4
4.8
Select automatic daylight saving: ‘dS’
Daylight saving automatically advances the displayed time by one hour on
the EEU agreed date in March and retards it by one hour in October.
Using the
Up
and
Down
button select the ’dS’ function from the
programme menu and press
P.
This will reveal if daylight saving is ‘On’ or
‘OFF’. Operating the
Up
or
Down
button will toggle between the two
options. When set as required press
E
to return to the programme
menu.
4.9
Turn clock off: ‘P.dn’
To extend battery life the clock may be switched off when not in use. All
settings apart from the time and date will be stored in permanent memory.
Select ‘P.dn’ from the programme menu and press
P
which will result in a
‘0000’ prompt with the first digit flashing. To confirm the instruction enter
the password ‘SurE’ using the
Up
and
Down
button to set each digit and
the
P
button to transfer control to the next digit. S is entered as 5. When
‘SurE’ is displayed, pressing
E
will turn the clock off.
4.10 Define security code: COdE
Access to the programme menu may be protected by a user selectable
four digit numeric security code. New clocks are programmed with the
default security code 0000 which allows unrestricted access without
entering a code.
To enter a new security code select ‘COdE’ from the menu and press
P
which will result in the existing security code being displayed with one digit
flashing. Each digit can be changed using the
Up
and
Down
buttons and
the
P
button to move to the next digit. When the required code has been
entered, press
E
to return to the programme menu. The revised security
code will be activated when the clock is returned to the display mode.
If the security code is lost, access to the programme menu can be
obtained by moving the internal security link to the override position as
shown in Fig 8. Access to this link is obtained by removing the clock rear
panel as shown in Fig 9. The security code can then be viewed by
selecting ‘CodE’ from the programme menu and pressing
P
.
Fig 8 Location of security override link
5.
ACCESSORIES
5.1
Tag number
The BA369 clock can be supplied identified by a tag number thermally
printed on a self adhesive label.
6.
MAINTENANCE
The clock should be regularly inspected to ensure that it has not been
damaged. Frequency of inspections depends upon environmental
conditions, but initially we recommend that this should be done annually.
WARNING
No attempt should be made to repair a faulty BA369
clock. Suspect clocks must be returned to BEKA
associates or to your local agent for repair
.
6.1
Installing a replacement battery
The internal intrinsically safe battery will power the BA369 clock
continuously for at least two years, when the battery requires replacing the
display digits will flash, after which the clock will continue to operate for
about five hundred hours before automatically switching off.
BA491 replacement battery units are available from BEKA associates and
our agents. At 20
o
C replacement batteries only lose about one percent of
their charge each year, so it is practical to stock a spare on-site but they
must be conditioned before installation in the BA369 clock otherwise the
clock may not start. See instructions supplied with BA491 battrey.
WARNING
To maintain the BA369 ATEX certification only a BEKA
BA491 component certified battery should be installed in
the clock. No attempt should be made to recharge or to
open the battery assembly
The discharged battery may be removed and the replacement fitted while
the BA369 clock is installed in the hazardous area. Fig 9 illustrates the
replacement sequence.
a.
Remove the synchronising terminals from rear of the clock by
gently pulling.
b.
Remove the six screws securing the rear panel and lift it off.
c.
Gently pull out the horizontal printed circuit board.
d.
Remove the two screws securing the BA491 battery and un-plug
the assembly.
e.
Condition the new BA491 battery as described in the
instructions supplied with the battery.
Install the new battery
in the clock and replace the printed circuit board enclosure,
ensuring that connectors are correctly aligned. Refit the rear
panel and synchronising terminals.
f.
Finally turn the clock on as described in 3.2 (e) and set the
displayed time and date. All other parameters will remain
unchanged
Fig 9 Replacement of internal battery
6.2
Disposal of used batteries
The BEKA BA491 battery contains Lithium Thionyl Chloride cells which
should not be included with standard industrial waste. Do not incinerate.
More information on disposal is available from The British Battery
Manufacturers Association www.rebat.com
7.
GUARANTEE
Clocks which fail within the guarantee period should be returned to BEKA
associates or our local agent. It is helpful if a brief description of the fault
symptoms is provided.
8.
CUSTOMER COMMENTS
BEKA associates are always pleased to receive comments from
customers about our products and services. All communications are
acknowledged and whenever possible, suggestions are implemented.
Issue 5 9
th
December 2011
