Operating instructions

Backweighing
Key identified by: RE S - F
Key identification when a value is stored: RE S
v
- F
The stable backweighed sample, the residue, is stored when you press F
identified in the display by “RE S.”
By setting the appropriate codes in the balance operating menu, you can select the
display modes for two calculated values. Use the w key to toggle between these
two values. The first difference calculated between the net initial sample weight
and the residue is automatically displayed (factory setting “residue in milligrams,”
code 3 8 1). In the display modes “residue in milligrams” and “residue in
percent,” the “Net” symbol indicates that the tare value was subtracted. At the
same time, the identification code shown on the display for the F key changes to
“RE S v” to indicate that a value has been stored in the particular memory.
The calculated value is locked into the display once the sample residue has been
stored. To “unlock” this readout, press RE S v - F or select a different memory
location using the numeric keys and F.
The next memory location is automatically selected with the RE S v - F key
after backweighing. In addition, you can select further memory locations in any
sequence using the numeric keys (known as “random backweighing”).
To backweigh a sample, weighing-in must be completed first. A stored value
of a backweighed sample can be overwritten with a current value anytime after the
corresponding memory location has been selected. To do this, press c.
A backweighing operation is done in reference to the original sample
weight (= 100%).
Important Note for Verified Balances Approved for Use as
Legal Measuring Instruments:
You may not use the calculated value when the balance is being used
as a legal measuring instrument. The display symbol “R2” flashes to identify non-
verified weights (not legal for trade).
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