Nokeval 2012 User Manual page 19

used freely, but the Mea settings must be in
ascending order: Mea1 is smaller than Mea2
etc.
If a Lock command is given to a Mea setting
(Mekuwin: L button, user interface: see page
14), the current unscaled reading is copied
to the value of this Mea setting. The
corresponding desired scaled reading can
then be manually entered to the associated
Sca setting. This way the scaling may be
teached.
In/Setup/MeaMin
The smallest acceptable signal in milliamps
or volts. If the signal goes below this, the
reading is considered to indicate fault and
dashes are displayed and all alarms
following this reading are activated.
For example, with a 4-20mA input signal, it is
advisable to set this to 2, so that if the
current loop is broken, the alarms are
activated.
In/Setup/Dec
The number of decimals to be displayed
after the decimal point. If the selected
number does not fit in the display, the
decimals are automatically temporarily
decreased.
If Dec is set negative, no decimals will be
displayed, but the last digits are rounded to
zero. E.g. if Dec=-1, the display will be
rounded to the nearest 10. This affects the
display only.
In/Filter/Lopass
Third order digital lowpass filter, that is used
to reduce noise and fluctuation in the
reading. Set the time constant in seconds –
in that time the filter has passed through
63% of a step change. To disable, set to 0.
In/Filter/Disable
Lowpass filter bypass switch selection. The
options are:
• Off: Not used.
• FP: Front panel * button works as a
bypass switch.
• ExtSw: An external contact connected in
slot A works as a bypass switch.
• Both: Both of the above switches work.
When the selected switch is activated, the
lowpass filter is switched off. Can be used,
when the input signal is changed and the
filtered reading is desired to jump to that.
In/More/Dead
Dead zone around zero. If the absolute value
of the scaled reading is smaller than the
Dead setting, the reading is rounded to zero.
This can be used to get a zero reading in a
weigh even if there is a small tare error.
If Dead is set to 0, only negative readings
are forced to 0. If Dead is set negative (e.g.
-1.0), the function is disabled.
In/More/Hold
Hold switch selection:
• Off: Not used.
• FP: Front panel * button works as a hold
switch.
• ExtSw: An external contact connected in
slot A works as a hold switch.
• Both: Both of the above switches work.
While the hold switch is active, the reading is
locked and keeps the same value.
In/Tare/Act
Tare switch selection:
• Off: Tare function disabled.
• Front panel * button works as a tare
switch.
• ExtSw: An external contact connected in
slot A works as a tare switch.
• Both: Both of the above switches work.
When the tare switch is activated, the current
scaled reading is captured and stored in the
tare value memory. The tare value will then
be subtracted from every reading.
The tare value is stored in an EEPROM
memory and will be retained also when the
meter is powered down.
The tare value is captured and stored only
once when the switch is activated. Keeping
the switch active will not cause successive
tarings.
If this setting is set to Off, the tare value will
not be subtracted from the reading anymore.
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