Grundfos Conex DIA-G Montage- Und Betriebsanleitung Seite 36

11.8.2 Defining sensor 1
Main menu > Setup
Submenu 1
Sensor 1
Sensor 2
In the "Sensor 1" submenu, the first sensor type is
selected.
11.8.3 Defining sensor 2
In the "Sensor 2" submenu, a second sensor type is
selected or, if there is no second sensor type, it is set
to "Off".
If both sensors are set to "Off", the
Note
following message is displayed:
No sensor
36
Submenu 2
Off
Chlorine 314-011
Chlorine 314-021
ClO 314-041
2
ClO 314-011
2
Ozone 314-071
Ozone 314-013
HCl 314-061
NH 314-031
3
Off
Chlorine 314-011
Chlorine 314-021
ClO 314-041
2
ClO 314-011
2
Ozone 314-071
Ozone 314-013
HCl 314-061
NH 314-031
3
11.8.4 Setting the function of the limit value relay
for the sensors
Main menu > Setup
Submenu 1 Submenu 2
Fail safe
Limit relay
Confirm. LV 2
In the "Limit relay" submenu, the switching direction
(fail safe) and confirmation of the limit value relay
can be set.
The fail safe selection defines whether the limit value
relays (two per defined sensor) operate as N.C. or
N.O. contacts. In case N.C. is adjusted, a cable
breakage leads to a fault.
• Fail safe
– On (N.C.)
– Off (N.O.).
In addition, the confirmation of the relays at limit
value 2 can be set. The selection then applies to
both sensors.
If limit value 2 is exceeded by one of the two
sensors, a sprinkling installation is usually triggered,
for example to bond the leaking chlorine.
Normally the relay for limit value 2 remains activated
until the measured value drops down below limit
value 2. However, it may be necessary to switch off
the sprinkling installation, for example to implement
countermeasures. In this case, limit value 2 can be
set to allow confirmation.
"Confirmation" means that the relay for limit value 2
is switched off again (and therefore also, for
example, the connected sprinkling installation), even
though the risk caused by the increased gas
concentration remains.
• Confirm. LV 2
– Yes
– No.
Limit value 1 can always be confirmed.
Warning
Only use the "Confirm. LV 2" function if
you are certain there is no major gas leak!
A switching delay for the relay for limit
Note
value 2 can be set in the relevant sensor
menu in the main menu.
Submenu 3
On (N.C.)
Off (N.O.)
Yes
No