IT6900 User Manual 
  Copyright ©ITECH Electronic Co., Ltd.  iii 
 
 
  If the equipment is not used in the manner specified by the manufacturer, 
its protection may be damaged. 
  Always use dry cloth to clean the equipment housing. Do not clean the 
inside of the instrument. 
  Do not block the air vent of the equipment. 
 
Environmental Conditions 
The IT6900 series power supply can only be used indoors or in low 
condensation areas. The following table shows general environmental 
requirements for this instrument. 
20% - 80% (non condensing) 
Operating up to 2,000 meters 
Ⅱ 
 
Note 
To make accurate measurements, allow the instrument to warm up for 30 min before 
operation. 
Regulation Tag 
 
The CE tag shows that the product complies with the 
provisions of all  relevant 
European laws (if the year is 
shown, it indicates that the year when the design is 
approved). 
 
The UKCA tag shows that the product complies with the 
provisions of all relevant United Kingdom laws (if the year 
is shown, it indicates that the year when the 
approved).