Sensor signal conditioners help convert sensor signals to a more usable format. Sensor signal conditioners allow industry standard sensors to be connected to available PC or PLC inputs. The PC or PLC input where the connection needs to be made is not normally sensor compatible. The signal conditioning converts the sensor signal format into the PC or PLC input format. Typical inputs for a PC are USB, Ethernet, etc. Typical inputs for a PLC can be RS232, RS485, 20mA, 10Vdc, etc.
LIVE ZERO 4-20MA INSTRUMENTATION SIGNAL KEY ADVANTAGE Live zero is a key advantage of 4-20mA instrumentation signals. Using Ohms Law (E=IxR), with I = 4mA and R = 250 ohms, we see that the minimum measurement would be 1Vdc. If the range of the voltage trend recorder is 0-5V, any measured value below 1V indicates […]
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ANALOG SIGNAL CONDITIONER BENEFITS Analog sensor signal conditioners have specific features that offer capabilities that cannot be filled by a microprocessor signal conditioner. Microprocessor based sensor signal conditioners have a number of basic limitations, when compared to analog sensor signal conditioners. Speed and resolution are the two, most important differences. Microprocessor based sensor signal conditioners
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ISOLATION AMPLIFIER DATA CONVERTER APPLICATION SOLUTIONS High voltage measurement is easily & safely accomplished; when isolation amplifiers are combined with voltage dividers, to fit the measurement span of the connected data converter. An example of this is shown by considering; a conversion of, the supply power to a dc motor. When measured using voltage dividers
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Example 4-20mA thermistor transmitter wiring diagram A Simple 4-20mA Transmitter Operation Description The 4-20mA transmitter can be looked at as a temperature controlled variable load. It is in series with the power supply and current measurement shunt resistance. The effect is similar to the transmitter acting like a potentiometer. One that will vary total load
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