Section #1 - Getting Started -
Page 15
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Listening to the TruSpeed
The TruSpeed emits a variety of beeps and tones during use. The sounds vary and
depend on what the instrument is doing. The table below lists and explains each
of the sounds.
Understanding Error Conditions
Although it’s rare, error conditions can occur during a measurement attempt or in
the system hardware. To make sure that you never get an erroneous speed
reading, the TruSpeed monitors both the system hardware and the measurement.
When the instrument detects an error condition, it displays an error code instead
of a measurement.
Sound
Explanation
3 Low-Pitched and
1 High-Pitched Beeps
At Power ON.
Low-Pitched Growl The instrument is attempting to lock onto a target.
1 Low-Pitched and
2 High-Pitched Beeps
The instrument was not able to complete the intended
speed measurement due to an error. An error code will be
displayed to the indicate the nature of the error
.
High-Pitched
Triple Beep
The laser’s return sensor detected interference from a
light source such as a xenon headlight
or laser jammer device. The speed reading is valid.
High-Pitched
Oscillating Ring
Jam tone. The instrument’s laser return sensor is being
overwhelmed by interference from a light source such as
a headlight or laser jammer device.
High-Pitched
Single Beep
The instrument successfully completed the intended
speed measurement.
Speed Limit Edit Feature is active: (1) When editing the
speed limit, the speed limit was stored. (2) During a speed
measurement, the instrument successfully completed the
intended measurement and
it was below the speed limit.
Low-Pitched
Double Beep
Speed Limit Edit Feature is active, when editing the speed
limit, you entered an invalid speed limit
.
High-Pitched
Double Beep
Speed Limit Edit Feature is active: During a speed
measurement, the instrument successfully completed the
intended measurement and
it was above the speed limit.
Low-Pitched
Single Beep
At Power OFF.