LS701 Laser detector Instruction Manual
1. Description of the product
LS701 laser detector is an indispensable accessory of rotating laser instrument. The two must be used
together. This detector not only can detect the position of the laser signals transmitted by the rotating laser
instrument, but also provide the horizontal references quickly and precisely.
This product is characterized by high sensitivity, single-faced LED display, low power consumption, good
reliability and easy manipulation. It can be used with different types of rotating laser.
2. Components
1. Cord-hanging hole 6. Reference rabbet
2. Signal indicator 7. Power key
3. Buzzer 8. Zero-position indication line
4. Long vial 9. Connecting nut
5. Detecting window 10. Battery door
After power on, the middle signal indicator turns green first and then turns red. After the
buzzer gives short reminding sound for two times, the unit will power off automatically. In
this case, it means that the battery voltage is seriously low and it is necessary to replace
the battery immediately to keep on using.
After power on, the down signal indicator flashes, which means that the battery is at low
voltage, and it is necessary to replace the battery in time.
Power key: turn on/off the instrument
3. Battery installation
(1) Open the battery cover-board and put the battery into the battery case according to the polarity shown in
the battery slot.
(2) Snap the battery cover-board back, and push it to the end along the two grooves.
Note：
(1) Take the battery out when the unit is not in use for a long time.
(2) When displaying low battery, change the battery as soon
4. Detecting methods
(1) This unit can detect the red laser beam with a wavelength of 600nm～780nm.
(2) Set the rotating laser to the scanning state.
(3) Press key once, the middle signal indicator with short illumination turns red first and then turns green,
and meanwhile there is a lasting sound to remind that the instrument is ON. Then the instrument will enter
into the laser detecting state.
While detecting, the signal indicator shows as follows:
Note:
1. While detecting the horizontal laser liner, it is necessary to make the bubble vial centered, as the
deflection of the receiver will influence its receiving accuracy.
Long vial
2. Try best to keep the unit face to the rotating laser while detecting
3. Keep the unit stable while detecting
4. Aim at the reference slot while marking the sign
The down red LED
is light
The upper red LED is
light
The middle LED
turns orange
The middle LED
turns green
All LEDs
extinguished
Laser line
The laser line is up
Laser line
The laser line is
down
Laser line
The laser line is nearly
coincident with the zero
position
Laser line
The laser line is
exactly coincident
with the zero position
No laser line
can be
detected
Sound: single short
sound
Sound: single short
sound
Sound: single short
sound
Sound: lasting sound
Sound:
soundless
5. When the instrument cannot receive the laser signal for 6 minutes, and there is no any operation during
these 6 minutes, the middle signal indicator will turn green first and then turn red. Meanwhile, after the
buzzer gives short reminding sound for two times, the unit will power off automatically.
5. Accessories usage
Connecting with the clamp holder
Connecting with the level staff
This plane should be level with the zero position
6. Maintenance
(1) Put the instrument back to the packing case in time after usage, and protect it from moisture while in
storage.
(2) Keep the instrument, particularly the detecting window clean. If there is dusty, using cloth and wipe clean
gently.
(3) Avoid knocking, and falling on the ground.
(4) This instrument doesn’t have the function of rainproof, so you should protect the unit from moisture and
avoid the unit sprayed by the water.
(5) Strictly prohibit throwing the instrument in the fire.
7. Specifications
Detecting range: 120m
Detecting accuracy: ±1.5mm (＜50m） ±2.5mm (≥50m)
Time for automatic power off:： 6 min±1min
Power: DC 3V (AAA*2)
Battery life: 45 h（continuous using）
Sound function: Slowly short sound, rapidly short sound and lasting sound
LED indication: Upper red, middle orange, middle green, down red
Size: 118*67*25 (mm)
Weight: 115g
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