Placement Of Emitter And Receiver - Panasonic ST4 Instruction Manual

Panasonic ST4 Instruction Manual
Install this device at a distance of at least A m (provided as follows) away from reflective
surfaces such as metal walls, floors, ceilings, work pieces, covers, panels or glass surfaces.
Side view
Reflective ceiling
Emitter
A
A
Reflective floor
Distance between emitter and receiver (sensing
range L)
0.1 to 3m
3 to 15 m
NOTE
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, taking into consideration an effective aperture angle of ±3° to account
for beam misalignment during installation.
Allowable distance from sensor beam axis to reflective surface
0.8
0.6
Install in this area
0.4
0.2
0
Distance between emitter and receiver L (m)

2.3.4 Placement of Emitter and Receiver

You can install a system in which multiple sets of controllers and their respective sensors face
each other. Use this configuration if there is a problem in wiring or additional equipment has to
be protected. If you arrange multiple sets, perform an operation test (see page 46).
SEN TRONIC
AG
Produkte, Support und Service
Receiver
Sensing range
L
Do not install in this area
5 10
Rugghölzli 2
CH - 5453 Busslingen
Top view
Reflective surface
A
∂°
Emitter
∂°
Sensing range L
Allowable installation distance A
0.16m
L/2 x tan 2∂ = L x 0.053m (∂ = 3°)
15
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2.3 Protection Area
21
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