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Digital Direct Sensing - Digital sensor technology

Fully digital sensor technology brings your clean room more security and significantly lower maintenance and calibration costs. The direct conversion inside the sensors and the digital signal transfer is the safest method that you can rely on.
Digital direct sensing, DDS in short is a consequent extension of the ongoing digitalisation in the area of industrial measurement technologies. Though our environment and all kinds of measurement data aquisition is generally analog in nature the immedeate analog to digital conversion at the sensing elements site and the fully digital transmission to the measurement display provides a couple of important advantages regarding interference immunity and thus resulting in a reduced measurement uncertainity. Further more its also advantages in practical handling the DDS sensors can offer you. Thanks to the all digital data transmission from the sensor to the visualisation a calibration of the entire measruement chain as becomes obsolete. DDS sensors can simply be removed (connector) and comfortably calibrated outside its operational site, or alternatively be replaced by currently calibrated ones.

DDS sensors - Simply more precise

The consistent expansion of digitization with DDS sensors brings future security in the Cleanroom. The conversion of the analog environment directly from the data acquisition into a digital signal increases the interference resistance and reduces the measurement uncertainty.

Outside calibrated and immediately installed

For digital sensors, the only source of error is the measurement error of the sensor itself. And this uncertainty is instantly identified and documented in the calibration of sensors. In the simple plug-in system, the sensor can always be replaced by a calibrated sensor by local personnel in the cleanroom. The sensors are prepared in the measurement laboratory under defined and controlled conditions and are ready for use immediately. The working process is disrupted as little as possible. A scheduled maintenance can finish in record time.

Best insurance against failures and downtime

The costs of an unplanned standstill or a plant maintenance in pharmaceutical production reach quickly large sums or in the worst case lead even to a shortage of supply. Analog sensors are quite often to blame for the loss of production.

The inherent weaknesses of the analog system can clearly be seen especially during transmission and during calibration. In operation, an incorrect value is transmitted by interference or short-term voltage fluctuations, the failure of an analog sensor or a line break is not recognized. When servicing, the entire measurement chain has to be calibrated always on site in a clean room. Even if the service personnel follow all clothing and hygiene rules, contamination cannot always be prevented. All in all, the standing time considerably increases by the analog method. DDS sensors provide a remedy here.

Technically clearly superior

The fully digital connection to the monitoring system is vastly superior to an analog 4-20mA or similar solution. Measurement errors caused by multiple analog to digital and digital to analog conversion, reading tips due to electromagnetic interference and related line resistances belong to the past. Moreover, the system automatically detects the own fault states and transmits them to the monitoring system. For use in the control technology, the digital sensors can be optionally equipped with a standard analog interface. The unbeatable advantages of the DDS system will naturally be retained anyway.

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