Excavator calibration options
For excavators, the following extra calibration options can be included into the
full calibration procedure:
• Hidden Point
• DogBone
• Measure Swing Boom Rotation Point
• Cylinder Points
• Body Sensors
• Boom Sensors
• Stick Sensors (for example laser catcher)
➜ DogBone and laser catcher can also be calibrated in a separate calibration procedure.
Hidden Point calibration
Whenever possible, calibrate the excavator by measuring point A. If point A is not accessible, use the Hidden Point function.
➜
➜ Before starting the calibration procedure, make sure to set up the total station at the correct distance. A correct setup allows you to measure point AB1 which can be quite high. To obtain good results, ensure that the points AB1, AB2 and AB3 are not measured close to each other.
- Fold the stick gently and lift the boom as high as possible. Measure point AB1.
- Lower the boom as low as possible. Ensure that the stick is folded. Measure point AB2.
- Lift the boom, position the stick vertically and put the bucket gently on the ground. Measure point AB3.
➜ When calibrating a dual-boom excavator, ensure to keep the angle between first and second boom the same while measuring AB1, AB2 and AB3.
DogBone calibration
When DogBone calibration is enabled, an extra step to measure the relevant DogBone Points is added to the calibration procedure.
Measure Swing Boom Rotation Point
When the Measure Swing Boom Rotation Point calibration option is enabled, an extra step is added to the calibration procedure, in order to measure the boom rotation point in addition to the usual calibration points.
➜ Before starting the calibration, ensure that the boom is aligned with the machine body so that no swing is applied.
Calibration of Hydraulic cylinder dimension
- To include cylinder points in the calibration procedure, set the Cylinder Points option to On.
➜ When cylinder points shall be included in the calibration, the DogBone points need to be measured as well. Thus DogBone is switched On automatically together with the cylinder points. - Additionally, set the options Boom Sensors and Stick Sensors to On and select the side on which the sensors are mounted.
➜ Measuring the sensors is required for calibration of semi automatic excavators.
- Tap
to proceed
➜ Adhere to the instructions on the display. - When it comes to measuring the cylinder points, CP1 may not be
visible. If this is the case, determine the offset value on the cylinder using a measuring tape. Enter the offset value in the toolbar and measure the position of the offset point. Tap
to continue with measuring the remaining cylinder points.
➜ When calibrating cylinder points on Dual Boom Excavators, always the cylinder points of 'boom 1' are used, never the points of 'boom 2'.
Calibration of Body Sensors
- To include the body sensor point in the calibration procedure, set the Pitch Sensor Point option to On and select the Mounting Direction of the sensor.
- Tap
to proceed.
➜ Adhere to the instructions on the display.
Calibration of Boom Sensors and Stick Sensors
➜ The stick sensor can be for example a laser catcher.
- To include the Boom Sensors and Stick Sensors in the calibration procedure, set the options to On.
➜ To calibrate the sensors correctly, make sure to set the side of the Boom Sensor Points/Stick Sensor Point to Left or Right.
➜ Left side:
➜ Right side: