FEATURES (Fig. 1)
1
Above grade LED indicators
2
On grade indicators
3
Below grade LED indicators
4
Laser beam reception area, 5 inch length
240° angle
5
Magnets, attach to rod clamp or machine
6
Deadband switch on/off
7
Power switch-on/off
8
Beeper/backlight switch
9
Batter access door
10 serial number label
Liquid Crystal Display (LCD) (Fig.2)
11 Above grade indicators
12 On-grade indicators
13 Below grade indicators
14 Deadband indicators
15 Battery status
16 Backlight status
17 Beeper status
Grade Rod Clamp (Fig.3)
18 Attachment plates for receiver magnets
19 Reference indicators
20 Clamping screw
4 • LD500
ICONS
Press the power switch to turn
the receiver on. Press and hold
for two seconds to turn the
power off.
Deadband accuracy selection.
Pressing this button cycles
through the following
selections.
1.0inch, machine mode wide,
LED's on
O.4 inch, machine mode
medium, LED's on
0.2 inch, grade rod mode fine,
LED's off
Beeper/LCD backlighting
selection.( No horn symbol if
beeper is off). Pressing this
button will perform following
feature:
Press once for beeper loud.
Press again for beeper low.
Press again to turn off.
Press and hold for two seconds
to turn backlight on. Press and
hold for two seconds to turn off.
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