Richmar REX User manual

Combo Pneumatic
Compression System
USER MANUAL
3507.22.01.A

Table of Contents
1. INTRODUCTION ................................................................................................................................................. 1
2. IMPORTANT SAFETY INFORMATION SYMBOL DEFINITIONS ....................................................... 2
3. BASIC SAFETY PRECAUTIONS ................................................................................................................... 3
4. GENERAL SPECIFICATIONS .........................................................................................................................
5
5. INDICATIONS FOR USE .................................................................................................................................. 5
6. CONTRAINDICATIONS .................................................................................................................................... 5
7. SYSTEM AND COMPONENTS ...................................................................................................................... 6
8. OPERATING INSTRUCTIONS ........................................................................................................................ 7
9. MAINTENANCE AND STORAGE ..................................................................................................................
10
10. DEVICE STORAGE ............................................................................................................................................ 11
11. TROUBLESHOOTING ...................................................................................................................................... 11
12. ELECTRICAL SPECIFICATIONS/EQUIPMENT CLASSIFICATION ................................................... 12
13. WARRANTY INFORMATION .........................................................................................................................
15

1
1. INTRODUCTION
Thank you for purchasing The REX Combo Pneumatic Compression System
(Models: DVTREX-L or DVTREX-U) and garments.
The durable, high quality material used in the manufacturing of these products will ensure that
you experience long-lasting and uninterrupted performance.
The REX Recovery Exercise X-trainer has a pump and dual lower extremity garments with air cells.
The patient puts the garments on, the pump inflates the air cells to compress muscles, promote
venous blood return and to help prevent deep venous thrombosis.
Should any problems occur, please contact the dealer where your REX System was purchased
or call Tech Support at 800-376-7263. Copyright 2022, Rev A.
Manufactured for:
Richmar, A Compass Health Brands Company
6753 Engle Road
Middleburg Heights, OH 44130
Ph: 800-376-7263
www.richmarweb.com

2
2. IMPORTANT SAFETY INFORMATION SYMBOL DEFINITIONS
Refer to Documentation before using
Separate collection for waste electrical and
electronic equipment. Please dispose of the
device/accessory/packing in accordance
with the legal obligation in your area
Device is protected against the ingress of vertically
dripping water and the hazardous parts are
protected against access to objects equal to or
larger than 12.5mm (1/2").
Wash by hand
maximum temperature 104°F (40°C)
On back of device and instruction manual
On back of device
On back of device
On back of device
On garments
On back of device
The Pump is Class II Protection
The garments is Type BF-Applied part
The manufacturer’s batch code
On back of deviceThe manufacturer’s serial number
Do not bleach
Do not iron
Drip line drying in the shade
Do not dry clean
Do not tumble dry
On the care labeling code of the garment
On the care labeling code of the garment
On the care labeling code of the garment
On the care labeling code of the garment
On the care labeling code of the garment
On the care labeling code of the garment
Symbol Explanation Location

3
3. BASIC SAFETY PRECAUTIONS
WARNINGS:
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.
Read instruction manual before operating. Be sure to comply with all "Contraindications, Warnings,
Cautions and Adverse Reactions" in the manual. Failure to follow may cause harm to user or device
and/or may void the warranty.
• If device was not ordered by or recommended by a physician, the pressure should not be set any
higher than 120mmHg. High pressure should be set with caution on patients with peripheral
arterial occlusive disease.
• Caution must be raised for patients with insensitive, irritated, sunburned, bruised or broken skin,
or with skin conditions such as skin cancer, dermatitis, eczema, or psoriasis in or around treat-
ment sites. Should changes in skin appearance occur such as blisters, redness, discoloration,
welts or other noticeable changes in the skin, or if burning, itching, increased swelling should
occur, discontinue use and consult with a physician.
• Discontinue use immediately in the event of increased pain, numbness or tingling and contact
a physician.
When using an electrical appliance, basic safety precautions should always be followed.
• In the event of a power failure, disconnect the garment from the pump to release any residual air
and pressure in the garment.
• Use this product only for its intended use as described in this manual
• DO NOT use if damaged or defective – if device has a damaged electrical cord or plug, has been
dropped or damaged in any manner, dropped into water, or if the product shows any signs
of deterioration.
• DO NOT place near a heat source or water.
• DO NOT carry this device by the power cord or use the cord as a handle.
• Keep this device out of reach of children or pets.
• DO NOT take the pump, garment or tubing apart.
• Use only accessories that are recommended by the manufacturer.
• NEVER use pins or other metallic fasteners with this product.
• DO NOT place the device on a soft surface such as a pillow or mattress, under a blanket or other
covering, as this could overheat the system and cause it to malfunction.

4
CAUTION:
• If equipment no longer works or is damaged and needs to be disposed of, please comply with
your local disposal laws of electronic equipment.
• Please consult a physician before using this device, if:
°You are pregnant or feel weak
°You have an implant at the site of application
° You have a cardiac pacemaker
• DO NOT bend or fold the hose.
• DO NOT store the garments near needles, scissors or other sharp object as they may damage
the garments.
• To avoid damage and risk of electric shock, DO NOT use the system near water and NEVER spill
any kind of liquid on the system. Should this occur, turn device o and disconnect immediately
and contact your dealer or the manufacturer.
• Keep any open ports, connection points & power inlet free of debris.
• DO NOT puncture or otherwise damage the attachments, as this may cause the system to
operate incorrectly and will void the warranty.
• DO NOT hold the unit or attachments by the tubing.
• DO NOT wrap the tubing around the garments, as it could cause damage to the tubes, not
covered by the warranty.
DANGER:
WARNINGS:
• Only use the power supply provided with the system.
• To avoid risk of strangulation, DO NOT leave a baby or child unattended with or near the power
supply or tubing.
• The attachments are designed for single person use only.
• No modification of this equipment is allowed. DO NOT attempt to take apart the system.
If problems occur or parts replacement are needed, please contact your dealer or contact
tech support @ 800-376-7263.
• DO NOT use in the presence of flammable anesthetics.
• Slip and fall hazard. DO NOT stand or walk while wearing garments.
• DO NOT use the compressor to direct pressurized air towards your eyes, nose, mouth or ears.
Doing so may lead to serious injury.
• DO NOT use where aerosols (spray) being used or where oxygen is being administered.
• DO NOT store the garments near a stove, cigarette or other heat generating devices as this is
a fire hazard.

The REX Recovery Exercise X-trainer is intended to temporarily relieve minor muscle aches
and/or pains, and to temporarily increase circulation to the treated areas.
4. GENERAL SPECIFICATIONS
5.
INDICATIONS FOR USE
6. CONTRAINDICATIONS
The REX Recovery Exercise X-trainer includes the main pump, dual lower extremity garments
and backpack.
GARMENT
Garment size (customer size is available):
MAIN MACHINE
* Power supply cord and cable can be only replaceable by service personnel.
DIMENSIONS:
WEIGHT:
Power:
Power Plug:
Power Cable:
Garment Material:
Therapy Time:
Min/Max Pressure:
Number of Chambers per Garment:
Cycle Time:
285mm H x 175mm W x 130mm D
2.6 Kg
110-125Vac 60Hz 50VA
JL-201 AC125V 10A 2-pole without earthling contact.
NISPT-1 2*0.824mm
Thermoplastic Urethane
0-30 mins
20-200mm Hg
4
70s
REF
DVTREX-LE-L
DVTREX-LE-U
Length
(inch/cm)
44/110
44/110
Width
(inch/cm)
14/35
16/40
• DO NOT use this product if you are experiencing inflammation, an infection, pain of unknown
origin, or bleeding (internal or external) at or near the site of application or if you have a wound
at or near the site of application.
• DO NOT use-this product if you have any of the following conditions:
°Acute pulmonary edema
°Acute thrombophlebitis
° Acute congenerative cardiac failure
° Acute infections
° Patients with documented deep vein thrombosis
° Episodes of Pulmonary embolism
° Wounds lesions or tumors at or in the vicinity of application
° Where increased venous and lymphatic return is undesirable
° Bone fractures or dislocations at or in the vicinity of application
5

CONTROLS & DISPLAY
7. SYSTEM AND COMPONENTS
Pneumatic Compression Pump
Garments for Leg Use
Position Setting
Mode Setting
Power On/O
Timer
Setting
Pressure Setting Start/Pause
6

When removing the garments from the packaging, avoid using sharp objects that could puncture
or tear the garment.
CONNECT WITH PUMP
8. OPERATING INSTRUCTIONS
WARNING
7
1.
Plug the pump into an outlet close to where the treatment will be administered.
2. Put the Garments on each leg and pull up the zipper.
NOTE: Lower Extremity Garments inflate/deflate simultaneously and tubing is already attached
to the garments. Must put both garments on to work properly.
3. Connect the other end of the tubing to the side of the pump as indicated above. To remove the
tubing from the pump, press the quick disconnect thumb tab on the connect and gently pull.
4. Turn the pump on by pressing the power on/o button. The front panel will light up.

Mode A Loop:
Channels Time
10S 5S 5S 5S 5S 5S 10S 10S
• •
• • •
• • •
• •
1
2
3
4
Mode B Loop:
•Inflate
Deflate
5. There are two pumping modes to choose from. Please see the below pictures for the correct
therapeutic Mode A or B.
6. Set the timer by choosing between 10, 20 or 30 mins. When the timer is done, the device will
automatically stop and go into standby mode.
NOTE: Recommended treatment time is 30 mins per day unless otherwise specified by
a physician.
8
-> -> -> ->
-> -> -> ->
Channels Time
10S 10S 10S 10S 5S 8S
• • • •
• • • •
1
2
• • •
• •
3
4
The Grey color represents the way each chamber is being inflated.
A cycle of about 70 seconds.

7. Set the pressure setting based on physician recommendation. If no parameters are given by a
physician, it is recommended to start with the minimum pressure and gradually increase.
Pressure should not be uncomfortable or cause pain.
The pressure setting ranges from 20 to 200mm Hg (+/-20mm Hg).
The max pressure of the pump core is 230 to 260mmHg.
The max flow of the pump core is 16L-18L/min
8. Position Setting
Press corresponding number shown below based on how many chambers you want to inflate.
9. Start / Pause
Press the start button when you are ready for the pump to start. Press again if you want to
pause the pump.
10. Turn Device O
Press the on/o button once treatment is complete. It is recommended to unplug the pump if
device will not be used for extended periods of time.
9

10
WARNING
DO NOT try to service or maintain the device while in use.
WARNING
Only an authorized technician may open the pump.
Before cleaning, unplug power cord from electrical outlet.
DO NOT allow liquids to enter the pump, as this can present an electrical hazard.
ALWAYS allow the pump to dry before using.
DO NOT use bleach on the pump.
WARNING
NEVER allow the Connectors to be submerged into the water. If water enters the inside of the
garment, damage may occur to the device.
WARNING
DO NOT place garment in washing machine.
WARNING
DO NOT use the tubing or valves as “handles” for carrying, handing or storing garment.
9. MAINTENANCE AND STORAGE
Exterior Pump Case Cleaning Instructions:
Clean the exterior case and tubing with a damp (not wet) cloth using mild soap and water solution
once per month as needed.
Garment Cleaning/Disinfecting Instructions:
1. Disconnect garment from device. Open garment to expose all sides either by separating Velcro
type hook and loop or by unzipping (depending on type of garment).
2. Cleaning solution should consist of 10mL of laundry detergent per 5L of warm tap water. Use either
a large sink or plastic tub able to hold enough solution (depending on size and quantity of garments)
to completely submerge the garment leaving the latch connector bars out of the water.
3. Garment should be soaked for 5-10 minutes.
4. Thoroughly rinse garment with warm tap water and allow to air dry.
Hard to remove soil on surface of garment may require additional washing by hand with a clean towel
while submerged. Avoid using any abrasive materials such as scrubbing pads or chemicals that could
cause damage to the exterior surface of garment.

11
SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION
The pump will not
turn on.
Check the electrical wall outlet to be sure that the
pump is plugged into the outlet correctly. Check the
circuit breaker to be sure there is power to the outlet.
Unplug the power cord and look for any damage
or defects.
Check the garment for adequate connection to the
device, leaks, kinks, punctures, twists and/or folds.
One garment inflates
but the second one
does not.
No electricity
Damaged garment
An internal problem
Defective garment
Damaged power
cord
Device is on an uneven
or unstable surface
Tubing not
connected or
blocked
Check the garment tubing to be sure they are connected
to the pump and to the garment properly. Check the
tubing for kinks, punctures, twists and/or folds.
Check the garment for damage and leaks.
Contact Tech Support for additional help.
An internal problem Contact Tech Support for additional help.
Regardless of the pressure
setting, the garments
are applying very
low pressure.
The device is making
strange and/or loud
noises.
Move to a more stable and even surface.
10. DEVICE STORAGE
The device should be stored in a clean, dry area between 59 to 77°F (15 to 25°C). However, short-term
exposure to temperatures -4 to 111°F (-20 to +44°C) will not harm the unit. To maximize the pump’s life,
time should be allowed for the pump to adjust to room temperature when it has been exposed to
extreme temperatures.
11. TROUBLESHOOTING
If the corrective action does not solve the problem, then call your distributor or Tech Support
at 800-376-7263.
NOTE: In addition to possessing proper tools and testing equipment, authorized service personnel have
access to all electrical schematics, calibration instrumentation and criteria and an inventory of authorized
replacement parts. Only authorized personnel can repair device. Please contact your distributor or
Tech Support for any repairs.
For transport and storage:
Ambient temperature: -4°F to +131°F
(-20°C to +55°C)
Relative humidity: 10% -90%RH
Atmospheric pressure: 80KPa to 106KPa
For operation:
Ambient temperature: +41°F to +95°F
(+5°C to +35°C)
Relative humidity: 15% - 85%
Atmospheric pressure: 86KPa to 106KPa
Constructed of ABS/PA-765
UL FLAME RATING: V-0
PUMP ENCLOSURE
ENVIRONMENTAL SPECIFICATIONS

12
EMC Manufacturer’s Declaration
Device electromagnetic emissions—manufacturer’s declaration
The device is intended for use in the electromagnetic environment specified below. The customer or the user of this device should
assure that it is used in such an environment.
The device is intended for use in the electromagnetic environment specified below. The customer or the user of this device should
assure that it is used in such an environment.
Emissions test Compliance Electromagnetic environment— guidance
RF emissions
CISPR 11
This device uses RF energy only for its internal functions. Therefore, its RF emissions are
very low and are not likely to cause any interference in nearby electronic equipment.
This device is suitable for use in domestic establishment and in establishment directly
connected to low voltage power supply network which supplies building used for
domestic purposes.
RF emissions
CISPR 11
Class B
Group 1
Harmonic emissions
IEC 61000-3-2
Not applicable
Voltage fluctuations
/ flicker emissions
IEC 61000-3-3
Not applicable
Guidance and manufacturer’s declaration—electromagnetic immunity
Immunity test IEC 60601 test level Compliance level Electromagnetic environment—guidance
Electrostatic
discharge (ESD)
IEC 61000-4-2
±8kV contact
±2kV, ±4kV, ± 8kV, ±15kV air
±8kV contact
±2kV, ±4kV, ± 8kV, ±15kV air
Floors should be wood, concrete or ceramic tile.
If floors are covered with synthetic material,
the relative humidity should be at least 30%.
Mains power quality should be that of a typical
commercial or hospital environment.
Mains power quality should be that of a typical
commercial or hospital environment.
Mains power quality should be that of a typical
commercial or hospital environment. If the user
Electrostatic fast
transient / burst
IEC 61000-4-4
± 2 kV for power supply lines ± 2 kV for power
supply lines
± 1 kV for input / output lines
Surge
IEC 61000-4-5
±1 kV line to line ±1 kV line to line
± 2 kV line to earth
Voltage dips, short
interruptions and
<5 % U (>95% dip in U)
for 0.5 cycles
<5 % U (>95% dip in U)
for 0.5 cycles
12. ELECTRICAL SPECIFICATIONS/EQUIPMENT CLASSIFICATION
The device’s interior components are “double insulated” and do not require a “protective ground.”
The device is equipped with an 18 gauge, 2-wire, 6.5ft. Power cord, secured through the pump casing
with a Heyco strain relief brushing as well as an additional “hold-down” clamp for added safety.
1. Class of protection against electrical shock: CLASS II EQUIPMENT
2. The degree of protection against electric shock: APPLIED PART-TYPE BF
3. Mode: Regular continuous work
4. According degree of protection against ingress of water: IP21
5. The current software revision Version 1.5

13
voltage variations
on power supply
input lines
IEC 61000-4-11
Power frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8
NOTE: Uis the AC mains voltage prior to application of the test level.
Immunity test IEC 60601 test
level
Compliance level Electromagnetic environment—guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms
15 kHz to 80 MHz
6 Vrms in ISM and
amateur radio bands
3 V/m
80 MHz to 2.5 GHz
10V/m
80MHz to 2.7Ghz
385MHz-5785MHz
Test specifications
for ENCLOSURE
PORT
IMMUNITY to RF
wireless
communication
equipment (Refer
to table 9 of IEC
60601-1-2:2014)
3 Vrms
15 kHz to 80 MHz
6 Vrms in ISM and
amateur radio bands
3 V/m
80 MHz to 2.5 GHz
10V/m
80MHz to 2.7Ghz
385MHz-5785MHz
Test specifications
for ENCLOSURE
PORT
IMMUNITY to RF
wireless
communication
equipment (Refer
to table 9 of IEC
60601-1-2:2014)
Portable and mobile RF communications equipment should be used
no closer to any part of this device including cables, than the
recommended separation distance calculated from the equation
applicable to the frequency of the transmitter.
Recommended separation distance
aField strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios,
amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess the
electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured
field strength in the location in which this device is used exceeds the applicable RF compliance level above, this device
should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary,
such as re-orienting or relocating the device.
Where P is the maximum output power rating of the transmitter in
watts (W) according to the transmitter manufacturer and d is the
recommended separation distance in meters (m). Field strengths from
fixed RF transmitters, as determined by an electromagnetic site survey,a
should be less than the compliance level in each frequency range.b
Interference may occur in the vicinity of equipment marked with the
following symbol:
d = [3,5/V]xP½
d = 1.2xP½80MHz to 800MHz
d = 2.3xP½
800MHz to 2.7GHz
Note 1: At 80 MHz and 800 MHz, the higher frequency range applies.
Note 2: These guidelines may not apply to all situations. Electromagnetic propagations is aected by absorption and reflections
from structures, objects and people.
<5 % U (>95% dip in U)
)
for 1 cycles
<5 % U (>95% dip in U)
for 5/6 sec
70% U (30%dip in U
for 25/30 cycles
<5 % U (>95% dip in U)
)
for 1 cycles
<5 % U (>95% dip in U)
for 5/6 sec
70% U (30%dip in U
for 25/30 cycles
of the device requires continued operation
during power mains interruptions, it is
recommended that this device be powered
from an uninterruptible power supply or
a battery.
Power frequency magnetic fields should be at
levels characteristic of a typical location in
typical commercial or hospital environment.
3 A/m, 30A/m 3 A/m, 30A/m
Guidance and manufacturer’s declaration—electromagnetic immunity
The device is intended for use in the electromagnetic environment specified below. The customer or the user of this device should
assure that it is used in such an environment.

14
bOver the frequency range 150 kHZ to 80 MHz, field strengths should be less than 3 V/m.
Recommended separation distances between portable and
mobile RF communications equipment and this device
Rated maximum output power
of transmitter
W
Separation distance according to frequency of transmitter
m
150 kHz to 80 MHz
d = 1.2xP½
80 MHz to 800 MHz
d = 1.2xP½
800 MHz to 2.5 GHz
d = 2.3xP½
This device is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer
or user of this device can help prevent electromagnetic interference by maintaining a minimum distance between portable and
mobile RF communications equipment (transmitters) and the device as recommended below, according to the maximum output
power of the communications equipment.
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m) can be
estimated using the equation applicable to the frequency of the transmitter, where p is the maximum output power rating of the
transmitter in watts (W) according to the transmitter manufacturer.
Note 1: At 80 MHz, the separation distance for the higher frequency range applies.
Note 2: These guidelines may not apply in all situations. Electromagnetic propagation is aected by absorption and reflection from
structures, objects and people.
0,01
0,1
1
10
100
0.12
0.38
1.2
3.8
12
0.12
0.38
1.2
3.8
12
0.23
0.73
2.3
7.3
23

15
13.WARRANTY INFORMATION
Please contact your dealer in case of a claim under the warranty. If you have to send the unit back
to your provider, enclose a copy of your receipt and state what the defect is.
The following warranty terms apply:
1. The warranty period for device is one year from date of purchase (accessories have a six
month warranty). In case of a warranty claim, the date of purchase has to be proven by
means of the sales receipt or invoice.
2. Repairs under warranty DO NOT extend the warranty period either for the device or for the
replacement parts.
3. The following is excluded under the warranty:
All damage which has arisen due to improper treatment, e.g. non-observance of the
user instruction.
All damage which is due to repairs or tampering by the customer or unauthorized
third parties.
Damage which has arisen during transport from the manufacturer to the consumer or
during transport to the retailer.
Accessories which are subject to normal wear and tear.
Liability for direct or indirect consequential losses caused by the unit is excluded even if the damage to
the unit is accepted as a warranty claim. All products must be returned in original packaging and must
contain all components, accessories and user manuals. If any components are missing, you will be
responsible for the cost of the replacement component and the 25% restocking fee.
All returns must be approved with a Return Authorization Number. Please call our Customer Service
Team at [phone] to obtain a Return Authorization Number. Provide the following information
when calling:
• Item Number
• Original Order Number
• Product Serial Number/Lot Number
• Reason for Return
The Return Authorization Number must be marked clearly on the returned carton and is valid for
10 business days from the date of issue.
Returns will not be accepted on items that are:
• Missing their serial number
• Special order items
• Returned more than 30 days after delivery
• Returned without notification