Simple PLC RTD temperature measurement The Robert Owen Inc. ROI-XMA 4-20mA sensor transmitter allows 4-20mA PLC inputs to be used for RTD temperature measurement. Robert Owen Inc. temperature transmitters offer temperature ranges as wide as -200 to 500 Deg C or as small as 0 to 32 Deg C, depending on the make and model. […]
Analog sensor signal conditioners
Analog sensor signal conditioners help convert sensor signals to a more usable format Analog signal conditioners allow industry standard sensors to be connected to available IO module or PLC inputs. The IO module 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 PLC input format. Typical inputs for a IO module or PLC can be 20mA, 10Vdc, etc.
4-20mA Thermistor Transmitters The Robert Owen Inc. ROI-XMA 4-20mA sensor transmitter allows PLC Thermistor Measurement. With ROI-XMA; you can use 10K NTC thermistors with standard industrial PLC’s and industrial I/O. The ROI-XMA series of loop powered thermistor transmitters. They convert a thermistors temperature related resistance change. Into a standard 4-20mA instrumentation signal. The ROI-10KXMA series
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
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