Batch/Sample Total; Totalizer Controls - Siemens SITRANS F Operating Instructions Manual

Section 2

2.6.9 BATCH/SAMPLE TOTAL

The 1010 system maintains a separate totalizer register for Batching or Sampling applications. For
example, if a sample of an oil product needs to be taken once every thousand barrels, the user can set
the flowmeter's relay to trigger an external sampling device at that interval.
Unlike the Flow Total registers, you cannot view this register directly. It is used for relay control only. If
you assign the system relay to this function, a momentary relay pulse occurs whenever the BATCHTOT
register accumulates a specified liquid quantity. You enter the total flow volume required to activate the
relay in the Batch/Sample Total menu cell. The numeric entry must reflect the selected flow total units.
The Totalizer Display Scaling menu cell shows the applicable flow total units. The sign of the Batch/
Sample Total determines positive or negative accumulations.
NOTE: The Batch/Sample Total relay requires the same consideration for exceeding the maxi-
mum pulse rate as the TOTCNT relay (see Total Resolution).
To enter a Batch/Sample Volume:
To activate numeric entry press
Use the numeric keys to type the desired Batch/Sample Total accumulation.
To store data press
TOTALIZER CONTROLS (the "n" in <Fn> = channel number)*
F1
CLEAR
(also clears overflow)
F2
1
F3
F4
F1
NOTOT
(Totalizer Freeze)
F2
2
F3
F4
F1
LAPTOT
(Totalizer snapshot)
F2
3
F3
F4
ENT
Resetting the Totalizer registers clears all total data accu-
mulated during operation.
Note: In Dual-Beam mode, the Totalizer operates only on
the virtual system channel (Ch 3). Therefore in this case,
the CLEAR trigger would be <F3> <1>.
Invoking the NOTOT command disables the Totalizer. To-
talization will not resume until you repeat the Fn and Nu-
meric 2 key sequence. When you activate NOTOT, an N
precedes the TOTAL symbol (i.e., [NTOTAL]) on the LCD
Screen.
The LAPTOT command freezes the Totalizer screen dis-
play. However, the flow computer will continue to update
its internal registers. The flow computer will show the cur-
rent total when you repeat the F1 - Numeric 3 key sequence.
When you activate LAPTOT, an L precedes the TOTAL
symbol (i.e.,[LTOTAL]) on the LCD Screen.
2-37
1010PFM-3G
(continued)