Nellis engineering Logic genesis User manual

Genesis

GenesisGenesis

Genesis

Diver Propulsion Vehicle (DPV)

Owner's manual

Preface:

IT IS IMPERATIVE TO READ AND UNDERSTAND THIS MANUAL so that you know the

capabi ities, imitations and hazards of the Genesis DPV. Reread it occasiona y to

refresh yourse f with the operationa and maintenance requirements and refresh

yourse f on the proper responses shou d you experience difficu ties with the DPV

underwater or on and. By not fu y reading and understanding this manua , you

wou d be eaving essentia safety information out of the water, which is no different

than eaving essentia dive safety equipment on the shore, where it wi do you no

good when you need it most. If you have any question, contact the factory for

guidance.

Table of contents Page

Warnings & Cautions 3

Assemb y 5

Batteries and charging 7

Tow Cord 9

Trimming 10

Operation 10

Post Dive 13

Care & Maintenance 14

Vacuum & Pressure Testing 15

Data Logger Connection 16

Specifications 17

Power charts (P anning) 17

Warranty 19

Changes to the manual

Changes to the manua from the previous revision can be identified by a vertica b ack bar in the

right margin where the change occurs.

Warnings & Cautions

WARNING

A warning means that injury or death is possib e

if the instructions are not obeyed.

CAUTION

A caution means that damage

to equipment is possib e.

Note

A note is added to give more

information, usua y in a procedure.

WARNING: Keep hands, ong hair and equipment away from prope er. The prope er spinning at

high power settings creates significant suction within 16 inches (40 cm) of the nozz e in et and can

draw in hands, hair or anything within range. The DPV is equipped with safety features that wi

stop the prope er rotation when enough resistance is present, but injury is sti possib e.

WARNING: A ways rotate the trigger ock tab to b ock trigger operation AND adjust the speed

contro ever to OFF when not in use to avoid accidenta operation.

WARNING: Never a ow the batteries to charge unattended or attempt to charge damaged

batteries. The Lithium Ion po ymer batteries have a high energy density and can catch fire or

exp ode if abused or damaged. On y recharge in a safe ocation, free of f ammab e materia s,

under direct supervision and on y using the supp ied charger. Do not attempt to charge the

batteries immediate y after fu y discharging them at hi power. The batteries heat up the most

during the end of a deep discharge and shou d be a owed to coo for one hour before

recharging. For the best battery ife, avoid deep y discharging the batteries if possib e.

WARNING: Do not eave the DPV batteries (a one or insta ed in DPV) in direct sun ight or a hot

car. Temperatures of 160°F (70°C) or above can damage the batteries resu ting in fire or exp osion.

WARNING: Do not attempt to charge the batteries when they are at or be ow freezing

(32°F/0°C). Permanent damage to the batteries wi resu t, decreasing both battery safety and

capacity. Whi e the outside of the batteries may be above freezing, the centers may not. Ensure

amp e time is spent in a warm environment for therma equi ibrium across the pack before

charging, fo owing exposure to freezing temperatures.

WARNING: Do not use the DPV to ascend from depth. Having the scooter tow you towards the

surface from depth can resu t in a rapid ascent which can resu t in ear drum rupture, ung over

expansion, decompression i ness or death. Do not operate any DPV without proper training.

WARNING: Do not re y on the DPV to save your ife. The DPV is capab e of taking you p aces that

you may not be ab e to swim back from if the DPV fai s. It is not and was never intended to be ife

support equipment, so do not re y on it as such.

WARNING: Be prepared to separate yourse f from the DPV shou d it become uncontro ab e, a

dangerous restriction to movement or extreme y negative y buoyant from f ooding.

WARNING: The DPV is capab e of compensating for diver buoyancy trim changes with itt e

indication of the change in buoyancy detectab e by the diver unti they stop. Operating the DPV

over varying depths can resu t in the diver becoming very positive y or negative y buoyant when

they stop, resu ting in an out of contro ascent or descent. Ensure proper trim adjustments are

made when changing depths whi e scootering and be prepared for this when stopping.

WARNING: Powerfu magnets are used in the magnetic coup ing for the prope er. When the

prope er assemb y is removed from the tai section, it can be attracted to magnetic surfaces with

great force. Treat the prope er assemb y with extreme caution when removed to avoid pinching

hands and fingers and a so damaging the coup ing.

CAUTION: Avoid running the DPV unti battery cutout. Deep y discharging the battery shortens

the battery ife and can ead to over-discharge of the batteries. Shou d the DPV be run unti cutout,

remove the recharge p ug cover on the nose of the DPV after exiting the water and recharge the

batteries at your ear iest opportunity.

CAUTION: Ensure the DPV recharge connector cover is insta ed prior to entering the

water. Corrosion of the connector can occur if eft off for extended periods in the water.

CAUTION: The prope er is capab e of ingesting rocks off the bottom, sea ife and other objects at

high power settings, which can damage the prope er. Use caution when operating near oose

objects and dive responsib y near sea ife.

CAUTION: A ways inspect the o-ring grooves and sea ing surfaces for dirt, sand or debris and

remove if present to ensure a good sea . Check that the o-rings between the body and tai section

are c ean, undamaged and ubricated when assemb ing the DPV. Ensure the body/tai connection

is proper y a igned before engaging the sea s and do not force the connection together if abnorma

resistance is fe t. Poor attention to assemb y can resu t in damage to the sea ing surfaces and

f ooding of the DPV.

A ways remember to remove the recharge p ug cover when not

in use or the batteries may be permanent y damaged by over

discharge. Over discharge is not covered by the warranty!

Assembly

Before charging the DPV for the first time,

the batteries must be connected to the tai

section interna y. The DPV can be opened

by s iding the arge rubber band forward to

expose the orange p astic ocking strips

(2ea) at the 3 & 9 O'c ock positions (Fig. 1).

Remove the two ocking strips by pu ing on

the c ear tab to ift the strip out of the

groove and then grasp the tab and strip

before pu ing it free of the housing. It may

be necessary to compress the tai section

into the body to free the ocking strip, as a

s ight pressure inside the DPV can cause

them to bind. With the ocking strips

removed, stand the DPV on its nose and ift

the tai section off of the body.

Note

It is possib e to have a s ight vacuum or

pressure inside the DPV body that prevents

the tai section from being removed. A test

port p ug (Fig. 2) on the nose of the DPV can

be removed with an 11/16" socket to equa ize

the pressure. This is the pressure/vacuum

test port that wi be discussed ater.

Figure 1

Lock strip slot view

Figure 2

Nose cone view

Next, ensure the battery ocks are engaged

and the batteries cannot move inside the

body. If the battery assemb y was removed,

it wi need to be reinsta ed in the proper

orientation. The battery packs are s ight y

heavier on the side opposite from where the

wires exit. This side shou d be insta ed on

the right hand side of the scooter to he p

counteract the motor torque when running

(Fig. 3) and the wires from the front of the

scooter shou d run a ong the bottom.

There are three connections inside the DPV

that need to be mated (Fig. 4). First, ensure

the trigger is ocked OFF (sma tab rotated

underneath trigger to prevent it from being

depressed) and the speed ever set to the OFF

position (pointing towards the nozz e - Fig. 5)

and then connect the two battery p ug sets to

the tai section. You shou d expect a spark

when the second battery is connected; it is

due to the capacitors in the motor contro er

charging. It does not matter which battery is

connected to which p ug set on the tai . The

batteries are connected in series, once they

are p ugged into the tai section. After the

batteries are connected, p ug in the circu ar

connector, paying attention to the key, which

is towards the center of the tai section and

turn the ocking ring c ockwise to secure it.

Ensure the o-rings and sea ing surfaces are c ean and generous y greased with Mo ykote 111

si icone ubricant. Insufficient grease or debris on the sea ing surfaces can resu t in f ooding of the

scooter. Insta the tai section into the body carefu y, ensuring an even gap a the way around

before engaging the o-ring sea s. The s ot openings for the orange p astic ocking strips shou d be

at 3 and 9 o'c ock with the pins of the recharge connector on the nose, pointing up. The s ots ine

up with the nozz e struts at 3 and 9 o'c ock for reference. Insta the orange p astic ock strips and

s ide the rubber band over the joint. Never grease the grooves used by the ock strips.

Figure 4

Tail section inside view

Figure 3

Battery orientation

Figure 5 - Trigger locked off

Note

The rubber band is not needed to retain the ocking strips or sea the DPV. It is

there so e y to keep sand, si t or other debris out of the joint, which may get

into the o-ring groove when the DPV is opened. At the end of the diving day,

the rubber band shou d be s id forward so fresh water can f ow around the

joint when it is rinsed and eft c ear of the joint unti the next dive.

The recharge p ug cover shou d on y be insta ed when you are ready to dive. It contains a circuit

that enab es the motor contro er and shou d be thought of as an ignition key for an automobi e.

When the cover is insta ed the batteries wi begin discharging s ow y, so do not eave the cover

insta ed when storing the scooter, or the batteries may be damaged by over discharge. Remove

the cover at the end of the diving day or after exiting the water if the DPV is run unti battery

cutout. The recharge p ug cover is rather expensive, so do not ose it.

Before entering the water, insta the recharge p ug cover and test that the DPV operates norma y

by depressing the trigger and operating the variab e speed up and down with the prope er speed

tracking the commanded speed. A ways ock the trigger OFF and adjust the speed ever to OFF

whi e entering and exiting the water.

TAB BEHIND T

RI ER

SPEED LEVER

DOWN (OFF)

atteries and charging

On y recharge the batteries in a safe ocation where they can be monitored. Do not charge them

unattended. The ithium ion po ymer batteries do not off gas whi e charging ike ead acid or NiMH,

so the DPV body can remain sea ed during charging. It is recommended to remove the orange

p astic ock strips from the DPV prior to charging in the un ike y event the batteries fai and vent.

By standing the DPV on its tai to recharge, the weight of the body with the batteries inside wi

maintain the sea un ess interna pressure bui ds up inside. Obey a warning and cautions

previous y isted on pages 3 & 4.

When the batteries and circu ar connector are p ugged into the tai section, they can then be

recharged via the supp ied charger. P ug the charger into the DPV first, then p ug the charger into

the wa out et. The power ight shou d be on and charging ights shou d change from green to red

within one minute, indicating that the batteries are charging. At the end of charging, the

CHARGING LEDs wi turn green, but most ike y not at the same exact time. The batteries are

connected in series inside the DPV, so both batteries need to be charged together, whenever it

needs charging.

If one or both ights turn green after p ugging the cord into the out et and the batteries have not

been previous y charged, it is an indication of ow battery vo tage and a possib e over discharge.

Reseat a the connectors and try charging again. If they sti do not begin charging, disconnect the

batteries from the tai section and contact the factory.

CAUTION

The batteries shou d never be charged direct y from the supp ied charger

with any kind of adapter. There is a protection circuit in the DPV tai section

that prevents power from being present at the recharge p ug on the nose,

shou d the cover not be insta ed in the water. This circuit decreases the

charger vo tage and bypassing it wou d resu t in excessive vo tage app ied to

the batteries.

The Genesis batteries shou d on y be charged when you intend to use the DPV. Charge them 12 to

24 hours before you p an to dive. When storing the DPV for more than a few days, the batteries

shou d receive a partia charge to bring the vo tage into the storage range of 29.0 to 30.0V. Under

norma operation, it is recommended to p an your dives so that the batteries are on y discharged

about 80% of the avai ab e capacity to avoid deep cyc ing the ce s, which decreases their service

ife. If you suspect that ess than 80% the capacity was used, a storage charge is not necessary.

Whi e the battery vo tages cannot be checked at the recharge connector pins, it is possib e to

insta power meters such as the "Watts-Up", "Doc Wattson" or simi ar meters in the recharge

cab e to read the vo tage and power during recharge. Contact the factory for instructions on how

to insta these, shou d you choose to. The Sentry DPV Dashboard wi read the battery vo tages

whi e charging, if insta ed.

The charger output is approximate y 3A, which equates to a 0.3C charge rate on the Genesis 600

and a 0.15C charge rate on the Genesis 1200. This means that during the bu k charge period (first

90% of capacity), the 600 batteries wi increase about 30% of the tota capacity per hour up to

approximate y 90% and the 1200 batteries wi increase about 15% per hour, up to approximate y

90%. During the ast 10% of the charge, the current decreases as it approaches fu charge and the

fina 10% of charge takes approximate y 1.5 and 3.0 hours to finish, respective y. As an examp e

for the Genesis 600, if during a dive, you used 50% of the battery capacity and then recharged it

for one hour during your surface interva , the battery capacity wou d be at approximate y 80% for

the next dive.

Genesis DPV battery capacity based on resting voltage

(i.e. motor not running)

attery Reset Instructions

The Battery Management System (BMS) in the Genesis DPV batteries can go into “s eep” mode,

when the nose p ug that enab es the motor is accidenta y eft insta ed for days or weeks or the

scooter is stored for ong periods (months) without use. The proper operation of the batteries

can be identified easiest by ensuring that the green LEDs on the charger both turn red when the

batteries begin charging. If one or both LEDs remain green for more than 60 seconds after

connecting the charger, it is an indication that one or both of the batteries may be in “s eep” mode.

The fo owing instructions detai how to reset the BMS to “wake” the battery up. If a battery goes

into s eep mode frequent y or not for one of the reasons stated above, contact the factory.

First, it is recommended that you check the vo tage of each battery with a qua ity Digita Vo tage

Meter (DVM). Low qua ity meters may not read the vo tage correct y when a battery is shut off.

Fu y charged vo tage wi be 33.2 – 33.6VDC. The shutdown vo tage is approximate y 24.5VDC. A

vo tage be ow 20.0VDC shou d be returned to the factory for an eva uation of the ce s and a ow

current recovery charge.

To reset the BMS:

1. Remove the prope er from the tai . The magnets on the prope er coup ing wi be used to

activate the reed switch in the battery.

100%

33.6V

50% 30.5V

90% 32.7V

40% 30.2V

80% 32.0V

30% 30.0V

70% 31.4V

20% 29.6V

60% 30.9V

10% 29.0V

2. Open the scooter, if not a ready open, and check the battery vo tage between the Red and

B ack connectors on each battery pack to verify at east 20.0VDC.

3. Remove the batteries from the body and wave the magnetic end of the prope er coup ing over

the ocation of the reed switch inside the battery pack shown be ow (b ue rectang e). The ocation

is the same distance from the wire sea ing g and on a batteries, regard ess of size. It is

approximate y 3.5” (90mm) from the end of the battery housing, direct y behind the sea ing g and.

4. Whi e not necessary, you may visua y confirm a battery reset by p ugging the batteries into the

tai a ong with the circu ar p astic connector from the nose and the charger p ugged into the

outside nose of the scooter, but not p ugged into the wa yet. This is done with the DPV open and

the batteries removed for the body.

5. Once everything is connected, p ug in the wa socket and wave the magnetic end of the

prope er coup ing over the b ue rectangu ar area show above. A battery that is charging wi stop

charging when a magnet is passed over the reed switch and resume charging when it is removed.

A battery that is NOT charging shou d begin charging when a magnet is passed over the reed

switch AND removed.

It is not necessary to connect the charger to a battery to reset the BMS. A magnet simp y needs to

pass over the reed switch at any time to reset the BMS. A so note, that the charger has a “time-

out” that shuts off power output after approximate y 2 minutes of no output. Shou d one of the

charger’s LEDs remain green for more than 2 minutes, that charger wi turn off a output to the

DPV. The charger wi need to be unp ugged from the wa for 10-15 seconds and then p ugged in

again to restart the output. (Note: there are actua y two independent chargers inside the charger

case)

Tow Cord

The tow cord comes insta ed between the eft side of the hand e mounting bracket and the nozz e

strut at the 5 o'c ock position when viewed from behind with the hand e horizonta at 12 o'c ock. An

extra mount point and 1.0" ong screws are inc uded if you prefer that the tow cord be mounted

between the 3 and 9 o'c ock positions. Ensure the correct ength screw is used between the nozz e

to strut connection. A #10-24 x 1.0 inch thread ength screw is used for the hand e mounting

bracket and tow attachment points. A #10-24 x 7/8 inch thread ength screw is used where nothing

e se is attached. Insta ing the 1.0 inch screw ength in a ocation with nothing attached wi resu t in

the screw piercing the inside diameter of the nozz e and cracking the materia around where it exits.

Torque to 30 in- b.

Figure 6 - Taut line hitch sequence

Trimming

The DPV shou d be trimmed with weight inside so as to have the proper buoyancy characteristics

in the water. Typica y, DPVs are trimmed neutra to s ight y positive when diving open water and

neutra when diving in an overhead environment. The amount of weight needed inside wi

change noticeab y from sa twater to fresh water and s ight y from warm to co d water. Two

weight pouches with ead shot are inc uded with an adhesive patch of Ve cro for each. Insta one

adhesive patch to the inside of the nose and one to the f at p ate on the inside of the tai assemb y.

Adding items to the DPV ike a compass, camera mount or bo t-snap on the nose wi affect the

trim, so ensure it is configured with a accessories before trimming.

Operation

A DPV training course is recommended for anyone without experience operating a DPV. The

operation section of the manua in not a substitute for proper training and does not address the

mu titude of issues you may encounter whi e operating your DPV.

Once in the water, attach the DPV tow cord to your crotch strap D-ring and adjust the ength to a

comfortab e, but not over extended reach ength. Do not attempt to operate the DPV without it

being secure y attached to a proper towing attachment point on your harness or end it to another

diver without a proper towing attachment point on their harness. When starting out, it is easiest to

start with the tow cord adjusted shorter than necessary and gradua y engthen it, instead of

starting with the tow cord adjusted too ong. The tow cord ength is adjusted via a taut- ine hitch

which ocks up under tension, but can be adjusted by hand when not. (See Fig. 6)

When you are ready to dive, submerge and

make yourse f neutra y buoyant before

rotating the trigger ock tab 180° out of the way

(see Fig. 7). Adjust the speed ever to a midd e

position and squeeze the trigger comp ete y.

The DPV has a soft start on the motor to

prevent it from jerking you when you squeeze

the trigger. The speed ever can be adjusted at

anytime, before or after squeezing the trigger.

The tab used to ock the trigger in the OFF

position can a so be used to ock the trigger in

the ON position (see Fig. 8) for extended

cruising. It is recommended that you do not

use the ocking tab to keep the trigger ON unti

you have gained amp e experience with the

DPV and then on y use it when your hand is on

the hand e. Rotate the ocking tab out of the

way of the trigger when transitioning into a

restrictive area or area congested with divers or

sea ife. When not using the DPV, a ways

rotate the speed ever to the OFF position and

rotate the ocking tab under the trigger to

prevent accidenta actuation.

WARNING

Anytime you remove your hand from the

hand e (to p ace a ree , dep oy a ift bag, etc.)

even if on y for a few seconds, ensure the

trigger is ocked in the OFF position and the

speed ever is set to OFF. A runaway scooter

Figure 7 - Lock tab 180° from trigger

Figure 8 - Trigger Locked on

wi typica y wrap around behind a diver and

spin them in circ es with the hand e out of

reach.

A ways keep hands and equipment away from the prope er in et and exit. Shou d enough

resistance be put on the prope er rotation, the magnetic coup ing wi s ip causing a noticeab e

vibration. Re easing the trigger wi a ow it to recoup e when the motor stops spinning and

operate norma y after the b ades are c eared. No damage or wear wi resu t from the motor

running with the prope er decoup ed. If ine has been ingested and becomes wrapped around the

prope er, remove the prope er assemb y by pu ing it straight out the back of the nozz e.

Underwater, there is more resistance when removing the prope er as the water needs to f ow

into the area of the coup ing as it is removed. It is recommended you practice removing the

prope er underwater a few times in a contro ed situation so you know how much force is

required, before having to do it after the prope er becomes entang ed.

When the combined battery vo tage drops be ow approximate y 57 vo ts, the batteries are down

to the fina 10% of their capacity. At this vo tage, the motor contro er wi imit the scooter's

power to rough y 300 watts, which is about 40 bs of thrust. At this point you shou d be headed

back to the shore or boat. On the Genesis 600 you wi have 5-7 minutes of run time at that power

and 10-15 minutes on the 1200. By decreasing you speed on either DPV, you can increase the

runtime to get you back to the shore or boat. It shou d a so be noted that most divers do not use

more than 40 bs of thrust in regu ar operation, and you may never notice the reduction in power

if you are a ready operating be ow the reduced power eve . With proper dive p anning, you

shou d never be operating in the ast 10% of the battery capacity.

Whi e scootering around at top speed is fun, it consumes 5-7 times as much power as norma

cruising speeds. Whi e you are earning the performance and runtime characteristics of the

Genesis DPV, it is best to do it in non-cha enging conditions. A data recorder can be insta ed

between the batteries and the tai section, shou d you want to monitor the power consumption

during your dives, to gauge battery capacity. Consu t the factory for assistance in connecting a

data recorder.

Shou d the DPV begin running on its own whi e the trigger is not depressed, the first response

shou d be to turn the speed adjust ever to the OFF position (towards the nozz e). If it continues to

run, remove the recharge connector cover on the nose to disab e the motor contro er. In sa t

water, the cover may need to be partia y insta ed over 3 pins (Fig. 9) to interrupt the connection

since sa twater is much more conductive than fresh water. Another option to stop the prope er

rotation is to insert a non- ife-support piece of equipment into the nozz e in et, such as a iftbag or

ine from a spoo or tow cord. This shou d decoup e the magnetic prope er coup ing and a ow the

prope er assemb y to be removed by hand once the prope er has stopped spinning, even though

the motor inside is sti running. NEVER NEVER NEVER use your hand to attempt to stop a

rotating propeller, even at the slowest speed !!!

IF THE DPV CANNOT E CONTROLLED, SEPARATE YOURSELF FROM IT IMMEDIATELY!

Figure 9 - Cover installation to disable motor controller in salt water

If the DPV becomes abnorma y negative y buoyant during a dive, it may be f ooding. If conditions

permit, swim it to the surface and remove it from the water. If it becomes too heavy or deco

ob igations prohibit swimming it up, in open water, disconnect it from yourse f, connect the tow

cord to a ift bag and send it to the surface with a ift bag that has at east 50 bs of ift for the

Genesis 1200 and 40 bs of ift for the Genesis 600. In confined water, disconnect it from yourse f,

attach a ift bag to the scooter to maintain neutra buoyancy and swim it to open water, or eave

tied off to something in the cave or wreck to be retrieved ater.

A sma amount of water in the body is genera y not a concern even if it is sa t water. Remove the

battery modu e and dry it. A so, wipe out the inside of the body. If the eak source can be ocated

and repaired, it is recommended to sti et everything air dry at east 12 hours in a warm, dry

environment before c osing the DPV up.

If a arge amount of water enters the DPV or it f oods comp ete y, dry off everything possib e and

return it to the factory for repair as soon as possib e.

Post Dive

Note

The prope er coup ing has very strong magnets that require a quick, strong pu

to remove from the tai . When reinsta ing the prope er assemb y into the tai

section, ensure you have a firm grip on the prope er hub, insert it s ow y and

expect a very strong pu as it goes in. Do not et it be sucked in unrestrained.

For freshwater diving, at the end of the ast dive of the day, s ide the rubber band that covers the

body/tai connection forward and remove the recharge p ug cover from the nose of the DPV.

Remove the prope er assemb y, drain any water from the prope er coup ing cavity and carefu y

reinsert the prope er.

For sa twater diving, s ide the rubber band that covers the body/tai connection forward and

remove the prope er from the tai section. Rinse the prope er by dunking it in fresh water a few

times and then rinse the DPV by submerging it in fresh water for twenty minutes. Remove the

recharge p ug cover from the nose when the DPV is removed from the rinse bath. If a rinse bath is

not avai ab e, remove one orange p astic ocking strip between the tai and the body, rinse the

strip and direct the f ow of fresh water from a hose, into the s ot for a minute or two. Reinsta the

first strip and repeat the process with the second strip removed and then rinse the rest of the DPV.

Drain any water from the prope er coup ing cavity and carefu y reinsert the prope er.

If you think you may have discharged the batteries be ow 40% capacity, recharge the batteries

before storing the DPV as suggested in the Recharging section of the manua .

If you wi be storing the DPV for more than one month before the next dive, it is recommended to

open the DPV and disconnect the batteries. This wi prevent the need for a maintenance charge

being performed due to a very sma vo tage drain needed by the charger, to sense the batteries.

A ways remember to remove the recharge p ug

cover when not in use or the batteries may be

permanent y damaged by over discharge. Over

discharge is not covered by the warranty!

Care and Maintenance

The Genesis DPVs are designed so that minimum maintenance is required. A thorough rinse after

diving in sa t water is the most important preventative maintenance item. A ways s ide the rubber

band forward of the body/tai connection to a ow water to drain and dry between days of diving.

Whenever the body is removed, carefu y check the o-rings, o-ring grooves and body sea ing

surfaces for dirt or debris. Check the o-rings for nicks or deformation and generous y grease with

Dow Corning Mo ykote 111 va ve ubricant or equiva ent. The body o-rings are Buna-N, size -168,

70 durometer. Two spare body o-rings are inc uded and it is best to keep them pre-greased in a

p astic bag with the spare orange p astic ock strips, inside the DPV, so they are a ways avai ab e,

shou d you need them.

Lubricate the recharge connector on the nose as needed with si icone spray ubricant or a very,

very sma amount of si icone grease. Too much grease wi attract sand and dirt which can

damage the sea ing surfaces of the connector and a so become packed in the bottom of the cover

and charger cab e ho es, preventing good contact.

CAUTION

Do not app y any petro eum based ubricants to the recharging

connector p ug, cover or charger cab e.

If the vacuum/pressure test p ug on the nose has been removed, inspect the o-ring carefu y and

rep ace if necessary. Use a Buna-N, size -904, 70 or 90 durometer o-ring and a generous amount

of si icone grease. Insta the p ug and then wipe off the excess grease.

The thick washers used on the 12 screws that fasten the nozz e struts to the tai cone are zinc

anodes. Shou d they deve op a white powdery fi m, c ean them with a toothbrush or soft wire

brush fo owing a dive, as the powdery materia wi be softer when wet. The white powdery

residue must be c eaned off for them to proper y function as anodes. Do not app y any ubricant

or protectant coatings to the anodes. They are sacrificia and must be a owed to corrode, to

protect the DPV. You may remove these 12 screws to inspect for corrosion on the threaded ho es

in the tai cone. Grease the ho es (using a toothpick to get the grease in side) and screws with

AquaShie d (former y know as AquaLube) marine ubricant from the DA Stuart Company prior to

reassemb y and rep ace the anodes as necessary. Torque screws to 35 in- b. Additiona y, check

the torque on the 12 screws that attach the nozz e struts to the nozz e (torque 30 in- b).

Vacuum & Pressure Testing

The test port on the nose of the DPV can be used for eak testing the DPV. A test gauge assemb y

can be ordered from the factory or assemb ed by the owner with off-the-she f fittings. A ist of

materia s is avai ab e on request. A bicyc e pump is a that is required for a simp e pressure test.

Procedure

1. Remove the battery assemb y from the DPV and a so the test port p ug from the nose,

using an 11/16" socket.

2. Remove the center screw from the row of battery connectors on the tai section.

This wi a ow air to f ow free y between the tai and body. Fai ing to remove this screw can

give a fa se indication of a eak.

3. Insta the body onto the tai section and insta the ock strips as usua .

4. Insta the test gauge into the test port on y hand snug. Over tightening the fitting can

damage the anodizing and ead to corrosion at the test port.

5. Pressurize the DPV to 3-5 psi with a bicyc e pump or simi ar.

Note

It is possib e to have s ight pressure changes during the pressure

test due to changes in temperature. Do not re y on visua gauge

indication of no pressure change, when ru ing out a eak.

11. If a eak is suspected, the DPV shou d be immersed in water during the pressure test.

It wi be significant y buoyant with the batteries removed.

12. When finished, vent the body with the re ief va ve on the gauge assemb y and remove it.

Reinsta the test port p ug and the screw for the battery connectors.

Data Loggers

If you wish to insta a data ogger to monitor power consumption, it wi need to be configured per

the diagram be ow ( Fig. 10) The scooter vo tage can be as high as 67.0V and the current as high

as 20A, so the data ogger needs to be rated according y. You wi need to make a jumper to

connect the two batteries in series. To avoid a high current spike on to the data ogger, ensure the

circu ar connector is removed and p ug the batteries into the tai section to charge up the

capacitors before insta ing the ogger. Insta the ogger per the diagram, connecting it to the

batteries first ant the tai second before connecting the circu ar connector. You wi not be ab e

the recharge the DPV with the data ogger insta ed.

Figure 10 - Data ogger connection diagram

Power charts (Planning)

The power charts on the fo owing page can be used to estimate performance and battery duration.

Actua battery capacity shou d be verified before it is re ied upon. The "Speed to Power Estimate"

chart was based on data from average sized divers configured in drysuits with a sing e tank on a

back p ate and wing. Adjustments shou d be made for higher or ower drag diver configurations.

High y oaded technica divers (doub es and stages) and arger individua s shou d expect a 10-20%

decrease in speed from the charted va ue, at the same power eve . Sma er divers or wetsuits wi

see a speed increase.

To estimate speed and range for p anning purposes, first obtain the corrected speed for your

configuration. Next, enter the chart with the corrected speed unti the first ine is intersected.

Proceed vertica y down unti the second ine is intersected and then horizonta y to the right to the

power estimate. You shou d never p an on using 100% of the battery capacity, 70-80% is a good

capacity to p an on and eaves room for issues that may arise, but 66% is used for the ru e of thirds.

Even more conservative battery capacity ca cu ations shou d be used, if you might be required to

tow another diver with a dead DPV, as that wi increase drag, and the power required to cover the

same distance in the same time. Mu tip y the battery capacity by the percentage of battery p anned

for and divide by the power estimate from the chart to obtain a run time in hours. Mu tip y the run

time by 60 (min/hour) and the intended speed to ca cu ate the range.

Example:

Intended speed 175 ft/min (fpm)

Increased drag correction: +15% (doub es and two stages)

Actua battery capacity: 610 Wh

P anned battery capacity to use: 66%

Corrected speed: 175 fpm x 1.15 = 201 fpm

Into chart with 201 fpm resu ts in 300 W of power req'd

Battery reduction: 610 Wh x .66 = 402 Wh

Runtime: 402 Wh/300 W = 1.34 hours

Distance: 1.34 hrs x 60 min/hr x 175 fpm = 14070 feet or 2.66 mi es

*Actua y maintaining the intended speed requires experience and shou d be practiced before a

critica dive.

Speed to Power Estimate (single tank)

100

125

150

175

200

225

250

275

300

Speed (Ft/Min)

100

200

300

400

500

600

700

800

900

1000

1100

1200

Power (Watts)

Input Power vs. Static Thrust

100

200

300

400

500

600

700

800

900

1000

1100

1200

10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0

Thrust (lbs)

Watts

Warranty

The Genesis DPV and battery charger have a 1 year imited warranty on a materia s and

workmanship provided by Ne is Engineering Inc, when used for their intended purposes under

norma conditions, with the fo owing exceptions.

1. The batteries have a one year warranty on materia s and workmanship from date of

de ivery. The battery warranty does not cover abuse, neg ect or operator error.

2. Damage from f ooding of the DPV due the fai ure of o-ring(s) that are serviceab e by the

owner or from damage to the DPV structure, is not covered under this warranty. A DPVs

pass an extensive pressure and vacuum eak test before shipping to ensure they are eak

free when de ivered from the factory.

3. The battery charger is not covered for water damage.

4. Structura or cosmetic damage from abuse or corrosion is not covered.

5. Damage from modification, or attempted modification.

6. Damage from servicing by unauthorized individua s.

7. Ne is Engineering, Inc. wi not be iab e for any oss, damages or expenses, to inc ude

incidenta , specia , consequentia or co atera damages, arising direct y or indirect y

from the sa e or use of the equipment.

THIS WRITTEN WARRANTY IS THE SOLE WARRANTY AND SUPERSEDES ALL OTHER EXPRESSED OR

IMPLIED WARRANTIES, INCLUDING WARRANTY OF FITNESS OR MERCHANTABILITY, TO THE EXTENT

PERMITTED BY APPLICABLE LAW. SHOULD AN IMPLIED WARRANTY BE REQUIRED BY LAW, IT IS

LIMITED TO THE DURATION OF THIS WRITTEN WARRANTY.

To receive warranty repair, contact the factory for an RMA number prior to returning any

equipment for repair. A shipping charges to and from the factory are the responsibi ity of the

equipment owner.

SPECIFICATIONS

600

1200

1500

Weight

bs (kg)

33.5 (15.2)

44.9 (20.4)

49.5 (22.5)

Length

inch (cm)

24.3 (61.7)

30.8 (78.1)

33.6 (85.2)

Max Static Thrust

bs (kg) [N]

90 (41) [400]

Approx

Range at 150 fpm (45mpm

)

mi (km)

6.9 (11.1)

13.8 (22.2)

17.3 (27.8)

Approximate Range at 2 knts

5.0 (6.4)

10.0 (12.9)

12.5 (16.1)

Standard Depth Rating

660fsw / 200msw

Battery Type

Lithium Ion Po ymer

Nomina Battery Capacity

675

1350

1687

Nomina

Battery

Vo tage

2ea at 29.6V in series (59.2V Tota )

Charger Input Vo tage

96-264VAC

Recharge Time

5 hours

hours

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