Technical information
This guide describes operation of the 
PROLEC PME LIFTING AND MACHINE ENVELOPE SAFETY SYSTEM FOR 
CONSTRUCTION PLANT 
 Model covered :  PART No.     MODEL Ref       
        PMERail Ultra    PMERail Ultra - RCC / MEC SYSTEM 
PMERail Ultra RCI system has been designed for compliance with RIS-1530-PLT 
Issue 4 and NR MDL/004 ISSUE 2 
IMPORTANT : Before use, check the Engineering Acceptance certification and ma-
chine documentation to confirm if the Rated Capacity Controller, Adjacent Line 
Open and Overhead Line Equipment limitations that may exist within the use of the 
machine and / or the PMERail Ultra system.     
Prolec supports a nationwide dealer network. Warranty claims, service work, technical 
information and spare parts are available by contacting : 
     Prolec Ltd         Telephone  +44 (0) 1202 681190  
     25 Benson Road      Fax    +44 (0) 1202 67790 
     Nuffield Industrial Estate    E-mail    service@prolec.co.uk 
     Poole Dorset BH17 0GB   
DURING NORMAL OPERATION THE SAFE WORKING LOAD OF A CRANE SHOULD 
NOT BE EXCEEDED. THEREFORE THE WARNING OF OVERLOAD SHOULD NOT 
BE USED AS A NORMAL OPERATING FACILITY. IT SHOULD BE NOTED THAT 
CERTAIN STATUTORY REQUIREMENTS DO NOT PERMIT THE SAFE WORKING 
LOAD TO BE EXCEEDED EXCEPT FOR THE PURPOSE OF TESTING. 
THIS RATED CAPACITY CONTROLLER (RCC) IS NOT SUITABLE FOR USE IN 
EXPLOSIVE ATMOSPHERES. ADJUSTMENT BY UNAUTHORISED PERSONS WILL 
INVALIDATE ANY WARRANTY OR CERTIFICATION SUPPLIED. IF A PROBLEM 
ARISES WHICH CANNOT BE RECTIFIED USING THIS GUIDE, AUTHORISED 
SERVICE SHOULD BE SOUGHT. 
THIS DEVICE IS CERTIFIED TO MEET CURRENT UK & EC SAFETY REGULATIONS 
FOR LIFTING OPERATIONS. 
Any alterations or modifications to machine components which affect this system and any 
system component failure must be reported to Prolec Ltd or via the machine convertor/
service agreement holder. This manual must be kept with the product and be passed on 
to any subsequent user of the product. 
Whilst every effort has been made to ensure the accuracy of the information supplied in 
this manual, Prolec Ltd cannot be held responsible for any errors or omissions. 
Manufacturers original instructions. 










