10.2.3 Configuration and adjustment
When optional alarms are fitted to a BA354E Rate
Totaliser the configuration menu is extended as
shown in Fig 12. The additional functions appear
between the ‘C- - P’ and ‘5CALE-t’ functions. For
simplicity, Fig 13 only shows the additional
functions for alarm 1, but alarm 2 has identical
functions.
The following table summaries each of the alarm
configuration functions and includes a cross
reference to more detailed information. Again only
the functions on Alarm 1 are listed, but alarm 2 has
identical facilities.
Summary of alarm configuration functions
Display
Description of function
'EnbL’
Alarm enable
Enables or disables the alarm without
changing the alarm parameters.
See section 10.2.4
‘tYPE’
Type of alarm
Defines whether the alarm operates on
the rate or total display.
See section 10.2.5
'5Pr1'
Alarm setpoint 1
or
Adjusts the alarm setpoint. The alarm
‘5Pt1’
is activated when the selected display
(rate or total) equals the setpoint.
See section 10.2.6
'Hi.Lo'
Alarm function
Defines the alarm function as High or
Low.
See section 10.2.7
'no.nC' Normally open or normally closed
output.
Sets the alarm output open or closed in
the non-alarm condition.
See section 10.2.8
'H5tr'
Hysteresis
Adjusts the alarm hysteresis. Only
available on rate alarms.
See section 10.2.9
'dELA'
Alarm delay
time
Introduces adjustable delay between
the display equalling the setpoint and
the alarm output being activated.
See section 10.2.10
'5iL'
Alarm silence time
Defines the time that the alarm output
remains in the non-alarm condition
following acceptance of an alarm.
See section 10.2.11
‘FL5H’
Flash display when alarm occurs
When enabled and an alarm occurs,
alternates the rate or total display,
depending upon which has caused the
alarm, between the process value and
the alarm reference ‘ALr1’ or ‘ALr2’.
See section 10.2.12
'AC5P'
Access setpoint
Sub-menu which enables direct access
to the alarm setpoints from the Rate
Totaliser display mode and defines a
separate security code.
See section 10.2.13
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