Eurotec EV K2D Series User manual

BA_X018
Operating instructions
EUROTEC Antriebszubehör GmbH | Bildstock 37 | DE-88085 Langenargen | [email protected] | www.eurotec.global | 20.11.2020 | Page 1 of 6
Product group: Limit switch box wave Product type: EV...-K2D / EA...-K2D EN
Certifications:
EVP-K2D EVE-K2D EAE-K2D
Table of Contents
1. Device description.................................................................................................................................................................................................2
2. Intended use ......................................................................................................................................................................................................... 2
3. Labeling................................................................................................................................................................................................................. 2
4. Special Conditions ................................................................................................................................................................................................ 3
5. Safe activation.......................................................................................................................................................................................................3
6. Assembly on actuators ......................................................................................................................................................................................... 3
7. Assembly on manual valves ................................................................................................................................................................................. 3
8. Electrical connection ............................................................................................................................................................................................ 3
9. Disassembly..........................................................................................................................................................................................................4
10. Adjusting the swivel range.................................................................................................................................................................................. 4
11. Connecting solenoid coils................................................................................................................................................................................... 5
12. Outdoor use.........................................................................................................................................................................................................5
13. Maintenance........................................................................................................................................................................................................ 5
14. Malfunctions........................................................................................................................................................................................................ 5
15. Item number ....................................................................................................................................................................................................... 5
16. EU Declaration of Conformity ............................................................................................................................................................................. 6

BA_X018
Operating instructions
EUROTEC Antriebszubehör GmbH | Bildstock 37 | DE-88085 Langenargen | [email protected] | www.eurotec.global | 20.11.2020 | Page 2 of 6
Thank you for choosing a EUROTEC product. In doing so, you have chosen a quality product. To ensure functionality and your own safety,
please read these operating instructions carefully before beginning with the installation. Nevertheless, should you have any further
questions, please contact:
EUROTEC Antriebszubehör GmbH | Tel. [phone] - 0 | Fax. - 10 | [email protected]bal | www.eurotec.global
1. Device description
Limit switch boxes serve to provide feedback and control the position of industrial valves, which are activated using pneumatic actuators. The
shaft of the limit switch box has a positive connection with the shaft of the actuator and is rotated with the rotational movement of the actuator.
The actuating cams attached to the shaft, activate the installed sensors, which support the electronic signal transmission.
The wave Ex t limit switch boxes of the types EV and EA are, depending on the model, equipped with 1 to 4 proximity switches. Which contain
1-4 V3 proximity switches, 1-3 slot type sensors, 1-2 cylindrical sensors, 1 dual sensor. The dust ignition protection comes from the switch
box housing.
2. Intended use
The wave Ex t limit switch boxes from the EUROTEC Antriebszubehör GmbH are intended for use in the explosive area of zone 21 and 22
with combustible dust.
ATEX / IECEx EAC Ex (TR-CU-012)
II 2D Ex tb IIIC T80°C Db
II 3D Ex tc IIIC T80°C Dc
Ex t IIIC T80°C Db X
IBExU 12 ATEX 1022 X / IECEX IBE 13.0041X
It’s approved for use in the following ambient temperature ranges:
Vestamid: -20°C...+40°C
Aluminium: -55°C/-20°C...+60°C
The approved ambient temperature varies, depending on the sealing compound and the installed switch type. You can find the ambient
temperature in the corresponding data sheet and on the product label. A lower temperature range down to -55°C applies to limit switch
boxes, which are made of components that are at least suitable for this temperature.
Rated voltage: U
N = ≤ 90V oder 90V ≤ Ue ≤ 250V
Rated current: I
N = max. 4A
Max. power dissipation: P
max = 2,5W
A further shaft feed-through in the cover may additionally be provided, which is constructed structurally the same. This makes it possible to
create an additional interface according to VDI/VDE 3845, which enables the assembly of further components on top of the cover (-WD).
3. Labeling
The labeling on the housing is shown in Fig. 1 and varies depending on the installed switch type. You can find the number of the indicated
responsible office for the QM system and the serial number below the CE mark. It consists of the year of manufacture and the respective
order number.
Fig. 1: Labeling
The housings are not intended to be used as stepladders, to climb into the system. This can lead to damaging
them and having a negative effect on their function. If the housing is damaged, water as well as dirt and
combustible material can accumulate inside the housing. This can lead to a short circuit. Furthermore, the
device can heat up severely due to the accumulation and can cause an explosion.

BA_X018
Operating instructions
EUROTEC Antriebszubehör GmbH | Bildstock 37 | DE-88085 Langenargen | [email protected] | www.eurotec.global | 20.11.2020 | Page 3 of 6
4. Special Conditions
The Vestamid housings are tested with reduced impact energy and must be protected from mechanical damage.
5. Safe activation
To avoid mistakes, only specialists are permitted to set up, connect and put the devices into operation. The specialists must have expertise
in dust ignition protection by enclosure (Ex t) as well as in all relevant regulations and provisions for operating materials in explosive areas.
The limit switch boxes are developed in compliance with the following harmonised standards:
EN 60079-0:2012+A11.2013 (IEC 60079-0, Ed. 6)
EN 60079-31:2014 (IEC 60079-31, Ed. 2)
It is imperative to observe the following safety instructions prior to initial operation:
Failure to observe the safety instructions in these operating instructions and using or handling the device
improperly, releases us from any liability.
Furthermore, the warranty for the devices and accessory components will expire.
Check on the labeling, whether or not the existing device is suitable for your case of application.
Observe national regulations and provisions as well as the corresponding installation specifications.
Take suitable measures, to prevent unintentional activation or improper interferences with the device.
Remove any existing sealing plugs just before inserting the wires to avoid dirt in the housing.
Make sure the strain is sufficiently relieved on the connecting cables or lay them securely.
Check the approved conductor cross-sections as well as the approved tightening torques in the documentation for cable connections
Effectively protect the devices and cables against damages.
Avoid static charge on the cables. Clean the unit with anti-static or moistened cloth.
Housing components made of metal must be included in the potential equalisation by means of appropriate assembly.
This device may only be operated in a fully assembled condition.
Never disconnect the connector cables while they have power.
6. Assembly on actuators
Using the enclosed mounting material, the modules can be quickly and easily assembled to the provided actuator according to VDI (Association
of German Engineers)/VDE (German Electrical Engineering Association) 3845.
1. Adjust your actuator to the final position, in which the groove of the actuator shaft is parallel to the actuator housing.
2. Now, place the box with the appropriate mounting bracket on the actuator.
3. The mounting bracket can now be screwed tightly onto the actuator using the provided lock screws (4 pcs.).
4. Unscrew the four cover screws and open the housing. Make sure you do not unscrew the screws too far; they should remain in the
cover.
5. Insert the system cable into the housing through the cable gland and connect the individual wires to the terminal block. When doing so,
please refer to the terminal diagram on the respective data sheet or on the cover of the housing and connect the housing to the
equipotential bonding.
6. Close the housing using the cover. When attaching the cover, please make sure that the seal is correctly positioned and tighten the
cover screws.
7. Assembly on manual valves
The boxes with an F05-connection on the bottom of the housing, can also be assembled on manually operated valves using our assembly kit
“MSH”. It is important that your manual valve has a head flange according to ISO 5211 and a threaded hole in the shaft. Please use the
“MSH” instruction manual for detailed assembly instructions.
8. Electrical connection
You can find the approved cable diameter in the corresponding data sheet for the limit switch box. You can find the terminal diagram for the
wiring either on or in the cover of the housing as well as on the corresponding data sheet for the limit switch box.
As an alternative to the cable gland, suitable and separately certified connecting elements may be used, such as M12 plugs or connectors.
These connectors shall be electrically or mechanically interlocked or otherwise designed in such a way that they cannot be disconnected
while live and that contacts cannot be energized when disconnected. Alternatively, the contacts can be held together with the aid of special
fasteners in accordance with EN60079-0 section 9.2 if they are marked with an indication in accordance with EN 60079-0 section 29.12.
Furthermore, separately certified thread adapters may be used (e. g. NPT1/2)
When tightening the cable gland, please make sure that the base body of the cable gland, which is screwed in
place in the housing, does not rotate as well. This could make the sealing washer shift and it would then no
longer provide proper sealing. It is best to use 2 open-ended spanners for this purpose. One to secure the
base body of the cable gland and one to tighten the screw nut.

BA_X018
Operating instructions
EUROTEC Antriebszubehör GmbH | Bildstock 37 | DE-88085 Langenargen | [email protected] | www.eurotec.global | 20.11.2020 | Page 4 of 6
Standard terminals:
Terminal Producer Wire cross –section Thihtening torque Stripping length Colour
AK100... PTR Single-wire fixed: 0,2 - 4,0 mm2
Fine-wire fixed.: 0,2 - 2,5 mm2
With end ferrule: 0,2 - 2,5 mm2
0,45 - 0,50 Nm 7 mm black
Standard cable glands:
Cable gland Manufacturer Certificate Size Cable diameter Material Colour
ESKE... WISK
A
PTB 13 ATEX 1015 X M20x1,5 red. 4 - 13 mm PA6 black
ESKE... WISK
A
PTB 13 ATEX 1015 X M20x1,5 7 - 13 mm PA6 black
GHG... CEAG PTB 99 ATEX 3128 X M25x1,5 8,0 - 17 mm PA6 black
If you have installed another Ex e terminal in the housing, then please find the connection data in the corresponding data sheet and the
corresponding type examination certificate for the cable gland.
9. Disassembly
During dismantling you must observe the instructions in Chapter 5.
1. Disconnect the device from the power supply.
2. Open the cover of the housing by unscrewing the 4 cover screws. Make sure that you do not unscrew the screws too far; they should
remain in the cover and not be able to fall out.
3. Disconnect the cables in the system from the terminal strip in the limit switch box.
4. Now, unscrew the 4 screws with which the bracket of the box is attached to the actuator and remove the limit switch box from the actuator.
10. Adjusting the swivel range
The actuators are always preset to a swivel range of 0-90° by the EUROTEC Antriebszubehör GmbH. Should you require a different swivel
range for your application, please carry out the following steps:
1. Rectangular V3 limit switches and slot type sensors
a. Bring the actuator in the desired end position 1. Adjust the lower cam first. Press the cam down and turn it into the position in which it
actuates the switch. Now let the cam engage again with the gearing. (Fig. 2)
b. Bring the actuator in the desired end position 2. Press the upper cam down and turn it into the position in which it actuates the switch.
Now let the cam engage again with the gearing.
c. Finally verify your presetting through repeated switching of the actuator.
Fig. 2: Setting of cams Fig. 3: Slot type cams
2. Cylindrical limit switches
a. Loosen the M6 nut screw and remove the upper cam. (Fig. 4)
b. Unfasten the threaded rod, bring the actuator in the desired end position 1, and adjust the lower cam. Then tighten the threaded
rod again firmly. (Fig. 5)
c. Bring the actuator in the desired end position 2, adjust the upper cam and tighten it again by means of the nut screw. (Fig. 6)
d. Finally verify your presetting through repeated switching of the actuator.
Fig. 4: Loosen nut screw Fig. 5: Fixation of cam 1 Fig. 6: Fixation of cam 2

BA_X018
Operating instructions
EUROTEC Antriebszubehör GmbH | Bildstock 37 | DE-88085 Langenargen | [email protected] | www.eurotec.global | 20.11.2020 | Page 5 of 6
Danger of injury. During the switching process of the actuator you might squeeze body parts bet-
ween switch and cam. Stay far enough away from the source of danger when switching the actuator.
Attention, the switch can be damaged by the cams in the event of a wrong presetting. Take care that
the cam does not hit the switch when switching the actuator.
11. Connecting solenoid coils
Depending on the model, the wave Ex t limit switch boxes of EUROTEC provide the possibility to connect one or two solenoid coils Ex m,
Ex dm or Ex d inside the housing. The suitable switch boxes for one coil are marked with an additional '-MA' in their part number. This
version has a cable with a length of 500mm that is connected to the terminal block inside the housing and lead outside the housing through
a cable gland. The leads of this cable have to be wired to the plug connector of the solenoid coil. Please consider the coil manufacturer’s
operation manual and the circuit diagram on or inside the limit switch box cover or on the according technical data sheet. The same applies
to the connection of two solenoid coils. This version is marked with an additional '-2MA' in its part number and provides two cables with a
length of 500mm each. With the models “-2KV” and “-2NPT1/2” the solenoid valve connection Ex m, Ex dm or Ex d is optional on poles 7-9.
Fig. 10: -MA Fig. 11: -2MA Fig. 12 -2KV Fig. 13: -2NPT1/2
12. Outdoor use
If you would like to use the limit switch boxes outdoors (outdoor installation), the limit switch boxes should be equipped with an Ex e
pressure compensating element. The pressure compensating element prevents water condensation in the housing in the event of outdoor
temperature fluctuations. Please check whether or not there is a pressure compensating element. If not, you have to order respective limit
switch boxes. In this case, the addition to the item number is “-DAE”.
13. Maintenance
The limit switch boxes for ATEX areas may never be opened during operation or in an existing explosive atmosphere. Opening them can
cause an explosion. Therefore, maintenance work is only possible outside of the Ex area.
With the long-term outdoor use of the switch boxes and with extremely high or low ambient temperatures, the sealings inside of the cover
and on the shaft can become porous. A safe use can only be guaranteed with a leak-proof housing. Sealings need to be replaced as soon as
they are worn out. The cover screws can loosen in the event of strong vibrations or temperature fluctuations. Retighten the screws every
two years. Any other modifications to the device are prohibited!
14. Malfunctions
In the event of malfunctions, please check the lines, line connectors and the position of the cams. Furthermore, please check whether
condensation water has accumulated in the housing and whether the valve and the actuator are functioning properly. Rectify any possible
errors. If this does not rectify the malfunction, disconnect the housing from the power supply voltage and contact one of the manufacturer’s
authorised and trained specialists.
15. Item number
Please refer to the related order code of the switch box series wave EV/EA.

BA_X018
Operating instructions
EUROTEC Antriebszubehör GmbH | Bildstock 37 | DE-88085 Langenargen | [email protected] | www.eurotec.global | 20.11.2020 | Page 6 of 6
16. EU Declaration of Conformity
EU-Declaration of Conformity
according to the Directive 2014/34/EU (ATEX-Directive)
We herewith confirm that the following named equipment for the use in hazardous areas does fulfill the requirements of the Directive
2014/34/EU in the delivered execution:
EV... K2D... wave limit switch box. Housing Vestamid
EA... K2D... wave limit switch box. Housing Aluminum
EV…K2D...-3D... wave limit switch box. Housing Vestamid with Polycarbonate cover (IIB)
The equipment has been developed and designed in consideration of the following harmonised standards:
EN 60079-0:2012+A11:2013 Explosive atmospheres -
IEC 60079-0, Ed. 6.0 Part 0: Equipment - General requirements
EN 60079-31:2014 Explosive atmospheres -
IEC 60079-31, Ed. 2 Part 31: Equipment dust ignition protection by enclosure "t"
Marking: II 2D Ex tb IIIC T80°C Db
II 3D Ex tc IIIC T80°C Dc
EU-Type Examination Certificate: IBExU 12 ATEX 1022 X
IBExU Institut für Sicherheitstechnik GmbH
Fuchsmühlenweg 7, 09599 Freiberg,
Ident.-No.: 0637
EU-Certificate Quality Assurance: EPS 19 ATEX Q 057
Bureau Veritas Consumer Products Services Germany GmbH
Businesspark A96, DE-86842 Türkheim
Ident.-No.: 2004
2020-01-23
Date General Manager: Melissa Berge