EN-13
3.3. Light Shield Cover
The light shield cover shown in Figure 5. The light shield cover conveniently slid
between the open and closed positions. The light shield cover is held firmly at the
rest positions by permanent magnets.
The light shield cover should be in the closed position during storage, transportation,
and measurements, especially during the turbidity. When turned on, the AP50MM
carries out self-diagnosis including checking the performance of a variety of optical
devices. The light shield door shall be at the closed position to shield interference
from ambient light during self-diagnosis.
Care should be taken to avoid water or debris being trapped in the track of the light
shield door.
Figure 5 Open and Close the Light Shield Cover
Warning
Magnetic sensitive devices, including but not limited to, credit cards, watches, hard
disks, should be keep at a distance of at least 2 inches / 5 cm from the Light Shield
Door to avoid possible damage and/or loss of information recorded.
a-AP50MM