18
IV. ALARM MODES
the words LOW PRESSURE until the problem is corrected. If the alarm comes on and
the FAST LEAK icon appears (
see
figure 4-2
), this means the tire is loosing air at a rate
faster than 2.8 PSI in a 12 second period. The FAST LEAK icon will only be displayed
when a fast leak is detected and will go out after 18 seconds when the air quits leaking
from the tire. We strongly urge you to pull over and inspect the possible tire damage
immediately.
When the low pressure light illuminates, STOP and check your tire(s) as soon
as safely possible, and inflate them to the proper pressure.
Driving on a
significantly under-inflated tire can cause the tire to overheat and lead to tire failure.
Under-inflation also reduces fuel efficiency and tires tread life, and may affect the
vehicles' handling and stopping ability.
3. High Pressure Alarm:
The Doran 360RV monitor is capable of monitoring for a High Pressure Warning. This is
a warning that is displayed when the baseline air pressure is exceeded by 25%. When
this happens the Green light will go out. The audible beeper will beep once per second
and HIGH PRESSURE will be displayed on the monitor screen. This can be caused by
extreme heat generated into the tire.
When the High-Pressure warning appears, STOP and check your tire(s) as
soon as safely possible, and check for the possible cause.
This can happen
because of a dragging brake, bad wheel bearing, extreme temperature conditions, or
other mechanical failures that you might not detect. It is suggested that you check the
suspect tire position for a possible mechanical failure.
4. Lost Sensor Alarm:
The Doran 360RV monitor is capable of monitoring for
a lost sensor signal (
see
Figure 4-3
). If the monitor is
unable to receive a signal from a sensor for more than
18 minutes an alarm will be displayed for that sensor.
This does not mean that the sensor is missing, just
that a signal was not able to get to the monitor. This
could be from other signals interfering with the sensor signal, interference from
structures, or a poor signal. By FCC rules we must allow signals from other sources to
interfere with our signals. The Doran 360 series sensors, as well as all the other TMPS
systems on the market are not allowed to interfere with other radio frequency (RF)
signals.
Figure 4-3
