User Manual
viii 
This instrument contains one or more cooling fans. For continued safe operation of the 
instrument, the air inlet and exhaust openings for these fans must not be blocked nor must 
accumulated dust or other debris be allowed to reduce air flow. Maintain at least 25 mm 
clearance around the sides of the instrument that contain air inlet and exhaust ports. If 
mounted in a rack, position power devices in the rack above the instrument to minimize 
instrument heating while rack mounted. Do not continue to operate the instrument if you 
cannot verify the fan is operating (note some fans may have intermittent duty cycles). Do not 
insert any object into the fan's inlet or outlet. 
For continued safe use of the instrument 
  Do not place heavy objects on the instrument. 
  Do not obstruct cooling air flow to the instrument. 
  Do not place a hot soldering iron on the instrument. 
  Do not pull the instrument with the power cord, connected probe, or connected test 
lead. 
  Do not move the instrument when a probe is connected to a circuit being tested. 










