Smart sensor for condition monitoring
20 September 2018
STEGO's Smart Sensor CSS 014 measures two important parameters – temperature and humidity – and helps to maintain an optimal climate.
Condition monitoring is an essential part of predictive maintenance. This applies not only to enclosures and switch cabinets in industrial plants, but also to a large number of different applications in which regulated processes take place.
Key parameters: temperature and humidity
Condition Monitoring is all about paying attention to detail. The key parameters within the switch cabinet should always be under control. The permanent measurement of temperature and humidity in the switch cabinet is an important element in preventing condensation, which leads to corrosion and thus failure of components. And this is where STEGO's CSS 014 Smart Sensor comes into play, combining three functions in one compact device: a sensor, interface and transmitter all in one. The CSS 014 measures ambient temperatures with high sensitivity within a range of -40 to +60 °C while keeping a close eye on the relative humidity range from 0 to 100% RH.
Smart sensor, smart user
The CSS 014 Smart Sensor transmits the data it acquires as a standardised analog 4-20 mA signal. This signal users can further process and convert the measured values within a control or monitoring unit, e.g. a PLC. Due to high measuring accuracy and signal strength connection wires with a maximum length of 30 m can be used. Thus, scenarios beyond the classic control cabinet application can be implemented. In principle, any larger, spatially sealed application with a defined atmosphere is suitable.
Inner values for demanding applications
The sensor unit of the CSS 014 is thermally decoupled and encapsulated with a circumferential seal. Rewards of this effort: a high vibration resistance and compliance with the IP20 degree of protection. The protective lacquer-coated board of the CSS 014 incorporates microcontrollers, interface drivers and EMC protection units in a heat-optimised arrangement so that any influence on the measured values due to waste heat is ruled out. A shielded M12 round plug ensures a fast connection and safely transmits the signals of the two measuring channels for processing. The operating voltage is DC 24 V (DC 12 - 30 V) with a maximum power consumption of 1.8 W (typically 0.4 W). Tested safety is certified for the Smart Sensor CSS 014 through successful approvals with VDE and UL according to the standard IEC 61010-1 / DIN EN 61010-1.
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