- EXCELL PRECISION Weighing Scale User Manual
 EXCELL PRECISION CO., LTD. 
Dolphin 9903 V 1.1                                          SME300000041 
6
CHAPTER 3 KEYBOARD FUNCTION 
1.  : Pressed to switch the scale off 
2.  :  When the scale is off, pressed to switch it on. 
When the scale is on, if the weight is within the zero range, this key is pressed 
to re-zero the display or cancel the tare mode. 
4 Zero range: 
OIML & NTEP: ±2% of full scale; 
Sri Lanka: ±4% of full scale 
3.  :   Pressed to deduct the container weight. 
4.  : Pressed to choose the unit weight “kg” or “lb”. 
5.  :   Net /Gross weight conversion under tare mode. 
UNITS
TARE 
OFF 
ON 
ZERO 
NET 
GROSS 










