LaserGuard Mini Instruction Manual
April 2020
Page 8 of 25
An adjustable mounting bracket is supplied with the system, along with a reflective target. The reflective
target is mounted on the wall or other crane that is going to be protected by the collision avoidance
system.
The two laser distance set-points are adjustable to trip the relays from approximately 8 in. to 164 ft. (0.2-
50m). The first distance set-point (typically a Slowdown point) signals for the crane to start decelerating.
The second distance set-point (typically a Stop point) will signal the crane to apply its brakes.
The relationship between these points are as follows:
164 ft. (50m)
≥ Slowdown > Stop ≥ 8 in. (0.2m)
1.4.
System Specifications
Specification
Laser Sensor
LaserGuard Mini Models
LGM-OPEN-x-x
LGM-4X
Operating Ambient
Temperature
-20° to 122°F
[-30° to 50°C]
-4° to 141°F
[-20° to 60°C]
-4° to 122°F
[-20° to 50°C]
Detection Range
8 in.-164 ft.
[0.2-50 m]
--
Input Voltage
--
85-264 VAC or 120-370 VDC
Accuracy
1 in.
[25.4mm]
--
Hysteresis
Approx. 12 in.
[0.3m]
--
Control Outputs
--
Two form C relays rated at 6A, 270 VAC and 24 VDC
Laser Class
1
--
Laser Wavelength
660 nm
--
Ambient Light Limit
50000 Lux
--
Enclosure
(Standard)
Plastic IP65
Open Chassis
Fiberglass NEMA 4X
Dimensions
H x W x D
3.5 x 1.0 x 2.2 in.
[88 x 26 x 55 mm]
8.75 x 6.75 x 4.25 in.
[222 x 171 x 108 mm]
10.5 x 8.5 x 6.25 in.
[267 x 216 x 159 mm]
Weight
0.2 lbs.
[0.09 kg]
2.0 lbs.
[0.91 kg]
5.6 lbs.
[2.54 kg]
Reflector
Dimensions
--
2 x 2 ft.
[0.61 x 0.61 m]
Laser Cable Length
--
32.8 ft. [10m], 82 ft. [25m], 131.2 ft. [40m], or 246 ft. [75m]
