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Stabilisation and testing
The detector stabilises automatically but it is
necessary to check the area which is being
protected in order to make quite sure that the
beam is being refl ected only by the refl ector and
not by other material.
1. Remove all material that might refl ect light.
Light can be refl ected not only by obvious
sources, such as metal surfaces, glass or
computer screens but also by paper, partition-
ing painted in pastel shades or even cloth-
ing—white shirts being a typical example.
2. Push the mode switch (Fig 12 on page 13)
down to Operating Mode.
When the detector has been switched to
Operating Mode it performs an internal cali-
bration check. The amber LED may fl ash for
up to 60 seconds. When it goes out, perform
the refl ector test.
If the detector fails to calibrate the amber
LED will fl ash after 60 seconds. Please refer
to 'Troubleshooting' on page 20 if this should
happen.
Refl ector test
Cover the refl ector completely with non-refl ective
material. After 15 seconds or sooner the amber
LED of the beam detector will fl ash. Uncover the
refl ector.
If the amber LED does not fl ash, light is being
refl ected by an object other than the refl ector.
Repeat the targeting and aligning procedures
in full.
Once the refl ector test has been carried out suc-
cessfully, the targeting and aligning procedures
have been completed.
16
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