Chattanooga 2090 User manual

Leading erapy
in a New
Direction!
User Manual
Model 2090
OptiFlex 3 Continuous Passive Motion Unit

OptiFlex® 3 Continuous Passive Motion (CPM)Therapy Unit
TABLE OF CONTENTS
FOREWORD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
ABOUT OPTIFLEX CPM UNIT. . . . . . . . . . . . . . . . . . . . . . . . 24
Precautionary Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Dangers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 511
Unit Familiarization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pendant Familiarization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pendant Functions and Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-11
SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Additional Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
SETUP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1316
Unit Placement and Softgoods Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
New Patient Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-15
Pediatric Footplate Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

OptiFlex® 3 Continuous Passive Motion (CPM) Therapy Unit
1
This manual has been written for the operators of the OptiFlex 3 Continuous Passive Motion (CPM) Therapy Unit. It contains general
instructions for operation, precautionary instructions, and maintenance recommendations. In order to obtain maximum life and
eciency from your OptiFlex 3 CPM Unit, and to assist in the proper operation of the unit, read and understand this manual
thoroughly.
The specications put forth in this manual were in eect at the time of the publication. However, owing to Chattanooga Group’ s
policy of continuous improvement, changes to these specications may be made at any time without obligation on the part of
Chattanooga Group.
Before administering any treatment to a patient, you should become acquainted with the operating procedures, as well as the
indications, contraindications, warnings, and precautions.
Product Description
Continuous Passive Motion is a postoperative procedure designed to aid in patient recovery after joint surgery. This unit is typically
used postoperatively for total knee replacement and Anterior Cruciate Ligament (ACL) repairs. After extensive joint surgery, if a patient
fails to move the joint, tissue around the joint will become sti and scar tissue will form, resulting in a joint with limited range of
motion. By repeatedly exing and extending the aected joint through a prescribed arc of motion for an extended period of time, the
OptiFlex 3 CPM Unit lessens the adverse eects of immobilization and trauma on the knee joint.
FOREWORD
www.ActiveForever.com

OptiFlex® 3 Continuous Passive Motion (CPM)Therapy Unit
2
The precautionary instructions found in this section and throughout
this manual are indicated by specific symbols. Understand these
symbols and their definitions before operating this equipment. The
definition of these symbols are as follows;
Caution-
Text with a “CAUTION”indicator will explain possible safety infractions
that could have the potential to cause minor to moderate injury or
damage to equipment.
Warning-
Text with a “WARNING” indicator will explain possible safety infractions
that will potentially cause serious injury and equipment damage.
Danger-
Text with a “DANGER” indicator will explain possible safety infractions
that are imminently hazardous situations that would result in death or
serious injury.
NOTE:
Throughout this manual “NOTE” may be found. These Notes are helpful
information to aid in the particular area or function being described.
PRECAUTIONARY INSTRUCTIONS
ABOUT OPTIFLEX 3 CPM UNIT

OptiFlex® 3 Continuous Passive Motion (CPM)Therapy Unit
3
Read, understand and practice the precautionary and operating
instructions found in this manual before operating or using the
unit. Know the limitations and hazards associated with using
the OptiFlex 3 Continuous Passive Motion (CPM) Therapy Unit.
Observe any and all precautionary and operational decals placed
on the unit.
Only use OptiFlex 3 on firm, flat, level surfaces.
Extreme caution should be taken when in use with or around
children.
Use OptiFlex 3 only for its intended purpose as described in this
manual.
Turn power switch off before unplugging unit from its power
source.
Do not use the cord to unplug the power cord from the unit.
Grasp at the power cord base.
Transport and store the OptiFlex 3 in temperatures between 0°
and 140 °F (-18° to 60 °C) to prevent damage to the unit or its
components.
Use extra care when touching metal of OptiFlex 3 after exposure
to cold or heat to prevent static shock to persons and or the unit.
Condensation could result and damage OptiFlex 3 if unit is
subjected to periods of low temperatures followed by periods of
high temperatures.
Use care when carrying, transporting or storing the OptiFlex 3
unit to prevent damage to the unit from dropping or improper
transport and storage methods.
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ABOUT OPTIFLEX 3 CPM UNIT

OptiFlex® 3 Continuous Passive Motion (CPM)Therapy Unit
4
ABOUT OPTIFLEX 3 CPM UNIT
Exercise caution when using accessories and auxiliary devices such
as muscle stimulators, cold packs and other modalities. Route lead
wires, hoses, tubes, etc. away from the working mechanism of the
OptiFlex 3 to help prevent damage to the Optiflex 3 and any other
modality used with it.
Unconscious patients or patients under heavy influence of
medication must be constantly attended and monitored while the
OptiFlex 3 is in use.
The OptiFlex 3 unit must be completely visible at all times during
use. Never cover the unit with bedding or any other means of
concealment while in operation.
If the OptiFlex 3 is used in conjunction with the optional OptiFlex
“T”trolley, make certain the OptiFlex 3 unit is resting on the
mattress of the bed and the OptiFlex “T”is suspended with no
weight on the casters to prevent possible movement of the unit
and or possible injury to patient.
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U.S. Federal law restricts this device to sale by, or on the order of, a
physician or licensed practitioner.
Make certain that the unit is electrically grounded by connecting
only to a grounded electrical service receptacle conforming to the
applicable national and local electrical codes.
Keep hair, loose clothing, loose bedding, fingers and toes away
from the hinge components of the unit.
Do not use the OptiFlex 3 outdoors or on wet surfaces. Use only on
firm, flat, stable level surfaces to ensure stability of the unit while in
operation.
Materials of the unit may become flammable or combustible if
exposed to a source of ignition.
Heat generated within the pendant may cause ignition of the
pendant if wrapped in bedding or other materials.
Do not use OptiFlex 3 while smoking or around open flame.
OptiFlex 3 has been designed for protection against the exposure
of urinary incontinence. Precautionary measures should still be
taken when any type of liquid comes in contact with an electrical
apparatus.
Always turn off and unplug unit from electrical source before
servicing or cleaning. Failure to do so could result in electrical
shock or personal injury.
Handle the unit only when unit is dry and hands are dry to prevent
electrical shock.
Do not use the OptiFlex 3 as a toy.
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OptiFlex® 3 Continuous Passive Motion (CPM)Therapy Unit
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UNIT FAMILIARIZATION
NOMENCLATURE
Footplate Mounting Bracket
Footplate and Pendant Storage
Calf Support Assembly
Pendant
(See Page 6) Transport and Storage
Handle
Motor Cover
Footplate Angle
Adjustment Knob
Footplate Angle
Adjustment Knob
Calf Length Adjustment
Knob (One on Each Side)
Unit Base Assembly
Thigh Adjustment Scale
Knob (One on Each Side)
Thigh
Adjustment Scale
(cm)
(One on Each
Side)
Knee Hinge
Knee Potentiometer
and Hinge
Femur Hinge
Assembly
(One on
Each Side)
Thigh
Support
Assembly

OptiFlex® 3 Continuous Passive Motion (CPM)Therapy Unit
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NOMENCLATURE
PENDANT FAMILIARIZATION
Start/Stop
(Emergency Stop)
Start or Stop Treatment.
Comfort Zone™
Temporarily decreases the flexion ROM*
when discomfort is experienced.
Up Arrow
Allows user to increase
treatment parameters.
Down Arrow
Allows user to decrease
treatment parameters.
Progressive ROM™ *
Unit will automatically increase the
programmed flexion angle by 1° every hour
up to a maximum of 5° per day.
Oscillation Zone™
Carriage will oscillate three times between
the flexion angle and 10° less than
the flexion angle.
Fast Back™
Carriage will slow down within 15° of
the flexion angle.
Extension/Flexion Delay
Allows user to program carriage to stop at both the
extension and flexion angle for the time programmed.
Speed
Adjusts the speed of operation.
Flexion
Adjusts the flexion angle.
Extension
Adjusts the extension angle.
Reset
Clear previous treatment
settings and completed
cycles.
Mode
Used with Fast Back, Oscillation Zone,
and Progressive ROM*
* Range of Motion

OptiFlex® 3 Continuous Passive Motion (CPM)Therapy Unit
7
NOMENCLATURE
PENDANT FUNCTIONS AND USE
All user input and feedback is provided through the pendant. The
following are descriptions of each button provided with OptiFlex® 3.
Extension: View and modify the extension angle
parameter.
How to use: To view the extension angle, press and hold
the Extension button. To modify the current extension
angle, press and hold the Extension button while
pressing either the Up or Down Arrow.
Flexion: View and modify the flexion angle parameter.
How to use: To view the flexion angle, press and hold
the Flexion button. To modify the current flexion angle,
press and hold the Flexion button while pressing either
the Up or Down Arrow.
Speed: View and modify the speed parameter.
How to use: To view the speed, press and hold the
Speed button. To modify the current speed, press and
hold the Speed button while pressing either the Up or
Down Arrow.
Extension/Flexion Delay: View and modify the
delay time for the extension or flexion angles. Using
Extension/Flexion Delay will cause the carriage to
stop at the extension and flexion angle for the time
programmed.
How to use: To view the extension/flexion delay time,
press and hold the Extension/Flexion Delay button.
You can set independent Delay times for extension
and flexion. If an extension and or flexion delay time is
required, simply hold down the Delay button and the
Extension or Flexion button and use the Up or Down
Arrows to adjust the time.
Up Arrow: Increases treatment parameters in
conjunction with other buttons.
How to use: Select the specific function to increase
(Speed, Extension, Flexion or Extension/Flexion Delay).
While pressing and holding the appropriate button,
use the Up Arrow to increase the value of the specified
function.
Down Arrow: Decreases treatment parameters in
conjunction with other buttons.
How to use: Select the specific function to decrease
(Speed, Extension, Flexion or Extension/Flexion Delay).
While pressing and holding the appropriate button, use
the Down Arrow to decrease the value of the specified
function.
Reset: Resets all parameter and patient counters to
factory defaults.
How to Use: To reset patient compliance counters, press
and hold lightly by inserting a paper clip and accept
reset by pressing the Mode button. To display total unit
run time and cycles, press and hold Reset for 3 seconds,
the total unit time and cycles are temporarily displayed.

OptiFlex® 3 Continuous Passive Motion (CPM)Therapy Unit
8
NOMENCLATURE
PENDANT FUNCTIONS AND USE
Start/Stop (Emergency Stop): Starts or stops the
treatment.
How to Use: Press the Start/Stop (Emergency Stop)
button to begin or end the treatment.
NOTE: When unit is stopped and the Start/Stop
(Emergency Stop) button is pressed, the unit will
immediately begin moving in the opposite direction of the
last movement.
Comfort Zone™:Temporarily decreases the flexion
ROM when discomfort is experienced during treatment.
How to Use: Press and the carriage will immediately
reverse direction to move toward the extension angle.
For the next five cycles, the carriage will operate in a
range 5° less than the angle where the button was
pressed. The Comfort Zone Flexion Angle is 5° less than
the angle where the button was pressed. Once five
cycles are complete, the Comfort Zone Flexion Angle
will be increased by 1° each consecutive cycle until it
reaches the currently Programmed Flexion Angle. See
Chart 1.
NOTE: If Comfort Zone is pressed within 30° of the
currently Programmed Extension Angle, treatment will
stop and the message "Comfort Zone Too Small" will be
displayed.
If pain is severe, do not use the Comfort Zone function. Stop
treatment immediately. Failure to stop treatment could result in
tissue damage and could compromise the surgical repair.
•
C= Comfort Zone activated temporary flexion limit established.
5° = 5° less than the angle where Comfort Zone was activated.
Upon completion of five cycles, ROM will increase by 1° each cycle until it reaches P.
P= Programmed Flexion angle.
S= Start/Finish.
CHART 1 COMFORT ZONE

OptiFlex® 3 Continuous Passive Motion (CPM)Therapy Unit
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NOMENCLATURE
PENDANT FUNCTIONS AND USE
Mode: Used together with Fast Back™, Oscillation
Zone™and Progressive ROM button to enable and
disable the appropriate mode. All three modes or any
combination may be used at once.
How to Use: Press Mode button along with desired
function (Fast Back, Oscillation Zone and/or
Progressive ROM).
Fast Back™: When the carriage reaches 15° less
than the Programmed Flexion Angle, it will begin to
slow down. The deceleration rate will be half of the
Programmed Speed when the carriage comes within
10° of the flexion angle. Upon reaching the flexion
angle, the carriage will reverse direction and resume the
Programmed Speed as it moves towards the extension
angle. See Chart 2.
How to Use: While pressing and holding the Mode
button, press the Fast Back button to enable the Fast
Back mode.
NOTE: If both Fast Back and Oscillation Zone modes
are enabled, the carriage will move at the slower of 75°/
min. and half of the Programmed Speed while in the
Oscillation Zone ROM.
Non-Working ROM
Fast Speed
Fast Speed
Working ROM
(10°)
Slow Speed
Fast Speed
Working ROM
Speed = 60°/
min.
CHART 2 FAST BACK
F= Programmed Flexion Angle
E= Programmed Extension Angle

OptiFlex® 3 Continuous Passive Motion (CPM)Therapy Unit
10
NOMENCLATURE
PENDANT FUNCTIONS AND USE
Oscillation Zone™:When the carriage reaches the
Programmed Flexion Angle, it will oscillate between the
Programmed Flexion Angle and 10° less than the flexion
angle, three times. The 10° range of motion is known
as the Oscillation Zone ROM. While in the Oscillation
Zone ROM, the carriage will move at 75°/min. or the
Programmed Speed, whichever is slower. On the third
oscillation cycle, the carriage will hold at the flexion
angle for the Programmed Extension/Flexion Delay
Time. See Chart 3.
How to Use: While pressing and holding the Mode
button, press the Oscillation Zone button to enable the
Oscillation Zone mode.
NOTE: If both Fast Back™and Oscillation Zone modes
are enabled, the carriage will move at the slower of 75°/
min. and half of the Programmed Speed while in the
Oscillation Zone ROM.
Progressive ROM™:When Progressive ROM is
activated, the unit will automatically increase the
Programmed Flexion Angle by 1° every hour, up to a
maximum of 5° per 24 hour period. See Chart 4.
How to Use: Press and hold the Mode button. Press the
Progressive ROM button to enable the Progressive
ROM mode. Set the desired Final Flexion Angle by
pressing and holding the Flexion Button while using
the Up and Down Arrows. Accept the Final Flexion
Angle by pressing the Mode Button.
NOTE: The unit must run for a full hour at the entire
ROM before the flexion angle will be increased.
Decreasing the flexion angle will automatically
deactivate this mode.
Non-Working ROM Working ROM
(10°)
Carriage oscillates
3 times before
holding on the
last cycle.
CHART 3 OSCILLATION ZONE
H= Optional Hold on Extension /Flexion Limit
*= Start / Finish
F= Programmed Flexion Angle
Day 1
5° Increase
per Day
CHART 4 KNEE FLEXION ROM VS. TIME
I= Initial Knee Flexion ROM
F= Final Knee Flexion ROM
ROM = I + D(n-1)x 5
where n is the number of days of therapy
Day 2 Day 3 Day 4 Day 5 Day 6 Day 7

OptiFlex® 3 Continuous Passive Motion (CPM)Therapy Unit
11
NOMENCLATURE
PENDANT FUNCTIONS AND USE
Independent Delay Time
You can set independent Delay times for extension and flexion. If an
extension and or flexion delay time is required, simply hold down the
Delay button and the Extension or Flexion button and use the Up or
Down Arrows to adjust the time.
Selectable Scrolling
The scrolling feature is disabled at the factory. Should you desire
to enable this feature, simply press and hold the Delay and Mode
buttons. The display will scroll patient data for two cycles then return
to displaying Current Carriage Angle.
Patient Lock-Out
The Patient Lock-Out feature prevents the patient from changing any
parameter except Comfort Zone™and Start/Stop (Emergency Stop).
To enable the Patient Lock-Out feature: Press and hold the Up Arrow
and the Mode button for three seconds. A single short beep will
confirm that the feature has been activated.
Repeating the above sequence will deactivate the feature. A single
short beep will confirm that the feature has been deactivated.
Language Selection
To select display language, press and hold the Mode and Extension
buttons simultaneously for 3 seconds. Use and arrows to select desired
language and then press Mode to accept.
Force Reversal
Force Reversal is a programmed setting that will automatically reverse
the direction of the leg orthosis if the device detects a greater amount
of resistance than what is programmed. Force Reversal allows you to
set the amount of force required to passively move the joint without
causing unnecessary pain or damage to the surgery.
The Force Reversal feature has 10 sensitivity settings, with a minimum
setting of 1.
NOTE: The maximum setting of 10 is the factory default and functions
as carriage obstruction.
To change the Force Reversal sensitivity setting, press and hold the
Speed and Extension/Flexion Delay buttons simultaneously and use
the down arrow to decrease the sensitivity setting.

OptiFlex® 3 Continuous Passive Motion (CPM)Therapy Unit
12
SPECIFICATIONS
TECHNICAL SPECIFICATIONS
MODEL 2090
Input: 100 - 240 VAC~50/60 Hz, 75 VA
Weight: 27 lbs (12 kg)
Length: 37 in (94 cm)
Electrical Class: Class I, Type B
Operation
Knee Flexion ROM Limit: 120°
Knee Extension Limit: 10° Hyper Extension
Knee Speed Range : 30°/min. to 150°/min. Nominal
Maximum Patient Weight: 350 lbs (159kg)
Calf Length Range: 10 to 23.5 in (25.4 to 59.7 cm)
(knee joint to sole of foot)
Thigh Length Range: 12 to 19 in (30.5 to 48.3 cm)
(hip joint to knee joint)
Transportation and Storage
Unit should be transported and stored within the following conditions:
Temperature: 0° - 140°F (32° - 60°C)
Humidity: 0% - 75% Relative Humidity
ADDITIONAL DEFINITIONS:
ROM- “Range Of Motion”.
Standby Power ON Standby Power OFF
Emergency Stop Start
Type B Equipment Attention, Consult
Accompanying Documents
OptiFlex®3 complies with the following Safety Standards:
UL 60601-1
CAN/CSA C22.2 No. 601.1-M90 w/AZ
IEC/EN 60601-1
IEC/EN 60601-1-2
Meets MDD 93/42/EEC, CE 0413
Type “B” Equipment, Class I
Suitable for continuous operation

OptiFlex® 3 Continuous Passive Motion (CPM)Therapy Unit
13
SETUP
1. Place the unit on a level surface.
2. Install the Softgoods Kit to the carriage of the OptiFlex 3. Use the
installation instructions packaged with the Softgoods kit.
3. Plug the unit into an approved grounded outlet. Turn the power on.
Place the unit on a level surface. Use of the unit on unstable
surfaces do not give the stability the unit requires. If the unit
becomes unstable, serious injury to the patient may occur.
The Softgoods Kit is for single patient use only. A new Softgoods
Kit must be used for each new patient.
Make certain that the unit is electrically grounded by connecting
only to a grounded electrical service receptacle conforming to the
applicable national and local electrical codes.
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Chattanooga Group Softgoods Kit (Part Number 20533) is
designed specifically for the OptiFlex 3 unit. Attempted use of any
other brand of CPM Softgoods Kit may cause malfunction of the
unit and injury or discomfort to the patient.
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UNIT PLACEMENT AND SOFTGOODS INSTALLATION

OptiFlex® 3 Continuous Passive Motion (CPM)Therapy Unit
14
SETUP
NEW PATIENT SETUP
Reset Pendant
Depress the Reset on the Pendant
(i.e. paper clip, pen, etc.). With Reset
depressed, press the Mode Button.
The Unit is now ready for new patient
parameter input. Refer to pages 7 through
11.
Measuring Patient
Measure the patient from the hip joint
(greater trochanter) to the knee in
centimeters.
Adjust OptiFlex Femur Component
Loosen the Thigh Adjustment Scale Knobs
on each side of the unit. Raise or lower the
unit to the measured distance. Tighten the
Thigh Adjustment Scale Knobs.
Placing Patient
Place the OptiFlex 3 unit, with Softgoods Kit
installed, under the patient’s leg.
Align patient’s knee with the unit hinge.

OptiFlex® 3 Continuous Passive Motion (CPM)Therapy Unit
15
SETUP
NEW PATIENT SETUP
Securing Patient
After patient is positioned and all
adjustments are made, secure the patient
to the OptiFlex 3 using the strap included
in the Softgoods Kit.
Starting/Stopping Treatment
After all parameters have been made, see
pages 7 through 11, start treatment by
pressing the Start/Stop (Emergency Stop)
button.
Stop Treatment by pressing the Start/Stop
(Emergency Stop) button.
Comfort Zone
™
If the patient experiences discomfort, the
Comfort Zone button may be pressed
and the carriage will immediately reverse
direction and move toward the extension
angle. For the next five cycles, the carriage
will operate in a range 5° less than the angle
where the button was pressed. Once five
cycles are complete, the Comfort Zone
Flexion Angle will increase by 1° each cycle
until it reaches the Programmed Flexion
Angle.
Emergency Stop
Should the patient need to stop the
treatment , they may press the Start/Stop
(Emergency Stop) button once and
treatment will immediately stop.

OptiFlex® 3 Continuous Passive Motion (CPM)Therapy Unit
16
SETUP
PEDIATRIC FOOTPLATE SETUP
Pediatric Footplate
Remove footplate from unit. Lay aside for
re-installation.
Loosen the tibial adjustment knobs and
pull out the footplate assembly.
Rotate the footplate assembly 180° and
reinsert into the tibial adjustment tubes.
Tighten the tibial adjustment knobs.
Loosen the footplate adjustment knobs and
rotate footplate support as shown. Tighten
the footplate adjustment knobs.
Re-install footplate.
ACCESSORIES
Patient Kits
20533  OptiFlex Patient Kit
40128  34” Strap Kit
OptiFlex 3 CPM Unit Accessories
89900  OptiFlex Bedmount
89928 – OptiFlex Storage Rack
2031 – OptiFlex T Trolley
2032 – OptiFlex Lift

OptiFlex® 3 Continuous Passive Motion (CPM)Therapy Unit
17
TROUBLESHOOTING
ERROR ERROR DEFINITION PROBABLE CAUSE POSSIBLE REMEDY
1 & 2 Pendant isn't communicating correctly with unit. Defective Cable, Pendant or Main
Board.
• Replace the Cable, Pendant or Main Board.
• Return to Chattanooga Group for service.
3 Error reading the EEPROM on the motor pcb. Defective Cable, Pendant or Main
Board.
• Replace the Cable, Pendant or Main Board.
• Return to Chattanooga Group for service.
5 RTC battery voltage is too low indicating bad
battery.
Pendant Battery Voltage is low. • Replace the Pendant Battery.
• Return to Chattanooga Group for service.
6 A general error on the motor pcb has occurred. Main Board Failure. • Replace the Main Board.
• Return to Chattanooga Group for service.
7 The angle pot sensor is out of range. Carriage angle below -10° limit. • Loosen the Femur Adjustment Knobs. Raise the
carriage to above zero and tighten the Femur
Adjustment Knobs. Turn the unit off and Back on
with the power switch.
8 The angle pot is not changing when the carriage is
supposed to be moving.
Carriage obstruction or the Angle Pot
Screw is loose.
• Remove the obstruction.
• Tighten the Angle Pot Screw.
• Return to Chattanooga Group for service.
9 The motor tachometer does not match expected
value.
Main Board Failure. • Replace the Main Board.
• Return to Chattanooga Group for service.
10 The motor pcb has not communicated with the
pendant in a reasonable amount of time.
Main Board Failure. • Replace the Main Board.
• Return to Chattanooga Group for service.
11 The motor pcb was reset via the watchdog. Main Board Failure. • Replace the main board.
• Return to Chattanooga Group for service.
The OptiFlex 3 CPM Therapy Unit is designed with patient safety in mind. An error can be caused by both external and internal disturbances.
Before calling for service, carefully review this operator’s guide. In the event you are still unable to correct the problem, contact your Chattanooga
Group dealer for all repair service. Be certain to specify your serial number and a detailed description of the issue you encountered.