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5.2.2 Synchronisation
When terminals 7 & 8 are connected together
the time displayed by the BA364ND will be set to
the preprogrammed reset time. The clock
function will be inhibited until the contacts are
opened when the clock will restart. To achieve
reliable resetting the contacts must close for at
least one second. This function enables one or
more BA364ND clocks to be synchronised with a
master clock once every 24 hours.
Any switch located in the safe or hazardous area
as shown in Fig 5.1 may be used for
synchronisation.
5.2.3
Optional control outputs
The BA364ND can be supplied with two isolated
solid state control outputs. Each output may be
programmed to turn on and off twice during a
twenty four hour period.
5.3 PROGRAMMING
Throughout this manual push-buttons are shown
in italics e.g.
P
or
Up
push-button, and legends
displayed by the instrument are shown within
inverted commas e.g. 'SEt' and ' dISPLAY'.
5.3.1 Accessing programme functions
Access to the programme menu is obtained by
operating the
P
and
E
push-buttons
simultaneously. If the BA364ND is not protected
by a security code the first parameter ‘Function’
will be displayed. If a security code other than
the default code 0000 has already been entered,
the instrument will display 'COdE'. Press
P
to
clear this prompt and enter the security code for
the instrument using the
Up
or
Down
push-button
to adjust each digit, and the
P
push-button to
move control to the next digit. If the correct code
has been entered pressing
E
will cause the first
parameter ‘Function’ to be displayed. If an
incorrect code is entered, or a push-button is not
operated within ten seconds, the instrument will
automatically return to the display mode.
Once within the main programme menu the
required parameter can be reached by scrolling
through the menu using the
Up
and
Down
push-
buttons as shown by the clock programme
structure shown in Fig 5.2.
This section summarises all the clock
programmable parameters including those for the
optional control outputs. When read in
conjunction with Fig 5.2 it provides a quick aid for
programming the instrument. If more detail is
required, each section contains a reference to a
full description of the function.
