Endress+Hauser TopClean S CPC 30, Руководство по эксплуатации

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6 Commissioning TopClean S CPC 30
30 EHauser
6 Commissioning
6.1 Function check
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Warning!
Before power-up, please make sure that no danger can occur to the equipment in which
the system is included, e.g. through uncontrolled pumps, valves and the like.
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Caution!
•
Before switching on, check all the connections again for correctness.
•
Make sure that the pH or redox electrode and the temperature sensor are in the
measuring medium or in a buffer solution, otherwise no plausible measured value can
be displayed.
•
Make sure also that the post-connection check is carried out (s. chap. 4.4).
6.2 Switching on the measuring device
Before first start-up, make sure you understand how to operate the device. You should
make particular reference to chapters 1 ("Safety instructions") and 5 ("Operation").
6.2.1 First commissioning
On first switch-on, the instrument starts automatically with the Quick Setup menu. This
asks you about the most important instrument settings. After you close the menu, the
instrument is ready for use and measurement in its standard configuration.
!
Note!
•
You must completely run through the Quick Setup menu. If you do not, the instrument
will not be operational. If you interrupt the quick setup, it will start again at the next
power-up until
all the items have been processed and completed.
6.3 Special features for measurement with glass-free
IsFET sensor
Switch-on behaviour
A closed control loop is created once the measuring system is switched on. During this
time (approx. 5-8 minutes), the measured value adjusts to the real value. This settling
behaviour occurs each time the liquid film between the pH-sensitive semiconductor and
the reference lead is interrupted (e.g. caused by dry storage or intensive cleaning with
compressed air). The settling time in question depends on how long the interruption
lasts.
Sensitivity to light
Like all semiconductor elements, the IsFET chip is sensitive to light (measured value
fluctuations). However only intense direct illumination impinges on the measuring value.
For this reason, avoid direct exposure to sunlight during calibration. Normal ambient
light does not affect measurement.