SI 675
Issue B
EDI 8262
Telescopic cranes with derrick pressure sensors CALIBRATION W2245
29
4.3 Calibration data
The calibration data menu is a sub-menu of variables used in general operation of
the system.
Scroll down to menu «25 - CALIB. DATA».
There is no double confirmation when calibrating. Press ENTER to free the
displayed value, modify the value using keys 2 or 4, then press ENTER again to
store the revised value. Then scroll to the next value.
The variables are listed below, all dimensions are displayed in the units defined on
the display at start-up.
4.3.1 Slew Offset
The distance between the center of rotation of the crane and the boom base
pin in units and tenths of units. The value is negative if the boom base pin is
behind the center of rotation. Use the set button #4 until the value becomes
negative. E.G: 2 feet, 4 inches on a telescopic crane becomes minus 2.3ft (-
2.3)
4.3.2 Sheave Radius
The radius of the boom head sheave block in unit and tenths of unit. It is
used to compensate the radius when lifting with one part of line.
4.3.4 Main Hoist Rope Limit
This is the maximum line pull permitted per part of line on the main hoist
according to the chart. This value multiplied by the parts of line is used as
the load limitation if lower than the rated capacity obtained from the load
chart for the current crane configuration and radius or angle.
Calib:#2
↑
- #4
↓
25 – Calib. Data
Data: #2
↑
- #4
↓
31 – Slew Off:-1.0
Data: #2
↑
- #4
↓
32 – Sheave R:0.30
Data: #2
↑
- #4
↓
33 – Rope Mn : 4.5
