Endress+Hauser Memosens COS81E, Руководство по эксплуатации

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Memosens COS81E Commissioning
Hauser 21
7 Commissioning
7.1 Function check
Prior to initial commissioning, ensure that:
• The sensor is correctly installed
• The electrical connection is correct
If using an assembly with automatic cleaning function:
‣
Check that the cleaning medium (water or air, for example) is connected correctly.
L
WARNING
Escaping process medium
Risk of injury from high pressure, high temperatures or chemical hazards!
‣
Before applying pressure to an assembly with cleaning system, ensure that the system
has been connected correctly.
‣
If you cannot reliably establish the correct connection, do not install the assembly in
the process.
1. At the transmitter, enter all the settings specific to the parameters and measuring
point. These include the air pressure during calibration and measurement or the
salinity, for instance.
2. Check whether a calibration/adjustment is necessary.
The oxygen measuring point is then ready to measure.
Following commissioning, the sensor must be serviced at regular intervals, as only
then can reliable measurement be guaranteed.
Operating Instructions for the transmitter used, such as BA01245C if using the
Liquiline CM44x or CM44xR.
7.2 Calibration and adjustment
The sensor is calibrated and adjusted in the factory prior to delivery and is therefore ready
for immediate use.
A recalibration or readjustment is required in the following situations:
• Changes due to process conditions, e.g. for Cleaning in Place (CIP), Sterilization in Place
(SIP) and autoclaving
• Changes due to stress: temperature and/or chemicals (cleaning)
• Following a spot cap replacement
Recommended procedure after replacing a spot cap
First calibrate and adjust the sensor at the zero point and then in the presence of
oxygen.
Calibration and adjustment can also be monitored or renewed cyclically (at typical time
intervals, depending on operating experience), e.g. within the context of system
monitoring.