here is the fed law on what the modulator has to do:
S7.9.4.1 A headlamp on a motorcycle may be wired to modulate either
the upper beam or the lower beam from its maximum intensity to a
lesser intensity, provided that:
(a) The rate of modulation shall be 240 <plus-minus> 40 cycles per
minute.
(b) The headlamp shall be operated at maximum power for 50 to 70
percent of each cycle.
(c) The lowest intensity at any test point shall be not less than
17 percent of the maximum intensity measured at the same point.
(d) The modulator switch shall be wired in the power lead of the
beam filament being modulated and not in the ground side of the
circuit.
(e) Means shall be provided so that both the lower beam and upper
beam remain operable in the event of a modulator failure.
(f) The system shall include a sensor mounted with the axis of its
sensing element perpendicular to a horizontal plane. Headlamp
modulation shall cease whenever the level of light emitted by a
tungsten filament light operating at 3000 deg. Kelvin is either less
than 270 lux (25 foot-candles) of direct light for upward pointing
sensors or less than 60 lux (5.6 foot-candles) of reflected light for
downward pointing sensors. The light is measured by a silicon cell
type light meter that is located at the sensor and pointing in the
same direction as the sensor. A Kodak Gray Card (Kodak R-27) is placed
at ground level to simulate the road surface in testing downward
pointing sensors.
(g) When tested in accordance with the test profile shown in
Figure 9, the voltage drop across the modulator when the lamp is on at
all test conditions for 12 volt systems and 6 volt systems shall not
be greater than .45 volt. The modulator shall meet all the provisions
of the standard after completion of the test profile shown in Figure
9.
(h) Means shall be provided so that both the lower and upper beam
function at design voltage when the headlamp control switch is in
either the lower or upper beam position when the modulator is off.
On Sep 15, 4:59 pm, paul annen <[email protected]> wrote:
> ummmmm if i am correct this device switches between the low and high beam
> correct??? high beam draws more amps then low.... therefore if the device is
> a 50% duty cycle and you normaly drive with low beams during daytime then
> your consumption would be GREATER then normal.... i still think it is a
> good safety add on, but i doubt that you will save any power....
>
> On Wed, Sep 15, 2010 at 3:20 PM, Kyle Munz <[email protected]> wrote:
> > Safety plus efficiency. I'll have to look into one of those
>
> > -Kyle
>
> > On Wed, Sep 15, 2010 at 1:25 PM, Gene Henry <[email protected]> wrote:
>
> >> On Wed, Sep 15, 2010 at 9:19 AM, <[email protected]> wrote: to Kisan
> >> Orders <[email protected]>
>
> >>> Does the pathblazer modulator reduce the current consumption of the
> >>> headlight circuit? Seems as if it would as it is no longer on
> >>> continuously.
> >>> As the owner of a bike with limited charging capacity it would be
> >>> another
> >>> plus.
>
> >>> Gene Henry
>
> >> Their reply:
>
> >> ----- Original Message -----
> >> *From:* Kisan Orders <[email protected]>
> >> *To:* [email protected]
> >> *Sent:* Wednesday, September 15, 2010 12:43 PM
> >> *Subject:* Re: Contact from KisanTech.com product: Head Light Modulator
> >> motorcycle: \'84 Honda Nighthawk
>
> >> Yes. The duty cycle is 50% so during daytime hi-beam would use half the
> >> current.
>
> >> --
> >> You received this message because you are subscribed to the Google Groups
> >> "Nighthawk Motorcycle Lovers!" group.
> >> To post to this group, send email to [email protected].
> >> To unsubscribe from this group, send email to
> >> [email protected]<nighthawk_lovers%[email protected]>
> >> .
> >> For more options, visit this group at
> >>http://groups.google.com/group/nighthawk_lovers?hl=en.
>
> > --
> > You received this message because you are subscribed to the Google Groups
> > "Nighthawk Motorcycle Lovers!" group.
> > To post to this group, send email to [email protected].
> > To unsubscribe from this group, send email to
> > [email protected]<nighthawk_lovers%[email protected]>
> > .
> > For more options, visit this group at
> >http://groups.google.com/group/nighthawk_lovers?hl=en.
--
You received this message because you are subscribed to the Google Groups
"Nighthawk Motorcycle Lovers!" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/nighthawk_lovers?hl=en.
