Siemens milltronics BW500 Instruction Manual page 145

Span
This is a count value representing the mV signal provided by either the LVDT or Load Cell
at 100% design load.
Span Register
This is the number of span calibrations that have been performed since the last master
reset.
Test Weight
A calibrated weight which will represent a certain load on the scale.
Totalizer
An incremental counter that records the total of material that has been monitored.
Zero Register
Shows the number of zero calibrations that have been performed since the last master
reset.
7ML19985DK03 Milltronics BW500 - INSTRUCTION MANUAL Page 139