OPERATING INSTRUCTIONS (CONT)
Weighing an Item
1. Press the ON button to turn on the scale.
2. Place the item onto the weighing surface and the weight will be shown in the display.
3. Record the weight and remove the item.
Tare Instructions
Use the ZERO button to tare/subtract the weight of an object, such as a bowl, from the weight of
the item to be weighed.
1. With the scale on, place the object to be tared on the weighing surface. Wait for the weight
to be displayed, then press the ZERO button. The object can be removed or remain on the
scale. If the object is removed, the display will show "NEG". If the object remains on the
scale the display will show "0.0".
2. After the scale displays "0" or "NEG", place the desired item to be weighed onto the
weighing surface. The scale will display only the weight of the item.
Example: To subtract the weight of a container to determine the weight of a specimen.
1. With the scale on, place a dry, clean container on the weighing surface. The display
will show the weight of the container.
2. Press the ZERO button to tare the weight of the container.
3. With the container on the scale, place the specimen into the container. The scale will
automatically deduct the tared weight of the container and display on the weight of
the specimen.
3. To clear a tared weight, remove all objects from the weighing surface and press the ZERO
button.
Note: If the scale is powered on with an item on the weighing surface, the item will
automatically be tared.
Backlight Function
If there is no weight on the scale and the battery charger is not plugged in, the Backlight will
turn off after approximately 5 minutes of the scale not being used.
Backlight will not function when battery is low.
When the battery charger is connected and the scale is on, the Backlight will automatically
turn on.
Power Timer Function
If there is no weight on the scale and the battery charger is not plugged in, the scale will turn
off after approximately 15 minutes of not being used.
To continue using the scale, press the ON button again.
Low Battery Indicator
If the battery does not have enough charge, the low battery indicator will appear on the
display.
If the message "LOW BAT" appears in the display, the scale will stop functioning. In that
situation, it must be connected to the battery charger to recharge.
Approximate time to fully recharge the battery is 10 hours.
P/N UM3400KL_3401KL_3400KG_3400KG-C REV20200203_web
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