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Two-Sided Laser Detector with Clamp
Model No. 40-6780
Instruction Manual
This product features a high sensitivity, a double-faced display, low power
consumption, and good reliability. It can be used with the Acculine Pro
40-6662 and 40-6602 laser levels.
1. Technical Specifications
Detecting Range: Up to 300’ (90m)
Detecting Accuracy: 0.019” ≤ 50 ft. (0.5mm ≤ 15m)
0.039” ≤ 100 ft. (1mm ≤ 35m)
0.059” ≥ 100 ft. (1.5mm ≥ 35m)
Automatic Shut-off: 6 minutes
Power Supply: 9V battery
Sound Indicator: fast tone, double tone and solid tone
LCD: Up arrow, Down arrow,Center sign
LED Indication: Up, Middle, Down
Dimensions: 5.905" x 2.992" x 1.142" (150 x 76 x 29mm)
Weight: 0.386 lb. (0.175kg)
Others: Rain and dust resistant
©2008 Johnson Level & Tool 1
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2. Components
With this laser detector, a line generated pulsed Acculine Pro Laser
can be used both indoors with bright light and/or outdoors in the
sunlight where the beams are not visible.
1. Horizontal Vial
2. Reception Window
3. Sound On/Off Key
4. Power On/Off Key
5. Vertical Vial
6. Display Window
7. Front On Grade Mark
Display Window Symbols
1. Power On
2.
Low Voltage
3. Coarse/Fine
4. Sound On
5. Position Indication Arrows
2 ©2008 Johnson Level & Tool
8. Beeper
9. Top Indicator Light
10. Middle Indicator Light
11. Bottom Indicator Light
12. Rear On Grade Mark
13. Rod Bracket Thread
14. Battery Door
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3. Operation Instructions
1. Battery Installation
Open the battery door, and put in one 9V battery according to the
polarity shown inside. Then snap the battery door
back.
Note:
• Remove the ba
stored for a long time.
• Replace the battery when the low voltage
indicator shows a low battery.
2. Operating Instructions
ttery when the unit is being
IMPORTANT
the pulse mode.
A. Press the P
will beep twice and all the symbols will be
displayed on the display window. After
0.5 seconds the detector will enter its
detecting mode.
B. Detecting the horizontal laser signal: Put
the detector in a vertical position and center
the bubble in the horizontal vial with the
reception windo
arrow shown on the display window and a lit
red light indicates the laser signal is below the detectors on grade
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: This detector will only work when the laser is in
ower on/off key: The detector
w facing the laser. A down
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mark. An up arrow plus a yellow lit light indicates the laser signal is
above the detectors on grade mark. A middle sign plus a lit green light
indicates the laser signal is on grade.
Note: When the laser signal moves towards the
center position,
the displayed up or down
arrows will decrease in size, until the center
single line appears.
C. Detecting the vertical laser signal: Put the
detector in a horizontal position (center the bubble
in the horizontal vial) with the reception windo
w
and indicator lights facing up. Have the reception
window face the unit to receive the vertical laser
signal. Left arrow shown on LCD plus a lit red light
indicates the laser signal is on the left side of center.
A middle sign with a lit green light indicates the
laser signal is on the middle position. A right arrow plus a lit
yellow light indicates the laser signal is on the right side of center.
D. Press the Power on/off key to power off the detector. The
detector will beep twice for off.
3. Sound Function
Pressing the sound key when the unit
wered-on. This will switch the
is po
unit between sound on and sound off,
Sound
On
Sound
Off
note the sound sign indication on LCD.
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Sound function on:
• If the laser signal is on the top (left) side, then the detector will
give a fast tone.
• If the laser signal is on the bottom (right) side, then the detector
will give a double tone.
• If the laser signal is on the middle, then the detector will have a
solid tone.
4. Automatic Shut-Off Function
When not receiving a laser signal and with no operation of the keys
for six continuous minutes,
the unit will power off automatically to
preserve battery life.
5. Low Battery Indicator Function
• When the power indicator sign is blinking, it
tes that the battery is low and should
indica
be replaced.
• A very low battery will result in an automatic
power-off, which requires the user to
replace before continued operation.
Blink
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6 ©2008 Johnson Level & Tool