- iv - 
 
WARNING 
Never directly touch the internal components of the 
scanner or indicator. Direct contact with these high-voltage 
components may cause electrocution. For maintenance, 
inspection, or adjustment of equipment components, 
consult with our branch office, branch shop, sales office, 
or our distributor in your district. 
To contact our sales department, branch offices, branch 
shops, and sales offices: 
Please refer to the "Office List" at the end of the document.
Do not get close to the radiant section of the scanner. It is 
a rotating part, and it may cause injuries if it suddenly 
starts rotating and consequently hits the body. It is 
recommended that the radiant section be installed at a high 
place such as on the roof of the wheelhouse, on the flying 
bridge, on the trestle, or on the radar mast so that no one 
can get close to it. When any work must be done on the 
scanner, make sure to turn the safety switch off. 
Microwave radiation level: 
Keep out from a distance closer than that specified below 
for each type of scanner when it is transmitting. Being 
within the specified distance from the center of the front 
face of the scanner may cause microwave exposure which 
could result in injuries (especially of the eyes). 
 50W/m
2
 10W/m
2
 2.5W/m
2
 
NKE-2103 n/a  26cm  123cm 
NKE-2254 5cm  81cm  162cm 
NKE-1130 11cm  76cm  181cm 
 
Make sure to install the scanner at a place higher than 
human height. 
Direct exposure to electromagnetic waves at close range 
will have adverse effects on the human body.