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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
3.5 Operation on Battery, Switching on and off with and without
Battery
In the event of power supply failure, the control unit can be operated on
the internal battery (accumulator) for approx. 3 hours.
This is why, provided the battery is sufficiently charged, pressing the On/
Off switch will not turn the unit off. When the switch was pressed, the
battery will continue to supply power to it. To turn the monitor off defi
-
nitely, i.e. to disconnect power to it from both the mains network and the
battery, hold down the STOP/RESET key for approx. 5 seconds when the
standard display shows on the screen. This causes the message “Please
disconnect power to unit!” to appear. Do as you are asked to: switch the
monitor off using the On/Off switch and unplug the mains plug. Wait a
short time for the monitor to switch itself off.
If the unit is switched off without holding down the STOP/RESET key
first, this counts as a power supply failure. It will trigger an error message
and close the dry contacts (see Sect. 3.1 and 3.3). In case the On/Off
switch was pressed first to switch the monitor off, it will indeed switch
itself off when the STOP/RESET key is then held down. However, the
error message that the switch caused has to be confirmed when it is
switched on again.
If the battery is charged to a sufficient level. it is possible to switch the
unit on while it is not connected to mains power, by pressing the START/
SET key. If the battery voltage drops below a factory-set threshold, the
monitor switches itself off automatically. Turning on and operating the
module without mains power will trigger a power supply error message
as well, which will have to be confirmed.
3.6 Error and Menu Change Reporting
Error conditions and changes applied to the configuration menus are
recorded and saved to memory. They can be viewed after pressing the
arrow key in the standard display (see Display 11). You can scroll
through the displayed listing by pressing the
and
arrow keys. The
maximum number of entries saved to memory and displayed in this list-
ing in chronological order is 50. When the maximum number is reached,
any further report will overwrite the oldest one in memory. Deleting the
entries in memory is possible from the Supervisor Menu.
A report entry contains information on the type of entry, i.e. error or menu
change, the date, and the time of day. The title line of the listing shows
the number of the report currently looked at (before the slash) and the
total number of entries in memory (after the slash). If the entry is an error
report, the error code (E1 or E2) is shown. These error codes have the
following meaning:
E1 Power Supply Error
E2 Exhaust Air Error
The letter “M” stands for the report of a modification of the configuration
menus. As is indicated by the symbolized arrow to the right, pressing the
arrow key, when this entry is selected, will show additional informa
-
tion. This information is a list of all settings of the configuration menus.
All the options are given with the indication of their status, changed or
unchanged at the moment the modification record was generated. The
record for a modification is generated only when the operator quits the
configuration menus, and it includes all settings, whether changed at
that point in time or remained as is.
The following overview is meant to assist you in interpreting the change
* Report 018/42 *
E1 22.06.08 13:32
>M 22.06.08 13:41->
E2 24.06.08 08:09
Display 11
Summary of Contents for HNA-18 II ATEX F
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