A&D EJ-123, Instruction Manual

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7. CALIBRATION
This function adjusts the balance for accurate weighing.
Perform calibration in the following cases:
When the balance is first used.
When the balance has been moved.
For regular calibration.
7.1.
Calibration Using a Weight
Prepare a calibration weight (sold separately) in advance.
1. Warm up the balance for at least half an hour with nothing
on the pan.
2. Press and hold the calibration (CAL) switch until
Cal appears, and release the switch.
3. The balance displays
Cal 0
.
To change the calibration weight value, proceed to step 4.
To use the calibration weight value in the balance memory,
proceed to step 5.
4. Press the SAMPLE key. The display shows the
calibration weight value in “grams” that is stored in the
balance. Use the following keys to change the value.
SAMPLE key ...... To select the digit to be changed (flashing).
RE-ZERO key .... To set the value of the digit selected.
PRINT key ........... To store the value and return to step 3.
UNITS key ........... To cancel the value and return to step 3.
Use a calibration weight more than 2/3 of the capacity.
5. At step 3, press the PRINT key to weigh the
zero-point value. Do not touch the pan during weighing.
When the zero calibration is completed, the display will
show the calibration weight value.
To perform the zero calibration only and finish the
procedure, press the UNITS key. After displaying
end
, the balance turns off.
6. Place a calibration weight with the same value as displayed
on the pan.
Press the PRINT key to weigh it. Do not touch the pan
during weighing.
Calibration (CAL) switch
Calibration (CAL) switch cover
Cal
Cal 0
0100.000
Cal 0
Set the weight using
the relevant keys
Release the CAL switch
Press and hold
the CAL switch
With nothing
on the pan
To store
Calibration
weight
Cal 0
100.000