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Laurel Electronics Laureate 6-Digit Process Meter & Analog Signal Totalizer User Manual

Page 4

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LAUREL

ELECTRONICS INC., 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 4

Up- or Down-Counting Batch Controller

An ideal application for the Extended
Laureate VF meter: up- or down- counting
batch controller. The dual-relay card is
required. One relay is dedicated to batch
control, the other relay is available to alarm
the rate or total. The signal input can be
linear or nonlinear. The display can be
toggled between rate and total.

Volume of an Irregularly-Shaped Tank

The Extended Laureate VF meter can
linearize analog signals for display and alarm
using custom curve linearization with multiple
nonlinear segments. As illustrated, tank level
is measured by an ultrasound detector, which
transmits a 4-20 mA signal. This signal is
then converted to a highly accurate volume
reading. The linearized rate readings can
also be totalized.

Process Time from an Analog Rate Signal

A unique application of the Extended
Laureate VF meter: displaying process time
based on the 4-20 mA or 0-10 V signal from a
rate meter. In the above example, a tacho-
meter transmits the speed of a conveyer belt
through an oven. The meter displays baking
time in the oven using the relationship time =
distance / speed.