22 
NT579-NT579 RS485  
TECSYSTEM SHANGHAI 
23) RULES FOR WARRANTY  
 
The  Product  purchased  is  covered  by  manufacturer's  warranty  or  the 
seller's  terms  and  conditions  set  forth  in  the  "General  Conditions  of  Sale 
Tecsystem SHANGHAI", available at www.tecsystem.asia and / or purchase 
agreement.  
The warranty is considered valid only when the product will be damaged by 
causes attributable to TECSYSTEM SHANGHAI, such as manufacturing or 
components defects.  
The warranty is invalid if the Product proves tampered / modified, incorrectly 
connected,  because  voltages  outside  the  limits,  non-compliance  with  the 
technical  data  for  use  and  assembly,  as  described  in  this  instruction 
manual.  
Any action about warranty is always at our factory in SHANGHAI JIADING, 
CHINA as stated by the  
" General Conditions of Sale Tecsystem SHANGHAI ".  
 
 
 
 
 
 
 
RAEE:  This  SYMBOL,  shown  on  the  unit,  indicates  that  the 
waste  must  be  subject  to  "separate  collection”.  The  end-user  must 
send  the  unit  to  the  “waste  collection  centers”,  or  return  the  unit  to 
the dealer against the purchase of a new equivalent device.