IT7900P User Manual 
  Copyright ©ITECH Electronic Co., Ltd.  iii 
disconnection of the protective earth terminal will cause a potential 
shock hazard that could result in injury or death. 
⚫  Before applying power, verify that all safety precautions are taken. 
All connections must be made with the instrument turned off, and 
must be performed by qualified personnel who are aware of the 
hazards involved. Improper actions can cause fatal injury as well as 
equipment damage. 
⚫  SHOCK HAZARD, LETHAL VOLTAGES This product can input the 
dangerous voltage that can cause personal injury, and the operator 
must always be protected from electric shock. Ensure that the input 
electrodes are either insulated or covered using the safety covers 
provided, so that no accidental contact with lethal voltages can 
occur. 
⚫  Never touch cables or connections immediately after turning off the 
instrument. Verify that there is no dangerous voltage on the 
electrodes or sense terminals before touching them. 
 
 
⚫  Failure to use the instrument as directed by the manufacturer may 
render its protective features void. 
⚫  Always clean the casing with a dry cloth. Do not clean the internals. 
⚫  Make sure the vent hole is always unblocked. 
Environmental Conditions 
The instrument is designed for indoor use and an area with low condensation. 
The  table  below  shows  the  general  environmental  requirements  for  the 
instrument. 
The  CE  mark  indicates  that  the 
product complies with all the relevant 
European legal directives. The specific 
year ( if any) affixed refers to the year 
when the design was approved.