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2.6 OPTIONAL ALARMS
2.6.1 Programming and adjustment
The BA364D can be supplied with two solid state
single pole alarm outputs which may be
independently programmed as high or low, total
or rate alarms with normally open or normally
closed outputs. See section 1.9.5 for details.
For simplicity Fig 2.4 only shows the
programmable functions for one alarm output.
The second output is identical.
The following table summarises each of the
alarm programme functions and includes a cross
reference to more detailed information. Again
only the functions on alarm AL1 are listed.
Summary of programmable alarm functions
Display Description of function
'EnbL'
Alarm enable
Enables or disables the alarm
function without changing the
alarm parameters.
See section 2.6.2
'tYPE'
Type of alarm
Defines whether the alarms
operate on the total or the rate
display.
See section 2.6.3
'SPt1'
Alarm setpoint 1
or ‘SPr1’
Adjusts the alarm setpoint. The
alarm is activated when the display
equals the setpoint.
See section 2.6.4
'HI.LO'
Alarm function
Defines whether the alarm has a
high or low function
See section 2.6.5
'no.nc'
Normally open or normally
closed output
Determines whether the single
pole alarm output is open or closed
in the non-alarm condition.
See section 2.6.6
'HStr'
Hysteresis
Adjusts the alarm hysteresis. Only
available for rate alarms.
See section 2.6.7
Display Description of function
'dELA'
Alarm delay
time
Adjusts the delay between the
display equalling the setpoint and
the alarm output being activated.
See section 2.6.8
'SIL'
Alarm silence time
Defines the time that the alarm
output remains in the non-alarm
condition following acceptance of
an alarm.
See section 2.6.9
'AcSP'
Access setpoint
Sub-menu that enables direct
access to the alarm setpoints from
the display mode and defines a
separate security code.
See section 2.6.10