SUNX Limited MJE-SF4B01 No.0005-03V
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21
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2-3-3 Influence of Reflective Surfaces
Install this device at a distance of at least A (m) (given below) away from reflective surfaces
such as metal walls, floors, ceilings, workpieces, covers, panels or glass surfaces.
<Side View>
<Top View>
Distance between emitter and receiver
(Sensing range L)
Allowable installation distance A
0.3 to 3m
0.16m
3 to 9m (Note 1)
L x tan = L x 0.052 (m) ( = 3°)
Notes: 1) The sensing range L is applicable to
SF4B-H -01
(12 to 64 beam channels) and
SF4B-A -01
(6 to
32 beam channels). For
SF4B-F -01
and
SF4B-H -01
(72 to 96 beam channels) and
SF4B-A -01
(36 to 48 beam channels), the distance between emitter and receiver is 3 to 7m.
2) The effective aperture angle for this device is ±2.5° (when L > 3m) as required by IEC 61496-2 / UL
61496-2. However, install this device away from reflective surfaces considering an effective aperture
angle of ±3° to take care of beam misalignment, etc. during installation.
Allowable Distance from Sensor Beam Channel to Reflective Surface
If there exists a reflective surface in the place where this device is to be installed, make sure
to install this device so that reflected light from the reflective surface does not enter into the
receiver, or take countermeasures such as painting, masking, roughening, or changing the
material of the reflective surface, etc. Failure to do so may cause the sensor not to detect,
resulting in death or serious injury.
