Loop Leader PD6620 Series Loop-Powered Flow Rate/Totalizers
Instruction Manual
28
Batch Control (
BATCH
)
Selecting batch control for relay 1 will enable batching
features on the meter. The top display will be
changed to show the total and the bottom display will
be changed to display the preset batch amount. The
function keys will be changed so that F1 starts a
batch, F2 opens the preset menu to allow the preset
value to be changed, and F3 stops the currently run-
ning batch. Enabling batch control for relay 1 will al-
low access to the
BATCH
menu under relay 2 (this
menu does not appear by default).
Batch Control Relay 1
The batch total can be set to count
UP
or
DOWN
. The
batch
MAXIMUM
is the max preset amount that can be
batched. Batching can be set to either manual or au-
tomatic operation (
MANUAL
or
AUTO
). If setting batch-
ing to automatic, a delay before the next batch is
started must be programmed. The
PRESET
amount is
the value at which the batch will stop and can be pro-
grammed up to the value assigned in the
MAXIMUM
menu. An on and off delay may be set for batching re-
lays.
Batch Control Relay 2
The
BATCH
option only appears under relay 2 if
relay 1 has also been set to batch control. The sec-
ond relay may be programmed as a preclose relay or
as another batching relay with its own preset amount.
Stopwatch (
STPWATCH
)
The stopwatch function may be used to manually run
and control a process for a specific time interval up to
99 hrs, 59 min, and 59 seconds. The stopwatch func-
tion may be assigned to any relay. There are three
settings needed to use the function effectively.
1. Assign stopwatch to either top or bottom dis-
play line
2. Assign the open collector or relay to control
the process (on/off)
3. Assign a function key or digital input to
start/stop the stopwatch
Application Example
To maintain consistency of a product, it is necessary
to take and test samples at different times throughout
the day. The stopwatch function is used to open and
close a solenoid valve to know the exact amount of
time needed to complete the desired sample. Once
this is determined, the timer function can be used to
automatically take a sample (batch) based on the time
determined using the stopwatch function.
Setup:
Assign the following to
Stopwatch Function
•
Bottom display line
(see pages 21 & 22 for details how to
change the display)
•
Relay 1
(see pages 23 & 26 how to change Open Col-
lector and or Solid State Relay functionality)
•
F3: Start/Stop
(see pages 34 & 35 for details on how to
change the function keys)
Procedure
•
Press F3 to start the stopwatch; relay 1 turns
on and the process starts running.
•
Press F3 to stop the stopwatch; relay 1 turns
off and the process stops.
The bottom display indicates the time it took
to complete the sample.
Runtime & Cycle Count (
INFO
)
The relay information menu shows runtime and cycle
count for each relay. These values may be cleared at
any time by selecting the
Clear
option (
CLEAR?
).
RLY 1
BATCH
BATCH
COUNT
BATCH
MAXIMUM
BATCH
MODE
BATCH
PRESET
COUNT
UP
COUNT
DOWN
MAX
GAL
MAX
0,010,000.0
Flashes
Units
MODE
MANUAL
MODE
AUTO
PSET
GAL
PSET
0,001,000.0
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Units
BATCH
DELAY
DELAY
ON
TIME
0000 SEC
DELAY
OFF
TIME
0000 SEC
DELAY
9999 SEC
RLY 2
BATCH
BATCH
PRECLOSE
YES
PRECLOSE
NO
PRECLOSE
CLOSE
GAL
CLOSE
0,000,200.0
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Units
BATCH
DELAY
DELAY
ON
TIME
0000 SEC
DELAY
OFF
TIME
0000 SEC
BATCH
PRESET2
PSET2
GAL
PSET2
0,000,800.0
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Units
