NOSHOK 2100 Series Field Upgradeable Dual Input Process Indicator - Manual (Page 17)

17
0.001
C rnd
CALCULATION ROUNDING*
1.000
conSt
CALCULATION CONSTANT VALUE
The constant value is used in the Calculation Function formulas to provide
offsetting or scaling capabilities. For the C+A+b, C-A-b, and C+A-b
calculation functions, the Constant decimal point matches that Calculation
Decimal point position.
Rounding selections other than one, cause the Calculation Display to ‘round’ to
the nearest rounding increment selected (ie. rounding of ‘0.005’ causes 0.121 to
round to 0.120 and 0.124 to round to 125). Rounding starts at the least significant
digit of the Calculation Display. Remaining parameter entries (scaling point
values, setpoint values, etc.) are not automatically adjusted to this display rounding
selection. The displayed decimal point reflects that programmed in
C dP
.
20
1
50
2
100
5 10
1.0
C FLt
CALCULATION FILTER SETTING
0.0
to
25.0
The calculation filter setting is a time constant expressed in tenths of a
second. The filter settles to 99% of the final display value within approximately
3 time constants. This is an Adaptive Digital Filter which is designed to steady
the Calculation Display reading. A value of ‘0’ disables filtering.
0.010
C bMd
CALCULATION FILTER BAND*
The digital filter will adapt to variations in the calculation filter. When the
variation exceeds the calculation filter band value, the digital filter disengages.
When the variation becomes less than the band value, the filter engages again.
This allows for a stable readout, but permits the display to settle rapidly after a
large process change. The value of the band is in display units, independent of
the Display Decimal Point position. A band setting of ‘0’ keeps the digital filter
permanently engaged.
0
to
250
display units
5.5 MODULE 5 - T
OTALIZER
(I
NTEGRATOR
) P
ARAMETERS
( 5-tOt )
PARAMETER MENU
0.000
dECPt
TOTALIZER DECIMAL POINT*
For most applications, this should match the decimal point position of the
meter value selected in the totalizer assignment. If a different location is
desired, refer to Totalizer Scale Factor.
0.000 0.0000 0.00 0.0
0
MIN
tbasE
TOTALIZER TIME BASE
This is the time base used in Totalizer accumulations. If the Totalizer is being
accumulated through a user input programmed for Batch, then this parameter
does not apply.
sEC
- seconds (÷ 1)
day
- days (÷ 86400)
MIN
- minutes (÷ 60)
The totalizer accumulates (integrates) the relative Input value using one of
two modes. The first is using a time base. This can be used to provide an
indication of total flow, usage or consumption over time. The second is through
a user input or function key programmed for Batch (one time add on demand).
This can be used for weighing applications where accumulation is based on a
completed event. If the Totalizer is not needed, its display can be locked-out and
this module can be skipped during programming.
a-rEL
ASIN
TOTALIZER ASSIGNMENT
This parameter determines which value is to be totalized.
A-rEL b-rEL CALC
1.000
SCFAC
TOTALIZER SCALE FACTOR*
For most applications, the Totalizer reflects the same decimal point location
and engineering units as the assigned Input Display. In these cases, the Totalizer
Scale Factor is 1.000. The Totalizer Scale Factor can be used to scale the
Totalizer to a different value than the Input Display. Common possibilities are:
1. Changing decimal point location (example tenths to whole)
2. Average over a controlled time frame.
Details on calculating the scale factor are shown later.
If the Totalizer is being accumulated through a user input programmed for
Batch, then this parameter does not apply.
0.001
to
65.000
* The decimal point position is dependent on the selection made in the
“Calculation Decimal Point” parameter.
hour
- hours (ч 3600)