A panel meter where the segments are represented by dark areas in a liquid crystal display.
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Bi-color LED's are made using red and green LED's in the same package. Most indoor programmable LED displays today use either all red LED's or they use red and green LED's. To a lesser extent all amber is sometime selected. It is possible to create 256 or more shades of color from red to green using only red and green bi-color LED's. Blue LED's are the most expensive and have the highest brightness. Adding blue LED's to the red and green can give you over 1.7 million shades of color.
the panel meter is capable of displaying characters in multiple colors.
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At facilities where there are flammable or explosive materials, operating at low energy can prevent electrical devices from creating arcs, sparks, or heat (during normal or fault conditions) that could ignite the explosive substance. Such a system is termed "intrinsically safe."
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A strain gauge is a sensing device, attached along its entire length to a surface so that its resistance will change as the surface is deformed. Strain gages are typically used as elements in a Wheatstone bridge circuit, which is used to make the measurement.
Piezoresistive sensors are based on semiconductor technology. The resistance changes because of alterations in the length and width (as with strain gauges) as well as a shift of electrical charges within the resistor.
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Analog outputs are used in applications that require digitally controlled output voltages usually within the range of +/-10 V or less, and at current levels below 10 mA. The heart of an analog output channel is a digital-to-analog converter (DAC), which converts a digital code into a voltage level. The output of the DAC is then processed or conditioned to produce the required output signal characteristics.
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This is the full required range of ambient operating temperature.
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