A&D GP-100K User Manual

 

 10

 This balance uses a strong magnet as part of the 

balance assembly, so please use caution when 
weighing magnetic materials such as iron. If there is a 
problem, use the underhook on the bottom of the 
balance to suspend the material away from the 
influence of the magnet.

 

  Cancel the temperature difference between a sample 

and the environment. When a sample is warmer 
(cooler) than the ambient temperature, the sample will 
be lighter (heavier) than the true weight. This error is 
due to a rising (falling) draft around the sample.

 

  Make each weighing gently and quickly to avoid errors 

due to changes in the environmental conditions.

 

 Do not drop things upon the weighing pan, or place a 

sample on the pan that is beyond the balance weighing 
capacity. Place a sample in the center of the weighing pan.

 

 Do not use a sharp instrument such as a pencil to 

press the keys. Use your finger only.

 

 Press the RE-ZERO key before each weighing to 

prevent possible errors. 

 Calibrate the balance periodically so as to cancel 

possible errors.

 

  Take into consideration the affect of air buoyancy on a 

sample when more accuracy is required. 

 Keep the balance interior free of dust and foreign 

materials. 

 

  Avoid mechanical shock to the balance. 

  Do not disassemble the balance. Contact the local A&D dealer if the balance needs service or repair. 

  Do not use organic solvents to clean the balance. Clean the balance with a lint free cloth that 

is moistened with warm water and a mild detergent. 

  Do not allow the balance to be immersed in water. Even though the balance complies with 

IP65 (Dust-tight and Protected Against Water Jets), the balance will not withstand being 
completely immersed in water. 

 

  Do not remove the AC adapter while the internal mass is in motion, for example, right after the 

AC adapter is connected, or during calibration using the internal mass.   

  If the AC adapter is removed under the conditions described above, the internal mass will be 

left unsecured, that may cause mechanical damage when the balance is moved. 

  Before removing the AC adapter, press the ON:OFF key and confirm that zero is displayed. 

  When the AC adapter is connected, the balance is in the standby mode if the standby indicator 

is on (refer to “3-5 Display Symbols and Key Operation”). This is a normal state and does not 
harm the balance. For accurate weighing, keep the AC adapter connected to the balance and AC 
power unless the balance is not to be used for a long period of time.