8
QB Series Operation Manual
2. The balance displays default weighing mode. If the balance does not show a
0.0
value after the normal
start sequence, press and release the
T
key.
3. The default unit of measure is displayed. To change the unit of measure, see Section 2.2.
4. Gently place the empty container on the platform. The unit of measure indicator begins to flash
indicating the device is registering the weight of the commodity. The value display begins to update.
When the unit of measure indicator ceases flashing, the balance is stable and you can read the weight
value.
5. Press the
T
key. The zero display (
0.00
) appears.
NOTE: The tare value must be
≥
± 4 display divisions from zero. If the tare value is
≤
± 3 divisions from
zero, the device automatically re-establishes a new zero setting before the T button can be activated.
The tare function is not available. To disable this auto-zero feature, please refer to Section 4.0 on
page 15.
6. Gently place the commodity to be weighed in the previously tared container.
7. The unit of measure indicator begins to flash indicating the device is registering the weight of the
commodity.
8. The value display begins to update.
9. Continue adding commodity until the display indicates the desired weight value.
10. When the unit of measure indicator ceases flashing, the device is stable and you can read the weight
value.
11. Without removing the product, press the
T
key.
12. Gently add the next product quantity. Only the net weight of the new commodity is displayed.
13. Repeat steps 11 and 12 as necessary.
NOTE: To view the gross weight of the commodity and the tare, remove the container with its contents
from the weighing platform. The total weight is displayed as a negative number. To return to normal
weighing, replace the container with its contents on the platform.
2.6
Removing the Tare
Use the following steps to remove a tare value from the QB balance:
1. Remove the container (empty or full) from the weighing platform.
2. The display shows the weight of the container and the commodity, if any, as a negative value.
3. Press and release the
T
key.
4. The display returns to a
0.0
value.
2.7
Weighing with the Comparator Function
The QB Series balance is equipped with an onboard comparator function that determines how the weight of a
commodity relates to a pre-determined over/under zone. This feature can help alleviate weighing errors and
speed up the judgement-making process. Rather than reading a weight value and making a mental calculation as
to whether or not the value is acceptable, the operator can simply concentrate on the
OVER
,
UNDER
and
ACCEPT
indicators to determine whether a weight value is acceptable or not. The comparator function is not available in
the counting mode.
NOTE: When the counting mode is activated, the comparator function is automatically deactivated. Should you desire to
return to the comparator function, all of the most recently entered parameters are automatically recalled when the
counting function is deactivated (see Section 2.9 on page 12).
2.7.1
Comparator Function Activation
Prior to using the comparator function, the parameters for the operation must be programmed into the device.
Use the following steps to program the parameters for the comparator function.
1. Power up the balance (see Section 1.7 on page 5).
2. The balance displays default weighing mode. If the balance does not show a
0.0
value after the normal
start sequence, press and release the
T
key.
3. The default unit of measure is displayed. To change the unit of measure, see Section 2.2.
4. Press and hold the
F
key until the word
Func
is displayed.
