Grundfos ALLDOS KM 251 - Safety of the System in the Event of a Failure in the Dosing System

KM 251 en Safety
V1.0 13
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Warning
To operate a pump which has been identified as an explosion protected pump for
the dosing of combustible liquids or for operation in potentially explosive opera-
ting sites in accordance with guideline 94/9/EC, refer to the enclosed instruction
manual “Operating an explosion protected pump” in addition to this operation
manual.
If the assumption is made that a safe operation is no longer possible, switch off the
pump and protect it against unintentional operation.
This action should be taken
• if the pump has been damaged,
• if the pump no longer seems to be operational,
• if the pump has been stored for an extended period of time in poor conditions.
2.9 Safety of the System in the Event of a Failure in the Dosing System
KM 251 dosing pumps are designed according to the latest discoveries and are carefully
manufactured and tested. However, a failure may occur in the dosing system. Systems in
which dosing pumps are installed must be designed in such a way that the safety of the
entire system is still ensured following a failure of the dosing pump. The relevant monito-
ring and control functions are designed for this.