WASL PTA
Learn how to Calibrate weight sensors of WASL PTA
Sensors calibration
You can only calibrate weight sensors for trucks linked to customers already registered at WASL PTA.
Log in as admin, then go to manage customers.
Identify customer
All the customers will be listed. Find the customer you want by using any of the following filters.
- Organization ID: enter organization ID in the text box.
- Customer name: enter the customer name in the text box.
- C.R number: enter the customer’s commercial number.
- Package: filter customers by their packages.
- Status: filter customers by their statuses (Active/ inactive)
- Devices: filter customers by their devices.
- Region: filter customers according to their region.
After identifying the customer, he must be registered on WASL PTA. If not, go to register a customer.
To find the vehicle you need to Calibrate its weight sensors
- Click on the “manage” button on the right-hand side in the same row of the customer’s name.
- From the customer’s view, hoover over the “Fleet” tab then click on vehicles from the drop-down menu.
- Then identify the vehicle you want to calibrate.
To identify the vehicle:
All the vehicles linked to the customer will be listed. Find the vehicle you want by using any of the following filters:
- Vehicle Name
- Plate Number
- Asset Category
- Group
- Level
- Insurance Expiry
- Registration Expiry
Weight sensors calibration is only needed for two types of vehicles:
- Truck (One piece)
- Truck (Head and Trailer)
During the calibration, the vehicle will be marked “Under Calibration” and will get back to its normal status right after finishing.
After identifying the vehicle, you can calibrate its sensors by:
- Click on the “Weight Calibration” icon on the right-hand side.
- Determine the calibration time interval (The sensor obtains data in this period of time, and then computes the average)
- With communicating with the technician on site, enter the weight value that the truck (Head) carries.
- With communicating with the technician on site, enter the weight value that the truck (Trailer) carries.
- Then click on the “Get avg Voltage”
- The results will show under the Voltage tab next to the weight text box.
- Click on “save all”, “save head”, “save trailer”, or “cancel”.
- Then enter another weight, and repeat the process.
After taking at least two weights. You can calculate sensors accuracy. Enter the following data:
- Actual Weight (from ground load scale) entered by admin.
- Gross Weight (from sensor) system generated
- Accuracy percentage (%) system generated
- Last check
- Checked by
Then click on “Click accuracy”
- To improve the calibration, you can increase the time interval.
- The least accepted accuracy is 90%
