)
(N)
(N)
IL
IL
<3.8 mA
<3.8 mA
<3.8 mA
2
2
2
2
2
1
1
1
1
1
L1
L1
L1
L1
L1
ΔU
ΔU
A0031901
 18 Behavior of switch output and signaling, electronic insert FEL61
MAXDIP switch for setting MAX safety mode
MIN DIP switch for setting MIN safety mode
RD LED red for warning or alarm
YE LED yellow, switch status
GN LED green, operational status, device on
ILLoad current switched through

Liquiphant FTL64 Electrical connection
Endress+Hauser 19
Selection tool for relays
3.0
1.5
1.3
20 24 27 43 48 53 60 110 121 207 230 253
S
U
P1
A0042052
 19 Recommended minimum holding power/rated power for load
S Holding power/rated power in [VA]
U Operating voltage in [V]
AC mode
• Operating voltage: 24 V, 50 Hz/60 Hz
• Holding power/rated power: > 0.5 VA, < 8.4 VA
• Operating voltage: 110 V, 50 Hz/60 Hz
• Holding power/rated power: > 1.1 VA, < 38.5 VA
• Operating voltage: 230 V, 50 Hz/60 Hz
• Holding power/rated power: > 2.3 VA, < 80.5 VA
6.2.2 3-wire DC-PNP (electronic insert FEL62)
• Three-wire DC version
• Preferably in conjunction with programmable logic controllers (PLC), DI modules as per
EN 61131-2. Positive signal at switch output of electronics module (PNP)
• Functional testing without level change
A functional test can be performed on the device using the test button on the electronic
insert or using the test magnet (can be ordered as an option) with the housing closed.
Supply voltage
LWARNING
Failure to use the prescribed power unit.
Risk of potentially life-threatening electric shock!
‣The FEL62 may only be powered by devices with safe galvanic isolation, as per
IEC 61010-1.
U = 10 to 55 VDC
Observe the following as per IEC/EN61010-1: Provide a suitable circuit breaker for
the device, and limit the current to 500 mA, e. g. by installing a 0.5 A fuse (slow-
blow) in the supply circuit.

Electrical connection Liquiphant FTL64
20 Endress+Hauser
Power consumption
P ≤ 0.5 W
Current consumption
I ≤ 10 mA (without load)
The red LED flashes in the event of an overload or short-circuit.
Load current
I ≤ 350 mA with overload and short-circuit protection
Capacitance load
C ≤ 0.5 µF at 55 V, C ≤ 1.0 µF at 24 V
Residual current
I < 100 µA (for blocked transistor)
Residual voltage
U < 3 V (for switched through transistor)
Behavior of output signal
• OK status: switched through
• Demand mode: blocked
• Alarm: blocked
Terminal assignment
!
U = 10...55 V DC
I max: 350 mA
1
3
L-L+
COM
MIN
MAX >0,7
>0,5
1
3
0.5 A
L+ L-
I 350 mA
U 55 V
max
max
K
K
IL
PE
4
3
1
2
1
3
4
M12
1 2 3
B
A
L+ L-
K
A0036061
 20 3-wire DC-PNP, electronic insert FEL62
A Connection wiring with terminals
B Connection wiring with M12 plug in housing as per EN61131-2 standard