Rice Lake OB-350 Loadrunner Series Onboard Weight Indicator - Manual (Page 26)

22 OB-350 Operators Manual
7.0 Calibration
Drive empty truck onto the scale to determine empty weight. Perform span calibration.
Truck Scale
Note
For span calibration, use 3/4 of the full body load.
7.1 Calculating Tare, Gross & Net Weights
1. To determine actual TARE weight, run the empty vehicle onto a truck scale and note the total weight.
Figure 7-1. Vehicle on Truck Scale
2. Load the vehicle as close to its legal maximum as possible.
3. Weigh the Loaded Gross vehicle – run the vehicle across the same truck scale and record the Gross vehicle
weight.
4. Calculate NET weight using: Gross - Tare = Net.
5. Use the NET weight as the span weight during the calibration procedure.
7.1.1 Enter Tare Weight
lb
22000
lb
lb
lb
lb
1. Ensure vehicle is empty, then weigh and record TARE (empty
vehicle).
2. In MENU screen, select Calibration press (OK) .
3. Select Tare.
4. Press (OK) (defaults to 22,000 lb).
5. Press edit .
6. Enter vehicle TARE (empty) weight recorded in step 1.
7. Press .
8. Press again to return to MENU screen.