Installation, Operation And Maintenance; Sensor Installation - Mettler Toledo InPro 7250 Series Bedienungsanleitung

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4 Installation, operation
and maintenance
4.1

Sensor installation

The sensor shaft is equipped with a conical G
mounting thread. The installation of the sensor is made
by threaded bushes or flanges. The process area is
sealed perfectly with flat gasket and an O-ring.
Note: When mounted in-line, the sensor should
be installed centered to avoid pipe wall effects. If there is
less than 30 mm (1.18 inch) spacing between sensor
and pipe, a product calibration with a sensor built in
the process is recommended to meet the specified
accuracies.
Bore
Sensor doughnut
Figure 2: Sensor overview
Note: Proper installation of the sensor is important for
efficient and accurate operation. For all applications and
sensor configurations, mounting arrangements must be
located so that:
– Sample at the sensing area is representative of the
– Solution circulates actively and continuously past the
– Position and orientation of the sensor does not trap
– Deposits of sediment or other foreign material do not
© 09/08 Mettler-Toledo AG
Printed in Switzerland
Arrow for the
sensor direction
Flat gasket and O-ring
for safe process sealing
solution.
sensing area.
air bubbles within sensing area.
accumulate within the sensing area. If cable is in-
stalled in a conduit (recommended), either flexible
conduit should be used or some other provision
made for removal of sensor from the process.
®
InPro 7250 Series
Cable cap
CH - 8606 Greifensee
52 002 799
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