Sensor for liquid and/or gas analysis directly connectable to a higher-ranking control system

摘要

A sensor of the type for liquid and/or gas analysis, which is connected to a measuring and/or evaluating system or, respectively, to a higher-ranking control system and has a sensor housing. The circuit for the collecting, processing and transmitting measured values to the measuring and/or evaluating system or to the control system (19) are provided in the sensor housing (2). This circuit has analog sensor electronics (3), an analog-digital converter (14) for converting the detected analog measured values into digital measured values, a processing unit (15) and communication device (17) for processing and transmitting the digital measured values to the measuring and/or evaluating system or to the control system (19) according to a standard communication protocol of process technology.

主权项

1. Sensor for at least one of liquid and gas analysis, which is connected directly to a higher-ranking control system, comprising:
a sensor housing, and circuit means for collecting, processing and transmitting measured values to the higher-ranking control system provided in the sensor housing, the circuit means comprising means for measuring a pH-value, analog sensor electronics, an analog-digital converter for converting detected analog measured values into digital measured values, a processing unit and communication means for processing and transmitting the digital measured values to said higher-ranking control system according to a communication protocol, and wherein means for galvanic separation are provided both between said analog-digital converter and the processing unit and between the processing unit and said communication means.