Direct Supply Attendant A5LC-1 User manual

Attendant®
5-LITER OXYGEN
CONCENTRATOR
A5LC-1
Please keep and refer to this Owner’s Manual.
Owner’s Manual
Thank you for purchasing an Attendant®Oxygen Concentrator from Direct Supply
Equipment & Furnishings®. Please read this entire guide carefully and keep it for future
reference. This guide will provide you with instructions, warnings, warranty information
and other important information about your oxygen concentrator. Share this information
with your housekeeping, nursing and maintenance staff to help ensure the oxygen
concentrator is cared for properly.
1-800-634-7328 DirectSupply.com

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Table of Contents
Definitions & Symbols.......................................................................................................... 2
Intended Use for the A5LC-1 ............................................................................................... 3
Contraindications.................................................................................................................. 3
Features of the A5LC-1........................................................................................................ 3
General Safety Information .................................................................................................. 3
Warnings & Cautions......................................................................................................... 4-5
Description of the Concentrator........................................................................................ 6-8
Unpacking the Concentrator................................................................................................. 9
Initial Setup of the Concentrator ........................................................................................ 10
Using the Concentrator ................................................................................................. 11-12
Maintenance.................................................................................................................. 13-14
Troubleshooting.................................................................................................................. 15
Specifications ................................................................................................................ 16-17
Compliance.................................................................................................................... 18-21
Limited Warranty................................................................................................................ 22
Customer Service............................................................................................................... 23
Definitions & Symbols
NOTE: Indicates a helpful tip.
CAUTION: Indicates correct operating or maintenance procedures in order to
prevent damage to or destruction of the equipment or other property
WARNING: Calls attention to a potential danger that requires correct procedures or
practices in order to prevent personal injury.
•:Attention! Read the instructions.
CONCENTRATOR or DEVICE: Your Attendant®5 Liter Oxygen Concentrator.
YOU and YOUR: The facility, community or other entity that has purchased
the product.
WE, US, and OUR: Direct Supply Manufacturing, Inc.
Introduction

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Intended Use for the A5LC-1
The A5LC-1 oxygen concentrator is intended for use by a resident in the home, hospital, or
hospital-like facility as an oxygen supplement device. The concentrator is an electronically
operated device that separates oxygen from ambient air, providing high concentration of
oxygen directly to the resident through a nasal cannula or other method. Clinical studies
have documented that oxygen concentrators are therapeutically equivalent to other types
of oxygen delivery systems.
NOTE: Hospital use typically includes areas such as general care floors, operating rooms,
special procedure areas, and intensive and critical care areas within the hospital. Hospital-
type facilities include physician office-based facilities, sleep labs, Skilled Nursing facilities,
surgical centers and subacute care centers.
Contraindications
No known contraindications.
Features of the A5LC-1
Physical The concentrator is lightweight and compact, measuring 13"W x 10¼"H x 21¼"D
(33 cm x 26 cm x 54 cm) and weighing 33 lbs. (15 kg). The concentrator has a flowrate
knob that allows the resident to adjust the oxygen flow from 0.5 to 5 liters per minute,
and a digital counter that tracks the total hours of use. The concentrator also has an intake
filter and a cabinet filter to prevent dust and particulate from entering the concentrator.
Electrical The concentrator is powered from a 120V AC 60Hz source, and has audible/
visual alarms whenever power is lost, outlet air pressure is below 0.5L/min., or oxygen
purity is low.
General Safety Information
This section contains important safety information related to general use of the A5LC-1.
Other important safety information appears throughout the manual.
Important! Carefully read this manual and all accessory manuals, as well as all
precautionary information and specifications, before using the concentrator.
Important! The concentrator should always be kept in an upright position to prevent
damage during transport.

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Warnings
•WARNING: Read and follow all directions and warnings before use or assembly.
Do not use or assemble if you do not understand the contents of this manual – contact
Direct Supply supply for assistance.Damage, injury or even death may result from
improper use of this product or not following the directions and warnings.This product is
intended for use in normal, indoor conditions. This product may not be appropriate for all
individuals.
•WARNING: Prior to use of this product, the user’s medical professional should be
consulted to ensure that this product is appropriate for the user’s specific needs based
upon his or her overall medical condition and limitations.
•WARNING: This product is not intended to sustain or support life.
•WARNING: Do not use any unauthorized accessories or options with this concentrator.
•WARNING: Thoroughly read the instruction manuals supplied with accessories
and options to ensure correct use. This instruction manual does not carry the caution
selections for such equipment.
•WARNING: Do not open cover or disassemble this concentrator. Doing so could
cause electric shock or fire. It is prohibited by law to modify the concentrator without
authorization.
•WARNING: Do not use power source other than the specified voltage –120V, 60Hz – as
this may cause fire or electric shock. If the power source becomes unstable, discontinue
use until an alternate power source is found.
•WARNING: Pre-use inspection and preventive maintenance must be performed. Do not
perform inspections or preventative maintenance when the concentrator is in use.
•WARNING: Do not run the concentrator for less than 30-minute periods, as this may
reduce the service life of the concentrator.
•WARNING: Do not place anything on top of this concentrator.
•WARNING: Do not block the air openings on the concentrator or place it on a soft
surface like a bed or couch. The concentrator may tip or fall. Keep the air openings free of
lint, hair and similar objects.
•WARNING: Do not use the concentrator in confined areas. Place the concentrator such
that all sides are at least 4" away from walls, draperies, furniture or similar objects.
•WARNING: Do not use the concentrator on deep pile carpets.
•WARNING: Do not use the concentrator near heaters, radiators or hot air registers.
•WARNING: Do not use the concentrator near heat, fire or water sources.
•WARNING: Do not use the concentrator near pollutants or fumes.
•WARNING: Any materials that will burn in air, and some that will not, are easily
ignited and burn rapidly in high concentrations of oxygen. All sources of ignition must
be kept away from the concentrator and preferably outside of the room where the
concentrator is being used. Failure to observe this warning can result in severe fire,
property damage, physical injury or death.
•WARNING: Do not smoke while using the concentrator or in close proximity to the
concentrator. “No Smoking” signs should be prominently displayed in rooms where the
concentrator is used.
Warnings & Cautions

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•WARNING: Spontaneous and violent ignition may occur if oil, grease or greasy
substances come in contact with oxygen under pressure. Such substances must be kept
away from the concentrator, tubing, connections and all other oxygen equipment.
•WARNING: Do not use any lubricants on the concentrator.
•WARNING: If the following occur, turn the power OFF immediately and unplug the
power cord from the wall socket. Continued use in such situations may cause fire or
electric shock.
• There is smoke or a strange odor leaking out of the concentrator.
• The concentrator has been dropped or impacted by an object.
• Liquid or foreign matter has entered the concentrator.
• Concentrator failure has occurred.
Also, if any of the above occurs, promptly do the following:
1. Verify that the power cord has been unplugged from the wall socket.
2. Place an “Out of Order” sign on the concentrator and do not use it.
•WARNING: Do not use the concentrator with multiple residents simultaneously.
•WARNING: Do not connect the concentrator in series or parallel with other
concentrators or oxygen therapy devices.
•WARNING: Avoid using the concentrator while bathing. If continuous usage is required
by a physician’s prescription, the concentrator must be located in another room at least 9
feet from the bath.
•WARNING: Do not come in contact with the concentrator while wet.
•WARNING: Do not place or store the concentrator where it can drop into water or another
liquid.
•WARNING: Do not reach for the concentrator if it has fallen into water. Unplug
immediately
•WARNING: Close supervision is required if the concentrator is used near children or
impaired people
•WARNING: Do not use the concentrator if the power cord or plug is damaged.
•WARNING: Do not drop or insert any objects into any of the openings on the
concentrator.
Cautions
Caution statements identify conditions or practices that could result in damage to the
equipment or other property.
•CAUTION: Federal law restricts this device to sale by or on the order of a physician.
•CAUTION: The monitor may not operate properly if it is operated or stored at conditions
outside of the ranges stated in this manual, or subjected to excessive shock or drops.
•CAUTION: Both the monitor and the instrument connected to it must be connected to
a grounded outlet.
•CAUTION: Do not move or relocate the concentrator by pulling on the power cord.

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Oxygen Concentrator Components
Description of the Concentrator
1 – Flow Meter
Set the flow rate of oxygen by adjusting
the knob.
2 – Status Indicator Light (Alarm/Normal /Low)
3 – Oxygen Tube
4 – Oxygen Outlet
5 – Circuit Breaker
Breaker will cut off power automatically when
current ≥ 5A. After cooling, machine can be
turned back on by pressing the breaker.
6 – Humidifier Bottle Hose
7 – Humidifier Bottle
To minimize respiratory discomfort, use
the humidifier bottle to humidify oxygen.
8 – Power Switch
9 – Elapsed Time Meter
Records the total operation time.
10 – Power Cord
11 – Cabinet Filter






5 LITER OXYGEN
CONCENTRATOR
A5LC-1
Oxygen Flow Rate < 0.5L/min,
or Concentration < 73%
Oxygen Concentration < 85%
Oxygen Concentration ≥ 85%
Figure 1: Oxygen Concentrator Components
5
1
4
6
2
7
3
8
9
10
11

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Figure 2: Humidifier Bottle Components
•WARNING: DO NOT add water over the maximum water level. Pure water shall be
added in humidifier to between maximum and minimum water level in use.
Standard Accessories
Humidifier Bottle Qty. 1
Humidifier Bottle Adapter Assembly Qty. 1
Cannula Qty. 1
If replacement accessories are needed, please contact Direct Supply for a list of
accessories compatible with this concentrator.
Humidifier Safety Valve
Humidifier Cover
Humidifier Bottle
Maximum
Minimum
Humidifier Adapter
Humidifier Outlet
Filter Tube
Filter

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Symbols and Descriptions
Description of the Concentrator (cont.)
Symbol Meaning Symbol Meaning
~Alternating current Refer to instruction manual
Class II
Equipment Type BF applied part
OFF (power) ON (power)
Circuit Breaker
No open flame;
Fire, open ignition
source and smoking prohibited
3Height Do not expose to direct sunlight
SN Serial number Date of
manufacture
Up Manufacturer
Keep dry
+55°C
0°CTemperature limitation
Fragile, handle with care
106kPa
70kPa
Atmospheric pressure limitation
90%
10%
Humidity limitation LOT Lot number

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NOTE: Store concentrator in its packaging until you are ready to use the concentrator.
Unpacking
When unpacking concentrator, check for any obvious damage to the carton or its contents.
If damage to the concentrator is evident, notify Direct Supply.
Remove all loose packing from the carton.
Carefully remove all the components from the carton.
Inspection
Examine exterior of the oxygen concentrator for nicks, dents, scratches or other damages.
Inspect all accessories for damage.
Storage
Store the concentrator in a dry area.
•CAUTION: Do not place anything on top of the concentrator.
Unpacking the Concentrator

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Initial Setup of the Concentrator
Initial setup without humidifier bottle:
1. Remove the cannula from the plastic packaging
2. Connect the cannula to the oxygen outlet on the concentrator
3. Plug the concentrator into a 120V AC power source
4. Turn the concentrator on by pressing the power switch (“|” indicates the power is on,
“” indicates the power is off).
Optional initial setup with humidifier bottle:
1. Remove humidifier bottle from plastic packaging
2. Unscrew the cover of the humidifier bottle
3. Add purified or distilled water to the bottle. Ensure that the water levels fall between
the MINIMUM and MAXIMUM indicators on the side of the bottle
4. Screw the cover onto the humidifier bottle
5. Insert the humidifier bottle into the elastic strap on the front of the concentrator
6. Remove the cannula from the plastic packaging
7. Connect the cannula to the humidifier bottle outlet
8. Connect the oxygen hose between the oxygen outlet on the concentrator and the
humidifier adapter on the humidifier bottle
9. Plug the concentrator into a 120V AC power source
10. Turn the concentrator on by pressing the power switch (I indicates the power is on,
O indicates the power is off).

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Inspect the concentrator for damage prior to each use. If damage is observed or
functionality is in question, DO NOT use and contact Direct Supply for assistance.
Turn the concentrator on by pressing the power switch so the “I” symbol is pressed
in. The compressor will start, and the green, yellow, and red LEDs on the front of the
concentrator will first turn on in sequence, then turn off. This sequence will repeat for
approximately 40 seconds, or until the oxygen purity reaches 85%. When this occurs,
the green LED will stay lit. It may take up to 30 minutes for the oxygen purity to reach its
maximum level, but once the green LED stays on, the concentrator is ready to use.
To set the flow rate to the prescribed oxygen level, adjust the flow meter knob until the
ball floats at the appropriate flow line on the flow meter. Turning the flow meter knob
clockwise reduces the flow, and counter-clockwise increases the flow.
When you are done using the concentrator, turn it off by pressing the power switch so the
“” symbol is pressed in.
Using the Concentrator
Flowmeter knob
Ball
•CAUTION: If the oxygen flow ever falls below 0.5 liters/minute, check the tubing for
kinks or blockage, and verify that there is no damage to the humidifier bottle.
Alarm LEDs
Green LED: O2concentration is greater than 85%±2%
Yellow LED: O2concentration is between 73% and 85% ±2%
Red LED: O2concentration is less than 73%±2%, or oxygen flow rate is less than 0.5
liters/minute
Figure 3
Flowmeter

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Testing the Safety Features of the Concentrator:
Pressure Safety Valve Testing
With the concentrator running, plug the oxygen outlet with your finger and verify that
the pressure safety valve opens after 5 seconds, gas is released, and the pressure
valve closes.
Loss of Power Alarm Testing
With the concentrator running, unplug the power cord from the 120V AC power source.
Verify that the Loss of Power Alarm chirps once every 6 seconds.
Low Oxygen Flow Alarm Testing
With the concentrator running, adjust the flow meter all the way down. Verify that the Low
Oxygen Flow Alarm sounds continuously and the red LED on the concentrator illuminates
until the flow is adjusted back over 0.5 liters/minute.
Using the Concentrator (cont.)

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•WARNING: Power off and unplug the concentrator prior to performing preventive
maintenance.
•WARNING: Do not perform preventive maintenance while the resident is using the
concentrator.
If used in a clean environment, the concentrator typically requires no filter cleaning or
changes for one year.More frequent cleaning and filter changes may be required if:
• You are operating the concentrator in a dusty environment
• You are operating the concentrator continuously
• Your facility policy requires more frequent maintenance
Cleaning the Cabinet
Turn off the power switch and unplug the concentrator from the 120V AC power source
Using a soft dry cloth, a damp sponge or alcohol-based wipes, clean only the outside of
the concentrator. Do not use acetone, solvents or any other inflammable products. Do not
allow any liquids to enter the cabinet.
Cleaning the Cabinet Filter
• Remove the locking screw and the access door on the left side of
the concentrator
• Remove the cabinet filter from the access door
• Wash the cabinet filter with water, and allow to completely dry
• Replace the cabinet filter in the access door
• Reattach the access door
• Replace the access door screw
Replacing the Intake Filter
• Remove the access door on the left side of the concentrator
• Remove the intake filter by sliding two fingers under the filter and lifting while twisting
the filter back and forth
• Install a new filter by inserting the plastic tube on the filter into the rubber fitting. Press
down and twist the filter back and forth until the filter is fully seated.
• Replace the access door
•WARNING: DO NOT operate the concentrator without the filters installed, or if the
filters are wet. Doing so could permanently damage the concentrator.
MaintenanceUsing the Concentrator (cont.)
Cabinet
Filter
Figure 4

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Maintenance (cont.)
Cleaning the Optional Humidifier Bottle
Replace the water in the humidifier bottle every day.
Clean the humidifier bottle weekly.
• Wash with a mild detergent
• Rinse with water
• Completely dry before returning to service
Disinfecting the Optional Humidifier Bottle
• Unscrew the top of the humidifier bottle
• Remove the tube and filter
• Immerse the bottle and tube in a disinfecting solution
• Rinse the bottle and tube completely with water
• Allow bottle and tube to completely dry before reassembling and returning to service
It is recommended to replace the humidifier bottle tube once a year.
Oxygen Nasal Cannula
• Follow the nasal cannula manufacturer’s instructions.

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Symptom Probable cause Solution
Green and yellow status
lights are lit, oxygen
concentrator stops
running, continuous
buzzer sounding.
1. Valve plug is not properly
connected Stop using the concentrator immediately and contact
Direct Supply for repairs.
2. Exhaust sound buffer box
jammed.
3. Can’t open the valve.
4. Failure of the main electronic
control circuit board.
The nasal cannula has
condensation or water
droplets in it.
1. Concentrator is overheating
due to placement in the room. 1. Make sure the machine is at least 4" (10 cm) away
from the walls, draperies,
furniture or similar objects
2. Fan inside the concentrator is
not running or running too slow 2a. Contact Direct Supply for service
2b. Replace it.
3. Humidifier bottle water is too
warm. 3. Add cold water to the humidifier bottle.
4. Too much water in the
humidifier bottle. 4. Remove water from the humidifier bottle until
the level is between the
maximum and minimum
indicators.
Concentrator works, but
yellow light illuminates. 1. Concentrator oxygen purity between 75% and 85% 1. Clean or replace filters.
2. Unit overheating due to
blocked air intake. 2. Move concentrator at least 4" (10 cm) away from
walls, draperies, furniture
or similar objects.
3. If condition persists, contact Direct Supply for service.
Concentrator stops
working, red status
light illuminates,
audible alarm sounds
continuously.
1. Low pressure alarm. 1. Clean or replace filters.
2. If condition persists, stop using the concentrator immediately
and contact Direct Supply for service.
Concentrator stops
working, red status
light illuminates, audible
alarm sounds.
High pressure alarm. Stop using the concentrator
immediately and contact
Direct Supply for service.
Concentrator stops
working, audible alarm
sounds continuously.
Compressor open circuit alarm. Stop using the concentrator
immediately and contact
Direct Supply for service.
Concentrator stops
working, continuous
audible alarm sounds.
Compressor short circuit alarm. Stop using the concentrator
immediately and contact
Direct Supply for service.
TroubleshootingMaintenance (cont.)

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1 Power supply: AC120V, 60Hz; Current: 3.5A; Power: 390VA
2 Sound level: ≤ 50dB (A)
3 Maximum recommended flow: 5L/min
4 Flow Range at Outlet Pressure of zero: 0.5 - 5L/min
Flow Range at Outlet Pressure of 7 kPa: 0.5 - 5L/min
Change in maximum recommended flow when back pressure of 7 kPa is applied:
< 0.5 L/min
5 Oxygen Concentration: When 0.5 - 5L/min ,93% ± 3% (after running for 30 minutes)
6 Output Pressure: 38kPa ± 5kPa ;
7 Release Pressure by machine operation: 250kPa ± 50kPa;
8 Weight: 33 lbs. (15kg)
9 Dimensions: 13" x 10¼" x 21¼" (33 cm x 26 cm x 54 cm)
10 Altitude: The oxygen concentration will operate at altitudes of up to 6000’ (1828 m)
with no degradation in purity. Between altitudes of 6000 - 13,100’ (1828 - 4000 m); the
oxygen purity will decrease to less than 90%.
11 Safety Systems:
• Current overload or line surge shutdown.
• High temperature compressor shutdown.
• High pressure alarm shutdown.
• Low pressure alarm shutdown.
• Low Oxygen Concentration alarm.
12 Minimum Recommended Operating Time: 30 minutes
13 Electric Classification:
Class II equipment, Type BF applied part (Nasal oxygen cannula);
14 Mode of operation: Continuous duty
15 Operating Conditions:
Overvoltage category: II Pollution degree: 2, Altitude: ≤2000
• Temperature range: 41°F - 104°F (5°C - 40°C)
• Relative humidity: ≤80%
• Atmospheric pressure: 12.47psi - 15.37psi (86kPa - 106kPa)
NOTE: When the storage temperature is lower than 41°F, the equipment must be
returned to an environment where the temperature is above 41°F for a minimum of 4
hours before operating.
NOTE: The life of the concentrator will be affected and the efficiency lowered if
operated outside of these limits.
Specifications

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Specifications
16 Oxygen Output Temperature: Less than ambient temperature +11°F (6°C)
17 Cannula/Oxygen Tubing: To prevent folding or kinking of oxygen hose, do not use
cannula longer than 6' (2m) or oxygen hose longer than 50' (15.2m) (non-flattening).
18 Storage and Transport Conditions:
• Temperature Range: 32°F - 131°F (0°C - 55°C)
• Relative Humidity Range: 10% - 90%
• Atmospheric pressure: 10.2psi - 15.37psi (70kPa - 106kPa)
NOTE: The oxygen concentrator should be stored in area without corrosive gas;
NOTE: Do not shake the concentrator during transportation.
NOTE: Only transport the concentrator in an upright position.

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Compliance
Guidance and declaration of manufacturer -
Electromagnetic Emission
The A5LC-1 Oxygen Concentrator is intended for use in the environment specified
below. The purchaser of the A5LC-1 Oxygen Concentrator should ensure that the unit is
used in such an environment.
Emission test Compliance Electromagnetic Environment Regulations
RF emissions CISPR 11 Group 1 The A5LC-1 Oxygen Concentrator uses
RF energy solely for its internal function.
Therefore, its RF emissions are very low and
are not likely to cause any interference in
nearby electronic equipment.
RF emissions CISPR 11 Class B The A5LC-1 Oxygen Concentrator is suitable
for use in all establishments, including
domestic and those directly connected to the
public low-voltage power supply networks that
supply buildings used for domestic purposes.
Emission of harmonics
IEC 61000-3-2
Class A
Voltage fluctuations /
flicker emissions IEC
61000-3-3
Complies

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Guidance and declaration of manufacturer -
Electromagnetic Immunity
The A5LC-1Oxygen Concentrator is intended for use in the electromagnetic environment specified
below. The purchaser of the A5LC-1Oxygen Concentrator should ensure that the unit is used in such
an environment.
Immunity IEC 61000-4-2 Test
Level
Compliance Level Electromagnetic Environment
Guidance
Electrostatic
discharge (ESD)
IEC 61000-4-2
±6 kV contact discharge
±8 kV Air discharge
±6 kV contact
discharge
±8 kV Air
discharge
Floors should be wood or
concrete or ceramic tile. If floors
are covered with synthetic
materials, the relative humidity
must be at least 30%.
Electrical fast
transient/bursts
IEC 61000-4-4
±2 kV for power supply
lines
±1 kV for input/output
leads
±2 kV for power
supply lines
Mains power quality should be
that of a typical commercial or
hospital environment.
Surge
IEC 61000-4-5
±1 kV differential mode
±2 kV common mode
±1 kV differential
mode
±2 kV common
mode ll
Mains power quality should be
that of a typical commercial or
hospital environment.
Voltage
dips, short
interruptions
and Voltage
variations on
power supply
input lines
IEC 61000-4-11
< 5% UT
(>95% dip in UT) for
0.5 cycle
< 5% UT
(>95% dip in UT)
for 0.5 cycle
Mains power quality should be
that of a typical commercial
or hospital environment. If the
user of the A5LC-1Oxygen
Concentrator requires continued
operation during power mains
interruptions, it is recommended
that the A5LC-1Oxygen
Concentrator be powered from
an interruptible power supply or
a battery
40% UT
(60% dip in UT) for 5
cycle
40% UT
(60% dip in UT)
for 5 cycle
70% UT
(30% dip in UT) for 25
cycle
70% UT
(30% dip in UT)
for 25 cycle
<5% UT
(95% dip in UT) for 5
sec
<5% UT
(95% dip in UT)
for 5 sec
Power
frequency (50
Hz) magnetic
IEC 61000-4-8
3 A/m Due to the EUT
contains no
components
susceptible to
magnetic field,
it is deemed
to fulfill the
relevant immunity
requirement
without testing.
Power frequency magnetic fields
should be at levels characteristic
of a typical location in a
typical commercial or hospital
environment.
NOTE: UT is the a.c. mains voltage prior to application of the test level.
Compliance

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Compliance (cont.)
Guidance and declaration of manufacturer -
Electromagnetic Immunity
The A5LC-1 Oxygen Concentrator is intended for use in the electromagnetic environment specified
below. The purchaser of the A5LC-1 Oxygen Concentrator should ensure that the unit is used in such
an environment.
Immunity EC61000-4-2
Test Level
Compliance
Level
Electromagnetic Environment Guidance
Directed HF
interference acc.
to IEC 61000-4-6
Radiated RF IEC
61000-4-6
3 Vrms
150 kHz to
80 MHz
3 V/m
80 kHz to
2.5 GHz
3 V
3 V/m
Portable and mobile RF communications
equipment should be used no closer to any part
of the JMC5A Ni Oxygen Concentrator, including
cables than the recommended separation distance
calculated from the equation applicable to the
frequency of the transmitter.
Recommended separation distance:
d= 1.2 √P
d= 1.2 √P 80 MHz to 800 MHz
d= 2.3 √P 800 MHz to 2.5GHz
Where P is the maximum output power rating
of the transmitter in Watt (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 surveya
should be less than the compliance level in each
frequency range.bInterference may occur in the
vicinity of equipment marked with the following
symbol:
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects and people.
a Field strengths from fixed transmitters, such as base stations of radio (cellular/cordless) telephones
and land mobile radios, amateur radio, AM and FM radio broadcast and television 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 the A5LC-1 Oxygen Concentrator is used exceeds the applicable
RF compliance level above, the A5LC-1 Oxygen Concentrator should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be necessary, such as
reorienting or relocating the A5LC-1 Oxygen Concentrator.
b Over the frequency range from 150 kHz to 80 MHz, the field strengths should be less than 3 V/m.