Johnson Theodolites 40-6936 Manual De Instrucciones página 21

8863H-All_Manuals 3/19/15 3:25 PM Page 21
Sound Function
When the sound function is activated and the instrument is rotated,
the instrument will sound when the horizontal angle passes 0°, 90°,
180°, & 270°. Please refer to "initial setting" chapter to set horizontal
angle sound function.
Backlight LCD Telescope Reticle and Timing Power-Off
The display and telescope's reticle on this theodolite are equipped
with a lighting device. Press the FUNC key twice to turn on the light.
Press the key twice again to turn it off. The instrument will
automatically turn off to save power if it has not received an
operation within 10 minutes, 20 minutes or 30 minutes. Please refer
to the "initial setting" section.
Laser (Telescope)
With the instrument turned on, turn on the laser on/off/adjustment
knob. Turning the knob all the way to the right will increase the
beams visibility. The laser dot can be focused using the focusing
ring. The beam is emitted from the objective lens and does not
impede viewing. The laser dot will not be seen when sighting
through the eyepiece lens.
Laser (Plummet)
With the instrument turned on, turn on the laser plummet on/off knob
turning it all the way clockwise. The laser plummet will turn off when
the instrument is turned off.
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