Rice Lake OB-350 Loadrunner Series Onboard Weight Indicator - Manual (Page 27)

Calibration 23
7.1.2 Set Zero Calibration
lb
lb
1. Make sure the vehicle is empty and on level ground.

For dump trucks and roll off trucks, raise the body clear of the chassis
approximately three to four degrees.
2. In CAL menu, press to select Zero .
3. Press (OK) .
4. Press cal .
5. Press (OK) to Confirm Ch 1 Zero .
6. Press to return to CAL menu.
7.1.3 Full Span (Net Load) Calibration
lb
lb
lb
lb
lb
lb
62000
lb
1. Load vehicle to its legal max and record GROSS weight.
2. Weigh and record the TARE (empty) vehicle.
3. Subtract the TARE (or KERB) weight from the GROSS weight to give
the SPAN (NET) weight.
31900 -12500 =19400 lb SPAN (NET) PAYLOAD
If the vehicle is a tipper, raise the body clear of the chassis.
4. In CAL menu, press to Span .
5. Press (OK) (defaults to 62,000 lb).
6. Press edit.
7. Edit the SPAN (NET) weight, as in steps 1 & 2 above.
8. Press when done.
9. Press cal .
10. Press (OK) to Confirm Ch 1 Span cal .
11. Press twice to return to MENU screen.
Reverse ZERO/ SPAN (For Straight Trucks Only)
The reverse zero/span option allows the weighing system to be first
calibrated when the truck is full (swapping step 3 & 4), discharging its
load then performing calibration zero. You must be in single channel
mode: Ch1 only. See Section 7.1.4.
Note