A&D GP-100KS User Manual

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9
3. PRECAUTIONS 
To get the optimum performance from the balance and acquire accurate weighing data, note the 
following: 
 
3-1 Before Use 
 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 which 
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. 
  Plug in 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 12 hours to allow 
the balance to reach equilibrium with the ambient 
temperature, and then perform calibration before use.   
Caution 
Please confirm that the AC adapter type is correct for your local voltage and receptacle type. 
Do not install the balance where flammable or corrosive gas is present. 
 
3-2 During Use 
 
Discharge static electricity from the material to be 
weighed (hereinafter referred to as sample). When a 
sample could have a static charge, the weighing data 
is influenced. Try to keep the ambient humidity above 
45%RH or use the metal shield case.