![background image](http://html1.mh-extra.com/html/neilsen/ct2129/ct2129_instruction-manual_3928623006.webp)
slowly slide the unit across the surface. Mark the spot where the display bars
peak and a steady tone sounds. Continue in the same direction until display bars
reduce.
Reverse direction and mark the spot where the display bars peak from
that direction. The midpoint of the two marks is the approximate center of the
object, (see the picture below)
6. CHANGING THE BATTERY
Press battery door release down with your finger or a coin and remove door.
Connect 9-V battery to cable and place inside.
Replace battery door and snap shut.
7. DISPOSAL
At the end of the machine's working life, or when it can no longer be repaired,
ensure that it is disposed of according to national regulations.
Contact your local authority for details of collection schemes in your area.
In all circumstances:
Do not dispose of this tool with domestic waste.
Do not incinerate.
During decommissioning of the equipment, certain hazards should be
understood and avoided:
Only with the line pressure released shall the equipment be disassembled.