English (GB)
5
2. General information
These installation and operating instructions contain
all information important for users of the
Conex
®
DIS-D / Conex
®
DIS-PR
:
•
technical data
•
instructions on commissioning, use and
maintenance
•
safety information.
Should you require further information or should you
encounter problems that are not handled in sufficient
depth in this manual, please contact Grundfos. We
shall be pleased to support you with our
comprehensive know-how in the fields of measuring
and control technology as well as water treatment.
We always welcome suggestions on how to optimise
our installation and operating instructions to satisfy
our customers.
3. Applications
The
Conex
®
DIS-D
instrument amplifier and
controller is suitable for measuring chlorine (Cl
2
), or
chlorine dioxide (ClO
2
) or ozone (O
3
) in drinking
water, service water or swimming-pool water and for
controlling the measured variable using appropriate
actuators within the applications described in this
manual. Only one of the measured variables (Cl
2
or
ClO
2
or O
3
) should be existent in the water, as the
measurement is carried out non-selectively.
The
Conex
®
DIS-PR
instrument amplifier and
controller is suitable for measuring pH and redox in
drinking water, service water or swimming-pool water
and for controlling these variables using appropriate
actuators within the applications described in this
manual.
4. Safety
4.1 Obligations of owner
The owner agrees that only persons complying with
these requirements are allowed to work with the
described device:
•
are acquainted with the regulations concerning
working safety and accident prevention
•
have been trained in the use of the device
•
have read and understood the warning
information and handling symbols.
The owner is also responsible for ensuring that this
manual is kept in the immediate vicinity of the device
and is always available for the operating personnel.
4.2 Avoidance of danger
Warning
Other applications are considered as non-
approved and are not permissible.
Grundfos cannot be held liable for any
damage resulting from incorrect use.
Warning
Do not dismantle the device components!
Cleaning, maintenance and repairs must
only be carried out by authorised
personnel!
The local safety regulations must be
observed!
Switch off the power supply before
connecting the power cable and relay
contacts!
Do not open the device!
Maintenance and repair must only be
carried out by authorised personnel!
Caution
The mounting location must be selected so
that the housing is not subjected to
mechanical loading.
Check that all settings are correct before
starting up the device!
