NOVUS n1500lc - Manual (Page 9)

9
9.2 ALARM CYCLE
fV.al1
fV.al2
fV.al3
fV.al4
Alarm Function – Defines the alarm functions: 1, 2, 3 or 4, as defined in item
4.1.
oFF : Alarm is inactive
iErr
: Broken or shorted sensor.
Lo : Minimum value
Ki : Maximum value
DiFL : Minimum differential
DiFH : Maximum differential
DiF f : Differential out of range
DiF d : Differential within range
Ky.al1
Ky.al2
Ky.al3
ky.al4
Alarm hysteresis
Defines the difference between the value at which the alarm is turned on and
the value at which it is turned off.
Bl.al1
Bl.al2
Bl.al3
bl.al4
Initial blocking function
It makes possible to prevent alarms activation at the process start, when all
the system is powered. See item 4.3.
Al1t1
Al1t2
Al2t1
Al2t2
Al3t1
Al3t2
Al4t1
Al4t2
Alarm Timer:
Prompts that define time T1 and T2, in seconds, shown in Table 3. They allow
the user to delay the alarm triggering, to activate alarms momentarily or
sequentially.
To disable timer function, just set zero for T1 and T2.
9.3 FUNCTION CYCLE
f.fvnc F Key function – Makes possible to define the F key function. Available
functions:
oFF - Key not used;
kold - Hold PV
RESEt - Resets maximum and minimum values
PkoLd - Peak Hold
XI -
Displays maximum
LO - Displays minimum
ZERO - Automatic zero
These functions are described in item 5.2.
Dig.in Digital input function – Makes possible to define the digital input function.
Functions available are the same as the ones available for the F key, except for
the Zero function, replaced by the Tare function.
oFF - kold - rESEt - PkoLd – XI - LO - tare
These functions are described in item 5.2.
filtr Input digital filter - It is used to reduce instability of the measured value.
Adjustable between 0 and 60. 0 when the filter is off and 60 for the maximum
filtering. The higher the filter value, the lower is the measured value response.
ofset Displayed offset – This is a value added to the measured value to shift PV
indication. The offset is shown in the programmed unit. For °F indications the
zero reference is at 32°F.
En A.z. Enables auto zero - Enables the auto-zero function of the indication. The
indication will turn to zero if the input value is within the programmed range in AZ
LEV for 3 seconds. Auto-zero occurs when the indication is relatively stable. It is
used to eliminate the influence of interference or small deviations in the zero of a
scale.
A.Z.rAn Maximum level for zero - Maximum level of the scale zero deviation, where
auto-zero is activated. This value can be programmed up to 2% of the end of
scale.