USER MANUAL
13
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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 15.3.
13. Connecting the balance to computer or printer
The balance may send data to a computer or a printer via RS232C interface.
When cooperating with the balance, a
computer should be equipped with software
that allows receiving data from the balance.
AXIS offers computer software to cooperate
with balances, available on
website. Free software for basic operations
with the balance can be found there.
The balance sends weighing result according to
SEndInG
option in function for
setting serial interface parameters (
rS-232C
):
after initialising signal from a computer,
automatically after loading a weight on a pan and result stabilisation (
Auto
),
after pressing
key and result stabilisation (
b.P Stb
),
after pressing
key and without result stabilisation (
butt.P
),
continuously about 10 times per second (
cont.
).
RxD (receiver)
TxD (transmitter)
GND
Case
RS232C
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