User's Manual

3. What is Worker Approach Warning System?
This is a system that alerts people and vehicles to "dangerous situations" ,
when they are in close proximity with the technology of magnetic fields and electromagnetic waves.
1. A magnetic field (125KHz) is being transmitted from the detector.
The direction of the magnetic field is transmitted in all directions by 360°,
and the transmission range is an oval shape with the largest longitudinal direction.
2. Radio waves (315MHz) including "Detection signal" and "Magnetic field strength"
are transmitted from the TAG
in the area where the magnetic field from the detector reaches (max. 8m).
3. The detector sounds an alarm by determining the distance based on the magnetic
field strength from the TAG.
If you use ALERT-TAG, you can also alert from a TAG.
Notes
Detection range
The detection area is 360 degrees in an oval.
The oval shape depends on the orientation of the detector.
Depending on the vehicle shape and environment, the detection area may not be an oval.
Maximum detection range (e.g., 8m version outside detection range)
Long side direction of the detector case:
Set distance
Short side direction of the detector case:
Approx. 80% of the set distance
Distance Attenuation in the Environmental conditions
The sensing distance may be slightly reduced depending on the environmental conditions
(effects of magnetic field noise or radio wave noise, structure of the building including
reinforcement, etc.).
e.g. 8m may be reduced to 6m.
In this case, the setting of the detection distance by dialing decreases proportionally.
Approx. 80%
DETECTOR
Detection Range