ELP AM Series - Manual 20112 – 05/12
Copyright Delta-UV
©
Page 22
F. TROUBLESHOOTING
The screen flashes when there is an alert message.
The alert messages are always shown on the secondary display and are independent of what is displayed on the
main display unit.
Display
Meaning of the alert
Solutions
This message appears when the
temperature of the reactor is excessive or
the reactor’s cover is removed.
The lamps are stopped automatically.
Check that enough water is flowing through the
installation and the cover is correctly closed.
To reset the default : press ‘OK’
This message appears when one or
several lamps are faulty.
The numbers show which of the lamps
are faulty.
Diagnose the cause of the breakdown.
These 2 alert messages can be cleared by pressing on the key "OK".
It is preferable to carry out a maintenance operation before clearing the fault.
This message appears when the intensity
of the UVC radiation falls below the
pre-alarm threshold.
Check that the quartz sleeves are clean.
Check that the UV sensor is clean.
N.B.: when the lamps have been operating for a certain number of hours, this message appears naturally (
normal wear of the lamps
)
This message appears when intensity of
the UVC radiation falls below the main-
alarm threshold.
Check that the quartz sleeves are clean.
Check that the UV sensor is clean.
Chang the UV lamps.
These 2 messages cannot be cleared unless the problem has been resolved.
G. ALARM CONTACTS
The main-alarm fault is indicated by snap contacts on the monitor which are transmitted
to terminal strips (see the wiring diagram in order to identify them).
Notice: these snap contacts are dry contacts.
No
One of the lamp operating
indicators is not lit
Invert the lamp connector linked to
the unlit operating indicator with another one
.
Is the same lamp still off ?
Yes
The original lamp is out of
order.
Change it.
The ballast
linked to the unlit lamp
is out of order.
Change it.
