KERN & SOHN AET 200-4NM - Manual (Page 25)

AET_/PET_/ILT_NM-BA-e-1410 25
9.5. Tarring
In order to determine net weight of a weighed object, place object’s container
(packaging) on balance’s weighing pan, and on stabilization of measurement
result press key. The display should indicate mass equal to zero and
symbols: Net and . On taking off the weighed load and its packaging from
instrument’s weighing pan, the display indicates sum of total tarred mass with
minus sign.
The software also enables assigning tare value to a product from a database.
Then, on product selection from a database, the software automatically
uploads data on tare value for the specific product.
Caution:
Tarring negative values is impossible. On tarring negative values the balance
responds with an error message. In such case zero balance’s indication and repeat
tarring procedure.
Manual tare determination
Procedure:
• While in optional mode press quick access key ,
• Which opens numeric keyboard on balance’s display,
• Using numeric keys insert desired tare mass and press key,
• The balance returns to weighing mode, and the display indicates inserted
tare value with minus “–“ sign.
Deleting tare
The tare value indicated on balance’s display can be deleted by pressing ZERO
key on balance’s front panel, or using programmable function key <Deactivate
tare>
PROCEDURE 1 – on taking the tarred load off balance's weighing pan
• Press ZERO key
• The NET marker is deleted, and new zero point of the balance is determined
PROCEDURE 2 – when the tarred load in on balance’s weighing pan
• Press ZERO key
• The NET marker is deleted, and new zero point of the balance is determined
• If tare value exceeds 2% of balance’s maximal capacity, the display
indicates error message –Err- (forbidden operation)
PROCEDURE 3 - when the tarred load in on balance’s weighing pan or on
taking the tarred load off balance's weighing pan
• Press programmable key <Deactivate tare>
• The NET marker is deleted,
• The display indicates tare value
• Press <Restore tare> key to restore the last tare value
9.6. Use of air buoyancy correction factor