RaycoWylie i3500 Instruction Manual page 12

The crane operator will also be warned by the audible alarm when the
operational limits or the range limiting function is activated and a selected
limit is reached. See Table (1) for more details on audible signal operation.
Visual alarms
The display of the i3500 system has been equipped with up to 3 warning lights
to warn the operator and signal for a specific course of action. A yellow light
will blink along with the audible alarm at the threshold point of the approach
alarm (at 95%) of the rated capacity (100%).
A red light will illuminate when the rated capacity has been reached or exceeded.
An additional red light will also turn on when the rated capacity limiter is
activated (Cut Off).
External visual alarms are also provided with the external audible alarm to
warn the personnel in the danger zone so that they can be aware of the danger
when the rated capacity limiter is activated or overridden. Note that depending
on system configuration, your system may be equipped with one or with three
external lights. See tables 1 and 2 for external visual alarm operation.
Telescopic Cranes Pressure Sensing
When wearing ear protection safety devices or
if using music earphones during crane operations,
make sure that they will not impair your ability
to hear the audible warning signals while operating
the i3500 system.
6
i3500 Introduction
Instruction Manual