THH960
User Manual
(v1.6)
52
•
Some medical cotton.
Cleaning steps
Step 1 Dip the medical cotton in ethanol.
Step 2 Gently wipe the lens with the medical cotton.
•
Medical cotton is a one-time use item, do not reuse.
•
Be careful when cleaning the thermal lens and don't wide too hard! The lens has a
delicate anti-reflection coating, and applying too much force may damage the coating.
5.3
Lithium battery maintenance
•
Do not place batteries and battery packs near heat or fire. Do not expose the product
to heat sources or high temperatures (such as direct sunlight, or in unattended vehicles
under the sunlight).
•
Do not disassemble or squeeze batteries and battery packs.
•
If the camera is stored for a long time, please remove the battery.
•
Please use the original power adapter to charge the battery.
•
Keep batteries and battery packs clean and dry
6
Emissivity Data
Table 6-1: Emissivity Table
(
for reference only)
Material
Surface
Temp. (
°
C)
Emissivity (
ε
)
Aluminum
Non-oxidized
100
0.20
Oxidized
100
0.55
Brass
Polished brown
20
0.40
Matt
38
0.22
Oxidized
100
0.61
Copper
Seriously
oxidized
20
0.78
Iron
Oxidized
100
0.74
Rusty
25
0.65
Cast iron
Oxidized
200
0.64
Non-oxidized
100
0.21
Wrought iron
Hairy
25
0.94
Polished
38
0.28
Nickel
Oxidized
200
0.37
Stainless
steel
Oxidized
60
0.85
Steel
800
°
C Oxidized
200
0.79
General brick
Surface
20
0.93
Concrete
Surface
20
0.92
Glass
Polished flat
20
0.94
