Witt mixers in particular work with a high pressure fluctuation tolerance and provide precise gas mixtures even at different input pressures. Nevertheless, even they struggle when confronted with major irregularities in the gas supply: In this case, only alarm modules such as the NXT+ provide protection against unwanted gas mixtures resulting in expensive production failures. The system not only receives signals from the input pressure monitoring integrated in the mixers. It also monitors the pressure in the mixing gas vessel so that the entire process remains under control centrally, from the gas input to the mixing gas output to the consumer. The alarm module is also available as a retrofit.
A digital display on the front of the device lets you view the measuring values. In addition to this, six LEDs signal whether the monitoring is active and the values are within the freely adjustable limit values. A time delay for the alarm can be specified in order to customize the sensitivity of the alarm module and tolerate low pressure fluctuations. An acknowledgement of the alarm reception can also be activated. The system saves the alarm messages so as to make it easier to track the faults occurring. Interfaces typically allow further processing of the measuring data or actuation of additional alarm and control systems.
And what is more, the alarm limits can also be set quickly and easily via the display. For comprehensive administration, however, we recommend the convenient “Alarm Control Software” from Witt. Alternatively, the NXT+ can also be accessed via the system program “HyperTerminal”, this available on almost every Windows PC.
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