Class1 Digital Aerial Warning Display - Manual (Page 6)

page 6 of 6 pages
Engineering
Standards
Name Digital Aerial Warning Display
Identifier Installation Information
Engineering Standard Number
C1-102342-A
The Class1 Aerial Loading Display is designed to warn aerial operators of
dangerous loading conditions when an aerial device is operated at low angles
of elevation. Live loads (factors that increase this load such as ice, occu-
pants on the ladder, water load, extra equipment, etc.) are instantly taken into
account by the system and displayed to the operator.
The display presents load information in an easy to interpret LED bar graph
display as a percentage of maximum calibrated load and includes a visual
and aural warnings.
When the aerial load approaches the maximum load (approx. 80%), 18 bars
will be illuminated on the display. When the load is increased to 90%-100%,
19-20 bars will be displayed and the display will begin to flash, when the
maximum load is exceeded by 50-100 pounds, an alarm output is activated
that can be used to drive a variety of warning systems that can notify the
operator of a potentially hazardous condition.
The alarm resets when the device comes out of an overload condition.
NOTE: T
HE DISPLAY PROVIDES A WARNING ONLY AND CANNOT PREVENT A TIPOVER
. T
HE
AERIAL DEVICE MUST BE OPERATED IN STRICT ACCORDANCE WITH THE MANUFACTURER
’
S IN
-
STRUCTIONS AND OPERATORS MUST BE THOROUGHLY TRAINED
.
A test switch can be installed to test the alarm output. This function is only
available when the unit is displaying less than 11 bars.
LOW LEVEL LOADING
0 25 50 75 100
Operation
c:\manuals\digital\LoadLevel\aerialESN.p65