A&D A & D Analytical Balance GH-120/GH-200/GH-300/GH-202/GH-252 - Manual (Page 29)

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8.6.
Calibration Test Using an External Weight
This function tests the weighing accuracy using an external weight.
Calibration test report can be output or stored with "GLP output
( info )" (Calibration test does not perform calibration).
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 CC out is displayed,
then release the key.
3 The balance displays CC 0 .
If the target mass is changed, press the RANGE key and
proceed to step 4. A list of usable weights is on page 23.
If current target mass value is used, proceed to step 5.
4 Specify the target mass value as follows:
RANGE key............The key to switch blinking figures.
RE-ZERO (+)key.......The keys to select the target mass or
adjust the mass value. Refer to page 23.
PRINT 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 CC 0 .
5 Confirm that there is nothing on the pan and press the
PRINT 1
key. The balance measures the zero point and displays the
measured value. Do not allow vibration or drafts to affect the
balance. The balance displays the target mass value.
6 Place the displayed target mass on the pan and press the
1 PRINT key. The balance measures the target mass and
displays the measured value. Do not allow vibration or drafts
to affect the balance.
7 The balance displays
end .
Remove the weight from the pan.
8 The balance displays
glp and outputs or stores "calibration
test report. Refer to "11.2. GLP Report" of the function table
for details.
9 The balance will automatically return to the weighing mode.
Release
Press
and
hold
Select
Place weight
Remove
GLP output
Example:
New weight
100.0012 g
Specify MODE (-)key