Alarm Module for Gas Mixer Protects Against Unwanted Gas Mixtures

Jan. 21, 2013
System monitors the pressure in the mixing gas vessel, ensuring process remains under control centrally.

Witt Gas Controls has launched an alarm module called the NXT+ that monitors the gas pressures at the inputs of the gas mixer and in the mixing gas vessel to ensure a constant process quality. Witt mixers work with a high-pressure fluctuation tolerance and provide precise gas mixtures even at different input pressures. However, major irregularities in the gas supply can occur. In this case, 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 monitors integrated in the mixers, it also monitors the pressure in the mixing gas vessel. This ensures the entire process remains under control centrally, from the gas input to the mixing gas output. The alarm module is also available as a retrofit.

A digital display on the front of the device lets users view the measuring values. In addition, 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 to make it easier to track the errors.