Already with the standard version the motor metering pumps of the Sigma series are offered with multilayer safety dia-phragm and integrated dia-phragm fracture guard. Even in case of diaphragm rupture, no chemicals hazardous to the environment can escape at no point. The design of the multilayer safety diaphragm ensures absolutely that even given a diaphragm rupture the metering medium still remains in the liquid end and cannot leak to the outside into the environment at no point. A visual indicator or error message allows the user to timely respond to any damage. In the Sigma motor pump series as control version, a diaphragm rupture is signalled by an illuminated red LED as well as an error message on the LC display. Depending on the setting, the pump either stops or continues to meter while signalling an alarm. The diaphragm rupture sensor ensures reliable metering – even under critical operating conditions. A timely response to any damage is possible and metering can be continued up to an appropriate time without interrupting the process.
Online-Info www.cpp-net.com/2110461
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