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ZX-650

IV. Operation

1. 

Place the scale on a flat, level surface and press the 

ON/OFF 

key to turn the scale on.

2.  Once the start-up process completes and the scale 

goes to zero you are ready to weigh.

3.  Place the quantity to be weighed onto the weighing 

platform.

4.  Wait a couple seconds for the display to stabilize 

before taking a weight reading.

V.  Changing the Unit of Measure

1.  Press the 

MODE

 key to change the scales displayed 

unit of measure.

2.  If the scale is turned off then back on, it will default 

to the last unit used.

• 

ZX-650 Units:

 g (gram)   oz (ounce)   ozt (troy 

ounce)   dwt (pennyweight) 

VI. Using the Tare Feature

You can use this scale’s tare feature to subtract the weight 

of an empty container or vessel for net weight determination. 

NOTE: The weight of the container will subtract from the 

available capacity. 

1.  Place the empty container or vessel on the weighing 

platform.

2.  Press the 

TARE

 key once. The display will then 

reset to zero. If the container is removed, it’s weight 

will be displayed as a negative number.

3. 

You may now fill the container with the quantity to 

be weighed. The display will show the net weight of 

the contents.

4.  To return to normal weight display (gross weight), 

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