SICK WebChecker MLG-2 User Manual

Wavelength 850 nm
Ambient light immunity 100,000 lx
Beam separation 5 mm
Number of beams (Number of connection side module + number of
head side modules) x 30 (without empty modules)
Measurement field width 145 … 3,145 mm including empty modules
Limiting range 3.5 m
Operating range 2.5 m
Minimum sensing range 0.2 m
Initialization time after switch-on < 1 s
Response time see "Response time", page 89
Cycle time 32 µs per beam
Accuracy of a sheet width
1
± 0.3 mm
see "accuracy", page 93
Repeatability 6 µm (1 sigma, 0% object transmission)
Error per sheet width and temperature
change
0.17 mm / (1 m * 10 K)
Select the read direction from the connection side if
there are large temperature fluctuations.
Analog output resolution
2
Depends on the MLG-2 variant.
Measurement field width x 0.0625 mm/mA
Measuring range 4 ... 20 mA at 12 bit resolution
Maximum number of detectable edges 10
Maximum object transmission
3
80%
Minimum transmission difference per
edge
20%
1
Conditions: Sheet edge in optimal object position, fluctuation in read direction < ± 100 mm, constant
ambient temperature
2
The resolution of the analog outputs can influence the accuracy. The longer the measurement field width,
the larger the influence.
3
In materials with high transmission, the temperature difference between the operating temperature and
the temperature during teach-in must be less than ± 15 K.
Required distances
Table 49: MLG-2 data sheet – required distances
Optimal object position see "Optimal object position", page 91
"Measurement field border - edge" mini‐
mum distance (distance A)
•
Typical distance: 23 mm
•
Minimum distance under ideal conditions:
8 mm
1
“Edge - edge” minimum distance (dis‐
tance B)
•
Typical distance: 25 mm
•
Minimum distance under ideal conditions:
10 mm
1
1
Ideal conditions: Homogeneous material, optimal ambient conditions and optimal object position
16 TECHNICAL DATA
88
O P E R A T I N G I N S T R U C T I O N | MLG-2 WebChecker 8024643/2019-09-02 | SICK
Subject to change without notice

SICK WebChecker MLG-2 Specifications

General

Brand	SICK
Model	WebChecker MLG-2
Category	Measuring Instruments
Language	English