Refco REFSCALE-S Manual De Instrucciones página 15

6.1 Functions
On / Off / Lighting
Press and hold for 2 seconds to switch on the device.
Long press to switch the device off.
The backlight can be turned on or off by pressing
briefly.
Set Tare
Tare / 0.00
Resets the scale to zero, regardless of the weight. This function is
used, for example, to subtract the empty cylinder weight.
Net
When taring the scale with a weight on the platform, "Net"
appears on the display.
By increasing the number of filled/emptied cylinders, while
using the Hold function, the Net display also increases. This is
possible up to Net 9. Then it starts again with Net 1.
ZERO
Resets the scale to zero if the weight display deviates from zero
by a maximum of 100 grams. This function is used if a small
deviation is displayed when the scale is switched on.
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Instruction Manual