Datel MAY600 PON OTDR, Руководство пользователя, Страница: 18 / 19

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The battery inside the instrument is a special lithium battery. In order to give full play to the performance of the battery,
please use the internal battery power supply when you start using the instrument. The first use of the battery needs to be
depleted, and then charging the battery, the first charging time should be no less than 10 hours. Battery charging
temperature range is 0°C~50°C. For your safety, the charge will terminate automatically when the charging temperature is
too high. When the instrument is idle for more than two months, it should be charged in time to maintain the battery power.
Please don’t take out the battery without permission. Please do not let the battery close to the fire source or strong heat.
The battery should be removed when the instrument is stored for a long time. The storage temperature range of the
battery is -20°C~45°C.
Instrument screen cleaning and touch calibration
The display of the instrument is a 5.8 inch color LCD with touch screen. Please do not use sharp objects to click on the
screen, otherwise it may lead to damage to the LCD screen. You can clean the LCD screen using soft fabric, but do not
use organic solvent.
Instrument calibration
It is recommended that the instrument be calibrated once every two years. Please contact the supplier for specific items.
Common faults and troubleshooting
Common faults Failure cause Troubleshooting
Instrument can not start normally Battery low power Battery charging
Instrument can not charge properly
Ambient temperature is too high or low Charge the battery in the 0
℃
~45
℃
Poor battery connect Check battery connectors
Instrument problem Contact supplier
Inaccuracy test results
Incorrect parameter setting Resetting parameters
Optical fiber end contamination Clean the end face of fiber
Connector type mismatch Replacing matching connector
Optical port damage Replacing fiber connector
Noise too high of test curve
Connector type mismatch Replacing matching connector
Pulse width too small Increasing pulse width
Incorrect attenuation Modify attenuation
Saturation of curve front end
Pulse width too large Reducing pulse width
Incorrect attenuation Modify attenuation
Slow down of curve front end
Optical fiber end contamination Clean the end face of fiber
Optical port damage Replacing fiber connector
Connector types mismatch Replacing matching connector
Unable to measurement
the end of fiber Range too small Increasing test range
Pulse width too small Increasing pulse width
Event analysis error Incorrect test conditions Modify test conditions
Optical fiber length inaccuracy
Incorrect test conditions Modify test conditions
Incorrect fiber refractive index Modify fiber refractive index
Incorrect optical cable correction Modify optical cable correction
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