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Installation, Operating and Maintenance  

 

 

5/8 

Instructions for Jola external-mounting limit switches 
RK 1/K/…/Variant ./Ex-..   

 

 

 

21.04.2018

 

 

3. 

Additional conditions for safe operation 
 
 
 
 
 
 
 
Before installing the external-

mounting limit switch RK 1/K/…/Variant ./Ex-.. you 

must ensure that the materials used are sufficiently chemically and mechanically 
resistant to all external influences.

 

 
In case of doubt, consult a suitably trained expert prior to use. Do not use the product 
before these questions have been fully clarified. 
 

 

4. 

Installation, connection, start-up and maintenance, general regulations  
 
Installation, connection, start-up and maintenance of the external-mounting limit 
switch RK 1/K/…/Variant ./Ex-..  may only be performed by suitably qualified 
specialist personnel in line with all the information material and documentation 
supplied with the the external-mounting limit switch and following all 
instructions contained therein. 
 
The qualified specialist personnel must ensure that they are familiar with all 
valid standards, regulations, local requirements and specific conditions, in 
particular the standards, regulations, local requirements and specific conditions 
relating to explosion protection 

– and must proceed accordingly.

 

 

The entire installation set-up of the external-mounting limit switches  
RK 1/K/…/Variant ./Ex-.. and of their mounting accessories must always comply 
with the standard IEC/EN 60 079-14 resp. the replacing standard. 
 

You must always read 

– and adhere to the instructions outlined in - the yellow  

DIN A 5 leaflet "User information/Instructions for use with mounting, operating and 
maintenance instructions for the product...". If the leaflet is not supplied with the 
product or is lost, you must always request a replacement leaflet from Jola. 

 
 
 
 
 
 
 
 
 
 
 

When the external-mounting limit switch 

RK 1/K/…/Variant ./Ex-..  

is equipped with an antistatic connection cable, 
the antistatic cable has, under any circumstances,  
to be not longer than 30 m. 

Summary of Contents for RK 1/K Variant Ex Series

Page 1: ...These Installation Operating and Maintenance Instructions must always be handed over to the fitter operator service personnel of our products together with all other user documentation and informatio...

Page 2: ...ia IIC T6 Ga or II 2 G Ex ia IIC T6 Gb Tamb 20 C to 60 C INERIS 12ATEX0059 are binary contact devices for use in underground areas in mines as well as in above ground areas of mines which could be at...

Page 3: ...hole situated in the middle of the body of the switch Through this hole the limit switch has to be mounted on a horizontal shaft of the customer s device which permits a rotation of max 180 The rotat...

Page 4: ...or the external mounting limit switches RK 1 K Variant Ex Sensor type Type designation Li Ci Each external mounting limit switch RK 1 K Variant Ex 1 H per meter connecting cable 200 pF per meter conne...

Page 5: ...itch and following all instructions contained therein The qualified specialist personnel must ensure that they are familiar with all valid standards regulations local requirements and specific conditi...

Page 6: ...mits a rotation of max 180 The rotation of the shaft causes the switching In order to prevent an incorrect functioning of the limit switch and a cable break a sufficient cable length must be left Afte...

Page 7: ...em and not to a potential earth 7 Start up Prior to start up you must re check the mounting position the mechanical fastening and the electrical connection In particular you must check once again that...

Page 8: ...witch is installed as a safety element within a system it must always be inspected and checked at intervals to be agreed with the local supervisory authorities Prior to all maintenance work the qualif...

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