Procedure In The Event Of A Failure In The Power Supply - Mettler Toledo EasyClean 100 Instructions D'utilisation

EasyClean100/150
Failure in the
power supply
Failure in the
power supply
Failure in the
compressed air supply
EasyClean100/150
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5.4 Procedure in the event of a failure in the power supply

EasyClean100
In the event of a power failure, all functions of the EasyClean100 cut out, with no impact on
the reading. The EasyClean100 is inactive. This means:
– The electrode continues to measure. If the transmitter is still being powered, the measure-
ment results can be used.
– The rinse function is closed. It is no longer possible to rinse the electrode.
NOTICE
When the power supply is reconnected the system is automatically returned to the state
specified by the transmitter.
EasyClean150
EasyClean valves are de-energized in the following positions.
– Water valve: closed
– Air valve: the housing or sensor moves out of the process and the transmitter
goes into "HOLD" mode.
NOTICE
If the EasyClean150 is provided with power once more, the housing always moves into
the measuring position.
In the event of a loss of compressed air the sensor remains in its last position.
NOTICE
If the housing is in the process, it can be pushed into the maintenance position by means
of back pressure. In this case the transmitter continues to measure. As there is no indication
of the position of the housing, the EasyClean150 does not recognize the position of the
housing. A loss of compressed air does not, however, have any effect on the measurement.
© 11/14 Mettler-Toledo AG, CH-8606 Greifensee
Printed in Switzerland
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