Hach-Lange FILTRAX eco - Manual (Page 24)

24
Installation
3.4 Electrical Connections
D A N G E R
Do not connect the electrical supply to the mains until the instrument is
completely wired and protected against short circuits.
Sufficiently protect the electrical power supply against short circuits.
For the external power supply, always connect a residual-current circuit
breaker (trip current max.: 30 mA) between the mains and the system.
If the instrument is to be installed outdoors, connect a surge arrester
between the mains and the system.
If the mains plug of the power supply cable is removed, a suitable
double-pole one-way switch must be installed immediately next to the
display unit with clear labeling for the power supply.
Products intended by the manufacturer for outdoor use offer a higher
level of protection against the penetration of liquids and dust. If these
products are connected to a mains outlet with a cable and plug rather
than a permanently connected cable, the plug and outlet are much more
susceptible to liquid and dust penetration. The operator must sufficiently
protect the plug and outlet against liquid and dust penetration in
accordance with local safety regulations. If the instrument is to be used
outdoors, it must be connected to a suitable outlet with a protection type
of at least IP44 (splash protection).
WA R N I N G
Only qualified experts may perform the tasks described in this section of
the manual, in compliance with all locally applicable safety regulations.
N O T I C E
Use only earthed sockets for the connection of this device to the power
supply.
If it is not clear whether the sockets are earthed, have this checked by a
qualified electrician.
In addition to supplying power, the power plug also serves to isolate the
device quickly from the mains where necessary.
The entire measurement system has two power plugs (measurement
device and control unit). During the disconnection from the mains, it
must be made sure that the correct power plug is pulled (e.g. labeling of
the sockets).
This is recommended for long-term disuse and can prevent potential
dangers in the event of a fault.
Therefore make sure that the sockets to which the device is connected
are easy to reach by each user at all times.
N O T I C E
On removal of the power plug (fixed installation of mains supply lead), a
suitable bipolar circuit breaker must be installed!
N O T I C E
Pull out the power plug before opening the device.