PUMP TOTALIZER APPLICATION
This type of application is an extension of the pump control application, accessed by
setting P- 2 = 4. Unlike a pump application in which the mode of the measurement
(P-2) can be of material or space, the pump volume totalizer mode is a measurement
of the liquid volume pumped with reference to the material level.
The material level must be converted to volume using volume conversion parameters
P-34, 35 and 36 and / or convert display P-37. The MultiRanger Plus in pump-down,
will record the volume being pumped out. Alternately, the MultiRanger Plus will record
the volume pumped in if the pump setpoints are set for pump-up.
When the pump(s) is OFF, the MultiRanger Plus estimates the volume of the inflow or
discharge by recording the rate at which the liquid level changes. When the pump(s)
is operating, the estimated inflow or discharge volume may be added (P-33 = 1) to the
pumped volume total, as in batch processing.
When the pump(s) stops, the pumped volume of the previous pump cycle is added to
the total volume pumped in the 8 digit totalizer.
The totalizer contents are stored in RAM and will be lost in the event of a power
failure. However, after every 1 hour of continuous operation, the totalizer contents are
stored in the EEPROM. Thus, after a power failure, the totalizer will be loaded with
the last value stored.
In the event of a loss of echo, the totalizer will continue being incremented by the
flowrate established from the last valid echo. The totalizer will stop being incremented
and hold its last updated value when in the program mode or if the fail-safe timer
expires ("LOE" is displayed"). Once the totalizer has been filled (99999999), it will
automatically reset itself to zero and resume totalling.
The MultiRanger Plus can be programmed (P-39) to normally display one of the
following readings :
» enter option "0", hold last reading selected in run mode
» enter option "1", high total: 4 highest digits of the 8 digit totalizer
» enter option "2", low total: 4 lowest digits of the 8 digit totalizer
» enter option "5", level
It must be noted that only half of the totalizer digits
can be accessed or viewed at one time.
PL-443 6 – 11
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