Gen4 - Calibration - Load Calibration Basic Outline
The load calibration procedure will ask the operator to calibrate the load for the attachment. The operator will be
required to perform the calibration procedure for each different attachment.
The first step in the procedure is to determine the pressure reading at the different boom angles and lengths with
no load on the attachment - this is referred to as the zero calibration. The zero calibration is made up of a series of
boom angle calibration steps, each at a different boom extension.
As the boom angle increases the weight of the load (in this case the boom) shifts from the main lift cylinder to the
boom pivot. Thus the pressure reading decreases as the boom angle increases. During a boom angle calibration
step, the calibration software will ask to record the boom sensor data and store this information as a data point.
These data points are then combined to produce a graph. The graph results in a curve. The graph points are then
calculated to produce a curve of best fit.
The same procedure is then repeated but with a different boom extension. If the boom segments extend in a
non-proportional manner a boom angle calibration should be performed at each extension where the next
segment starts to extend. If the boom extends proportionally it should only require another boom angle calibration
at maximum extension. To complete the calibration at least one boom angle calibration needs to be performed at a
boom extension that is close to the maximum boom extension allowed for the attachment. The graph produces a
similar curve, however, the pressure required to lift the boom is greater when the boom is extended.
Once the zero calibration is completed, the system can now determine the resultant pressure with no load on the
attachment (given the boom angle and length). Now the system needs to know how the pressure increases when
lifting a load - this is referred to as the gain calibration. The operator will be required to lift a load with a known
weight and enter the weight into the software. The gain calibration is similar to the zero calibration with boom
angle calibration steps at different boom extensions and the resultant graph curves are similar.
After the gain calibration is completed the load calibration for this attachment is complete.
Related Articles
Gen4 - Calibration - Load Calibration Tips
This Tech Doc will offer a few suggestions to follow in order to perform an accurate calibration. The points listed below are recommended to follow for each of the calibration steps. Make sure to lower the stabilizers (if fitted) and try to level the ...Gen4 - General - Gen 4 Components Outline
Hardware Overview Display The Model 6205 Display Module is the main HMI device for the Gen4-LMS. It is used to display information to the operator. It contains a built in touch screen to allow the operator to interact with the system, and dual audio ...Gen3 - Software - Update Configuration and Load Calibration for Barminco
Follow the instructions below to update the Gen3-LMS with the latest configuration and load calibrations. Remove the SD card from the Gen3 display and insert into a laptop Click on the links below that matches the machine Volvo L90H Volvo L120H Click ...Gen3 - Calibration - Perform Attachment Calibrations
Calibration for attachments requires discipline, is time consuming and should be completed carefully. To carefully complete an attachment calibration usually requires one to two hours of work. The attachment calibration task requires: 1. Gen 3 ...SFPL - Installation - Sensor Calibration
Once the installation is complete, the sensors will require calibration. Sensors may also require re-calibration with other maintenance tasks (Display, SD card, Cable reeler replacement) Sensor calibration steps below: A sensor calibration must be ...