YSI IQ S ENSOR N ET System 182 - Manual (Page 128)

What to do if ... System 182
8 - 2 ba76022e01 12/2011
8.3 Replacing system components
8.3.1 Replacing passive components
Passive components include all components that the controller cannot
recognize.
These include:
 MIQ power supply modules
 DIQ/JB
 DIQ/CHV
 Cables (SNCIQ, SACIQ).
Warning
If the IQ S ENSOR N ET Universal Transmitter is opened and the MIQ/
PS power supply module is operating, there is a danger to life due
to possible hazard of electric shock from line voltage. Before
opening the Universal Transmitter, switch off the system and, if
necessary, all external relay circuits that present a hazard of
electric shock and secure the system against being switched on
again.
Only ever replace components when the system is switched off.
Defective components are removed in the reverse order to the
installation (see chapter 3 I
NSTALLATION ).
8.3.2 Adding and replacing IQ sensors
Inactive datasets of
IQ sensors
If an IQ sensor is removed from the system, its settings remains stored
in the Universal Transmitter as an inactive dataset. A dataset contains
the following information:
 Serial number of the IQ sensor (and, with it, the type of sensor)
 Display position
 All sensor settings
 All characteristics of the link with an output.
If no suitable inactive dataset is available, a newly connected IQ sensor
is recognized and added automatically.
Note
The IQ S
ENSOR N ET Universal Transmitter can display and
administrate up to two main measured parameters. If necessary, an
inactive dataset has to be erased to be able to add a new sensor.