Morse Code Sounds And Their Meanings - Progress Direct Systems Volt Tattler 2 Owner's Manual

Morse Code Sounds and their Meanings

Morse Audible Pattern
Character
R
H
L
E
?
Meaning
"Roger" indicates that the system is active after
power up. It also is used to indicate that a
calibration change has been accepted.
High indicates that the supply voltage is greater
than or equal to the high threshold.
In calibration modes 'H means that VoltTattler 2
is ready to program the high threshold.
Low indicates that the supply voltage is less than
or equal to the low threshold.
Low in calibration modes 'L' means that
VoltTattler 2 is ready to program the low
threshold.
Indicates that a long button press has been
recognized.
A question mark means that a programming
attempt has been rejected. Values attempted
were not in proper order (the high threshold less
than or equal to the low threshold). The
attempted threshold is not accepted and the
original threshold is maintained.
A continuous stream of question marks at power
up indicates that VoltTattler 2 has detected an
error in reading the calibration values at power
up. This may indicate a hardware problem. If
recalibration fails the microcontroller will need to
be replaced.