Panel Meter suits load cells, strain gages, and µV signals.
October 6, 2006 -
Used as load cell meter, Laureate Model WM powers up to four 350 W load cells in parallel using built-in, isolated 10 Vdc, 120 mA excitation supply. With 4-wire hookup, meter operates in ratiometric mode to eliminate errors due to supply variations, and with 6-wire hookup, it also compensates for variations in transducer lead resistance. When used as DC microvolt meter, unit provides sensitivity down to 20 mV FS with 1 µV resolution. Accuracy is 0.01% of FS ±2 counts at rates up to 60/sec.
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Original Press release
Laurel Electronics, Inc.
3183-G Airway Ave.
Costa Mesa, CA, 92626
USA
Load Cell Panel Meter Powers Four 350-Ohm Load Cells in Parallel
Costa Mesa, CA - Laurel Electronics, Inc. announces the Laureate Model WM, a UL-listed, high-sensitivity digital panel meter and controller for load cells, strain gauges and microvolt signals where high accuracy and stability are required.
When used as a load cell meter, the Laureate WM can power up to four 350-ohm load cells in parallel using a built-in, isolated 10 Vdc, 120 mA excitation supply. Connection to a bridge can be via 4 or 6 wires. With 4-wire hookup, the meter operates in a ratiometric mode to eliminate errors due to supply variations. With 6-wire hookup, it also compensates for variations in transducer lead resistance, thereby allowing long cable runs in changing temperature environments.
When used as DC microvolt meter, the Laureate WM provides sensitivity down to 20 mV full scale with 1 µV resolution. Accuracy is 0.01% of full scale ±2 counts at rates up to 60/sec. Such high read rates are ideal for peak capture, alarm, control, and computer interface.
The Laureate WM can be scaled for direct readout in engineering units, such as pounds, kilograms or PSI. Scaling can be via front panel pushbuttons or Windows-based setup software. Zero may be set from -99,999 to +99,999, and range may be scaled from 0 to ±99,999.
Functionality is enhanced by advanced firmware. An adaptive digital filter with selectable time constants can quiet the reading in noisy environments, yet responds rapidly to changes in level that exceed a threshold. Scale and offset can be entered either manually, or by using actual calibration signals. For weighing applications, auto-tare is standard to subtract the weight of an empty container.
Options include dual relays for control or alarm, 4-20 mA and 0-10V analog outputs, and an RS232 or RS485 port for data communications with a host computer or PLC. Modbus RS485 is fully supported. All inputs and outputs are mutually isolated.
The base price is $265. For product specifications and the pricing of options, visit www.laurels.com/loadcell.htm.
For more information, contact Jim Way, VP Sales & Marketing, phone: 866-709-7713 or
714-434-1631, email sales@laurels.com.
Founded in 1990, Laurel Electronics, Inc. is a leading U.S. manufacturer of programmable industrial digital panel meters, counters, timers, and DIN rail transmitters.
Company Information:
Name: Laurel Electronics, Inc.
Address: 3183-G Airway Ave.
City: Costa Mesa
State: CA
Zip: 92626
Country: USA
Phone: 866-709-7713 (toll free)
Fax: 714-434-3766 4
Web: http://www.laurels.com
Email: sales@laurels.com
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