NOSHOK 2100 Series Field Upgradeable Dual Input Process Indicator - Manual (Page 18)

18
-19.999
Locut
TOTALIZER LOW CUT VALUE*
-19999
to
99999
A low cut value disables Totalizer when the Input Display value falls below
the value programmed.
NO
p-up
TOTALIZER POWER UP RESET
Reset totalizer
Do not reset totalizer
yEs
NO
The Totalizer can be reset to zero on each meter power-up by setting this
parameter to reset.
TOTALIZER HIGH ORDER DISPLAY
When the total exceeds 5 digits, the front panel annunciator flashes (if
assigned to A, B, or C display). In this case, the meter continues to totalize up
to a 9 digit value. The high order 4 digits and the low order 5 digits of the total
are displayed alternately. The letter “
h
” denotes the high order display.
TOTALIZER BATCHING
The Totalizer Time Base and scale factor are overridden when a user input or
function key is programmed for store batch (
bAt
). In this mode, when the user
input or function key is activated, the Input Display reading is one time added
to the Totalizer (batch). The Totalizer retains a running sum of each batch
operation until the Totalizer is reset. This is useful in weighing operations, when
the value to be added is not based on time but after a filling event.
TOTALIZER USING TIME BASE
Totalizer accumulates as defined by:
Input Display x Totalizer Scale Factor
Totalizer Time Base
Where:
Input Display - the present input reading
Totalizer Scale Factor - 0.001 to 65.000
Totalizer Time Base - (the division factor of
tbASE
)
Example: The input reading is at a constant rate of 10.0 gallons per minute. The
Totalizer is used to determine how many gallons in tenths has flowed.
Because the Input Display and Totalizer are both in tenths of gallons, the
Totalizer Scale Factor is 1. With gallons per minute, the Totalizer Time Base
is minutes (60). By placing these values in the equation, the Totalizer will
accumulate every second as follows:
10.0 x 1.000 = 0.1667 gallon accumulates each second
60
This results in:
10.0 gallons accumulates each minute
600.0 gallons accumulates each hour
TOTALIZER SCALE FACTOR CALCULATION EXAMPLES
1. When changing the Totalizer Decimal Point (
dECPt
) location from the
Input Display Decimal Point (
dECPt
), the required Totalizer Scale Factor is
multiplied by a power of ten.
Example: Input (
dECPt
) = 0.0 Input (
dECPt
) = 0.00
(x = Totalizer display is round by tens or hundreds)
2. To obtain an average reading within a controlled time frame, the selected
Totalizer Time Base is divided by the given time period expressed in the same
timing units.
Example: Average flow rate per hour in a 4 hour period, the scale factor
would be 0.250. To achieve a controlled time frame, connect an external timer
to a user input programmed for
rtot2
. The timer will control the start (reset)
and the stopping (hold) of the totalizer.
.001 x10
.01 0
.1 0.0
1 0.00
10 0.000
Scale
Factor
Totalizer
dECPt
Scale
Factor
0.00 10
0.0 1
0 .1
x10 .01
x100 .001
Totalizer
dECPt
* The decimal point position is dependent on the selection made in the
“Totalizer Decimal Point” parameter.