14
USER MANUAL
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12. Checking the balance
In order to confirm correctness of the balance during its operation, before starting and after finishing every
measurement series it is advised to check weighing accuracy. It can be done by weighing external
calibration weight or other object with exactly known mass.
If exceeding of allowable measurement error is affirmed, the following things should be checked:
-
if the balance stands stable and it is levelled,
-
if the balance is exposed on rapid air blasts, vibrations, rapid temperature changes or air humidity,
-
if the balance is not affected directly by heat source, electromagnetic radiation or magnetic field.
The cause of inaccuracy can be too low temperature of the balance as well, when it was unplugged from
power supply. In this situation leave the balance switched on for several minutes in order to adjust its
internal temperature.
If none of above causes of inaccuracy occurs, calibration with external weight should be performed to the
balance. Recommended external calibration weight (to buy for additional charge) is given in technical data
table. In order to calibrate the balance with external weight in legally verified balances verification seals
should be removed and another legal verification should be performed. In this case it is recommended to
contact authorized service centre.
Calibration with external weight is described in details in chapter 17.1.
13. Connecting the balance to computer or printer
The scale can be equipped with one or two serial interfaces RS232C, USB, LAN or Wi-Fi designed to
cooperate:
-
with computer
–
the scale sends data after pressing
key or after initiation signal from
computer,
-
with printer - sending data after pressing
key or automatically after putting on/off a sample
and measurement stabilization,
-
with label printer
–
after pressing
the scale sends set of instructions for label printer starting
from label number set in special funcion
LabEL
.
Set of send data is set using special function
.
The following data can be send:
-
Header (scale type, Max, d, e, serial number),
-
Operator identification number,
-
Successive printout number (measurement),
-
Identification number or product bar code,
-
Number of pcs (PCS function only),
-
Single detail mass (PCS function only),
-
Nett weight,
-
Tare (package mass),
-
Gross weight,
-
Total mass (Total function only).
The way of sending data and transmission parameters is set using
SErIAL
special function.
