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WARNING!

The OPTIMA II is intended to be a backup device and 
must not be relied upon as your primary means of 
maintaining altitude awareness.  Use the OPTIMA II at 
your own risk.

Do not put the OPTIMA II directly next to your ear when 
testing the alarm sounds on the ground, as the OPTIMA II 
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 OPTIMA 
II on the ground.

If the OPTIMA II is not mounted correctly, you may not hear 
the alarm sounds in freefall. Make sure the OPTIMA II is 
mounted correctly before you jump.

The OPTIMA II must be active (powered on) prior to entering 
the airplane.
 

INTRODUCTION

Congratulations on purchasing your new OPTIMA II!

The OPTIMA II design is based upon the latest fi ndings in 
microcomputer technology and freefall parameters and pro-
vides four warning banks (four sets of warning altitudes) for 
both high speed and low speed to provide added fl exibility 
in confi guring frequently used warning alarms. In addition, 
up to three climb warning alarms can be set.

NEW!! 

The OPTIMA II introduces a new class of warnings for 

use by skydivers – Canopy Descent Warnings and landing 
Guide Tones.  These allow you to preset warning altitudes for 
use under canopy and, if desired, to provide timing beeps 
to help you track your landing progress versus your altitude 
during the semi-fi nal stage of your canopy descent.

NOTE: The Canopy Descent Alerts are essentially low speed alerts 
and can also be used by wing suit fl yers to keep track of altitude in 
preparation for separation and canopy deployment.   

The OPTIMA II is fully automatic. It continually records 
the ambient air pressure and temperature and adjusts the 
electronic circuitry to the local elevation. 

The thin and ergonomic design ensures a perfect and 
comfortable fi t to your ear when placed in your fraphat or 
hard helmet.

The OPTIMA II can be mounted on the outside of any type of 
helmet by means of the enclosed ties.

The OPTIMA II is ideally suited for Relative Work, Skysurfi ng, 
Freefl ying, Head Down, Wing Suit Flying, Student, Tandem, 
AFF, and also canopy related activities such as accuracy, 
Crew and swooping. 

We hope you will enjoy jumping with your new OPTIMA II.

Please read ALL of the instructions prior to actual skydiving 
use.  It is a very good idea to practice ACCESSing the 
OPTIMA II and setting the warning values on the ground 
prior to your fi rst jump with the OPTIMA II.

If you have any questions please call, fax or e-mail us.

LARSEN & BRUSGAARD

INSTRUCTIONS

Power ON

The OPTIMA II has been powered off prior to shipping from 
our factory. To turn the power on, press and hold any key un-
til the unit beeps, then release the key. The OPTIMA II runs 
a self-test and sounds three beeps as it fl ashes the screen 
three times. It then displays a screen confi guration referred 
to henceforth as the “Main Display.”   This represents the 
starting point for all further actions with respect to OPTIMA 
II 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.

WARRANTY

The following conditions apply to the OPTIMA II 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 honour any extension of warranty granted by 
any national agent.

Waiver of Liability

The buyer and user of the OPTIMA II indemnify the manu-
facturer and vendor from any liability for damage incurred 
before, during and after skydiving with the instrument.

 

1st. warning altitude (1st. low speed alarm)

 2nd. warning altitude (2nd. low speed alarm)

 

3rd. warning alarm (3rd. low speed alarm)

 Perform ACCESS

 Warning bank

 Pitch

 OFF

 Battery status

 Lo speed status

 Alarm sounds

 FT/MTR

 Altitude/altitude offset

 Clock

 Up

 Mode

 Down

Performing ACCESS

Note: The OPTIMA II goes out of ACCESS and back to the Main 
Display if no button has been pressed within 5 sec.  ALL functions 
(except Power ON) can be performed ONLY when the OPTIMA II is 
in ACCESS mode.

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 im-
  mediately     

The OPTIMA II now fl ashes the warning bank icon with a 
number in front of it to indicate the active warning bank 
number.  

Menu Function Sequence

By repeatedly pressing   the OPTIMA II scrolls through the 
menu functions in this order: 

For the active warning bank: 1st warning altitude - 2nd 
warning altitude - 3rd warning altitude; sound pitch; sound 
volume; test alarm sounds;  feet/meters;  altitude offset; OFF 
icon;  Main Display.

General Note:

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 fl ashes, then press 

  

or 

 to exit

 

High Speed Warnings and Setup Selector

Warning Bank Menu Functions

The OPTIMA II has 4 freefall warning banks. When the 
warning bank icon is fl ashing, press 

 or 

 to select 

warning bank 1 to 4.

Setting the Warning Altitudes

The setting of altitudes in each warning bank can be perfor-
med either on the ground or in the airplane during climb to 
jump altitude.
 

Three Warning Alarms

1. Press   until 1st warning altitude fl ashes
2. Press 

 or 

 to change 1st warning altitude

3. Press   again and the 2nd warning altitude fl ashes
4. Press 

 or 

 to change 2nd warning altitude

5. Press   again and the 3rd warning altitude fl ashes
6. Press 

 or 

 to change 3rd 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 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 OPTIMA II exits 
ACCESS mode, it will automatically sort and store the war-
ning 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.

Two Warning Alarms

If you choose, you may have only two warning alarms.  The 
procedure is the same as above, but choose same altitude for 
the two highest warning alarms (the OPTIMA II then sounds 
only the 2nd and 3rd warning alarms). 

One Warning Alarm

If you wish 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 fl ash 

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 

 or 

 to select output volume.

”1” is very low volume (112 dB), ”10” is very high volume 
(117 dB)
The OPTIMA II is factory preset to ”7”.

NOTE: In case of low capacity the volume will automatically switch 
to ”1” and it cannot be changed until the batteries have been 
replaced.

Test Warning Sounds

Press 

 

 again. The ear icon will begin to fl ash.

Press 

 or 

 . This causes the OPTIMA II to sound the 

preset alarm sequence at the selected pitch.

Feet/Meters

Press 

 

 again. The FT or MT indicator located in the altitude 

area of the Main Display will begin to fl ash.

Press 

 or 

 to switch between feet (FT) or meters (MT).

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 displayed altitude (normally 0) in front 

of the FT or MT indicator will begin to fl ash.

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 OPTIMA II enters 
Jump Mode and retains the altitude offset for 14 hours, if no jump 
is made. After 14 hours the OPTIMA II recalibrates to the fi eld ele-
vation where it is currently located and once again displays 0. The 
altitude offset is not retained when the OPTIMA II is powered OFF.

 

Power OFF

The OPTIMA II 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 fl ash.

Press and hold both 

 and 

 until the display fl ashes, 

then release.  The OPTIMA II will shut off.

Customer settings (except altitude offset) are stored in non-
volatile memory when the OPTIMA II is powered OFF.

When powered OFF, the OPTIMA II cannot be used for 
jumping.

Performing ACCESS

Note: The OPTIMA II goes out of ACCESS and back to the Main 
Display if no button has been pressed within 5 sec.  ALL functions 
(except Power ON) can be performed ONLY when the OPTIMA II is 
in ACCESS mode.

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 im-

3. When the padlock icon appears again, release im-
  mediately     

The OPTIMA II now fl ashes the warning bank icon with a 
number in front of it to indicate the active warning bank 

number in front of it to indicate the active warning bank 
number.  

Menu Function Sequence

By repeatedly pressing   the OPTIMA II scrolls through the 

menu functions in this order: 

menu functions in this order: 

For the active warning bank: 1st warning altitude - 2nd 

For the active warning bank: 1st warning altitude - 2nd 
warning altitude - 3rd warning altitude; sound pitch; sound 

volume; test alarm sounds;  feet/meters;  altitude offset; OFF 

volume; test alarm sounds;  feet/meters;  altitude offset; OFF 

icon;  Main Display.

General Note:

To leave a menu function, wait until the display times out, 
or,

or,
press and hold   for 5 sec.,
or,

or,
press   repeatedly until the padlock icon fl ashes, then press 

  

or 

or 

 to exit

 to exit

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