Maintenance; Cleaning The Sensor Head; Checking With An Inspection Unit; Tuchenhagen-Varivent ® Process Adapter Check And Change Of O-Rings - Mettler Toledo InPro 8600 Série Instructions D'utilisation

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© 05 / 08 Mettler-Toledo AG, CH-8902 Urdorf
Printed in Switzerland
4.4

Maintenance

4.4.1 Cleaning the sensor head

The measurement principle provides a large degree of compensation for contamination of the
sensor head. However, the contamination can become so severe, depending on the operating
conditions and media, that the compensation is no longer adequate and the sensor head must
be cleaned.
1. Place the system or equipment in a safe state (depressurised, empty, rinsed, vented or venti-
lated, etc.)
2. Disconnect electrical power
3. Dismount the sensor
4. Clean the sensor head using a soft, lint-free cloth and a mild cleaning agent
5. Install the sensor

4.4.2 Checking with an inspection unit

The sensor can be checked using an inspection unit with a built-in solid reference. The procedu-
re is described in the corresponding instruction manual.
4.4.3 Tuchenhagen-Varivent
The O-ring of the process adapter needs to be checked monthly and during every service call.
METTLER TOLEDO recommends that medium-wetted seals should under all circumstances be
replaced every 6 months.

4.4.4 Measurement window check

The sapphire windows need to be checked monthly and during every service call. Take special
attention to damage, contamination and sealing.
®
process adapter check and change of O-rings
InPro 8600 Series
InPro 8600 Serie
52 800 991