Johnson Level & Tool Mfg. 40-6935 - Manual (Page 10)

10 ©2011 Johnson Level & Tool
5. Using the Product
Turning on the Instrument
Press the power key on the instrument for 2 seconds
and all the symbols will be displayed on the LCD. The
buzzer will sound twice and the horizontal angle value
and “0-set” will be displayed. When “0-set” is
displayed none of the key pads operate except for the
power key. Rotate the telescope 360º to activate the vertical
measuring mode and to activate the keypad.
Battery Strength Indicator
The battery symbol on the LCD window displays the current
battery strength.
Full power
Effective battery
Effective battery
Weak voltage but still effective, suggest changing battery packs
Powers off automatically after symbol blinks. Replace the
battery pack or recharge it.
Battery Strength
4430H-English_Manuals 2/22/11 11:08 AM Page 10