S.I.T.A. 400 Series, Инструкция по установке, использованию и обслуживанию

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5.3.1 Alarm Thresholds Settings
In this menu the user can set the alarm values:
Max Temperature Chamber: Visible in case of Rack Plus or SMP systems. This threshold level
define the max allowed water temperature in the UV chamber.
In case of flow absence the UV lamp(s) can increase the water temperature. This can damage
the lamps and the UV system. If the water temperature is higher then 40°C then the system
will shut off automatically and a message “SYSTEM OFF, HIGH TEMPERATURE” is
shown.
Factory Settings: 40°C
Pre-alarm Low Irradiation: Visible in case of Rack Plus or SMP systems. If UV output drops under
this warning threshold then a warning is registered. To avoid signal falling below safety threshold, carry
out immediate cleaning of lamp quartz sleeve or replace the lamp or improve water quality with
suitable pre- treatment.
Important! The sensor signal can be shown in a relative display (%) or in an absolute
display in W/m
2
. If the flow signal is available the system can calculate the UV Dose and so
the Irradiance will be expressed in J/m
2
. In all these case the threshold level has the same
unit of measurements.
Important! The warning threshold must be higher then the safety threshold.
Alarm Low Irradiation: Visible in case of Rack Plus or SMP systems. If UV output drops under this
threshold level then an alarm is registered.
Water that passes through the UV system when the irradiation is under this level can be non-
completely disinfected. Carry out immediate cleaning of lamp quartz sleeve or replace the
lamp or improve water quality with suitable pre- treatment.
Relays switch when irradiation is under this safety threshold.
Alarm Threshold
ENTER
Max Temperature
Chamber: 80°C
Pre-Alarm Low
Irradiation.: 500 J/m
2
Low Irradiation:
400 J/m
2