Calibration using an external weight – A&D Weighing BM-20 User Manual
Page 36
34
BM
series
8.5.
Calibration Using An External Weight
This function calibrates the balance using an external weight.
1 Connect the AC adapter and warm up the balance for at
least one hour with nothing on the weighing pan.
2 Press and hold the
CAL
key until
Calout
is
displayed, then release the key.
3 When
displaying
Cal 0
, proceed as follows:
If you want to change the calibration mass, press
the
RANGE
key and proceed to step 4.
If you use the calibration mass value stored in
the balance, proceed to step 5.
4 Specify the calibration mass value as follows:
RANGE
key..........The key to switch blinking figures.
RE-ZERO
(+)key.....The keys to select the calibration mass or
adjust the mass value. Refer to page 31.
key............The key to store the new mass value.
Even if the AC adapter is removed, the
data is maintained in non-volatile memory.
CAL
key ...............The key to cancel the operation and
return to
Cal 0
.
5 Confirm that there is nothing on the pan and press the
key. The balance measures the zero point.
Do not allow vibration or drafts to affect the balance.
The balance displays the calibration mass value.
6 Place the displayed calibration weight on the pan and press
the
key. The balance measures the calibration mass.
Do not allow vibration or drafts to affect the balance.
7
end
is displayed.
Remove the weight from the pan.
8 If GLP output is set,
glp
is displayed and the calibration
report is output and stored. Refer to "GLP output (
info
)" and
"Data memory (
data
)" of the function table, "
11.2. GLP
Report" and "12. Data Memory".
9 The balance will automatically return to the weighing mode.
10 Place the calibration weight on the pan and confirm that the
value displayed is correct. If it is not within the range, check
the ambient conditions such as breeze and vibration also
check the weighing pan. Then, repeat steps 1 to 10.
MODE
(-)key
Press and hold
Release
Select a type
Place the weight
Remove the weight
Specify detail of value
GLP output
Example:
New value
100.0012 g
New mass
value