Boom Angle Indicator
Rieker 4120 Series of rugged ALL-Weather
Mechanical Boom Angle
Digital Boom Angle Indicator
Rieker RDSR3-BA-09 Digital LCD Display Remote electronic boom
angle indicator is sealed in a rugged case that protects the sensor components
from harsh environments.
An inclinometer utilized for boom angle indication typically has a degree range
of -10 to +90 degrees
to accommodate a variety of boom types.
The capacities that are listed on the
crane load charts are also based on
and vary with the boom angle of the crane.
For example: On hydraulic cranes, the
boom angle is the angle between the bottom of the boom butt and the horizontal while the boom is
under load (fig 1, view A). The boom angle on lattice boom cranes is the angle
between center line of the boom (from
the boom butt pins to the boom tip sheave) and the horizontal while the boom is
under load (fig 1, view B)
To check the accuracy of the
boom angle indicator, place a 3-foot builders level on the center boom section
and raise or lower the boom until
the level indicates the boom is level. At this point the boom angle indicator
should show the boom is at zero
degrees or adjusted to read zero degrees.
Rieker Boom Angle Indicators comply with current
an application that
requires custom specifications,
us today with your requirements. One of our engineers
will be happy to speak with you.
Occupational Safety & Health Administration / U.S. Department of Labor
Part Title: Safety and Health Regulations for
Subpart Title: 1926 Subpart N: Cranes, Derricks,
Hoists, Elevators, and Conveyors
...1926.550(g)(3)(ii): Instruments and Components
......1926.550(g)(3)(ii)(A): Cranes and derricks with
variable angle booms shall be equipped with a boom angle indicator, readily
visible to the operator.
Click the link below to visit the OSHA web site>