Blue-White Sonic-Pro Hybrid Ultrasonic Flowmeters - Manual (Page 58)

Page 58 Sonic-Pro
Industries, Ltd. Industries, Ltd.
ProSeries
by Blue-White Ind.
TM
A batch can be canceled (aborted) as follows:
! Interrupt the batch as described above.
! While the batch is stopped (the relay is de-energized), use the or
soft buttons to navigate to and highlight the Total this Batch: status line. The
CLEAR soft button replaces the RESUM soft button.
! Press the CLEAR soft button.
! The value of Total this Batch: is cleared to zero.
! All lines are de-selected and the START soft button returns.
! When the START soft button is next pressed, will dispense and the
Current Batch #: value increases by one. The cancelled batch is not re-dispensed.
The flow measured before it was cancelled is not backed out of Total all Batches:.
Because flow information is only computed by the flowmeter at the configured display
update interval, the volume dispensed in a batch will typically overshoot the configured
Batch Amount. The relay is de-energized when the measured total equals or exceeds the
batch volume. The degree of overshoot depends on the batch size, the flow rate and the
update interval. You should not configure long update intervals when dispensing small
batches from a high flow rate, as in this situation the overshoot could be a significant
fraction of the batch size.
If the Batch Start type is configured as AUTO, then operation is as follows:
Immediately upon entering Run Mode, the flowmeter accumulates the volume of fluid
flowing in two totalizers associated with the specific Relay Channel. If the relay
channel is brought onto the display (using the RELAY soft button), the totals are
displayed to the right of the labels Total this Batch: and Total all Batches: and the
values will be seen to advance. However, the channel will operate in the manner described
here whether it is on the display or not.
the next batch
З И
! The relay channel Status: is indicated
as ACTIVE.
! When the Total this Batch: value
reaches the Batch Amount: value, the
Current Batch #: value increases by
one, the Total this Batch: value clears
to zero and the relay is energized. Flow
is expected to continue (in this mode,
flow is not controlled by the relay), so
Total this Batch: immediately starts
increasing again and Total all Batches:
continues to increase without a break.
! After the relay has been energized for
the number of seconds shown in the
Relay Timer: field, it de-energizes
(again, this is not expected to influence
the fluid flow).
This continues indefinitely (unless the STOP soft button is pressed). Each time the Total
this Batch: totalizer reaches Batch Amount:, it is cleared, Current Batch #: advances and
the relay is energized for the time Relay Timer:.
In this mode of Process Control, the flowmeter is partitioning the flow in the pipe into
batches of a defined amount. Within each batch, it displays the total flow so far for that
batch. It counts the batches. At the end of each batch, the relay energizes for a defined
time period and then de-energizes. An example of what the energized relay might do is to
switch power to a pump or open a valve that results in some other fluid being injected
into the measured fluid stream.
8.2.2
Auto Batch
Start Type
EDIT З И RELAY STOP
Relay #1 Monitor: TOTAL
Status: ACTIVE
Batch Amount:
Current Batch #:
Batch Start:
Total this Batch:
5000
32
3296
AUTO
2 T 3.25 in. [ ¢¢¢£] 1480
Relay Timer: 3
156824526 Total all Batches: