Johnson Level & Tool Mfg. 40-6005 - Manual (Page 16)

16 ©2013 Johnson Level & Tool - Rev. 1
For better visibility press and hold the backlight button to
activate the backlight.
It is recommended that you test this function prior to taking important
measurements. Simple write down each Volume calculation on a piece
of paper and add (or subtract) the Volume calculations along with the
Laser Distance Measure. This will familiarize you with the process of
how the calculations are determined.
Follow the Volume measurement instructions above to enter Volume mode.
Once the first Volume calculation is taken it will be displayed in the bottom
row on the LCD screen.
Press and release the button.
Upon pressing the button the LCD screen will be cleared however the
Volume calculation is stored.
The Volume mode will remain active on the LCD screen.
Take the second Volume dimensions.
When the Volume calculation appears in the bottom row press and
release the button again.
You will now see the previous Volume calculation at the top row being
added to the most recent Volume calculation in the middle row.
The sum of both Volume calculations will be displayed in the bottom row.
Follow this sequence to continue tallying additional room dimensions.
To subtract an Volume measurement simply press and release the
button during the sequence and that value will be deducted from the total.
6834H-English_Manuals 4/2/13 1:28 PM Page 16