ratiotec RS 1200 Instruction Manual page 18

Do not mix currencies.
Always turn on with cup support but without coin cup or
weight.
The RS Money Scale does not detect counterfeit money.
Only use the power supply delivered with your money
scale or batteries AAA (IEC type LR03).
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Do not weight more than 1 kg.
Always use on a stable, even surface.
Place objects carefully.
Coin cup can be used to protect the RS Money Scale.