4.6 Detection Do
'
s and Don
'
ts
Figure 4.6 Do's and Don'ts when detecting through the glass
Figure 4.7 Avoid detecting through anti-infrared or absorbing infrared material
Please avoid detecting through materials that have
strong absorption or reflection effect on the infrared
laser, such as PMMA, laminated glass, anti-infrared
glass. In such case, the methane concentration behind
can't be detected or the measurement result may be
inaccurate.
4.6.2 Case 2
When detecting through the glass, if the infrared laser is incident on the glass vertically, part of the light reflected by the glass will be
received by the device, which will cause light intensity saturation or inaccurate measurement result.
In such case, please point as shown in Figure 4.6.B to avoid receiving the glass reflected light.
4.6.1 Case 1
A
B
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