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8.1 Self Diagnosis System (SDS)
As part of the SDS Control unit, the
Pumpfix
®
F automatically tests its pumping
system once per month. As part of this self
test, the pump will run for two seconds. If the
Pumpfix
®
F detects any problems with its
operation during this monthly test, it will
display the problem on the control unit as
described in Chapter 7. This is an important
reason that the Pumpfix
unplugged before maintaining or inspecting
the unit. With the Pumpfix
there is no risk of unintended activation of
the pump.
8.2 Battery life and replacement
While the Pumpfix
F is connected to a
®
suitable power supply, the unit continuous-
ly checks the condition of the two batteries.
If at time of initialization the batteries hold
under 12.5 Volts total power, the Pumpfix
F will not initialize itself. In this case, unplug
the Pumpfix
®
F control unit from its power
source, check and replace the batteries if
necessary and then reconnect the control
8. Additional functions
unit to its power source. The estimated life
of new batteries is four years. Batteries
certified for use with the KESSEL Pumpfix
F are Duracell 9 Volt Type MN 1604/6LR61
(Requirement - 2). If discarding batteries,
please do so properly.
8.3 Battery function
The purpose of the batteries is to notify the
®
F always be
user of a power failure by LED and audible
alarm notification. Although during a power
®
F unplugged
failure the Pumpfix
de protection against backwater due to its
free hanging backwater flap, the pump of
the Pumpfix
Please note: The auxiliary device is
certified for up to 42 Volts / 0.5 A.
®
®
F will continue to provi-
®
F will not operate.
18
®
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