CAUTION!
Caution: backflow
Metering pumps are not absolutely leak-tight shut-
off devices.
Use a shut-off valve, a solenoid valve or a vacuum
breaker as an absolutely leak-tight shut-off device.
CAUTION!
Personnel injury and material damage / Unit starts
immediately
The pump can start to pump as soon as it is con‐
nected to mains voltage.
Only connect the device to the mains voltage when
all installation work has been completed and the
pumped chemicals can no longer escape in an
uncontrolled manner.
Install an emergency cut-off switch in the pump
power supply line or integrate the pump in the
emergency cut-off management of the system.
CAUTION!
Contact with chemicals
De-pressurise, drain and rinse the hydraulic part of
the unit before working on it.
Flushing connections
Both flushing connections can always remain
closed in normal mode.
In the event of an electrical accident, disconnect the mains cable
from the mains/power supply or press the emergency cut-off switch
fitted on the side of the system. If feed chemical is escaping, switch
off the pump by pressing
[Stop/Start]. If necessary ensure that the
hydraulic system around the pump is at atmospheric pressure.
Adhere to the safety data sheet for the feed chemical.
Information in the event of an emer‐
gency
Safety and responsibility
17
