KYORITSU KEW 2413R - How to Use Data Hold Function; How to Use Back Light

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５- ５ How to Use Data Hold Function
Push in the Data Hold button to freeze the reading. This is especially
useful for taking a reading in a dimly lit or hard-to-reach locations. The
display can be observed away from the conductor. Symbol “ ” is
displayed on the LCD. Push the button again to release the reading.
５- ６ How to use Back Light
When the “Back Light Button” is pressed, the LCD back light will be on.
It will be automatically off after about 10 seconds.
Note： Selection with the frequency selector switch dose not apply to AC
output of the two-way analogue output. DC output of the two-way
analogue output reflects the frequency selector switch setting.
Refer to Figure. 1 for frequency characteristics.