Automatic changeover switch

Switch and control unit for automatic changeover of gas mixers for a continuous gas flow changeover to standby mixer at fault changeover to emergency supply (bundle) weekly change of gas mixers (constant efficiency) during high production (high gas consumption) both mixers will be activated Switch and control unit for automatic changeover of gas mixers. Provides a smooth process flow and optimal results with a continuous gas flow. Benefits: intelligent control - the last selected gas supply will be activated after an emergency stop compatible with WITT-gas mixers quick and easy wall mounting visual alarm status indication by illuminated push-button and display integrated emergency cut-out Ex-version available Operation / Usage: for automatic changeover (switchover) of gas mixers for continuous gas withdrawal applicable for switching an emergency supply Function: the changeover station is working superior 3 conditions are possible: active - no fault ⇨ mixer active standby - no fault ⇨ mixer not active fault - fault is available ⇨ fault remedy / acknowledge scope of operation changeover to standby mixer at fault changeover to emergency supply (bundle) weekly change of gas mixers (constant efficiency) during high production (high gas consumption) both mixers will be activated (additional pressure transmitters required) changeover in case of mixer calibration (full automatic calibration is required)