drive HX2 9TN Seren Powerchair User Manual

Seren Powerchair
User Manual
SEREN
Instruction Booklet

INTRODUCTION

Thank you and congratulations on purchasing your new Drive DeVilbiss Power Chair. It is designed to provide you with transportation ability indoors and outdoors.
We pride ourselves in providing safe and comfortable products. Our goal is to ensure your complete satisfaction. We sincerely hope you enjoy your Power Chair.
Please read and observe all warnings and instruction provided in this owner’s manual before you operate any of the various convenient functions of this Power Chair. Please retain this booklet for future reference.
In case of a serious incident with the product, you should inform the manufacturer and the competent authority in your country.
If you have any queries or concerns, please contact Drive DeVilbiss Healthcare Ltd or your local dealer.

| European Representative :
MedNet EC-REP GmbH
Borkstrasse 10,
48163 Muenster,
Germany
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**| Manufacturer :
Chien Ti Enterprise Co., Ltd
No.13, Lane 227 Fu Ying Rd,
Hsin Chuang District,
New Taipei City, Taiwan
| Importer** :
Drive DeVilbiss Healthcare Ltd.
Sidhil Business Park, Holmfield,
Halifax, West Yorkshire,
HX2 9TN, Great Britain

IMPORTANT PRECAUTIONS

• Only one person at a time can ride a Drive DeVilbiss Power Chair.
• Maximum load is 136 kg/300 lbs.
• Turn off power before getting on or off your power chair.
• Always drive carefully with your feet on the footplate and be aware of others in your area.
• Always use pedestrian crossings wherever possible. Take extreme when care crossing roads.
• Do not drive on slopes exceeding 6 degrees, and take extreme care when turning on slopes.
• Do not use full power when turning to sharp corners.
• Take great care and drive in low speeds when backing up, riding downhill, or on uneven surfaces and climbing curb.
• The power chair may not operate well in high humidity.
• Never put your power chair in neutral when staying on slopes.
• Follow all traffic laws when riding in the vicinity of public roads.
• It is NOT recommended to use your power chair in wet environments as it may cause damage.

**** This powerchair must not be used as a seat in a motor vehicle.

ELECTROMAGNETIC INTERFERENCE AND WARNINGS

CAUTION: It is very important that you read this information regarding the possible effects of Electromagnetic Interference on your power chair.
Powered wheelchairs and motorized power chair may be susceptible to electromagnetic interference (EMI), which is interfering electromagnetic energy (EM) emitted from sources such a radio stations, TV stations, amateur radio (HAM) transmitters, two-way radios, and cellular phones. The interference (from radio wave sources) can cause the motorized power chair to release its brakes, move by itself, or move in unintended directions. It can also permanently damage the motorized power chair control system. The intensity of the interfering EM energy can be measured in volts per meter (V/m). Each motorized power chair can resist EMI up to a certain intensity. This is called its “immunity level.” The higher the immunity level, the greater the protection will be. At this time, current technology is capable of achieving at least a 20 V/m immunity level, which would provide useful protection from the more common sources of radiated EMI. The immunity level of this motorized power chair model is 20 V/m. There are a number of sources of relatively intense electromagnetic fields in the everyday environment. Some of these sources are obvious and easy to avoid. Others are not apparent and exposure is unavoidable. However, we believe that by following the warnings listed below, your risk to EMI will be minimized.
The sources of radiated EMI can be broadly classified into three types：

1. Hand-held portable transceivers (transmitters-receivers) with the antenna mounted directly on the transmitting unit. Examples include: citizens band (CB) radios, “walkie talkie,” security, fire, and police transceivers, cellular telephones, and other personal
   communication devices.
   **** Some cellular telephones and similar devices transmit signals while they are ON, even when not being used.

2. Medium-range mobile transceivers, such as those used in police cars, fire trucks, ambulances, and taxis. These usually have the antenna mounted on the outside of the vehicle.

3. Long-range transmitters and transceivers such as commercial broadcast transmitters (radio and TV broadcast antenna towers) and amateur (HAM) radios.

** Other types of hand-held devices, such as cordless phones, laptop computers, AM/FM radios, TV sets, CD players, and cassette players, and small appliances, such as electric shavers and hair dryers, so far as we know, are not likely to cause EMI problems to your motorized power chair.
Power Chair Electromagnetic Interference：
Because EM energy rapidly becomes more intense as one moves closer to the transmitting antenna (source), the EM fields from hand-held radio wave sources (transceivers) are of special concern. It is possible to unintentionally bring high levels of EM energy very close to the power chair control system while using these devices. This can affect power chair movement and braking. Therefore, the warnings listed below are recommended to prevent possible interference with the control system of the power chair.
Warnings :** Electromagnetic interference (EMI) from sources such as radio and TV stations, amateur radio (HAM) transmitters, two-way radios, and cellular phones can affect the power chair. Following the warnings listed below should reduce the chance of unintended brake release or power chair movement, which could result in serious injury.

1. Do not operate hand-held transceivers (transmitters-receivers), such as citizens band (CB) radios, or turn ON personal communication devices, such as cellular phones, while the power chair is turned ON;
2. Be aware of nearby transmitters, such as radio or TV stations, and try to avoid coming close to them;
3. If unintended movement or brake release occurs, turn the power chair OFF as soon as it is safe;
4. Be aware that adding accessories or components, or modifying the power chair, may make it more susceptible to EMI; and
5. Report all incidents of unintended movement or brake release to the distributor on the back cover of this manual. Note whether there is a source of EMI nearby.

Important Information

1. 20 volts per meter (V/m) is a generally achievable and useful immunity level against EMI (as of May 1994). The higher the level, the greater the protection.
2. The immunity level of this product is 20 V/m.

SAFETY WARNING AND INSTRUCTION LABELS

1. | Warning Sticker
1.Please read the instruction Booklet carefully before using your Power Chair.
2.Keep the power chair properly maintained
3.Do not drive the power chair on slippery surfaces or on slopes over 6 degrees limit.
4.Do not drive on highway, crowded roads, or unfamiliar areas.
5.Do not turn at high speed in either forward or reverse.
6.Do no wash with water or leave power chair in a humid environment since water can damage the electronic parts.
7.Always re-engage the emergency freewheel device after use.
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| Wiring diagram label
| Left N-D Lever adjustment label which instructs freewheel mode operation.
| Right N-D Lever adjustment label which instructs freewheel mode operation.

PRODUCT OVERVIEW

Before attempting to drive this power chair on your own, it is important that you familiarize yourself with the controls, and how to operate them.
Intended use : The Power Chair provide a means by which a disabled occupant i.e. a disabled person or a person not having the full capacity to walk unaided to have mobility and the freedom to travel.
Indication : The occupant is a person who requires a power chair due to current or anticipated mobility limitations. The C.T.M. power chair are intended to be applicable to at least 50% of adult users, based upon the body size of adult users within the range
50th percentile adult female to 50th percentile adult male the abilities and with vary in weight.
Contra-indications : None known.

JOYSTICK：

• Self Diagnostic Warning Lights
  Flashing of lights indicates there is a problem within power chair. See section Error indication 3 for more information.

• Battery Gauge
  There are eleven LED lights on joystick. When all LED lights are on, batteries are fully charged; The Battery Gauge is used to indicate power on and provides an estimate of the remaining battery capacity.
  Any green LEDs lit indicate well charged batteries.
  If only amber and red LEDs are lit, the batteries are moderately charged. Recharge before undertaking a long trip.
  If only red LEDs are lit, the batteries are running out of charge. Recharge as soon as possible.

• Extendable Bracket
  By releasing Knob (B) the joystick bracket (C) is able to extend and retract. With joystick retracted, this enables you to pull up to any table, and tighten knob (B), when adjusted to a comfortable position.

FOOTPLATE：

• Footplate
  The footplate can be adjusted according to your specific needs. The width and height of the footplate can be adjusted. To adjust footplate, loosen screw and arrange height to desired position, then, tightened screw to secure plate in place. (D & E)
  POWER BASE：

• Free-Wheeling Lever
  When lever is in N (Neutral) position, power chair can be moved manually.
  When lever is in D (Drive) position, power chair can be driven. Normal position is D.
  ARMREST：

• Armrest width & height Adjustment Thumbscrews
  Loosen two thumbscrews to adjust armrest width & height tighten again to lock in desired position.

OPERATING YOUR POWER CHAIR

Before beginning your journey with your new power chair, make sure power chair is on a level surface and clear of any obstacle. Although your power chair is able to climb slopes, it is safer to practice on a levelled surface.

1. Before operating with your power chair, check the following :
   ‧free-wheeling lever is on D.
   ‧speed dial is at the lowest speed (fully turned counter clockwise).

2. Sit on chair and fasten seat belt.

3. When power is turned on, all battery gauge LED lights should be lit lighting. The self diagnostic  warning lights should not be blinking.

4. While resting your arm on armrests, joystick should be within reach. By pushing joystick  slightly forward, power chair will move forward slowly, and pushing joystick fully forward,  chair will move at normal speed.
   And adjusting speed dial will also decrease or increase speed.
   Also, with joystick, you are able to turn chair in 360°. When joystick is let go and  back in centre position, chair will stop.

5. Practice driving where there is no obstacle. Start at slowest speed and move forward and backward; make some turns. As you get more comfortable, you can increase the speed by turning speed dial knob clockwise.

Seat Belt Usage

1. Prior driving fasten the seat belt as the picture illustrates (F) (G). (See Fig. 9)
2. Seat Belt can be unfastened by pressing down the red button (H). (See Fig. 9)

Headrest Adjustment： By pressing (K) to adjust the headrest (J) up & down to a comfortable position.
Seat Adjustment： By lifting up lever (L) to rotate seat (See Fig. 11)
Note : Do not swivel seat angle over 90 degrees, to prevent wires twist.

** While standing up, avoid stepping on footplate as it may cause injury.
The batteries should be charged as soon as possible after each ride. See CHARGING
THE BATTERIES on page 19.
Operation armrest :**

• Pull pin out can release lock and able to lift up armrest.
• Use hex spanner to loosen the screw, adjust armrest height to a comfortable height and fasten the screw.
• By lifting up lever (K) to rotate seat (See Fig. 15)

Seat Adjustment：
(A). Armrests’ Width Adjustment By releasing both sides knobs, and adjust armrests to a comfortable position, then tighten with knobs.

(B). Seat’s Depth Adjustment
By releasing fixation screws from back sides, and adjust to a comfortable position, then tighten with fixation screws.
(C). Backrest Angle Adjustment
By pulling the fixation vel-cro backwards to disengage the pins from the holes, and adjust angle to a comfortable position, then release fixation vel- cro to engage to it’s position.

(D). Seat’s Width Adjustment

1. By taking front&rear and support brace’s fixation screws(9pcs) off.
2. Take off backrest pad by release it’s vel-cro.
3. Release all backrest’s vel-cro straps.
4. Adjust frame to a comfortable width position and adjust vel-cro to appropriate tightness, then put backrest pad back, complete by tighten 9pcs of width fixation screws.

Keep in mind these rules：

• Use your power chair only where it is safe to walk.
• Drive in low speed when reversing, riding downhill on ramp or curb or on uneven surface.

Other Operating Information：
Hill climbing : You may need to use a higher speed. For a higher speed, turn speed dial Down slopes : Proceed with downward, slope slowly, and turn speed dial counter clockwise.
This enables good control when speed is set in slower motion. However, your power chair will not self accelerate down hills due to automatic braking, taking effect should you attempt to drive too fast.
Curb climbing : Approach slowly from right angles to the curb. A direct approach is needed. Do not attempt greater than a 2″ curb.
If Self-Diagnostic Warning Lights start to flash, identify problem from chart in section 3 and take action.
If power chair breaks down and must be moved, please follow below directions :

1. Get off power chair.
2. Push free-wheeling lever to N.
3. Move power chair slowly to a safe location.
4. Push free-wheeling lever back to D.

1 Installation procedure

1. First read and fully understand this manual.

2.  Mount all the electrical parts of the wheelchair system (motors, park brakes, batteries, Power Module, Remote) on the wheelchair to identify physical dimensions.

3. Do not connect any cables before all the parts of the electrical system are mounted.

4. Connect the LiNX LE System Power Module to the motors the park brakes and the Remote.

5. Connect the LiNX LE System Power Module to the batteries.
   Do not turn on the wheelchair yet.
   Warning:
   Do not connect the positive terminal (B+) of the battery to the LiNX LE System Power Module until the wheelchair is completely wired and ready for testing as described in the Testing section.

6. Lift the wheelchair off the ground and check the installation thoroughly.

7.  Program the system to the requirements of a particular wheelchair or user.

8.  Test the system for functionality and safety.

Operation

2.1.1 Power up / down
Note: In the unlikely event that the wheelchair is in a runaway situation, the user can press the Remote’s power button to perform an EMERGENCY STOP. See section 2.1.2 Emergency stop

| To switch ON the LiNX LE System, press the Power button. The Power button is the only user input that can activate the system.
If the system is healthy, the Status indicator (through the Power button) will light up green, and the Battery Gauge will display the current battery status. If there is a fault with the system when powering up, the status indicator will indicate the fault with a series of red flashes (see section 3 Diagnostics). If the fault is one that prevents the system from driving, then the battery gauge will flash continuously.
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| To switch OFF the system, press the Power button; the system will power down and the Status indicator will switch off.
The Power button is also used to perform an EMERGENCY STOP. See next section.

See also: 2.1.9 The status indicator
2.1.2 Emergency stop
If the user needs to stop the wheelchair quickly, the Power button can be pressed to perform an EMERGENCY STOP. The wheelchair will come to a halt quickly; the rate is set by the Emergency Deceleration parameter.
** See also: If this parameter is set too high, the user can lose balance or fall out of the chair.
2.1.3 Drive inhibit indication**
Drive inhibit mode is indicated by the battery gauge with a right-to-left chase sequence.
The chase sequence starts with the green LED on the righthand side, and one- by-one, each LED will switch on and then off. When the sequence completes at the left-most red LED, it begins again at the right-hand side.
The chase sequence continues until the error condition has been cleared.

2.1.4 OONAPU
OONAPU (“Out Of Neutral At Power Up”) is a safety feature that prevents accidental movement of the wheelchair, either when powering up, or when the wheelchair comes out of an inhibit state.
If the LiNX LE System is turned on (or comes out of an inhibit state) while the joystick is not in the centre position, an OONAPU warning is displayed. During an OONAPU warning, the battery gauge LEDs will flash continually to alert the user, and the chair will not drive. If the  joystick is returned to the centre position within five seconds, the warning will clear and thewheelchair will drive normally.
However, if the joystick remains out of neutral for longer than five seconds, an OONAPU error will occur; the error is displayed by the Status indicator flashing red, and the chair will not  drive. To clear the error, return the joystick to the neutral position and power the unit off and then on again.
See also:
3. Error indication
2.1.5 The joystick

The joystick controls the direction and speed of the wheelchair.
When the joystick is deflected from the centre position, the wheelchair will move in the direction of the joystick movement.
The speed of the wheelchair is proportional to the joystick deflection, so that the further the joystick is moved from the centre position, the faster the wheelchair will travel.
The joystick can also be used to wake up the system in sleep mode.
2.1.6 Controlling maximum speed

The speed dial allows the user to limit the maximum speed of the wheelchair (that is, the speed when the joystick is fully deflected) to suit their preference and environment.
The dial offers 10 discrete steps between the lowest speed (dial set to the left) and the highest speed (dial set to the right).
As a visual reminder, a speed symbol (shown left) is positioned just below the speed dial to indicate the low and high positions of the speed dial.
2.1.7 The horn The Horn button is located above the Power button. Press the Horn but- ton to sound the horn. The horn will sound for as long as the Horn button is pressed.
2.1.8 The battery gauge
The battery gauge comprises five different LEDs (1 x RED, 2 x AMBER, 2 x GREEN), situated above the Remote’s Horn button. The number of LEDs lit depends on the status of the battery, as shown below.
The battery gauge LEDs are also used to display charging information. See section 2.2 Battery charging for more details.

2.1.8.1 Normal operation

parameter.

Figure 28 Battery gauge operation
2.1.8.2 High voltage warning

Figure 29 High voltage warning| A high voltage warning is indicated by all LEDs on, and the green LEDs flashing. This occurs when the battery voltage level has risen above the high voltage warning set-point.
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2.1.8.3 Low voltage warning

Figure 30 Low voltage warning| A low voltage warning is indicated with the left-most LED flashing. This occurs when the battery voltage level has
decreased below its low voltage warning set-point.
Charge the battery immediately.
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2.1.8.4 Cut-off voltage

Figure 31 Cut-off voltage| When the battery voltage decreases below the battery cut-off voltage:
‧the first (red) LED will flash on the battery gauge
‧the status indicator (under the power button) will display a flash code 2 or 7
‧the horn will sound once every 10 seconds
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2.1.9 The status indicator

Figure 32 The status indicator| The status indicator is located underneath the power button.
When the LiNX LE System is not powered up, the status indicator is not lit.
When the LiNX LE System is powered up, and there are no faults with the system, the status indicator will be lit green.
If, when powered up, there is a fault with the system, then the status indicator will flash red. The number
of flashes will indicate the type of error. See section  3. Error indication for flash codes.
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**See also: 3 Error indication
2.1.10 The XLR charger connector**

Figure 33 The XLR charger connector| The XLR charger connector, which is located on the right-hand side of the Remote, is used to connect to either a battery charger or the LiNX Access Key.
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** See also: 2.2 Battery charging
Warning: Make sure that the battery charger that is used with the vehicle has a drive inhibit function that is correctly connected for use with the controller. The maximum voltage on the inhibit pin must not exceed 3V if a battery voltage is to be detected when the battery charger is connected. If you are not sure, ask your dealer or vehicle manufacturer. The XLR charger connector on the Remote is to be used exclusively for the intended purpose. Warranty will be voided if any unauthorised device is connected to this port.
2.1.11 The LiNX Communications Bus connector**

| The LiNX Communications Bus connector can be found on the lower front of the Remote (see Figure 34 The Remote: user interface and
connectors). The LiNX Communications Bus loom plugs directly into this socket, providing the Remote with both power and communication
to the power module.
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The lock function
The lock function is used, primarily, to restrict who can use the system, but also can help prevent unintentional use of the controls for when the system is not required for any length of time.
When a system is locked (see below), the system is powered down, and the user controls are not responsive. If the power button is pressed when the system is locked, the locked status is displayed to the user by the Battery Gauge.
To unlock the system, an unlock sequence must be performed (see below) by the user within a specific timeframe. If the sequence is not performed correctly, within the timeframe, the system remains locked.

To lock the system, press and hold the Power button for 4 seconds.
When entering the locked state, the battery gauge will indicate the transition by flashing LEDs 1, 3, and 5 (far left, middle, and far right) 3 times.
To unlock the system, press the Power button once, and then, press the Horn button twice – the Horn button must be pressed twice within 10 seconds of pressing the Power button.
If the user implements the unlock sequence incorrectly, or the Power button is pressed again before the unlock sequence is complete, the system will return to the locked state.
During an unlock attempt, the battery gauge will indicate the system is in a Locked state by flashing LEDs 1, 3, and 5 (far left, middle, and far right) until either the system is powered off, unlocked, or the Sequence Timeout is reached.

2.2 Battery charging
Plug the battery charger into the Remote’s XLR socket.
The Battery Gauge will indicate the system is being charged by cycling between a left-to-right chase sequence, and then displaying the approximate battery charge state at the end of the chase sequence.
Driving is prevented (inhibited) while the system is being charged.
The LE system does not have to be powered up when charging the battery, however, if it is not powered up, then the battery gauge will not display the charging state/ chase sequence.

Warning:
The maximum charging current for the LiNX LE System is 6A.
The wheelchair manufacturer must specify an appropriate battery charger for the batteries used in the wheelchair.
The wheelchair manufacturer must also specify the maximum current of any battery chargers to be used with the controller and warn against using battery chargers of higher current ratings.
The battery charger must have over-current protection in the form of a non- resettable fuse.
It is the responsibility of the wheelchair manufacturer to manage the risks of battery over-charging and any related gas emissions.
To protect the wheelchair wiring from over currents while charging the batteries, chargers must have the ability to reduce their current output when electrically shorted.
3 Error indication

If, when powered up, there is an error with the system, then the status indicator will flash red. The number of flashes will indicate the type of error. These are described in the table below.

For more information about the error, and what to do about it, open the logs within one of the programming & diagnostic tools.

DISASSEMBLING / RE-ASSEMBLING YOUR POWER CHAIR

Taking apart your power chair enables you to save space when keeping it in storage or carrying it along in your vehicle. Powerchair disassembly does not require specialist tools
Joystick Cable Removal：
Please follow instructions below to remove joystick cable (M) from armrest.

1. Unplug joystick cable (See Fig. 37).
2. Press lock pins underneath front and along seat sides to unlock, then lift chair up to remove (See Fig. 38) Joystick cable is tied up by 3 cord clips on armrest (See circles on figure 37). Remove cable from armrest.

Seat Removal：

1. Discount communication bus connector (M)
2. Pull up the seat lock lever (N).
3.  Lift up on seat assembly (O) to remove (See Fig. 38).

Body Shroud Removal：

1. Remove 3 push rivets (P1) from both front shroud (P) and rear shroud (P2).
2. Follow the arrow’s direction to lift up shrouds (See Fig. 39).
   **** use a screwdriver to press down at the centre of the push rivet to release the shroud.

Battery Removal：

1. Disconnect two battery plugs (Q) (See Fig. 40).
2. Unfasten velcro strap that hold batteries in place (See Fig. 41).
3. Remove two batteries (S) (See Fig. 42).

** Be careful when carry the batteries as they are heavy. DO NOT connect the Positive (+) to the Negative (-) battery terminal by any conductive metals.
Re-assemble：
** To re-assemble your power chair, you can repeat disassembly directions in reverse.

CHARGING THE BATTERIES

Your chair is equipped with two, service free 12V 36Ah rechargeable batteries and one 24V/5A  off-Board charger. Batteries must be charged before using power chair for the first time andit is recommended to be charged up to 8 – 14 hours after each day’s use. Be sure power switch is in OFF position and free- wheeling lever is in “D” position.
Charging the batteries：

1. Position power chair next to a standard wall outlet.
2. Insert the battery charger cord into the chair input battery charging socket (XLR charger connector see 2.1.10).
3. Plug the other end of power cord into a standard electrical wall outlet.
4. Switch the charger power On.

Charging indication

1. LED indication
   Flash-rapid Red = Fault
   Flash Red = Standby
   Solid Red = Charging
   Solid Green = Fully charged
   Yellow : power

2. Charger Trouble Shooting
   (A)If LED (CHARGE) light is off
   ‧Check to see clips connection is correct.
   ‧If the battery is fully charged, the LED (CHARGE) light will be solid green.
   ‧If light is still off, the battery may be defective.
   (B)If SOLID RED light can not turn to GREEN
   ‧The battery can not be charged. Please check and recover it.
   (C)If SOLID RED light turns to GREEN immediately
   ‧Check to see the battery is fully charged, if not, the battery may be defective. Check and recover it.

If charging your power chair for over 8 – 14 hours and it does not function, please check :

• fuse is not burned out ‧power chair is turned off ‧circuit breaker is pushed in
• if none of above is the problem, contact your authorized dealer.
  The time needed to recharge will vary depending on depletion of batteries. Charging for longer than necessary will not harm batteries. They cannot be overcharged.

For safety, please follow the guidelines below：

1. DO NOT use the charger if the power cord is damaged.

2. DO NOT use an extension cord when charging your batteries.
   A risk of fire and/or electric shock could be encountered.

3. DO NOT take apart the charger, as this will void the warranty.

Keep in mind these rules：

• Fully charge batteries at least once a month, or more if you use power chair regularly.
  Charge after each trip exceeding 3 kilometers.

• If storing your power chair for some time (1 month or more), make sure that batteries are fully charged, and on returning, charge them again before using power chair. ‧Batteries will only give maximum performance after power chair has been used, and
  batteries have been recharged up to 10 times.
  Please be aware that the travelling range of your power chair is impacted by how fast the batteries are discharged. This will depend on many circumstances, such as ambient temperature, condition of the surface of the road, tyre pressure, weight of the user, driving environment (inclines etc.) and utilisation of your lighting system if fitted. We recommend that you test your local ride with a family member to ensure a safe journey.

CARE AND MAINTENANCE

Taking care of your power chair will keep it in optimal condition. It is recommended that you have your dealer provide a thorough inspection and servicing. Regular cleaning will reveal loose or worn parts and enhance the smooth operation of your powerchair.
Routine maintenance will extend the life and efficiency of your powerchair.
BODY SHROUD : If your power chair is dirty, use a damp or lightly soapy cloth to wipe it down. Do not use running water to wash or rinse power chair in order to protect electrical parts. Polish with an automotive liquid polish.
SEAT AND ARMRESTS : The seat material used by Drive DeVilbiss Healthcare is of high quality and will remain in good condition for many years if treated responsibly. Using a damp cloth helps clean the upholstery greatly. Please note that using power chair outdoors could lead to sun damage to upholstery material, and normal wearing and tearing is not covered under warranty.
SEAT BELT : A damp cloth with mild soap should only be used to clean seat belts. Wipe seat belts gently and remove residue. Do not use any chemical products to clean seat belts as fabric will be weakened.
**** An authorized dealer should handle all maintenance and repair associating with electronics, batteries, motor parts, and tyres. Here are the guidelines that can be followed by authorized dealer.
FLAT SPOT (for solid tyres only) : During storage period, a flat spot may occur to solid tyres. Weather conditions and storage period determine the condition of flat spots. By driving power chair 20 to 30 minutes, flat spots could be eliminated.
TYRE PRESSURE (for air-filled tyres only) :
The condition of tyres and maintenance of specified tyre pressures not only influence tyre life, but also effect road safety to a very considerable extent. Incorrect pressure is often a cause of tyre problems and could result in an accident. The recommended tyre
pressure is 35 psi.
TYRE TREAD : Inspect the tyres frequently for any signs of damage, such as unusual wearing or insufficient tread depth. Tread depth should not be allowed to drop below 1 mm.
ELECTRICAL CONNECTIONS :
Make sure battery terminals and all plug connectors are secured and firmly attached. If battery terminals are corroded, please contact your dealer for replacement.
HARDWARE : Check that all hardware is securely fastened. Replace any missing hardware by contacting your dealer.
STORING : Between uses, your power chair is best stored in a dry location at room temperature.

Other Problems：
‧Power chair will not move when power is turned on :

1. Check Battery Gauge on joystick. All LED lights should be on.
2. Check Self-Diagnostic Warning Light. It should be steady; if it is flashing, see the chart in section 3 for problem identification.
3. Check all electrical connections to be sure they are tight.
4. Make sure batteries are connected correctly. Refer to “Installation of Batteries” in section 1.
5. If none of above correct problem, contact your authorized dealer.
   ‧If charging your power chair for over 14 hours and light on charger does not change to green, then contact your authorized dealer.

SPECIFICATION

Seat Type| Mid-back Seat w/ Adj. Headrest & Seat Belt| Padded, Breathable Ballistic Nylon Back Rest
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Overall Length| 995 mm / 39″| 995 mm / 39″
Overall Width| 610 mm / 24″| 610 mm / 24″
Overall Height| 1080 mm / 42.5″| 930 mm / 37″
Wheels Front| 155 mm / 6″| 155 mm / 6″
Wheels Middle| 260 mm / 10″| 260 mm / 10″
Wheels Rear| 155 mm / 6″| 155 mm / 6″
Weight W/ Batteries| 82 kg / 181 lbs| 80 kg / 176 lbs
Max. Speed| 6.7 kmph / 4.2 mph| 6.7 kmph / 4.2 mph
Weight Capacity| 136 kg / 300 lbs| 136 kg / 300 lbs
Ground Clearance| 60 mm / 2.4″| 60 mm / 2.4″
Grade Climbable| 6 degree| 6 degree
Curb Climbing| 40 mm / 1.6″| 40 mm / 1.6″
Turning Radius| 620 mm / 24.4″| 620 mm / 24.4″
stopping distance| 1.1 meter| 1.1 meter
Brake| Electro-Mechanical| Electro-Mechanical
Seat Width| 490 mm / 19″| 420 – 470 mm / 16.5″ – 18.5″
Seat Depth| 457 mm / 18″| 450 – 475 – 500 mm / 17.7″ – 18.7″ – 19.6″
Armrest Height| 240 mm / 9″| 225 – 280 – 270 mm / 8.9″ – 9.8″ – 10.6″
Seat Back Angle| 102 degree| 100 – 120 degree
Seat Back Height| 630 mm / 24.8″| 445 mm / 17.5″
Drive Train| 2 Motor, Rear-Wheel Drive| 2 Motor, Rear-Wheel Drive
Battery Weight| 24.2 kg / 53 lbs| 24.2 kg / 53 lbs
Motor Size| 420W 4900 r.p.m| 420W 4900 r.p.m
Travel Range| 20 km / 12.4 Miles| 20 km / 12.4 Miles
Battery| (2) 12V. 36Ah| (2) 12V. 36Ah
Charger| 5A Off Board| 5A Off Board
Input Voltage range| 115 / 230 Vac| 115 / 230 Vac
Input frequency range| 50 / 60 Hz| 50 / 60 Hz
Output Voltage| 24 Vdc| 24 Vdc
Charging Output Voltage| 28.8 Vdc| 28.8 Vdc
Output Current| 5A| 5A
Output Power| 144W| 144W

*Subject to change without notice. ( Rev. 10, 2022/12/20)

Warranty Information
Drive DeVilbiss Seren Powerchairs are warranted for 12months (24 months frame) from the date of purchase on side frames and crossbars. (NB Batteries are warranted for 12 months.)
» During the warranty period any parts that have become defective due to faulty workmanship or material will be repaired or replaced without charge by Drive DeVilbiss supplier/dealer
» The warranty excludes tyres, punctures and items that become worn due to normal wear and tear such as upholstery and armrest pads
» The warranty excludes all items that have been subject to undue wear and tear and misuse
» Unauthorised changes or modifications will forfeit your warranty
» If a defect or fault is discovered, the Drive DeVilbiss supplier/dealer from whom the powerchair was purchased should be notified immediately
Limitation of Liability
The warranty does not extend to the consequential costs resulting  from fault clearance, in particular freight and travel costs, loss of earnings, expenses, etc. The manufacturer will not accept responsibility for anydamage or injury caused by misuse or non-observance of the instructions set out in this user manual.
Dealer Stamp

Drive DeVilbiss Healthcare Ltd. Sidhil Business Park,
Holmfield, Halifax, West Yorkshire, HX2 9TN, Great Britain
Tel: 0845 0600 333
Fax: 0845 0600 334
Email: info@drivedevilbiss.co.uk
www.drivedevilbiss.co.uk
Issue: 2022-12 Rev3

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