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With
three relay outputs for automated batch control
The Laureate batch controller is a powerful and highly
accurate production workhorse in the form of a compact 1/8
DIN panel meter. It can display the current batch total
(Item #1), grand total or number of batches (Item #2), and
flow rate (Item #3). All displayed values are scaled to
engineering units of volume or flow.
A 10 A
contact relay serves as the batch relay to control
repetitive fill operations. It repeats the batch cycles
continually with a programmable delay from 10 ms to 199.99
sec, or based on an external control input. The batch total
(Item #1) can be set up to count up from zero to a preset
limit, or down from a preset limit to zero. The single-relay
board fits in the slot which would otherwise be available
for the analog output board.
An optional
dual relay board (10 A contact or 0.12 A AC/DC solid
state relays) is normally used. Either relay can be assigned
to the batch total (Item #1) to serve as a pre-warn to slow
down filling near the setpoint, to the grand total or number
of batches (Item #2), or to flow rate (Item #3).
An optional
RS-232 or RS-485 board allows the batch controller to
transmit Items #1, #2 and #3, as well as peak for #3 (rate).
If required, all four items can be displayed simultaneously
by augmenting the batch controller with up to three Laureate
remote displays. Each of these can have its own analog
output and dual relays for alarm or control.
The batch
controller utilizes the Extended counter main board and FR
dual channel signal conditioner board to accept a wide range
of pulse signals, in particular those from turbine
flowmeters. The same signal is applied in parallel to the A
and B channels.
PLEASE SEE TECHNICAL INFORMATION - PDF FOR COMPLETE
INFORMATION |