Battery: The battery in the machine is a special lithium-ion polymer battery. The charging voltage is 5V, and the charging temperature ranges from 0℃～ 50℃. When the ambient temperature is too high, the charging will automatically terminate. When the instrument is not used for a long time, the battery should be removed. The temperature range of the battery during long-term storage is -20℃～ 45℃.otdr power meter

Please use the special AC adapter attached to this instrument and use the external power supply strictly according to the specifications, otherwise the equipment may be damaged.
otdr 1310/1550/1625

LCD screen: The display of this series of instruments is 3.5 inch color LCD. In order to maintain good viewing effect, please keep the LCD screen clean and clean. When cleaning, the LCD screen can be cleaned by wiping with soft fabric.
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Warnings:

When using this instrument, please do not look directly at the optical interface or the end of the optical fiber with your eyes, avoid eye damage!Any change or modification not explicitly permitted in this manual will deprive you of the right to operate the equipment.To reduce the risk of fire or electric shock, do not expose the equipment to thunderstorm or humid environment.In order to prevent electric shock, do not open the shell, it must be repaired by
the qualified personnel designated by the manufacturer.anritsu mt9090a otdr
otdr 1310/1550nm

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