SUPPLEMENTAL INFORMATION
OPTION 11
ii
TIMEWISE 798A
Disabling the
AutoCAST
option
As just discussed, the preset calculated time (set in the
AUXILIARY
display while the
TIME– –ODO
toggle switch is in the
TIME
position) must be hidden from view to enable the
AutoCAST function. That is, if the preset calculated time value is not hidden, the AutoCAST
function will not be executed.
Another way to disable the AutoCAST function is to set a preset distance to a value that is
far outside the expected distance the main odometer will reach (e.g., 900 miles).
A third way to disable the AutoCAST function is to hide from view either the preset distance
or the preset speed. If either the preset distance or the preset speed are hidden, an AutoCAST
will not occur when the preset distance and main odometer match. If you make both the
preset distance and preset speed visible after the main odometer has counted beyond the
preset distance, the AutoCAST will still not be executed.
The original
Preset Load
function can
still be used
The AutoCAST function does not preclude the use of the original
Preset
function. The same
distance and speed values you set for the AutoCAST, as well as the preset calculated time,
can be loaded into the 798A via the
Preset
function’s “
SHIFT
–
CAST
to
Load
” procedure.
See page 52 of the instruction manual for a detailed description of the
Preset
function.
Please take note that after setting predetermined values for use with the original
Preset
function, it is possible to accidentally execute an AutoCAST should the main odometer
eventually match the
Preset
distance. As stated earlier, “hiding” the preset distance or preset
speed will disable the AutoCAST function altogether.
The AutoCAST
distance
resolution
Note that the AutoCAST preset distance can be set to a resolution of “thousandths of miles”.
However, even though the thousandths digit can be set to something other than a “0”, the
AutoCAST function only uses “hundredths of miles” when it compares the preset distance to
the main odometer. The “thousandths” digit is completely disregarded by the AutoCAST
function.
The reason for allowing a preset distance to be set to “thousandths” is so the original
Preset
function can load such a precise value into the main odometer.
But why, you may ask, does the AutoCAST option only use “hundredths” resolution when
making the mileage comparison? Here is the reason…
A magnet sensing transducer system that uses two magnets mounted on a wheel generally
requires that you set an odometer factor somewhere around 065000. If one of the two
magnets should dislodge during the rally, the factor would need to be doubled...in this case
to 130000...so you could continue running.
With a factor of 130000, each pulse adds 0.00130000 to the odometer. Therefore, the
odometer's counting sequence, starting from 0.000 miles, for example, would be (internal
digits are in parentheses):
0.000 (00000)
0.001 (30000)
0.002 (60000)
0.003 (90000)
0.005 (20000)
etc.
