A&D Weighing BM-20 - Manual (Page 26)

24 BM series
6.4. Percent Mode (%)
The percent mode displays the weight value in percentage compared to a 100% reference mass
and is used for target weighing or checking the sample variance.
Selecting the percent mode
1 Press the MODE key to select the unit % (Percent mode).
If the percent mode can not be selected, refer to "5. Weighing Units".
Storing the 100% reference mass
2 Press the RANGE key to enter the 100% reference mass
storing mode.
3 Place a tare (container) on the weighing pan, if necessary.
Press the RE-ZERO key to cancel the weight (tare).
The balance displays 100 0 % .
4 Place the sample to be set as the 100% reference mass on
the pan or in the container.
5 Press the PRINT key to store the reference mass.
The balance displays 100.00 % .
Note
The decimal point position can be changed by the 100% mass.
BM-252, BM-500
BM-300, BM-200
BM-20, BM-22
100% mass
Minimum
display
100% mass
Minimum
display
0.0100 g to 0.0999 g 1 % 0.00100 g to 0.0099 g 1 %
0.1000 g to 0.9999 g 0.1 % 0.01000 g to 0.0999 g 0.1 %
1.0000 g to 0.01 % 0.10000 g to 0.01 %
If the balance judges that the mass of the sample is too light
(under 0.01g) to be used as a reference, it displays lo .
A 100% reference mass can be stored in the non-volatile
memory and is maintained even if the AC adapter is removed.
6 Remove the sample.
Reading the percentage
7 Place a sample to be compared to the reference mass on
the pan. The displayed percentage is based on the 100%
reference mass.
100% mass
Place sample
Percentage
Weighing pan
Tare
(Container)