Booma-RC Hidden Ignition Switch User manual

Hidden Ignion Switch
Booma RC
1
www.boomarc.com

Congratulaons for choosing the Booma RC Hidden Ignion
Switch.
This switch is the result of feedback from our company pilots and
was designed for giant scale RC enthusiasts by a giant scale RC
enthusiast. The hiddend switch is the world’s rst 2 stage fail safe
ignion switch in a compact and aordable package.
Before you install the hidden switch please take the
me to read these instrucons. A few simple steps
will have you successfully using this advanced product
in no me at all.
Features:
- Microprocessor control - of Opcal Isolated digital switching circuit.
- Fail Safe Switching - follows fail safe switching of receiver setup.
- High Bright Blue LED - for easy daylight viewing.
- 2 Stage Arming - for complete monitoring of potenal live ignion.
- 2 Stage Emergency Ignion Kill -
By transmier signal.
By switching o power to the receiver.
- Remote Ignion Kill - via transmier.
- Receiver Power connected Indicaon - via LED ashing indicaon.
- Micro-Power design less than 1uA in standby mode. Less drain on your
model’s ignion baery than baery leakage so you can leave The Hidden
Ignion Switch connected to the ignion baery permanently.
- Baery Input Voltage 1v to 60v.
- Can also be used as an “On-board” Glow Driver.
- Weight 17 grams.
2

Typical Connecon Examples for
The Hidden Ignion Switch .
Ignition
Battery
Ignition
switch
Receiver
Ignition
On Board
Glow
Battery
Ignition
Switch
Receiver
Glow Plug
As a Gas powered Ignion switch
As an “On Board” Glow switch
3

Lets get started
Connect as shown above.
The ignion switch’s microprocessor draws it’s power from
your receiver and is only in awake state while your receiver is
switched on. Switching o power to your receiver will put the
switch to sleep and kill the ignion.
The hidden ignion switch does not need to be connected to the
Ignion/glow baery for system set up so it is recommended to
connect only to your model’s receiver for setup.
4
Baery input
Baery input
To Ignion
To Ignion
Connecon to
Receiver Channel
Lead Connecon Examples for The
Hidden Ignion Switch .

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PLEASE NOTE: One of the safety features is that The Hidden Igni-
on Switch draws it’s power from your models’ receiver so The
Hidden Ignion Switch is completely inoperable unless connect-
ed to your model’s receiver and the receiver is powered up!
The Hidden Ignion Switch also requires one receiver channel to
operate and is set to switch at approximately 50% of sck posi-
on. It is recommended to connect The Hidden Ignion Switch
to a switch channel on your receiver and adjust the switch unl
The Hidden Ignion Switch operates as required. Seng up a
transmier for switching will dier for each transmier type so
please refer to your transmier manual for switch channel set-
ng.
FOR THE TECHNICALLY MINDED ONLY
The Hidden Ignion Switch has a dead-band where neither an
On or O state is acve. This funconality is built into The Hid-
den Ignion Switch so that Switch uer cannot happen.
Also a bad signal (no pulse or less than 50% mark space rao)
must be present for more than 20 connuous frames before The
Hidden Ignion Switch will kill the ignion. In most modern re-
ceivers fail safe is built in so this condion should never be met
except as a complete system safety feature.
This dead band feature comes at a cost of a small delay (approxi-
mately 500 - 600 milliseconds) in switching ON/OFF.
PLEASE NOTE
Please observe correct connecon polarity i.e. RED is baery
posive and BLACK is baery negave.
An Incorrect polarity connecng will not allow your baery to
supply power to the Ignion.

Turning The
Hidden Ignion Switch ON
Aer connecng The Hidden Ignion Switch (as shown on page
4) turn on the model’s receiver, The Hidden Ignion Switch will
start to ash slowly. This is an indicaon that receiver power is
being supplied to The Hidden Ignion Switch .
While the Blue LED is ashing.
If you have adjusted your receiver channel correctly, switching on
the selected transmier switch/channel will arm The Hidden Igni-
on Switch (Ignion state is on) and the LED will be permanently
lit. If the blue LED does not light up permanently then you will
need to adjust your transmier. Please refer to your transmier
instrucon manual.
HINT use a sck channel (moving the sck up down or le right)
to verify The Hidden Ignion Switch ’s arming funcon (Blue
LED permanently On) and then once sased all is well move
The Hidden Ignion Switch to a switch channel on your models
receiver.
6

7
Turning The Hidden Ignion Switch
OFF
The Hidden Ignion Switch can disarm your models ignion
system using 3 methods.
1) Normal Mode - Switch o via the transmier. Approximately
0.5 of a second to switch o. Then switch o the receiver power.
2) EMERGENCY Mode (all else fails) switch o the receiver’s
power.
No maer what mode you use The Hidden Ignion Switch will
be ready to react to your command.

8
FACTS
Why does The Hidden Ignion Switch turn OFF when I switch
to a turn on condion via my transmier? The Hidden Ignion
Switch is designed to switch on from a pulse width greater that
50%. Reverse the switch condion on your transmier will set it
right.
Can I use The Hidden Ignion Switch as a General Purpose Op-
cally Isolated switch i.e not as an ignion switch? Yes you can,
The Hidden Ignion Switch can be used for any general purpose
funcon as long as the maximum recommended voltage (60V) and
current draw (4A or 6A) is observed.
Current carrying capacity of connectors - The Hidden Ignion
Switch will handle up to 4A current on the baery/ignion circuit
so a JR type connector is more than adequate for most uses. If a
higher current rang is required we also oer The Hidden Ignion
Switch in a 6A version with Ultra connectors. Current capacity will
then be limited to The Hidden Ignion Switch design.
Using The Hidden Ignion Switch with a voltage regulator - The
Hidden Ignion Switch was designed to work with all current RC
products regulated and unregulated. If you prefer using LifeP04
chemistry baeries (nominal 6.4v) then The Hidden Ignion
Switch will work excellently in most RC Ignion applicaons with-
out a regulator.

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Specicaons
- Opcal Isolated digital switching circuit with beer than 1500V
Isolaon.
- Works with Baery chemistry
LifeP04 (2 cells) In most cases a regulator not required.
LiPo (2 cells) Ignion may require a regulator.
Lion (2 cells) Ignion may require a regulator.
NiCd (5 Cells) Ignion no regulator required.
NiMH (5 Cells) Ignion no regulator required.
NiCd (1 Cell) Glow Driver.
NiMH (1 Cell) Glow Driver.
- Maximum input voltage 60 volts.
- Minimum input voltage 1 volt. (Ideal also for glow driver)
- Max connuous current: 4A or 6A depending on version
- Weight 17 grams.
- Approximately 1uA current draw from ignion baery.
- Length 36 mm x width 17 mm x Depth 17 mm
- Operang Temperature - 40 to 80 degrees Celsius
12 Month Replacement Warranty
Booma RC will replace this product within 12 months if found to
be defecve in material and/or workmanship when used in the
intended purpose. The warranty does not cover - Shipping charges
related to any warranty claim. An over voltage or over current
usage beyond stated specicaon. Damage due to system failure,
negligence, abuse, accident, improper installaon or freezing.
Loss of me, inconvenience, loss of model, or other incidental or
consequenal damages.

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Notes

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Notes

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Notes
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