Avery Berkel TB Series, User Instructions

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7 Checkweigher
15
User Instructions for TB/TC Series Balances
7 Checkweigher
The checkweigher unit (part number 70571–644) is a simple
device which indicates if the item being weighed is within two
tolerances. The unit can also be used for checkcounting, see
section 7.4.
7.1 Installation
The unit is simple to install. Just plug the unit into the output port
at the back of the balance and switch on.
Note
Early versions of the TC/TB series cannot be connected to the
checkweigher. Before using a checkweigher with an existing TC
or TB balance check the label on the rear face of the balance.
The balance identity code must contain the numbers 35 or 45, for
example TC060–1 35Z.
7.2 Calculating tolerances
The two tolerances are called UNDER and OVER limits. The
UNDER limit is the lowest acceptable number. The OVER limit is
the highest acceptable number. To enter the limits you must place
components on the pan until the required value is reached.
Pressing
T
enters the value. Pressing
g
g
clears the
previously entered value. These values are stored in the balance.
Example
To weigh an item to
$
10% you must first calculate the UNDER
and OVER limits. If an item weighs 100 grams the UNDER value
is 90 grams and the OVER value is 110 grams.
7.3 Checkweighing
1. Switch on the balance with the checkweigher connected.
The balance display shows the last stored UNDER value
and a small u to the right of the display.
2. To accept the UNDER value, press
T
and go to
step 6.