User manual - WEIGHT METER SWI-94
6.
PRINCIPLE OF OPERATION
After turning the power supply on, device ID and software version are showed on the
display, next the controller goes to the measurement mode.
6.1.
MEASUREMENT MODE
While device is in measurement mode LED display shows gross or net weight. Net
weight presentation mode is signalized by LED marked „
NET
”. If the weight is constant while
10 successive measurements then it is signalized by LED marked „
><
” (stable measurement).
LED diode marked „
>0<
” signalizes that result of measurement is zero.
Zeroing of the scale is possible by pressing [
>0<
] button, but only when current weight
do not exceeds 2% of full range, and measurement is stable ( LED „
><
” is lighted). Pressing
of [
T
] button causes storing of current value as tare weight, after that device goes to
displaying net weight. Pressing of [
B/N
] button causes alternative change of presentation
mode ( gross - net weight).
Device recalculates measurement results according to calibration factors entered by
a user using „
CALibr
” menu.
Nominal measurement range
is 2 mV/V or 4 mV/V (depend
on value of
„rAnGE”
parameter in „
CALibr
” menu).
If the result of measurement exceeds the
nominal measurement range
, a warning
” Hi ”
or
” Lo ”
is displayed in place of measurement value,
depends on exceeded value. All
other warnings are displayed in numerical or text form (see chapter
SIGNALISATION OF
ERRORS
).
If the measurement value do not exceeds nominal measurement range but
displayed value exceeds range -99999 ÷ 999999, the warning
”
-OvEr-
”
is displayed
rather than the calculated result.
In the measurement mode user can check main thresholds values. After pressing
[ENTER]
button, name of the threshold
”rELPr1”
and his value will be displayed on the
display in alternating mode. If
[^]
or
[v]
will be pressed in 5 sec again, the next threshold will
be displayed, else the device comes back to the measurement mode. If a
free access
is
enabled (see description of
”SECur” menu
), user can change the value of particular
threshold pressing button
[ENTER]
once again(see:
PARAMETERS EDITION
).
All accessible parameters can be changed by entering the menu (see:
DEVICE
PROGRAMMING
). Use the local keyboard or the remote controller to do it. (Note: all
parameters can be remote changed via RS-485 interface).
Configuration of the device (via menu or RS 485 interface)
do not stops measures
.
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