User manual - WEIGHT METER SWI-94
“ALArmS”
- this parameter defines the relay reaction when some critical situations
occurs:
“noCHAn”
- relay do not change his state,
“on”
- relay will be turned on,
“oFF”
- relay will be turned off.
If parameter
“modE”
is set to
“on”
,
“oFF”
,
“in”
or
“Out”
the “critical situation”
means that
nominal input range
is exceeded.
If parameter
“modE”
is set to
“modbuS”
, the “critical situation” means
communication delay (when no data is received) longer than
“mbtimE”
parameter
(see description:
“rS-485” menu
).
•
If option “
noCHAn
” is selected for
“ALArmS”
parameter, behaviour of the relay
may depend on
“
FiLtEr
” parameter
in some cases
. If “
FiLtEr
” is set to big value
and the input signal drops, result value of the measure will change slow, causes
of turning on or off relay due to thresholds values. The critical situation is slowly
detected, so it is impossible to predict the relay state in that situations.
•
If parameter „
AL
” = „
on
”, the relay will be turned on in the critical situations,
even if his parameter
“modE”
=
”noAC”.
7.3.2.
“bEEPEr” menu
This menu contains options connected with acoustic signal :
"
AL
”
- if this parameter is set to “
on
”, any critical situation causes by acoustic signal
"
r1”
- if this parameter is set to “
on
”, activation of relay
R1
causes by acoustic signal
"
r2
"
- if this parameter is set to “
on
”, activation of relay
R2
causes by acoustic signal
Acoustic signal (turned on by e.g. relay ) can be turned off by pressing of any
button.
7.3.3.
“CALibr” menu
This menu contains options for measurement input calibration:
”
rESOL
” - display resolution of measurements, relays thresholds, and calibration values.
Available values: 0.01; 0.02; 0.05; 0.1; 0.2; 0.5; 1; 2; 5; 10; 20; 50.
According to practical application circumstances (to get stable measurements) it is
recommended to set
„rESOL”
parameter value according to selected
measurement range. Set such value of
„rESOL”
to ensure that whole number of
measurement divisions do not exceed permissible value (for theoretical calibration
ratio of
„
r LoAd
” / ”
rESOL
” < 10000, similarly while dead weight calibration ratio of
„
LoAd
” / ”
rESOL
” < 10000).
”
rAnGE
” - measurement input range, 2 mV/V or 4 mV/V. Set this range according to
parameter Rated Output (R.O.) of strain bridge.
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