Humidity sensor controller RPS-8000 series

temperaturecurrentpressure

Various Sensing Ranges Narrow Sensing Beam High Frequency LED Indicator Sealed Transducer Multiplexed 2 – 8 Tranducers Analog Current and Voltage Isolate Form C Relay Outputs Temperature Compensation Small Remote Transducer Overview The RPS-8000A was designed for applications where 2 or more sensors are needed in a general area. The RPS-8000A can handle up to 8 TSR-3 transducers, and the RPS-8001A up to 8 SSR-3 transducers (stainless steel). These transducers are multiplexed so they can all operate in close proximity with each other without interference. Each sensor has three outputs: an analog voltage, analog current, and form C relay. The Analog outputs each have a zero and span control as well as an inverting switch if a decreasing signal with distance is desired. There is a 25 turn pot provided for each relay output so the detect point can be adjusted. Another feature is the instrument’s ability to compensate for temperature changes. To accomplish this sensor “0” looks at a fixed distance and adjusts the circuit to give a proper reading. Since all the other channels use this same compensated circuit they, too, become compensated for temperature, humidity, and pressure changes. The RPS-8000A also has the ability to be controlled from an external source. When operated in this mode the user can direct any of the 8 sensors to output “S1”. This then requires the need for only a single input. Another external control is the RATE. This controls the rate at which the sensors will update.