OPTION 6
SUPPLEMENTAL INFORMATION
TIMEWISE 798A
i
NOTICE!
Special Firmware for
Setting CASTs with 0.01 MPH Resolution
Option 6 firmware in your Timewise 798A allows you to set average speeds (CASTs) with a
resolution of .01 miles per hour. All other functions in the 798A operate as usual.
Setting Speeds
with 0.01 MPH
Resolution
In a standard 798A, the “+ / –
.01
” toggle switch is inactive when setting a
SPEED
or
NEXT
SPEED
value. The “
.01
” toggle switch is made inactive because the displays show a
maximum resolution of
0.1
mile per hour.
Although is it rare for a rally speed to be given with higher resolution, there may be
situations (such as emergency speeds that are a percentage of the original CAST) when
setting a speed with
0.01
mile per hour resolution is desired.
With option 6 firmware, the adjustment lock-out of the “+ / –
.01
” switch is removed, and
you can set the non-visible “hundredths” digit (the “
– – . – x
” digit) of the
SPEED
or
NEXT
SPEED
parameters. (This extra resolution is not available in the 0 to 399 speed range.)
When you adjust the hundredths digit for the
SPEED
or the
NEXT SPEED
to any value other
than “
0
”, the far right radix point in that speed display will illuminate. In addition, as of
version 5.004 firmware, the hundredths digit will momentarily flash every four seconds in
place of the other digits of the set speed. In case you lose track of the numerical value of the
hundredths digits, just wait for up to four seconds and the hundredths digit will be briefly
shown in the display.
You can also see the hundredths digit of the
SPEED
display in the driver’s
AUXILIARY
display. To do so, display the current CAST in the driver’s
AUXILIARY
display. On 798A’s
with option 6 installed, the displayed CAST will be shown to
0.01
miles per hour resolution.
If you increment (or decrement) the
SPEED
or the
NEXT SPEED
’s hundredths digit 10 times,
you will see the tenths digit change appropriately.
A quick method to set a speed’s hundredths digit to zero (“
xx.x0
”) is to change any other
digit in the speed display. When you do this, the 798A will automatically “set to zero” the
hundredths digit of the speed display being adjusted. That is, whenever a “+ / –
10.00
”,
“+ / –
1.00
”, or “+ / –
0.1
” toggle switch is activated (while adjusting a speed), the 798A
automatically truncates the speed to
xx.x0
resolution.
As a result, in order to set a speed with a hundredths digit value other than “
0
”, you must first
set all the other digits to their required values. Then, lastly, adjust the hundredths digit. Were
you to set the hundredths digit, and subsequently change any other digit in that speed display,
the hundredths digit will automatically be returned to zero (“
0
”).
When you execute a CAST, the hundredths digits are transferred between the
NEXT SPEED
and
SPEED
displays. Thus, you can set a next speed with high resolution and transfer that
value to the active speed upon a CAST. Likewise, the value in the
SPEED
display is
transferred to the
NEXT SPEED
display...including the non-visible hundredths digit.
