Xylem DIQ/S 281, Operating Manual

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DIQ/S 281 What to do if ...
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8.3 Replacing system components
8.3.1 Replacing passive components
Passive components include all components that the universal transmitter can-
not recognize.
These include:
 DIQ/JB (branching module)
 DIQ/CHV (module for automatic compressed air cleaning)
 Cables (SNCIQ, SACIQ).
8.3.2 Replacing the IQ sensor
Inactive datasets
of IQ sensors
If an IQ sensor is removed from the system, its settings remain stored in the Uni-
versal Transmitter. A dataset contains the following information:
 Serial number of the IQ sensor (and, with it, the type of sensor)
 All sensor settings
 All characteristics of the link with an output.
If no suitable inactive dataset is available, a newly connected IQ sensor is auto-
matically recognized as a new component.
When an IQ sensor is connected to the system, the system checks whether an
It is always possible to replace components and assign a substitute
if the software state of the substitute component is as high as or
higher than the software version of the original component.
WARNING
If the universal transmitter DIQ/S 281 is opened during op-
eration, there is a danger to life due to possible hazard of
electric shock. The Universal Transmitter DIQ/S 281 may
only be opened while the mains voltage is switched off.
Secure the line voltage against being switched on again.
Only ever replace components while the
DIQ/S 281
is
switched off. Defective components are removed in the re-
verse order to the installation (see
chapter 3 I
NSTALLATION
).
The current calibration data of the IQ sensor is always stored in the
sensor. If an IQ sensor is connected that is ready for operation and
calibrated, this can be used immediately without the need for recal-
ibration.