Operating instructions

The “Percent Weighing” application

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9.4.2 Percent Weighing to a Target Value

The “Percent Weighing” application provides you with additional functions to make weighing to a speciﬁed target value easier. In the

description which follows, it is assumed that the reference for the percent weighing has already been determined.

Requirements

Before you can input a target value and the associated tolerances, the function keys

shown at left must be activated (section 9.3.2). If you want the speciﬁed values to be

shown in the display, you can also activate the information ﬁelds with the same name

(section 9.3.3).

Performing a Percent Weighing to a Target Value

Press the function key “Nominal”. Type in the desired target value (e.g. 130 %). Check

the weighing unit which is displayed to the right of the target value. Touching the weigh-

ing unit displays the available units, which include “%” (the “Percent” unit only becomes

available after the reference has been determined).

Note: The units are not converted automatically, so once you have input a value in a

particular unit, the value does not change even if you change the unit.

When you have input the value, press “OK” to activate the target value.

You can use the two function keys “+Tolerance” and “–Tolerance” to specify the accuracy

with which you want to weigh. The input window is similar to the one for the target value.

Both tolerance values are set to 2.5 % at the factory. Instead of a percentage value, you

can also enter a unit of your choice (e.g. “g”). When you have entered the respective value,

press “OK” to activate the tolerance. Percentage weighings which lie outside the tolerances

are specially marked in the report of individual values with “>T” or “<T”.

When you have input the target value and the tolerances, tolerance marks for the graphical

weighing aid (“SmartTrac”) appear in the display. The tolerance marks make weighing

to the target value easier for you. You can weigh your weighing sample roughly until the

lower tolerance value is reached, and then if necessary dispense ﬁnely until the target

value is reached.

Performing the Percent Weighing

After you have determined the reference, place the weighing sample on the pan. The

weight of the weighing sample as a percentage of the reference weight appears in the

results display.

Note: If instead of the percentage weight you want to know the absolute weight of the

weighing sample, touch the “%” unit and select the desired weighing unit.

You can print out the result of the percent weighing with the «F» key. You will ﬁnd an

example of a report in section 9.4.3.