Laurel Electronics, Inc
Laurel Electronics, Inc. designs, manufactures and sells programmable digital panel meters, counters, timers, remote displays, transmitters and other instrumentation for demanding industrial applications.
- (714) 434-6131
- (714) 434-3766
- sales@laurels.com
- 3183-G Airway Avenue
Costa Mesa, CA 92626
United States
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Remote & Large Digit Displays
Remote and Large Digit Displays, as defined in this web page, are numeric displays that are driven by a serial signal from a computer, programmable controller, or other instrument. Digit heights can range from 0.56" (14.2 mm) to 11.0" (280 mm). Laureate remote displays, with a digit height of 0.56", are similar to a digital panel meter or counter in appearance.
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Totalizer (pulse input)
Two independent scalable pulse-input channels. Count up or down to a preset at rated up to 1 MHz. Scaled rate and total from the same electronic counter. Scaling for direct readout in engineering units, such as gallons or cubic feet based on counts from a turbine flow meter. One channel can display total while other displays rate.
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Loop-Powered Digital Panel Meter
88-PRO
The 88-PRO Process Meter may be connected directly to a 4-20 mA, 10-50 mA or 1-5 mA current loop, with no need for additional power to the meter. This is because the meter is powered directly by the current loop, developing a maximum voltage drop of 2.5 V.
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Load Cell & Microvolt Meter
A high-sensitivity 5-digit meter for use with load cells, strain gauges and microvolt input signals where high accuracy and stability are required. Load cell operation allows 4- or 6-wire hookup and display in engineering units, such as lbs, kg or psi. Built-in excitation for up to four 350-ohm load cells in parallel.
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Linearizing Panel Meter
All capabilities of the Laureate process meter, plus custom curve linearization. Setup is easy using an external PC and linearizing software furnished by Laurel. For example, display liquid volume in irregularly shaped tanks, use with non-linear transducers, or extend the working range of nominally linear transducers.
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Digital Panel Meter
DC
Laureate DC voltage and current panel meters with a DC signal conditioner board combine high accuracy with high read rate and a wide range of isolated output options for computer interface and control. Accuracy is 99.99% of full scale 1 count. Used as a direct-reading DC voltmeter, the Laureate provides a full-scale readout of 20,000 counts and six full-scale voltage ranges from 200.00 mV with 10 mV resolution to 600.0 V with 100 mV resolution.
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Frequency, Rate Meter, Flow Rate Indicator
Two independent scalable pulse-input channels from 0 Hz to 1 MHz. Channels may be combined arithmetically. One channel can display total while other displays rate. High read rate for control applications: AC line frequency can be measured to 50.0000 or 60.0000 Hz in a few line cycles. Ideal for use as a tachometer or readout of a turbine flow meter.
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Process Totalizer (analog input)
Displays and totalizes 0-1 mA, 4-20 mA, or 0-10 V process signals. Square root extraction is standard for flow applications, allowing display of volume from the 4-20 mA signal of a flow transducer with a linear or squared output.
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Datalogging Software
XLog Datalogging Softwre
Laurel's data logging software can turn a PC connected to up to Laureate instruments into a powerful, data logging system. The Laureates can be any mix of digital panel meters, counters, timers and transmitters. The software allows 31 hardware instruments and 33 virtual instruments. The latter can display calculated parameters which combine data from multiple instruments.
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Phase Angle Meter
Exceptionally fast response (up to 20 updates per second) and high accuracy for low frequencies, such as AC line frequency. A resolution of 1, 0.1 or 0.01 is user-selectable. Accuracy is 0.01% up to 100 Hz, 0.1% at 1 kHz, and 1% at 10 kHz.
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1/8 DIN Bargraph Process Display
BAR Series
30-segment bar graph meter with 75 mm (3") scale length for 4-20 mA, 0-1 mA, 0-10V, or 1-5 V signals. Optional dual-relay output.
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A+B, A-B, AxB, A/B, A/B-1 Draw Meter
Arithmetic functions (+, -, /, x) on dual channels A and B open a world of possibilities. For example, add or subtract rates from two flow meters for combined scaled flow or volume. Display the ratio of flow rates, RPM of rollers, or speed of moving belts. Draw, which is obtained by subtracting 1 from ratio, can be used to indicate elongation or shrinkage of material as it passes between rollers.
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Modbus or Laurel ASCII ProtocolSerial Output DIN Rail Transmitters
Laureate TM Series serial output transmitters can be jumpered for two signal levels: RS232 or RS485. Two serial protocols are selectable in software: Modbus or Laurel's Custom ASCII.Modbus protocol operation is fully compliant with the Modbus Over Serial Line Specification V1.0 (2002) for 2-wire, half-duplex connection.
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Model QLS 4-20 mA Loop Splitter / Retransmitter
Generates up to four individually grounded and individually adjustable 4-20 mA loops from a single 4-20 mA or 0-10V input. Overcomes problems which occur when the same 4-20 mA signal is applied to multiple loads in series. Allows outputs to have different grounds, and allows individual loops to be opened without affecting signal to other loads.
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Duty Cycle Meter
Displays ON or OFF period as a percentage of total period over a programmed gate time from 10 ms to 199.99 s. A resolution of 1%, 0.1% or 0.01% is user-selectable. Applications include monitoring modulated proportional control systems and pulse-modulated systems, such as radar, lasers or packet radio.
