IT6900 Programming Guide 
  Copyright ©ITECH Electronic Co., Ltd.  i 
Certification and Quality Assurance 
IT6900 series power supply completely reaches nominal technical indicators in 
the manual. 
Warranty Service 
ITECH Company will provide one-year warranty services for the product 
materials and manufacturing (excluding the following limitations). 
  When warranty service or repair is needed, please send the product to the 
service unit specified by ITECH Company. 
  When the product is sent to ITECH Company for warranty service, the 
customer must pay the one-way freight to the maintenance department of 
ITECH, and ITECH will be responsible for return freight. 
  If the product is sent to ITECH for warranty service from other countries, 
the customer will be responsible for all the freight, duties and other taxes. 
Limitation of Warranty 
This Warranty will be rendered invalid in case of the following: 
  Damage caused by circuit installed by customer or using customer own 
products or accessories; 
  Product which has been modified or repaired by the customer; 
  Damage caused by circuit installed by customer or not operating our 
products under designated environment; 
  The product model or serial number is altered, deleted, removed or made 
illegible by customer; 
  Damage caused by accidents, including but not limited to lightning, water, 
fire, abuse or negligence. 
Safety Signs 
 
 
 
 
Alternating current
 
 
OFF (power off) 
 
Both direct and alternating 
current 
 
 
Protective conductor terminal
 
 
Power-off state 
 
Earth (ground) terminal
 
 
Reference terminal
 
 
Caution, risk of electric shock 
 
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