Installation, Operation And Maintenance; SensorInstallation - Mettler Toledo InPro 7250-Serie Bedienungsanleitung

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18 InPro
4 Installation, operation
and maintenance
4.1 Sensor installation
The sensor shaft is equipped with a conical G
mountingthread.Theinstallationofthesensorismade
by threaded bushes or flanges. The process area is
 s ealedperfectlywithflatgasketandanO-ring.
Note: When mounted in-line, the sensor should
bein s talledcenteredtoavoidpipewalleffects.Ifthereis
lessthan30mm(1.18inch)spacingbetweensensor
and pipe, a product calibration with a sensor built in
the process is re c ommended to meet the specified
accuracies.
Bore
Sensor doughnut
Figure 2: Sensoroverview
Note: Properinstallationofthesensorisimportantfor
 e fficientandaccurateoperation.Forallapplicationsand
sensorconfigurations,mountingarrangementsmustbe
locatedsothat:
– Sampleatthesensingareaisrepresentativeofthe
 s olution.
– Solutioncirculatesactivelyandcontinuouslypastthe
sensingarea.
– Positionandorientationofthesensordoesnottrap
airbubbleswithinsensingarea.
– Depositsofsedimentorotherforeignmaterialdonot
accumulate within the sensing area. If cable is in -
stalled in a conduit (recommended), either flexible
conduit should be used or some other provision
madeforremovalofsensorfromtheprocess.
©01/2016Mettler-ToledoGmbH CH - 8606Greifensee
PrintedinSwitzerland 52002799
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® 7250Series
Arrow for the
sensor direction
Cable cap
Flat gasket and O-ring
for safe process sealing
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