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Applications, Laureate Scale Meter
for Weighing Applications
High accuracy weight, low cost, plus control outputs
Key Features
- Digital panel meter optimized for weighing applications
- 5-digit resolution with scaling from 0 to 99,999, plus fixed zero for display to 999,990
- Auto-tare or manual tare, with tare value stored in non-volatile memory.
- Auto-zero display function
- Display toggle between gross or net weight
- Count by 1, 2, 5, 10, 20, 50 or 100 with rounding
Application Example: Weighing the Load on a Truck
The Laureate weight meter power all four 350 ohm load cells of the scale with its 10 V, 120 mA isolated excitation output. Six-wire connection eliminates the effects of lead resistance and allows long cable runs from the control room to the scale.
The five-digit meter can be scaled to display truck weight up to 99,999 lbs with 1 lb resolution or 999,990 lbs with 10 lb resolution. Accuracy is 0.01% of full scale at 25°C. To avoid the effects of system-level noise, different filter settings as well as "count by" of 1, 2, 5, 10, 20, 50 or 100 with rounding are selectable. |
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| To read out net weight of the load, the truck can first be weighed empty, and this weight can be entered as tare at the push of a button in an auto-tare mode. Or the nominal tare value of the truck can be entered manually. Display of net weight or gross weight is at the push of a button. The gross weight and net weight can be alarmed, be transmitted to a computer via RS232 or RS485, or be transmitted via a 4-20 mA analog signal. |
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