 |
|
Digital Panel Meters & Controllers for Process,
Level,
Strain, Pressure, Flow, Rate, RPM, 4-20 mA
Product Selection Guide |
 Transducers for flow,
rate, RPM and other process variables typically put out an analog DC
signal, such as 4-10 mA or 0-10 V, or a pulsed / AC signal. Strain
gauge transducers provide a changing resistance and require bridge
excitation. Laurel offers digital panel meters for all these signals with
scaling to display in engineering units, such as GPM, liters/sec,
PSI or LBS. Capabilities include custom curve linearization, square root
extraction, rate from successive readings, totalizing from rate
signals, analog outputs tied to the reading, and relay outputs
for alarm or control.Flow meter readout for
flow rate or totalized flow is a major application of Laureate panel meters and counters.
The Laureate
Model FR dual-channel pulse input counters can display flow rate,
totalized flow, the ratio of two flows, or the ratio of two totals to control
mixing. It can also display the
sum of two flows (for total flow) or the difference of two flows (for
net flow). The Laureate Model VF can display flow rate or totalized flow for
4-20 mA, 0-1 mA or 0-10 V analog signals. |
Laureate Process
Meter Model P
5-digit DC digital panel meter for analog signals such as 4-20 mA or 0-10 V.
Programmable zero and span using
three methods: scale and offset, two-points,
or system-level calibration using actual transducer signals for known
readings.
Fast read rates with peak hold. An
Extended processor version allows custom
curve linearization
and rate from successive readings. Fast read
rates with peak hold. Includes isolated transducer excitation supply. Optional
analog output, relays, and data I/O. Five 0.56" (14.2 mm) high digits,
1/8 DIN case.
|
|
Laureate Process
Totalizer, Model VF
This digital panel meter totalizes 0-1 mA, 4-20 mA or 0-10 V analog signals,
for example to display totalized volume from the 4-20 mA analog signal
of a flow meter transducer. Capabilities include zero and span
adjustment, square root
extraction from differential flow meter signals, custom curve
linearization, and elapsed time based on rate (for example, the time
it will take bread to traverse an oven). Optional
data I/O and relays for alarm or control. Six 0.56" (14.2 mm) high digits,
1/8 DIN case. |
|
Laureate Strain
Gauge & Potentiometer Follower Meter, Model SG
5-digit DC digital panel meter for application where the signal is a
changing resistance. A built-in isolated 10 Vdc excitation supply powers four 350-ohm load cells in parallel.
Ratiometric operation with 4-wire bridge
connection cancels variations in the excitation
supply. Most sensitive full-scale input is ±200 mV. Multiple selectable filtering methods assure a stable display.
Programmable zero and span using
three methods: scale and offset, two-points,
and
system-level calibration using actual transducer signals. Auto-tare with tare value stored
in memory for weighing applications. Optional
analog output, relays, and data I/O. Five 0.56" (14.2 mm) high digits,
1/8 DIN case.
|
|
Laureate Pulse
Input Rate Meter, Model FR
6-digit scalable counter with dual inputs from a wide range of pulse signal
sources. Ideal as a tachometer or flow meter display. Allows square root extraction,
custom curve linearization, and display of rate or total. Dual channels allow
addition or subtraction of two rates or taking the ratio of two rates, for example
to display draw (Ch A / Ch B - 1). Includes
isolated transducer excitation supply. Fast read
rates with peak hold. Optional analog
output, relays, and data I/O. Six 0.56" (14.2 mm) high digits, 1/8 DIN
case. |
|
88-PRO Loop-Powered Digital Panel
Meter
Scalable process meter powered by 4-20 mA, 10-50 mA or 1-5 mA current
loop, with no need for external power. 3 1/2 LCD digits, 12.7 mm (0.50")
digit height,
1/8 DIN case.
|
|
Junior Series
Process Meter, Model P
Low-cost, screwdriver-adjusted, 3-1/2 digit panel meter indicator
available for process
signals (e.g., 4-20 mA, 0-10 V). Includes non-isolated transducer excitation
supply. No control outputs. 3-1/2 digits, 0.56" (14.2 mm) digit
height, 1/8 DIN case.
|
|
Grand Series "Large Digit"
Displays, Models P & FR
5-digit large-digit displays with a digit
height of 2.2" (57 mm), 4.0" (102 mm), 5.7" (144 mm),
or 7.9" (200 mm) for long viewing distances. Available for
process signals (Model P) or rate / frequency
(Model FR). Includes non-isolated transducer excitation supply.
Optional relays and data I/O. Choice of display brightness and cases for
indoor or outdoor mounting.
|
|
Microminiature Digital
Process Meter, Model M-35
Fits 22.5 x 45 mm cutout. Accepts 4-20 mA, 0-10 mA, 0-2V, 1-5 V, or 0-10 V signals.
3-1/2 0.39" (10 mm) high digits. Powered from 10-30 Vdc.
|
|
BAR Series 1/8 DIN
Bargraph Process Display
30-segment bar graph meter with 75 mm (3") scale length for 4-20 mA, 0-1 mA,
0-10V, or 1-5 V process signals. Optional dual-relay output.
PRO-BAR Large
Bargraph Process Display
50-segment bar graph meter with 250 mm (10") scale length for 4-20 mA,
0-1
mA, 0-10V, or 1-5 V process signals.
|
 |
|
|
|
