Installing The Balance; Precautions; Before Use - A&D GF-30K Instruction Manual

2-1. Installing The Balance

Install the balance as follows:
1 Refer to "3. Precautions" for installing the balance.
2 Install the pan support, weighing pan and draft gate.
Refer to the previous page.
3 Adjust the leveling feet to level the balance.
Confirm it using the bubble spirit level.
4 Confirm that the AC adapter type is correct for the
local voltage and power receptacle type.
5 Connect the AC adapter to the balance firmly. Earth
the balance. Warm up the balance for at least 30
minutes with nothing on the weighing pan.

3. Precautions

To get the optimum performance from the balance and acquire accurate weighing data, note
the following:

3-1. Before Use

The maximum resolution of the precision balance is one million counts. Therefore, there are
tendencies to be influenced by temperature change, air pressure change, vibration and
drafts where the balance is placed.
Install the balance in an environment where the temperature and humidity are not excessive.
The best operating temperature is about 20°C / 68°F at about 50% relative humidity.
Install the balance where it is not exposed to direct sunlight and it is not affected by heaters
or air conditioners.
Install the balance where it is free of dust.
Install the balance away from equipment that produces magnetic fields.
Install the balance in a stable place avoiding vibration and shock. Corners of rooms on the
first floor are best, as they are less prone to vibration.
The weighing table should be solid and free from vibration, drafts and as level as possible.
Level the balance by adjusting the leveling feet and confirm it using the bubble spirit level.
Ensure a stable power source when using the AC adapter.
Connect the AC adapter and warm up the balance for at least 30 minutes.
Calibrate the balance periodically for accurate weighing.
When the balance is installed for the first time or has been moved, warm up the balance for
at least 6 hours to allow the balance to reach equilibrium with the ambient temperature, and
then perform calibration before use.
7
Bubble sprit level
Good No good
Leveling foot
Grounding
(Earth)
To AC adapter