Precision Digital Corporation Loop Leader+ PD4-6624, Инструкция по эксплуатации

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PD4-6624 & PD4-6628 Loop-Powered Flow Rate/Totalizers Instruction Manual
51
Batch Control Relay 2
The
BATCH
option only appears under relay 2 if relay 1 has also been set to batch control. The second 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 function may be assigned to any relay. There are three settings needed to
use the function effectively.
1. Assign stopwatch to either top or bottom display
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
(see pages 38 & 40 for details how to change the display)
•
Relay 1
(see pages 42 & 47 how to change Open Collector and or Solid-State Relay functionality)
•
F3: Start/Stop
(see pages 63 & 64 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 2
BATCH
BATCH
PRECLOSE
YES
PRECLOSE
NO
PRECLOSE
CLOSE
GAL
CLOSE
000,005.00
Flashes
Units
BATCH
DELAY
DELAY
ON
TIME
0060 SEC
DELAY
OFF
TIME
0000 SEC
BATCH
PRESET2
PSET2
GAL
PSET2
000,050.00
Flashes
Units
ENTER
F3
MENU
F2
F1
ENTER
F3
ENTER
F3
ENTER
F3
ENTER
F3
ENTER
F3
ENTER
F3
ENTER
F3
ENTER
F3
ENTER
F3
ENTER
F3
INFO
RELAY 1
RELAY
RUNTIME
TIME
195.0 H
CYCLE
COUNT
ENTER
F3
MENU
F1
CYCLE
51
RLY 1
CLEAR?
F1
Flashes
Briefly
Flashes
Briefly