Rice Lake OB-350 Loadrunner Series Onboard Weight Indicator - Manual (Page 28)

24 OB-350 Operators Manual
7.1.4 Reverse Zero/Span
lb
lb
lb 62000
Reverse Zero/Span is an alternative to Full Span Calibration. The reverse zero/
span is used to perform a simultaneous zero and span calibration with the
vehicle fully loaded. You must be in single channel mode, ch1only.
1. Weigh and record the vehicle fully loaded.
2. Do a normal span cal 1 (actual span figures not important). See
Section 7.1.2
3. Empty the vehicle, weigh and record the TARE weight.
4. In SPAN menu, check and edit the SPAN figure if required but do
not press ‘cal’.
5. In CAL menu, press to select Zero.
6. Press Z
S
to activate zero/span. Reverse span figure shown top-right
corner of display.
7. Press cal .
8. Press (OK) to confirm channel 1 Zero CAL.
9. Press to return to CAL menu.