Product description
52
© SICK AG · Germany · All rights reserved · Subject to change without notice
8012471/ZN27/2017-06-09
Operating Instructions
LMS1xx Laser Measurement Sensors
Chapter
3
The distance-dependent increase in the size of the beam can be calculated using the
formula:
beam diameter = (distance (mm) × 0.015 rad) + 8 mm
The following table shows a few values as examples:
For the assessment of whether the laser beam can be incident on an object or the wall, the
distance of half the beam diameter from the optical axis is used.
Recommendation
Take into account a safety supplement of approx. 5 mm per meter.
3.13.4
Heating
A separate source of power is required for the heating in the LMS11x, LMS15x and LMS182
as well as the LMS13x/LMS14x and LMC13x (supply voltage DC 24 V, minimum output
power 50 W).
The heating starts to heat at an internal temperature below 10 °C It then operates for at
least three seconds. If the temperature is always around 10 °C then the heating will often
operate for a short time.
Important
The minimum operating ambient temperature of –30 °C respectively –40 °C (LMS14x) is
guaranteed for a wind speed of 0 m/s. Based on experience, operation with a wind speed
of up to 0.5 m/s is possible. At higher wind speed the heat from the heating is removed from
the device too quickly.
Distance
5 m
10 m
15 m
20 m
40 m
50 m
Beam diameter
83 mm
158 mm
233 mm
308 mm
608 mm
758 mm
Tab. 15:
Beam diameter at different distances from the LMS1xx
Temperature in the LMS1xx
Behaviour of the device/heating
T > 0 °C
The device starts
T < 0 °C
Heating is active until the device will start
During operation:
The device continues to operate, a telegram is output
indicating that the temperature has dropped below the
operating temperature
Tab. 16:
Behaviour of device and heating, depending on the inner temperature
