EC9830 CO ANALYZER OPERATION MANUAL 
2-8  98307600 Rev. C-1 
Warning 
Power  is  supplied  to  the  analyzer  through  a 
three-pin  power  plug.  The  ground  must  not  be 
defeated  and  an  adequate  ground  must  be 
connected  to  the  instrument,  both  for  proper 
performance  and  for  the  safety  of  operating 
personnel. The warranty on the analyzer applies 
only if the analyzer is properly grounded. If it is 
not  properly  grounded  and  electric  power  is 
applied  in  violation  of  the  National  Electric 
Code, ECOTECH assumes no responsibility for 
any injury to personnel or damage to property. 
Warning 
Be sure to check that the mains power selection 
switch is at the correct setting before turning the 
instrument  on.  Failure  to  do  so  may  result  in 
damage to the power supply. 
Connect the power plug to the power receptacle and press the power switch to the 
ON position on the rear panel. Also make sure that the DC POWER switch on the 
front secondary panel is switched to ON. 
2.2.1 Display Adjustments 
Adjust the display contrast and backlight intensity by simultaneously pressing two 
keys on the front panel (see Figure 2-4): 
 
Figure 2-4. Analyzer Front Panel 
  Contrast 
Up  arrow  ()  and  <Select>  for  darker  contrast,  Down  arrow  ()  and 
<Select> for lighter contrast.