Page 10 
Location 
All electronic products are susceptible to electrostatic 
shock, so follow proper grounding procedures during 
installation. 
 
Ultra  Twin  must  be  mounted  in  a  non-hazardous  (safe)  area,  and  the 
transducer fitted in the hazardous area.  
 
 
 
 
 
 
When choosing a location to mount the enclosure, bear in mind the following: 
  Ensure that the Ultra Twin is installed in a “Safe”, non-hazardous, 
area. 
  For a clear view of the LCD display it is recommended that it is 
mounted at eye level. 
  The mounting surface is vibration-free. 
  The  ambient  temperature  is  between  -4
o
F  and  140
o
F  (-20ºC  and 
50ºC). 
  There should be no high voltage cables or inverters close by. 
Class I, Div. 1, Group A, B, C & D 
Class II, Div. 1, Group E, F & G