A&D AD-4212B-101/102/201/301 User Manual

 

13

 Magnetic material 

The balance uses a strong magnet as part of the balance assembly, so use much care when 
weighing magnetic materials. 

  Place a non-magnetic object such as aluminum or brass between the sample and the 

balance, also keep an appropriate distance between them while weighing. 

 

  To minimize the affect by electrical noises, earth ground 

the weighing unit and the display unit. 

  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. In addition, a RE-ZERO signal 
can be sent using external contact input/RS-232C 
command. 

  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. 

  Calibrate the balance, using a calibration weight, periodically. 

  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. 

  Avoid dust and water so that the balance weighs correctly. Protect the internal parts from liquid 

spills and excessive dust. 

 

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

is on (refer to “4 DISPLAY SYMBOLS AND KEY OPERATION”). This is a normal state and 
does not harm the balance. For accurate weighing, plug in the AC adapter and warm up the 
balance for the appropriate duration before use.