en
8.3
Connection of signal transmitters
within potentially explosive atmo-
spheres
8.4
Activating the device
3
PE N L1
Fig. 6: Terminals for mains connection
8.5
During operation
14
DANGER
Risk of explosion due to incorrect connection!
If the connected float switch is installed within a hazardous area (ex-
zone), there is a risk of explosion if the connection is faulty!
• Connect the float switch using an Ex cut-off relay!
• Connection must be carried out by a qualified electrician.
In order to activate the switchgear, connect the battery and establish the mains connec-
tion.
Connect the battery (only DrainAlarm)
✓
Installation carried out correctly.
✓
Alarm signal connected.
✓
Float switch installed and connected.
✓
Switching point set correctly.
1.
Remove the housing cover.
2.
Remove the grommet from the plus contact (+) of the battery.
3.
Connect the blade connector to the plus contact (+) of the battery.
4.
Reattach the housing cover.
⇒
Rechargeable battery installed.
Establish mains connection to the attached plug
The switchgear comes with a connection cable and an attached CEE7/7 plug as standard.
✓
Battery connected (only DrainAlarm).
✓
Housing cover installed, switchgear closed.
✓
Type "E" or "F" socket available.
1.
Insert plug into socket.
⇒
Switchgear starts. All LEDs light up for 2 s.
2.
LEDs show the current operating status.
▶
Switchgear connected.
Establish the mains connection as a fixed connection
Alternatively, you can also disconnect the factory-installed connection cable and connect
the switchgear to a sub-distribution.
✓
Battery connected (only DrainAlarm).
✓
Mains isolator (e.g. main switch) available on-site.
✓
Mains isolator switched off.
✓
3-wire connection cable available on-site.
1.
Remove the housing cover.
2.
Disconnect pre-installed connection cable (see section "Structure [" 6]").
3.
Connect the 3-wire connection cable to the terminal (L, N, PE).
4.
Reattach the housing cover.
5.
Switch on mains isolator.
⇒
Switchgear starts. All LEDs light up for 2 s.
6.
LEDs show the current operating status.
▶
Switchgear connected.
Make sure the following points are observed during operation:
•
Keep the switchgear closed and secure it against unauthorised opening.
•
Switchgear attached in a flood-proof manner (protection class IP54).
•
Not exposed to direct sunlight.
•
Ambient temperature: -20 to 50 °C.
NOTICE! The transformer in the switchgear can heat up to 70 °C during operation. The
housing also heats up as a result.
Installation and operating instructions • Wilo DrainAlarm/DrainAlarm FIRST • Ed.01/2024-08
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