Steren CAL-150 Instructivo De Uso página 157

introduced data.
Root / Cubed Root
Introduce the x value, press this button and introduce the y
value in order to calculate the root of the y value. In SD or
LR mode, this function is only available after pressing the
button.
Press this button after pressing the button in order
to obtain the cubed root of the numbers introduced after-
wards.
Press this button in Base-N mode in order to obtain a logic
sum ("or").
In SD or LR mode this button is used for data entry.
Contrast adjustment
Press the button or the button after pressing the
button in order to adjust the LCD screen's contrast. If
you press the button, the screen will get lighter. If you
press the button, the screen will get darker.
If the screen becomes dark and diffi cult to read, even if the
contrast has been adjusted, the batteries probably need to
be changed.