Thermalert GP Series Operator’s Manual 45
SPOT DIA. (in)SPOT DIA. (mm)
24 60
90
120
3000
25002000
1500500
0
0
DISTANCE: SENSOR TO OBJECT (mm)
DISTANCE: SENSOR TO OBJECT (in)
92
0.7
18
3
76
4.6
1000
201
0.1"@3"
2.5mm@76mm
GPR CLOSE FOCUS
30:1
Figure B-13: GPR Close Focus Optical Chart
SPOT DIA. (in)SPOT DIA. (mm)
30 60 90
120
3000
2500
1520 2000
1000
0
0
DISTANCE: SENSOR TO OBJECT (mm)
DISTANCE: SENSOR TO OBJECT (in)
1.0
28
0.9
21
12
500
1.1
1.2
1.2" @ 60"
2.3
3.3
25
49
30
30mm @ 1520mm
65
80
GPS STANDARD FOCUS
50:1
Figure B-14: GPS Standard Focus Optical Chart