Revision 1 150 9/10/2019
Table 8-2: Alarms
Triggered if the temperature experienced by
the measuring sensor’s on-board temperature
sensor exceeds the set-point value (in
o
Triggered if the temperature experienced by
the sensor block’s on-board temperature
sensor goes below the set-point value (in
o
Triggered if the sensor current rises above the
set-point value. It is probable that there is likely
a problem with the sensor block or the sample
chamber is dirty. The set-point for this alarm is
configured at the factory and should not be
Triggered if the unit is no longer able to
communicate between the motherboard and
the sensor block. If this alarm triggers, the unit
will no longer function correctly
Triggered if the voltage from the on-board clock
battery (which maintains the analyzer’s real-
time clock should the power fail), drops below a
hard-coded value. In addition, it will also trigger
if the time and date in the real-time clock varies
from the time and date of the connected PC by
more than a certain amount.
Triggered if the motor advances the tape more
than a certain number of rotations without
getting a corresponding signal from the pulse
counter that controls the tape advance. If this
alarm triggers, it will generally indicate a
problem with the encoder. The length of the
maximum tape advance can be set by the user,
but it is advised to leave this set at the factory
The analyzer can be configured with an
optional optical low tape sensor. If this alarm is
triggered, it means that the tape is very low and
should be replaced soon. The Low Tape alarm,
is triggered when there is approximately 15 feet
of tape remaining on the reel.
Triggered based on the amount of tape that is
calculated to be remaining by the pulse
counter. The alarm will trigger when the length
of tape calculated to be remaining, in feet,
drops below the number set in this field. For
this alarm to work correctly, it is essential that
the length of tape in the reel be reset to the
correct length value (usually 300 or 350 feet) in
the Global screen whenever a tape is replaced.
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