46 Thermalert GP Series Operator’s Manual
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)
42
0.7
18
8
200
2
1000
100
0.18"@8"
4.5mm@200mm
GPS CLOSE FOCUS
45:1
Figure B-15: GPS Close Focus Optical Chart
B.5.8.2 Thermal
Temperature range: -18 to 538°C (0 to 1000°F)
Spectral Response: 8 to 14 microns
Accuracy: ± 1% of reading or ± 1°C (2°F), whichever is
(with GP monitor) greater, @ 23°C ± 5°C (73 ± 9°F) ambient
Repeatability: ±0.5% of reading or ± 1°C (2°F), whichever is
greater, @ 23°C ± 5°C (73 ± 9°F) ambient
Response Time: 300 ms (95% response, 4/20mA output)
Temperature Coefficient: 0.15°C per °C (0.15°F per °F)