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©2010 Johnson Level & Tool

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Detector Usage Model No. 40-6770

1. Technical Specifications

Detecting accuracy

Fine      ±0.039" (±1mm)

Coarse  ±0.098" (±2.5mm)

Turn-off time 

5 minutes

Operating voltage 

DC9V

Size 

6-3/4" x 3" x 1" (0.266 x 0.118 x 0.029mm)

Weight 

0.55 Ibs (0.249 Kg)

Dust and rain resistant

Illuminated Screen

Multi-functional double sides display

Buzzer for recognizing location

3708H_Manuals  7/20/10  11:27 AM  Page 1

Содержание 40-6770

Страница 1: ...acy Fine 0 039 1mm Coarse 0 098 2 5mm Turn off time 5 minutes Operating voltage DC9V Size 6 3 4 x 3 x 1 0 266 x 0 118 x 0 029mm Weight 0 55 Ibs 0 249 Kg Dust and rain resistant Illuminated Screen Multi functional double sides display Buzzer for recognizing location 3708H_Manuals 7 20 10 11 27 AM Page 1 ...

Страница 2: ...utton 7 Back light button 8 Receiving window 9 Display window 10 Reference rabbet 11 Location hole 12 Threaded hole 13 Battery box cap b Display 1 Power symbol 2 Low battery symbol 3 Coarse Fine detection symbol 4 Sound symbol 5 Detecting position symbol 2 2010 Johnson Level Tool 3708H_Manuals 7 20 10 11 27 AM Page 2 ...

Страница 3: ...ttery out if the instrument is not used for a long time b Turn on off Press the power button When Power symbol is displayed the instrument is ready for coarse detection When low battery symbol is displayed change the battery Press the power button again to turn off the instrument c Using the clamp 1 Adjusting bolt 2 Quick release button 3 Detector connecting screw 3708H_Manuals 7 20 10 11 27 AM Pa...

Страница 4: ...hen the detector displays like Fig A move the detector slightly down as indicated by the arrow When it displays like Fig B move it slightly up as indicated by the arrow When Fig C is displayed the detector is level with the rotating laser beam Tighten the adjusting bolt and mark the position on the grade rod next to the rabbet This mark will be the horizontal reference in the coarse mode 3708H_Man...

Страница 5: ...detection e Sound function If the detector is working in a situation where it is difficult to use the display function the sound function can be used instead Press the sound function button The sound symbol is displayed and the detector is ready for sound function The detector then conducts detection through sound horn signals When the sound signal is a short sound move the detector slightly upwar...

Страница 6: ...rn off timer The detector will automatically turn off if it has not received a laser signal for 5 minutes g Back light system Press the back light button which will illuminate the display window 3708H_Manuals 7 20 10 11 27 AM Page 6 ...

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