Calibration - A&D GX-203A Instruction Manual

8.Calibration

Since the balance's resolution is high, weighing values may change due to gravity and daily
environmental changes. It is necessary to perform calibration (sensitivity adjustment) with the weight in
order to keep the weighing values from changing even if gravity or the environment changes.
It is recommended that you calibrate if the balance is installed for the first time or relocated, or when
the weighing values change significantly in daily inspection, etc.
Adjustment means to adjust the weighing value of the balance using the reference weight or internal
mass. Calibration is to weigh with the reference weight and compare how much the result deviates
from the reference value. (Adjustment is not performed in calibration.)
Calibration (Sensitivity adjustment)
Auto calibration ------------------------------------------ Automatically adjust the balance using the internal mass
Calibration test using the internal mass ---------- Using the internal mass, adjust the balance with a single
Calibration test using an external weight --------- Using an external mass, adjust the balance with an
Calibration test（Sensitivity calibration）
Calibration test with your own weight -------------- Output the result of checking the accuracy of weighing
*No adjustment is made.
Caution
□ Do not allow vibration or drafts to affect the balance during calibration.
□ To output the data for GLP/GMP using the RS-232C interface, set "GLP/GMP output (info)" of "Data
output (dout)". Refer to "10. Function Table". The time and date can be added to the GLP/GMP report.
If the time or date is not correct, adjust them. Refer to "10-4 Clock and Calendar Function".
□ The calibration and calibration test data can be stored in memory. To store them, set "Data memory
(data)" .
□ The accuracy of the weight used in calibration affects the accuracy of the balance after calibration.
□ Select the mass to be used for calibration and calibration tests from the table below.
depending on the temperature change of the operating
environment or the set time and interval time.（GX-A
series）
touch.
external mass.
using your own weight.
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