12
EN
2.00.390C - 1 User’s Manual
D Ü P E R T H A L S i c h e r h e i t s t e c h n i k G m b H & C o . K G
Frankenstr. 3
63791 Karlstein, Germany
Version March 2022
page). Power may be supplied to the cabinet
exclusively
with the factory-installed socket and shipped, dedicated
cable.
Important
As soon as an error condition is detected, power to the
power socket is switched off, which is equivalent to turning
the refrigerator off. The same holds when the exhaust air
monitoring is disabled in the Configuration Menu 2.
Info
When enabled, the special power socket at the back of
the exhaust air control unit checks whether it receives a
loop-back signal from the connected storage cabinet. If it
is enabled, but does not detect a loop-back signal, a mes-
sage “Error Cool Line” is displayed at the second line of the
screen.
3.2.7 Regularly Checking/Replacing the Filters and Documenting It
Caution
The filters used in the exhaust air monitoring unit have to be
checked for proper state of wear at least once every quarter
and replaced at least once every year. The self-monitoring
functionalities of the unit support the user in this task. Failure
to service the filters properly and as scheduled puts material
and human resources at risk of severe damage and harm.
Caution
The filters have to be replaced immediately
• if a filter is broken;
• if a large spill happened (e.g., leaking container);
• if a maximum threshold was exceeded.
Among the menu options of the Configuration Menu 2 (see Sect. 3.2.4),
two relate to the filters: the check and the replacement of the filters.
These menu options allow accessing the routines for checking or re
-
placing the filters (see Sect. 3.7.9 - 3.7.11) even when the unit does
not alert the user to the fact that either the three-month check interval
or the twelve-month replacement interval expires. If the units emits
this alert, showing the corresponding line on the standard display (see
Display 12), pressing the START/SET key is sufficient to start the relevant
routine. For reasons of documentation integrity, both routines first re-
quest that the user enter his or her five-character identifier (to be entered
using the arrow keys and confirmed by pressing the START/SET key),
and then the routines are performed as described in Sect. 3.7.9 - 3.7.11.
This information on the user who checked or replaced the filters will be
recorded and saved to a filter service report (see below in this section).
Important
Whenever the filters are checked or replaced, the fan has to be
checked too. If it is dirty, damaged or shows signs of corrosion, it
has to be cleaned or the defects have to be corrected, if needed
by returning the unit for repair to the seller or manufacturer.
Filter Service Report
A report is established of every filter service (check for proper state of
wear or replacement), whether accessed from the Configuration Menu 2 or
kicked off by the monitoring unit because the scheduled date is reached.
To view the reports saved to memory, press the
arrow key when the
standard display (see Display 1) shows. A screen as reproduced in Dis
-
play 9 appears.
The first report entry displayed is the most recent one (a filter replacement
report in the example to the right). The lines show the date of the filter
service, the identifier of the person who performed the service operation
and entered it on this occasion, and the weight of the activated carbon
* FILTER REPLACEM. *
Date :04.07.09
Id :WR901 <->
Wght :2160g
Display 9
Summary of Contents for HNA-18 II ATEX F
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