Larsen & Brusgaard QUATTRO User manual

WARNING!
The QUATTRO is intended to be a backup device and must
not be relied upon as your primary means of maintaining
altitude awareness. Use the QUATTRO at your own risk.
Do not put the QUATTRO directly next to your ear when test-
ing the alarm sounds on the ground, as the QUATTRO alarm
volume is very loud. It may cause pain or damage to the ear.
Due to outside wind noise in freefall, the alarm sounds will
not be perceived to be as loud as when testing the QUATTRO
on the ground.
If the QUATTRO is not mounted correctly, you may not hear
the alarm sounds in freefall. Make sure the QUATTRO is
mounted correctly before you jump.
The QUATTRO must be active (powered on) prior to entering
the airplane.
INTRODUCTION
Congratulations on purchasing your new QUATTRO!
The QUATTRO audible altimeter is the latest in micro technol-
ogy and features the most advanced programming for
accurately measuring freefall & canopy descent rates. The
QUATTRO allows the skydiver four sets of warning altitudes
for high speed and three for low speed flight. This provides
added interactivity in configuring frequently used warning
alarms. The QUATTRO can also be set up to three climb warn-
ing alarms for the ultimate in precision altitude awareness.
NEW!! The QUATTRO raises the bar yet again to provide sky-
divers with the most accurate and useful functions available
in an audible altimeter:
- Four high-speed warnings:
Allows settings up to 19990 Feet and can be used for
Bigway formations, wingsuit flight setup and other precision
skydives where four high-speed warnings are needed and
desired.
- Track Guide:
0.5 second pulsating tones between the 1st and 2nd warn-
ings help keep track of altitude separation of tracking groups
or waves.
- Three canopy descent and low speed warnings:
The Canopy Descent Alerts are essentially low speed alerts
and can also be used by wingsuit flyers to keep track of alti-
tude in preparation for separation and canopy deployment.
The QUATTRO is fully automatic and can be manually turned
off or on as well. The QUATTRO continually reads ambient
air pressure for real-time accuracy and attention to ground
level.
The QUATTRO’s small and ergonomic design provides the
user with comfort & less bulk when used inside a soft or
hard-shell helmet. Rigging materials are included for those
wishing to mount the audible on the outside of a helmet.
The QUATTRO is specifically designed for advanced skydiving
disciplines: Bigways, Formation Skydiving, Freeflying, Wing-
suit Flying, Student, Tandem, AFF, and also canopy related
activities such as accuracy and CRW.
QUATTRO sets the standard as being the most advanced audi-
ble altimeter available with more features, greater accuracy
and the ability to finely tune your altitude awareness.
For further information or to ask questions about QUATTRO
or any other L&B altitude awareness instrument, please visit
our website and our Product Support Forum at
www.L-and-B.dk.
WARRANTY
The following conditions apply to the QUATTRO warranty:
Within 12 months after delivery, damage or defects in the
unit that are proven to be caused by faulty manufacture
will be repaired by LARSEN & BRUSGAARD at no cost to the
end user.
To make a claim under this warranty, send the unit to an
authorized dealer or directly to LARSEN & BRUSGAARD
together with the dated purchase invoice or receipt.
The warranty becomes void if damage is caused by external
circumstances or if the unit has been serviced or repaired by
third parties unauthorized by our national agents or LARSEN
& BRUSGAARD.
All further claims, especially for defects after skydiving
accidents, are excluded. LARSEN & BRUSGAARD has no
obligation to honor any extension of warranty granted by
any national agent.
Waiver of Liability
The buyer and user of the QUATTRO indemnify the manu-
facturer and vendor from any liability for damage incurred
before, during and after skydiving with the instrument.
 1st warning altitude (Altitude/Altitude offset)
2nd warning altitude (1st low speed alarm)
 3rd warning alarm (2nd low speed alarm)
4th warning alarm (3rd low speed alarm)
Perform ACCESS
Warning bank
Pitch status
OFF
 Battery status
Low speed status
Alarm sounds
Pitch status
Track Guide Status
FT/MTR
Up
Mode
Down
Three Warning Alarms
You can choose to only have three warning alarms. The
procedure is the same as above, but choose same altitude for
the 1st and 2nd warning alarms (the QUATTRO then sounds
only the 2nd, 3rd and 4th warning alarms).
NOTE: Track Guide is then disabled.
Two Warning Alarms
You can choose to only have two warning alarms. The proce-
dure is the same as above, but choose same altitude for the
1st, 2nd and 3rd warning alarms (the QUATTRO then sounds
only the 3rd and 4th warning alarms).
One Warning Alarm
If you want only one warning alarm, choose same altitude
for all four warning alarms using the above procedure. (The
unit sounds only the 4th warning alarm).
Track Guide
Press again.
Explanation:
When Track Guide is activated, a series of 0.5 second beeps
sound between the 1st and 2nd high speed warning.
To enable Track Guide
Press repeatedly until Track Guide flashes. Press or
until the Track Guide icon is ON.
To disable Track Guide
Press repeatedly until Track Guide flashes. Press or
until the Track Guide icon is OFF.
NOTE: When Track Guide is enabled, the Track Guide icon will show
in the warning bank area of all warning bank displays and in the
Main Window.
Sound Volume
Press again.
Four output values will begin to flash.
Press or to select output volume for all four high-
speed warnings.
”1” is very low volume (112 dB), ”10” is very high volume
(117 dB)
The QUATTRO is factory preset to ”7”.
NOTE: In case of low battery battery capacity the volume will
automatically switch to ”1” and it cannot be changed until the
batteries have been replaced.
Sound Volume Track Guide
Press again.
One output value will begin to flash.
Press or to select output volume for Track Guide.
”1” is very low volume (112 dB),”10” is very high volume
(117 dB)
The QUATTRO is factory preset to”3”.
NOTE: In case of low battery capacity the volume will automatically
switch to ”1” and it cannot be changed until the batteries have
been replaced.
Sound Pitch
Press again.
The musical note icon and pitch bar graph will begin to
flash.
Press or to change the pitch up or down. The pitch
bar graph will display the number of bars corresponding to
the selected pitch and the selected pitch will sound.
Note: When selecting a pitch on either side of the center
vertical bar (3,800 Hz), the output volume decreases about
5 dB because the speaker is no longer at its optimum
resonance frequency.
Test Warning Sounds
Press again.
The ear icon will begin to flash.
Press or .
This causes the QUATTRO to sound the preset alarm sequence
at the selected pitch.
INSTRUCTIONS
Power ON
The QUATTRO has been powered off prior to shipping from
our factory. To turn the power ON, press and hold any key
until the unit beeps, then release the key. The QUATTRO runs
a self-test and sounds three beeps as it flashes the screen
three times. It then displays a screen configuration referred
to henceforth as the “Main Window”.
This represents the starting point for all further actions with
respect to QUATTRO actions and subsequent displays.
NOTE: To save battery power, the screen display will switch OFF after
14 hours. However, the unit is still ready to jump.
Performing ACCESS
Performing ACCESS can be done in the:
1) Climb to Altitude Warnings and Altitude Offset Window
2) High Speed Warnings and Setup Selector Window
3) Canopy Descent and Low Speed Warnings Window
1. Press and release quickly – the padlock icon turns off
(disappears)
2. When the padlock icon reappears, immediately press
and keep it pressed – the padlock icon will disappear
again
3. When the padlock icon appears again,
release immediately
NOTE:: The QUATTRO goes out of ACCESS and back to the Main
Window if no button has been pressed within 5 sec. ALL functions
(except Power ON) can be performed ONLY when the QUATTRO is in
ACCESS mode.
Menu Function Sequence
By repeatedly pressing the QUATTRO scrolls through the
menu functions in the selected window:
To leave a menu function, wait until the display times out,
or,
press and hold for 5 sec.,
or,
press repeatedly until the padlock icon flashes, then press
or to exit.
High Speed Warnings and Setup Selector
Perform ACCESS in the High Speed Warnings and Setup
Selector Window.
Warning Bank Menu Functions
The QUATTRO has four freefall warning banks.
When the warning bank icon is flashing, press or to
select warning bank 1 to 4.
Setting the Warning Altitudes
The setting of altitudes in each warning bank can be per-
formed either on the ground or in the airplane during climb
to jump altitude.
Four Warning Alarms
1. Press until 1st warning altitude flashes
2. Press or to change 1st warning altitude
3. Press again and the 2nd warning altitude flashes
4. Press or to change 2nd warning altitude
5. Press again and the 3rd warning altitude flashes
6. Press or to change 3rd warning altitude
7. Press again and the 4th warning altitude flashes
8. Press or to change 4th warning altitude
Sequence of Warning Alarm Altitudes
You may note that when setting the warning altitudes, it is
possible to set the 1st warning alarm altitude lower than the
second or even the 4th warning altitudes. The 2nd warning
altitude could be set to a higher value than the 1st warning
altitude or a lower value than the 3rd warning altitude, and
so on. This is not a problem – when the QUATTRO exits
ACCESS mode, it will automatically sort and store the warn-
ing alarms such that the highest warning altitude becomes
the 1st warning alarm, the next highest warning altitude
becomes the 2nd warning alarm, and the lowest warning
altitude becomes the 4rd warning alarm.








 

  
 

If Track Guide is enabled, the Track Guide will simulate “real-
time” based on the difference between 1st and 2nd warning
at speed 120mph
(176 feet/sec) or 193 km/h (54 m/sec).
To stop the Test Warning Sounds, press , or .
NOTE: In case of low battery capacity the volume will auto-
matically switch to ”1” and it cannot be changed until the
batteries have been replaced.
Feet/Meters
Press again.
The FT or MT indicator located in the altitude area of the
Main Window will begin to flash.
Press or to switch between feet (FT) or meters (MT).
Power OFF
The QUATTRO can be manually powered OFF to further extend
the battery life time when not in use.
Press again.
The OFF icon in the icon area of the Main Display will begin
to flash.
Press and hold and until the display flashes, then
release.
The QUATTRO switches OFF.
Customer settings (except altitude offset) are stored in
nonvolatile memory when the QUATTRO is powered OFF.
When powered OFF, the QUATTRO cannot be used for jump-
ing.
Canopy Descent and
Low Speed Warnings Selector
Description
The QUATTRO includes three canopy low speed warning
sounds (short beeps sound when passing through one, two
or three selectable altitudes) which can be selected to sound
while under canopy descent or during wing suit flight.
Setting Canopy Descent Warnings
NOTE: Minimum selectable height is 100 ft (30 meters)
Note: Default values 1200 ft., 900 ft., and 600 ft. have been fac-
tory preset for Canopy Descent Warning altitudes.
In the Main Window mode, press to access the Canopy
Descent Selector.
In this window perform ACCESS.
Warning Bank Menu Functions
The QUATTRO has four canopy descent warning banks.
When the warning bank icon is flashing, press or to select
warning bank 1 to 4.
Setting the Warning Alarm Altitudes
The setting of altitudes in each warning bank can be per-
formed either on the ground or in the airplane during climb
to jump altitude.
Three Warning Alarms
1. Press until 1st warning altitude flashes
2. Press or to change 1st warning altitude
3. Press again and the 2nd warning altitude flashes
4. Press or to change 2nd warning altitude
5. Press again and the 3rd warning altitude flashes
6. Press or to change 3rd warning altitude
Two Warning Alarms
You can choose to only have two warning alarms. The proce-
dure is the same as above, but choose same altitude for the
1st and 2nd warning alarms
(the QUATTRO then sounds only the 2nd and 3rd warning
alarms).
One Warning Alarm
If you want only one warning alarm, choose same altitude
for all three warning alarms using the above procedure. (The
unit sounds only the 3rd warning alarm).
Sound Pitch
Press again. The musical note icon and pitch bar graph
will begin to flash.
Press or to change the pitch up or down. The pitch
bar graph will display the number of bars corresponding to
the selected pitch and the selected pitch will sound.
NOTE: When selecting a pitch on either side of the center
vertical bar (3,800 Hz), the output volume decreases about 5
dB because the speaker is no longer at its optimum resonance
frequency.
Sound Volume
Press again.
Press or to select output volume for all three
canopy low speed warnings.
”1” is very low volume (112 dB),”10” is very high volume
(117 dB)
The QUATTRO is factory preset to ”3”.
NOTE: In case of low battery capacity the volume will automatically
switch to ”1” and it cannot be changed until the batteries have
been replaced.
Test Alarm Sounds
Press again.
The ”Ear” icon will begin to flash.
Press or . This causes the QUATTRO to sound the
preset alarm sequence at the selected pitch.
NOTE: When Canopy Descent is enabled, the LO SPD icon will show
in the warning bank area of all warnings.
To disable LO SPD, set all warnings to ---
Climb to Altitude Warnings and Altitude
Offset Selector
Description
The altitude during climb at which the beep is heard may be
changed or up to three different altitudes during climb may
be selected for beep sounds.
At the lowest preset altitude (factory preset to 1,000 feet),
the QUATTRO sounds a sequence of beeps. These beeps have
two functions:
1. The beeps indicate that the QUATTRO has calibrated itself
to the local ground elevation and is ready to jump.
2. The number of beeps indicates the altitude at which the
highest warning alarm is set; for example: If set to 4,500
feet, the signal will sound: beep-beep-beep-beep-(pause)
beep.
The number of rapid-sequence of beeps indicates the highest
warning altitude in thousands of feet. The beep after a
pause (if any), signifies a 500-foot altitude increment.
Should the battery voltage of the QUATTRO show low capac-
ity, the beep sequence is followed by 5 short beeps. This
indicates that the batteries should be replaced.
NOTE: At the same time the output volume setting is automatically
changed to low volume “1” and it cannot be changed until the
batteries have been replaced.
When the aircraft begins climbing to altitude, the QUATTRO displays
the current altitude at the top of the display.
Setting
The setting of warning altitudes can be performed either on
the ground or in the airplane during climb to jump altitude.
Setting Climb to Altitude Warnings and Altitude Offset
NOTE: Minimum selectable height is 1000 ft (300 meters)
Note: Default values 1000 ft., --- ft., and --- ft. have been factory
preset for Climb to Altitude Warnings.
In the Main Window mode, press to access the Climb to
Altitude Warnings and Altitude Offset Selector.
Perform ACCESS in this window.
Three Warning Alarms
1. Press until 1st warning altitude flashes
2. Press or to change 1st warning altitude
3. Press again and the 2nd warning altitude flashes
4. Press or to change 2nd warning altitude
5. Press again and 3rd warning altitude flashes
6. Press or to change 3rd warning altitude
Sequence of Climb Warning Alarm Altitudes
You may note that when setting the warning altitudes, it is
possible to set the 1st warning alarm altitude lower than
the 2nd or even the 3rd warning altitudes. The 2nd warning
altitude could be set to a higher value than the 1st warning
altitude or a lower value than the 3rd warning altitude, and
so on. This is not a problem – when the QUATTRO exits
ACCESS mode, it will automatically sort and store the warn-
ing alarms such that the highest warning altitude become
the 1st warning alarm, the next highest warning altitude
becomes the 2nd warning alarm, and the lowest warning
altitude becomes the 3rd warning alarm.
One or Two Warning Alarms
If you wish only one warning alarm or two alarms, preset the
not used alarm(s) to ---
Altitude Offset
Explanation:
If the DZ elevation differs from that of the airport of takeoff,
use the altitude offset capability to set the DZ elevation
prior to entering the airplane or set the altitude offset to
zero when climbing through the DZ elevation.
Press again. The altitude (normally 0) next to the FT or
MT indicator will begin to flash.
Press or to set an altitude offset to match the
altitude of the landing DZ relative to the takeoff airport.
NOTE: When performing manual altitude offset the QUATTRO
enters Jump Mode and retains the altitude offset for 14 hours,
if no jump is made. After 14 hours the QUATTRO recalibrates
to the field elevation where it is currently located and once
again displays 0. The altitude offset is not retained when the
QUATTRO is powered OFF.
OPERATIONAL CONSIDERATIONS
Prior to Jumping
The QUATTRO continually adjusts to the local elevation and
displays 0 FT (MT) at the top of the display. If the top of the
display does not show “0” (or your selected altitude offset)
prior to jumping, the unit has not adjusted itself to the local
elevation and it must be manually zeroed. See the section,
“Altitude Offset Function” under Menu functions above.
Even when the display turns OFF, the unit is still ready for
jumping.
Setting an Altitude Offset
If the drop zone (DZ) elevation is different from that of the
takeoff airport, you may compensate for this difference by
setting an Altitude Offset – see the Altitude Offset menu
function described above.
Battery Status
Full capacity: Symbol shows two black bars inside the bat-
tery icon.
Half capacity: Symbol shows one black bar inside the battery
icon.
Low capacity: Symbol shows no black bars, just an “empty”
battery icon. Batteries should be replaced as soon as pos-
sible.
As a reminder, 5 short beeps sound when climbing through
the lowest preset climb altitude. At the same time the
output volume setting is automatically changed to low
volume “1”.
Empty batteries: The battery icon flashes. Replace batteries
immediately.
Mounting the QUATTRO
The QUATTRO can be mounted on the outside of the helmet.
Loop the wax cord through the four mounting holes and
fasten with knots to the helmet.
NOTE: Make sure that there is no material between the
QUATTRO loudspeaker hole and your ear.
Resetting the QUATTRO
Press a paperclip into the tiny hole on the rear side of the
unit and release. The unit restarts.
NOTE: Reset the unit after battery replacement, when trouble-
shooting and when verifying software version number.
Air Filter
The QUATTRO is water resistant.
The Air Filter is the white circular part mounted on the side
of the unit. If it becomes wet (after a splash in the swoop
pond) then let the QUATTRO dry in a warm place for 48
hours.
NOTE: The Air Filter must be replaced if jumping is resumed
quickly or if the QUATTRO has been submerged into water.
Air Filter removal tooling kit is an accessory which can be
purchased separately.
QUATTRO Firmware Version
Perform reset. The version number is displayed at the upper
part of the screen (altitude area). The numbers displayed in
the middle of the screen is a factory reference number.
Battery replacement
Carefully remove screw from battery cover and remove
batteries.
Install new batteries and note polarity.
Use only Renata CR-2325.
NOTE: Reset the QUATTRO after replacing batteries.
Customer settings are kept in non-volatile memory when
removing batteries. However, the built-in clock may again be
set to the correct time.
Trouble-shooting
When the QUATTRO detects a fault, an error (“ERR”) sign and
troubleshooting number 2 to 4 are displayed in the upper
part of the screen. At the same time the unit beeps every
minute.
The “ERR” trouble shooting codes are as follows:
ERR 2, ERR 3, ERR 4 = unit is defective. Remedy: perform
reset
If the unit does not function correctly even after replacing
batteries and pressing reset, perform following:
Press and hold while resetting.
The QUATTRO resets to factory settings and sounds three
beeps.
If the unit is still faulty, please contact your local dealer or
LARSEN & BRUSGAARD.
SPECIFICATIONS
Dimensions: 52 x 40 x 12 mm (2.16 x 1.57 x 0.47 inches)
Weight: 26 grams (0.9 oz.)
Battery type: 2 x Renata CR 2325
Battery Life Time: 2.5 years or 500 jumps
Freefall alarm sounds:
1st warning:
One 1.5 second pulsating alarm if vertical airspeed exceeds
13 m/ sec at preset altitude. Sound sequence: Pulsating, low
repetition.
2nd warning:
One 3 second pulsating alarm if vertical airspeed exceeds 13
m/ sec at preset altitude. Sound sequence: Pulsating, low
repetition.
3rd warning:
One 4 second pulsating alarm if vertical airspeed exceeds 13
m/sec at preset altitude. Sound sequence: Pulsating, high
repetition.
4th warning:
Siren alarm as long as vertical airspeed exceeds 13 m/sec at
or below the preset altitude. After deployment the trigger
speed switches to 35 m/sec.
Sound sequence: High pitch continuous siren.
Track Guide:
0.5 second beeps between 1st and 2nd warning.
Low Speed alarm sounds:
1st warning: One 0.2 second beep
2nd warning: Two 0.2 second beeps
3rd warning: One 1.3 second beep
Climb to Altitude Warnings: Two 0.2 second beeps
Alarm output volume:
117 dB at maximum volume “10”
112 dB at minimum volume “1”
Freefall alarm calibration range: 1,000 to 19,900 feet (300
to 6,000 meters)
Low speed alarm calibration range: 100 to 9,990 feet (30 to
3,330 meters)
Climb to Altitude calibration range: 1000 to 9,990 feet (300
to 3,330 meters)
Altitude selection interval: 10 feet (10 meters)
Operating altitude: 0 to 40,000 feet
Accuracy: +/- 1.2%
Operating Temperature Range: -20° C to +50° C (-4° F to
+122° F)
Meets or exceeds EEC/89/336
L&B part no.: 205222
NATO Stock no.: 6605-22-609-1694