A&D GR Series GR-300 - Manual (Page 23)

4^ Calibration Using an External Weight
This function calibrates the balance using an external weight. The weight
to be used for calibration is called "the calibration weight". The weight which
you have is called "the external weight".
Operation
Step 1 Connectthe AC adapter and warm up the balance
for at least one hour with nothing on the pan.
o nnrinn
u.uuuu g
Step 2 Press and hold the CAL key until displaying
r n 1
L ‘ 1 L Û U L
and then release the key.
Press and hold the key
r n I
L ' I L
RE-ZERO key
RANGEi key
PRINT key
CAL key
The key to set the value of the
digit selected.
The key to select the digitto change
value.
The key to store a new weight
value and return to step 3.
The key to cancel this change
and return to step 3.
Product Usable weight Adjustable range
GR-120 lOOg, 50g
GR-200 200g, 100g -f15.9 mg ~ -15.0 mg
GR-300 200g, 300g
GR-202 200g, 100g
1 ro. . ' <70 [ fit Out
(J
Note Digits cyclically change using the ¡RE-ZERO key.
ex. 0mg-^-h15mg-^-15mg-^0mg
Step 5 Confirm that there is nothing on the pan and press
the jPRÎÏ^ key. The balance measures the zero-
point. Prevent vibration and drafts from affecting
the balance.
■Release the key
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Step 3 The balance displays
□ If you want to change the calibration weight
value, proceed to step 4.
□ If you use the stored calibration weight value
in the balance, proceed to step 5.
Step 4 Press the ¡RANGE | key and adjust the calibration
weight value using the following keys.
r 01 n
L riL LI
ex. calibration weight
value = 200.0017g
Initial calibration
weight value is
200.0000g at
GR-200.
r o> n
LUL U
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7. Calibration Page 22 Adapting to environment