vacuubrand ME 4C NT VARIO Instructions For Use Manual

Also see for MD 12C VARIO-B: Instructions for use

Contents

vacuubrand ME 4C NT VARIO Instructions For Use Manual Manual pdf 45 page image

page 45 of 129its. Clean the pump if necessary to avoid an increase ofthe pump’s operating temperature.Operation with silencer (optional) at the outlet: Operatingthe pump at a high inlet pressure or pumping dusty gasesfor a long time may cause clogging of the silencer. Checkthe silencer regularly and replace if necessary.In case of overload, the motor is shut down by a self-holdthermal circuit breaker in the winding.Note: Only a manual reset is possible. Press the START/STOP key at the controller to confirm the error message.Switch off the pump and disconnect the electrical powercord. Identify and eliminate the cause of failure. Wait ap-prox. five minutes before restarting the pump.Check fan regularly for dust/dirt. Clean if necessary. Avoidoverheating (e.g., due to hot process gases).A warm up period (approximately 15 min.) is required toensure that the rated ultimate vacuum and pumping speedare attained. Avoid overheating (e.g., due to hot processgases).Important notes regarding the use of gas bal-lastGas ballast is a continuous purge to keep the pump’s in-terior as clean as possible and to reduce the possibility ofcondensation inside the pump.➨ Air and pumped media might react inside the pump orat the outlet of the pump and form hazardous or explo-sive mixtures, when you use air rather than inert gasfor the gas ballast. This constitutes a risk of significantdamage to equipment and/or facilities, a risk of person-al injury or even loss of life.+ Make sure that air/gas intake through the gas ballastvalve can never lead to hazardous, explosive or other-