Evoqua WALLACE & TIERNAN Barrier M 1200, Operating Manual

Page: 46 / 110

46
WT.090.370.000.DE.IM.0715
Operation
Barrier M
5.
LED A number of yellow, red and green LEDs are provided, depending
on the unit specifications. The LEDs have the following meanings:
Power The "POWER" LED lights up green when
the emergency OFF main switch is swit-
ched on.
UV
UV active The LED "UV " lights up green when the
UV intensity in the chamber (UV reactor)
has exceeded the preset minimum value.
(When switching on, wait until the heat-up
period of approx. 4 minutes has elapsed!)
UV
UV pre-alarm
The LED "UV " lights up yellow when the
UV intensity in the chamber reaches 103 %
of the min. intensity set in the service menu.
A voltage-free relay contact is activated at
the same time.
UV
UV Alarm The LED "UV " lights up red when the
UV intensity in the chamber has fallen
below the preset minimum value. A vol-
tage-free contact is activated at the same
time. Optionally, the lamps (optional time
delay) can still be additionally switched off.
Temperature
pre-alarm The LED "TEMPERATURE" lights up yel-
low when the advance water temperature
alarm value entered in the service menu is
exceeded. A voltage-free relay contact is
activated at the same time.
Temperature
alarm The LED "TEMPERATURE" lights up red
when the water temperature measured at
the PT100 temperature sensor rises above
the set value or when the max. temperature
permanently set in the control cabinet is
exceeded. The lamp(s) is/are automati-
cally switched off. A voltage-free contact is
activated at the same time. The green LED
"UV " disappears. The status display of
the output relays in the operator menu indi-
cates which of the two temperatures has
led to the alarm.
Flow rate alarm The LED "FLOW" lights up red if the measu-
red flow rate value falls below the minimum
or exceeds the maximum limit value. At the
same time, the lamps are automatically
switched off (optional time delay) and a vol-
tage-free contact is activated. The green
LED "UV
" disappears.