The principle of electrical single pan balance is constant load balance it has two end one has the constant beam and another end has pan and the standard ring weights. We add some load to the pan, the equilibrium state is changed and to restore back the equilibrium state, corresponding ring weights must be relocated to get the original balance.
|Weighing Principle||Substitution of Weights|
|Knives & Bearing||Agate|
|Bulb||6.2V, 4.5 W|
|Power Supply||230 V AC|
|Battery Operation||9V DC|