Hoffrichter Trend 300 User Manual

USER`S MANUAL

TREND 300

TREND 300

Serial Number

Each HOFFRICHTER device is provided with a serial num­ber which guarantees the product can be traced back.
The serial number is on the type identification plate to
be found on the reverse of the device.

In case of any query or complaint, please always state
the serial number.

Conformity

The device complies with the
requirements of the directives
93/42/CEE.

2

Respiration Therapy Device TREND 300

0123

3

Respiration Therapy Device TREND 300

Legend of Symbols 04

Safety Instructions 05

Intended Use 08

Technology of TREND 300 09

Hints to be observed before starting 10

Description of the Device 11

Proper Use of the Device 14

Use of Oxygen 16

Cleaning Instruction, Changing of Filter 17

Alarm Functions of TREND 300 18

Functions of TREND 300 19

Trouble Shooting 23

Display Indications 26

Inspection and Check 27

Approved Accessories 28

Technical Data 29

TREND 300 - Patient Pass 30

Contents

Information on the Type Identification Plate:

Pay attention to user´s manual

Applied part type BF

Protection class II (insulation - enclosed)

CE - Conformity Statement

Do not dispose of the device with normal
domestic waste.
For information on the proper disposal of the
device, pleasa contact your responsible
customer service.

4

Respiration Therapy Device TREND 300

Legend of Symbols

5

Respiration Therapy Device TREND 300

Safety Instructions

Before first use of your CPAP-device, please read this
manual thoroughly.

Keep the manual in a safe place, so that you will be able
to consult it whenever necessary.

Power Supply

TREND 300 has a switched mode power pack with

a wide power supply range of 100 V~ … 240 V~,
50 ... 60 Hz. This allows connection to power supply
lines all over the world. It should be noted that this unit
must be connected only to a grounded contact socket
outlet.

This device is a product of protection class II (protective
insulation). The grounding wire of the power cord is
internal used as functional earth.

DC operation is also possible with 24 V DC, e.g. for
mobile use in a truck or caravan. Connect the unit to a
DC power source only with the connecting cable sup­plied.

Attention!

HOFFRICHTER GmbH shall not be held liable for any

damages or consequential damages, consequences
for safety, reliability and performance of the device, in
case of:

■ Tampering, modifying, adding expansion features,

adjustment, repair and maintenance executed by
persons who have not been authorized by us.

■ Building in accessory and spare parts which have

been fabricated by other manufactures and not
been released by us for use in the respiration

therapy device TREND 300 .

■ Using the therapy device in a different way than

what has been described in the manual.

6

Respiration Therapy Device TREND 300

Please observe the following points in order to avoid
dangerous situations which may occur:

1.Use the device exclusively for your own respiration
therapy and only according to what has been
directed by your physician.

2.Only use accessory recommended and offered
by your authorized dealer.

3.Check the alarm functions of the device at
regular intervals (see page 18).

4.Make sure the small opening in the mask or in the
connecting piece between mask and tube is
always free so that the exhaled air containing
CO

2

can escape.

5.Never place TREND 300 in a cupboard shelf or
under the bed. Make sure the air circulation
around the device is not hindered.

6.Keep the unit away from heaters and heated
surefaces.

7. In case oxygen is given to you in connection
with the respiration therapy make sure that all
regulations in view of general and fire safety during
dealing with oxygen will be observed.

8. During mobile use, the device is only to
switched on in the parked car.

9. You should immediately consult your physician if
due to use of the device problems such as dryness
of the mucous membranes in nose and pharynx,
trouble of the frontal sinus, earache, a runny nose,
hypersensitiviy of the skin, irritability, change of
mood, disturbance of the sense of direction or
memory defects occur.

10. You are requested to contact your authorized dealer
immediately, if the device does not function in a
proper way.

Safety Instructions

7

Respiration Therapy Device TREND 300

Safety Instructions

In order to maintain electric safety please observe the
following points:

■ Do not switch on the device if casing or cable

are damaged.

■ Do not open the casing of TREND 300. In case of

failures always contact your authorized dealer.

■ The device is always to be kept dry.

■ Never use the device in damp rooms

or in a bathroom.

■ Never place vessels or glasses

filled with liquids on the device.

■ In case the device falls into water, do not touch it.

■ Do not place the device in the near of

water-containing vessels (or a bath-tub).

■ Before cleaning the device the AC power plug

is always to be pulled out of the socket.

Stand-by-Operation

When the turbine is switched off the unit is in stand-by
mode and this is indicated by the illuminated display
with date and time.
When an air humidifier is connected to the unit, this is
in standby mode; the present heater setting is indica­ted.
The power consumption in this operating mode is
approx. 3,5 Watts.

By switching off the device with the main switch on the
reverse of the device TREND 300 is totally switched
off.
In this case the internal clock is supplied by
a built-in battery.

■ TREND 300 can safely remain

in standby operation all the time.

NOTE:

The memory of the digital trigger may be inaccurate if
the mask is put on and taken off repeatedly while the
fan is running. If the digital trigger does not change the
pressure correctly there after, it is recommended to set
back the trigger computer memory. Turning the ventila­tor off and on once is sufficient.

Intended Use

The TREND 300 is for treatment of nighttime sleep
apnea in patient weighing at least 30 kg.

This device is not intended for use with ventilator­dependent patients.

The TREND 300 provides positive airway pressure in
two pressure levels.

This device is designed to be used with nasal breathing
masks equipped with an exhalation port to allow a con­tinuous flow of air through the mask. Do not wear the
mask with the device turned off as rebreating of the air
occurs. Refer to the manufacturer´s instructions for the
mask and exhalation port.

Devices equipped with an AquaTREND accessory
humidifier provide humidification of the air delivered to
the patient.

Contraindications

The respiration therapy may be contraindicated for pati­ents with the following pre-existing medical conditions:

■ Bullous lung diseases

■ Pneumothorax

■ Extremely low blood pressure

■ Pneumocephalus or pre-existing CSF leaks or head

trauma.

Acute sinus or middle ear infection may be an indication
to suspend the therapy. Contact your physician if you
have questions about this condition.

Devices equipped with an AquaTREND accessory
humidifier are not intended for use with medications,
aromatic oils or other substances added to the humidi­fier water.

Not for use with patients whose supraglottic airways
have been bypassed.

8

Respiration Therapy Device TREND 300

Intended Use

TREND 300 is a respiration BILEVEL therapy unit for

treatment of nighttime sleep apnea. An air humidifier
can be obtained as an accessory.

For the pressure generation TREND 300 has an
electronically controlled blower. In order to keep
the patient's burdening as low as possible the
turbine has been equipped with sufficient power
reserves as well as a fast control circuit.

The pressure control is applied directly in
the breathing-mask. So the breathing musculature
needs not balance out the flow losses of the
breathing air in tube and humidifier.
That means the breathing work is made as
easy as possible.

NOTE:

No negative pressure is been generated during
exspiration phase.

Trigger device

The respiratory trigger recognises the patients efforts to
breathe in and out and transmits them to a control
mechanism.

The trigger mechanism of the TREND 300 has its own
microcontroller to optimise the release of the trigger by
dynamic adjustment of the release criteria to various

sleeping phases.
In conjunction with optimal flank adjustment the patient
experiences a pleasant ventilation which gives him or
her the impression that the unit pursues the natural
breathing mechanisms without any inertia.

TREND 300 has separate air ductings for breathing

air and convection air for the electronics.
The cold temperature technology applied in the power
electronics ensures a low temperature and a long life of
the device.
For the control of all functions TREND 300 has a
built-in microcomputer. The integrated quartz
alarm clock increases the comfort during use
of the device.

The air heats up marginally on passing through the unit
and has a higher water uptake capacity. Particularly in
winter when the room air is dry the mucous membranes
in the mouth and nose can dry out. This is unpleasent
and in isolated cases also leads to infections. Air humi­dification may therefore also be necessary in conjunction
with respiration therapy.

AquaTREND accessory devices are available which

provide humidification. The humidifier simply clicks into
position and can be removed by pressing the release
button.
Refer to the AquaTREND user´s manual or contact your
dealer for more information.

9

Respiration Therapy Device TREND 300

Technology of

TREND 300

Before operating the device, please pay attention to the
following:

1. Never switch on the device if it has recently
been in a very cold environment. Wait
approximately one hour for temperature
compensation.

2. Check the filter cassette at regular intervals and
change it regular (see pages 17, 26). Never use
the device without filter cassette.

3. Clean the mask system regularly, and check the
accessory especially the therapeutic tube, mask
and fixing straps. We recommend to wash the
face before going to bed as skin oils and
cosmetic should be removed.
Thus, the life-span of the mask will be increased
and skin irritations can be avoided.

4. Verify that the measuring tube (smaller tube) is
correctly attached, open and free of moisture or
obstructions. If water enters this tube during
cleaning, take special care to remove it.

Please pay attention to the following
advices for setting up:

1. Never place the device near a heater
or radiator. Make sure the air circulation especially
under and behind the device is not hindered by
furniture, curtains or pillows.

2. Place the device beside your bed on a firm and even
surface such as a nightstand or bedside table.

3. During mobile operation the device is also to
be placed on an even and firm surface which
should have a border preventing from falling down.

10

Respiration Therapy Device TREND 300

Hints to be observed before starting

11

Respiration Therapy Device TREND 300

Description of the Device

Measuring Tube

Connection

Air Outlet

Display

Program Keys

Control Key

Input Key

ON/OFF

Connectors for
AquaTREND

(accessory)

Release Button

(Top) for accessories

HOFFRICHTER

TREND 300

Front View

12

Respiration Therapy Device TREND 300

Description of the Device

Fernbedienung
Remote Control

DC IN 24 V

TREND 300

AC Power Plug

AC Power Switch

Type Identification Plate

DC-Input

RS232-Interface

Filter Cassette (Top)

Air Input

Back of the Device

13

Respiration Therapy Device TREND 300

Description of the Device

Breathing-Mask

(additional accessory)

Therapy Tube

(1,80 m)

Carrier Bag

Measuring Tube

Stoppers

Filter Cassette

Cable for
Motor Car

Exhalation Port

(additional accessory)

Power Supply Cable

Accessory and Spare Parts

1.As soon as the device is placed properly
please connect it with the power supply cable
to an earthing contact socket.

2.Switch on the AC power switch on the back of the
device. The device welcomes you with a little text
in the display. Afterwards the display switches
over to indication of current date and time.

3.Connect the therapeutic tube
a) to the air outlet and
b) to the breathing-mask.
The device must be used with an exhalation port.

4.Connect the measuring tube
to the sensor socket (measuring tube connection).

5.Put on the breathing-mask. If the automatic
operating mode has been selected the device
will start working upon the first breath. In case
of manual operating mode you must press
the control key (ON/OFF) for starting the device.

6.Now first TREND 300 starts with the prescribed
pressure for the certain period of time you have
selected for mask test. During this time you
should fit the mask correctly in order to eliminate
possible leakages.

14

Respiration Therapy Device TREND 300

Proper Use of the Device

TREND

300

ON/OFF

HOFFRICHTER

Fernbedienung

Remote Control

DC IN 24 V

TREND

300

TREND

300

ON/OFF

HOFFRICHTER

2 3a

3b 4

7.Place the therapy tube in such a way that
there is no tension onto the mask when you
lay down.

8.Breathe deeply and calmly and only through
the nose. If the softstart-function is activated
the device will after leakage test automatically
reduce the therapeutic pressure first and then
gradually increase it until the value prescribed is
reached. This enables you to fall asleep while
the device is working with a reduced pressure.

NOTE:

Read in the section "Programming" how the time
for softstart and mask test can be adjusted to your
individual requirements.

15

Respiration Therapy Device TREND 300

Proper Use of the Device

TREND

300

ON/OFF

16

Respiration Therapy Device TREND 300

Use of Oxygen

Please observe the following advices if you
must additionally inhale oxygen during the
respiration-therapy:

If you want to lead the oxygen directly into the
breathing-mask please use a non-buckling tube
made from material approved for medical applications.
Consult your authorized dealer.

NOTE:

At a fixes flow rate of supplemental oxygen flow, the
inhaled oxygen concentration will vary, depending on the
pressure settings.

Refer to the oxygen suppliers instruction for use.

WARNING!
Oxygen promotes combustion processes.
Observe the valid rules for fire safety during use
of oxygen, to reduce the risk of fire. Keep the oxygen
instruments free from oils. All sources of ignition inclu­ding smoking or smoking materials must be kept
away from the device and preferably out of the room.

WARNING!
If oxygen is used with this therapy device, the oxygen
flow must be turned off when the therapy device is
not operating.

■ For therapy first switch on turbine and then switch

on oxygene.

■ For ending therapy first turn off oxygene then turn off

turbine. Please program "Automatic OFF" as
described on pages 19 - 22.

■ Before each use, check the proper fit of

the tube connections.

17

Respiration Therapy Device TREND 300

Cleaning Instructions, Changing of Filter

Daily Cleaning of the Breathing-Mask

■ Disconnect the mask and exhalation port from the

therapy tube.

■ Clean the breathing mask in accordance with the

instructions of the manufacturer of the mask.

Weekly Cleaning of the Therapy Tube

■ Disconnect the tubing from the TREND 300 and the

mask and exhalation port.

■ Before cleaning:

The measuring tube has to be closed tightly

with the stoppers.

■ Use mild soap water and rinse the measuring tube

very carefully with clear water.
Air-dry the tube very well.

■ After cleaning:

Remove the stoppers.

Changing the filter

■ If the filter is dirty or the display reads

>FILTER <

, the

filter cassette must be changed (see pages 26 and

27). Press on the underside of the unit on the filter
cassette protrusion and remove the cassette from
the top. (see picture)

■ To reset the message please keep the input key

pressed while switching on the device.

Weekly cleaning of the device

■ Unplug the AC power cord or switch off the main

switch.

■ Clean the device with a cloth moistened with

soap water. Afterwards wipe the device dry.

Cleaning of the fixing straps (if necessary)

■ Separate the fixing straps from the breathing-mask.

■ Clean the fixing straps in accordance with the

instructions of the manufacturer of the straps.

A chemical or thermic desinfection of the device or parts
of the device by the user is not necessary.
Before change of patient the hygienical reprocessing of
the device has to be realised by the authorised dealer or
manufacturer.

Changing the filter cassette

Fernbedienung

Remote Control

DC IN

24 V

TREND

300

18

Respiration Therapy Device TREND 300

Alarm Functions of

TREND 300

Power Failure

Probably you won't notice a power failure at night-time.
As a consequence you would permanently inhale the
exhausted air from the therapy tube. Therefore TREND

300 has an alarm mechanism responding if a power fai-

lure occurs at night-time or if a fuse becomes defective.
In this case an acoustic alarm would wake you up
so that you can take off the mask and breathe fresh
air. The alarm can be switched off by pressing the
control key (ON/OFF).
After the end of power failure the turbine of TREND

300 starts again automatically.

Mask Alarm

This alarm function is active only if the automatic
function is switched off. If at night-time the mask
slips down or the therapeutic tube is pulled off the
device won't switch off automatically but raise an
acoustic alarm. This additional safety function,
however, requires that the device is switched on and
off with the control key (ON/OFF) each morning and
evening.

Wake-up Alarm

For higher comfort TREND 300 has an integrated
alarm-clock. It can be activated and deactivated with
the program keys.
The alarm-clock raises alarm at the pre-set wake time.
If you press the control key once the alarm will stop
for the next five minutes and if you press it twice
the alarm will be totally switched off.

Check of the Power Failure Alarm:

Use the device with running turbine and pull out the AC
power plug or switch off the AC power switch. Now the
acoustic alarm should be occur. Check every month if
the acoustic signal lasts long enough (guide value 1 min).
After pressing the control key or switching on the power
supply the acoustic signal will stop.

Check of the Mask Alarm:

Use the device with running turbine and switch off
automatic function. Do not fix the mask to the face.
After 10 seconds an acoustic signal will occur.

19

Respiration Therapy Device TREND 300

For programming the functions of TREND 300
three keys are available:

 = Input key
 = Program key
 = Program key

By holding the INPUT key pressed, you reach
the input mode after 1 second, and then
you see the menu of TREND 300 in the display.
The following 2 different kinds of menu can
be activated:

Standard-Menu Complete-Menu

WAKE TIME ........04:45 WAKE TIME .......04:45

TIME ........................ 16:24 TIME ..........................16:24

DATE ................. 12.11.02 DATE ....................12.11.02

EXIT MENU RAMP................0s/0min

AUTOMATIC...........OFF

(1)

I-SET.......... ......12,0hPa

(PIN-protected)

(2)

E-SET....... 8,0hPa

(PIN-protected)

(3)

I-SLOPE.......... 0,5s

(PIN-protected)

(4)

E-SLOPE........0,5s

(PIN-protected)

TRIGGER ................ 3

MODE............BILEV-S

BRIGHTNESS ...100%

OPERATION......01937h

EXIT MENU!

The display always shows two lines. With the keys
 and  you can choose which lines are to be indica­ted. A triangle symbol in front of a line means that this
line has been chosen.

Hints for (1) to (4):

T

he display first indicates the menu line (1). After adjust­ment of I-Pressure the lines (2) to (4) will be indicated step
by step and can be set by the doctor.

Example: Setting alarm clock

Press key  for 1 second. Display indicates:

WAKE TIME.......... 04:45

EXIT MENU!

After pressing key  again the hour of the alarm time is
flashing and can be changed by the keys  and .
Press key  again for changing alarm minute according
to same procedure. To come back to the menu press
the key  again. For leaving the menu select point

"

EXIT MENU!

":

Functions of TREND 300

NOTE:

If you prefer instead of
the standard-menu the
complete-menu (or
reverse) contact your
dealer please.

20

Respiration Therapy Device TREND 300

Functions of TREND 300

WAKE TIME..........06:00

EXIT MENU!

Press Input key  to leave the programming mode.
During standard operation the display indicates
date and time:

SA 28.FEB 12:42

The alarm clock can be activated or deactivated by the
keys  and .

With the key  the alarm clock can be switched on. For
controlling the programmed alarm time is indicated for a short
time in the display. After this a bell symbol shows that
the alarm clock is active.

SA 28.FEB12:42

With the key the alarm clock can be switched off (e.g. on
Sunday). In this case the bell symbol is not indicated.

NOTE:
If there is no key pressed during programming for
30 seconds the programming mode will be left
automatically.

All functions are programmed in the same way:

Press  for 1 s, and choose the line requested with the
keys  and :

By pressing the key  the following options can be
chosen:

WAKE TIME WAKE HOUR, WAKE MINUTE
TIME HOUR, MINUTE
DATE YEAR, MONTH, DAY, WEEKDAY
RAMP 1. mask test time: 0...90 s (in 5 s-steps)

2. softstart time: 0...60 min (in 1 min-steps)
AUTOMATIC ON, OFF
I-SET 1. PIN INPUT! following selection after:

2. 3,0 ... 18,0 hPa (in 0,5 hPa-steps)
E-SET 3,0 ... 18,0 hPa (in 0,5 hPa-steps)
I-SLOPE 0,0 ... 1,5 s (in 0,1 s-steps)
E-SLOPE 0,0 ... 1,5 s (in 0,1 s-steps)
TRIGGER 1 ... 5

MODE BILEV-S (only indicate, not selection possibility)
BRIGHTNESS 100%, 50%
COUNTER POWER, BLOWER, FILTER, THERAPY (time indicate in h)
EXIT MENU!

If you want to finish the programming, choose the menu
line

“EXIT MENU!” and press key  .

21

Respiration Therapy Device TREND 300

Functions of TREND 300

Date, Time

Date and time of the internal clock can be adjusted. The
internal clock has a built-in battery with reserve power
for 8 years without mains connection. You can adjust
the weekdays (Mo thru Su), day (1 till 31), month (1 till

12), year (00 till 99), hour (00 till 24) and minute (00 till

59). The clock serves for indicating the right date, for
the right function of the alarm-clock and for the exact
recording of current events.

Ramp

After each turbine start the computer of TREND 300
checks whether a softstart-ramp has been program­med. During the time which you have preset the soft­start function slowly raises the pressure from 3 hPa
(mbar) up to the pressure prescribed by your physician.
This should ease your falling asleep. Before starting soft­start TREND 300 checks the proper fitting of the mask
using the full pressure for the selected time.
Especially if you feel you have not yet got used to the
respiration-therapy the softstart can give you relief.

The delay time of TREND 300 can be adjusted
between zero (in this case the therapeutic pressure
prescribed is instantly given) and 60 minutes (the
therapeutic pressure prescribed is built-up within 60
min).

To ensure that there is no mask leakage even during the
high therapy pressure a mask test time up to 90 s can

be programmed. This mask test runs under full therapy
pressure before starting ramp and checks whether there
is a leakage.

0

10

Softstart time programmed in min

pressure
prescribed:
10 hPa (mbar)

0-90 s

3

The pressure is gradually
increased up to the
therapeutic pressure

time in min

pressure

in hPa

mask test

30 60

15

45

22

Respiration Therapy Device TREND 300

Automatic Operation

In case of automatic operation you have only to put on
the mask. As soon as you breathe the turbine of

TREND 300 will be switched on.

If you take off the mask the turbine will be switched off
automatically after a delay time of 5 seconds. During
automatic operation the device also will be switched off
if mask or tube drop off unnoticed at night-time.

That is why TREND 300 optionally offers the function
"Automatic OFF" with mask-alarm.
If you choose this function you must press the CON­TROL key (ON/OFF) for switching on the device each
evening and switching off each morning. In this case
you get an acoustic alarm if the mask drops off at night­time.

Pressure (I-Set, E-Set, I-Slope, E-Slope)
The adjustment of the desired pressures and slopes is
done by the physician who has a special remote control.
Without remote control, however, it is also possible to
change the pressure adjustment of the device provided
that a respective PIN has been programmed. The PIN
will enable the service company to do the respective
work if necessary.

Please, never try to "crack" the PIN.
You should better talk to your physician in case of any
doubt about the pressure prescribed.

Trigger

The trigger sensitivity is adjustable in 5 steps.

Example:

TRIGGER .... 1 (lowest trigger threshold

= highest trigger sensitivity)

TRIGGER .... 3 (medium trigger threshold

* factory adjustment)

TRIGGER .... 5 (highest trigger threshold

= lowest trigger sensitivity)

NOTE:

The adjustment of the trigger sensitivity should ever be
made by your physician.

Brightness

You can adjust the brightness of the display to suit your
needs by selecting between two stages:

■ 100% = maximum brightness, the display is easily

legible also in brightly lit rooms.

■ 50% = minimum brightness, the display is easily

legible in slightly darkened rooms.

In the event of an alarm, the display always switches auto­matically to 100% brightness for the duration of the alarm.

Power

Under this point you find the running time of the turbine,
the operation time of the filter, the total operation time
including stand-by operation and the therapy time of

TREND 300.

Functions of TREND 300

23

Respiration Therapy Device TREND 300

Trouble Shooting

Pain in nose, nasal Inflammation Stop therapy and contact
cavity or ears your doctor

Unpleasant feeling of too Problem with Contact your doctor
high pressure prescribed high pressure

You are not yet used to the Relax and use softstart function
respiration-therapy

Dryness and irritation Dry treatment air Consult your doctor about prescribing the
of nose and throat addition of AquaTREND humidifier

Symptoms of sleep apneas Your personal life Contact your doctor
appear again conditions have changed

Devise is not operating properly Check device by an

authorized company

PROBLEM POSSIBLE CAUSE HELP

24

Respiration Therapy Device TREND 300

Trouble Shooting

Irriteted or dry eyes Leakage between mask Check correct position

and skin of mask

New mask if defective

Wet nose Reaction to the air flow Contact your doctor about use of a humidifier

Head cold, sinus drainage or Normal cold or sinus infection Stop use if your condition interferes with
discomfort treatment, contact your doctor

Cold nose Low room temperature Increase room temperature

Warm up tube under your
pillow

Inflammation of the Wrong mask size Contact your doctor
skin under the mask

Fixing straps too short Relax the straps

Allergic reaction Contact your doctor

PROBLEM POSSIBLE CAUSE HELP

25

Respiration Therapy Device TREND 300

Trouble Shooting

Air too warm Dirty filter Exchange filter

Air input is blocked Make sure air input is clear

Heating too close to Check position of TREND 300

TREND 300

No air flow Device is defective Ask your authorized dealer

Water in measuring tube Make sure air input is clear

Low air flow Softstart function is active Decrease softstart time

Air input is blocked Make sure air input is clear

Turbine works always Measuring tube is Check measuring tube
with maximum speed disconnected or blocked

Leakage in device Ask your authorized dealer

Water in measuring tube Dry measuring tube

Therapy pressure is not constant Water in measuring tube Dry measuring tube

Device is defective Contact service company

PROBLEM POSSIBLE CAUSE HELP

26

Respiration Therapy Device TREND 300

Display Indications

In the following table the most important display indications are shown. The sense off all other indications can be taken from context.

MASK TEST. . .55s

You still have 55 s for fitting the mask correctly.
After that time the softstart function starts.

SOFTSTART 10:33

You still have 10 min and 33 s until the full therapeutic pressure is reached.

CHECK BREATHING

The mask has dropped down from your face or you haven't put it on during "Automatic OFF"

MASK

and running turbine.

ALARM-CLOCK ON

In normal operation you have pressed the key  and got the message that you will be
woken up at a quater to six o'clock.

ALARM-CLOCK OFF

In normal operation you have pressed the key  and got the message that the alarm-clock
has been switched off right now.

WAKE ALARM

Wake alarm has been triggered. Press the control key  once in order to start the slumber.
If you press the main key for the second time during the slumber phase the alarm is finally switched off.

SLUMBER. . . 1:18

You still have 1 min and 18 s until the alarm-clock is ringing again.

WAKE ALARM OFF

You have pressed the control key and finished the slumber phase.

> FILTER <

You are required to exchange the filter cassette (see page 17). If switching on the device after filter exchange please
keep the input key  pressed in order to reset the message.

> SERVICE <

TREND 300 needs a security check. Please inform your after-sales service as only the

authorized service people can reset this message. The device can be used furtheron.

PUT ON MASK!

You are required to put on the mask and to breathe through the nose.

TAKE OFF MASK!

During activated automatic one has tried to switch off the device by hand. Please take off the mask.
The device switches off the therapeutic pressure after a few seconds.

BAT: 24,6 V

Voltage on board of a vehicle (if battery operation)

POWER FAILURE

After the end of power failure the turbine of TREND 300 restarts automatically.

RESTART TURBINE

27

Respiration Therapy Device TREND 300

Inspection and Check

Although all parts of TREND 300 are proved to have a
long life the device should be examined from time to
time. A device check is necessary if the message

"SERVICE!" appears in the display. In this case we

urgently recommend you to have the device examined
and maintained by the authorized after-sales service
because only these people have the necessary tools
and measuring devices. Also in case of the

"SERVICE!"

display, the device can be used furtheron.

Attention!

The display message

"SERVICE!" cannot be

removed if the maintenance is executed by
an unauthorized workshop.

For a long lifetime of your TREND 300 device
note the following points:

1.Please follow the cleaning instruction on the
page 17.

2.Check the system at regular intervals.

Please pay attention to the following
check-list:

■ weekly check of the alarm function

"Power failure" (see page 18)

■ weekly check of "Mask Alarm"

(see page 18)

■ check of the filter cassette and if necessary

replacement by a new one

Specification HOFFRICHTER Order-No.

Filter Cassette 00007870
AC Power Supply Cable 31100001
Therapy Tube 00007116
Stoppers 44000012

(for closing measuring tube during tube cleaning)

Carrier Bag 00007860
User´s Manual 00007877
Cable for motor car 00009212

Plug-In-Humidifier
AquaTREND III-H0 00007992
AquaTREND III-H1 00007993
AquaTREND III-H5 00007990

NOTE:
The TREND 300 should be used only with therapy
tubes provided by the manufactuer.

Concerning available approved therapy masks and
additional accessories please contact your authorized
dealer.

28

Respiration Therapy Device TREND 300

Approved Accessories

29

Respiration Therapy Device TREND 300

Technical Data

Dimensions (B X T X H) 230 x 225 x 110 mm

Mass ca. 2,5 kg

Power supply 100 V~ … 240 V~, 50 ... 60 Hz

24 V DC

Pressure range IPAP, EPAP: 3 … 18 hPa (mbar) in steps of 0,5 hPa

Power consumption without humidifier 22 W (average value)
Power consumption of stand-by < 5 W

Pressure variance < ± 0,08 hPa (mbar) at 10 hPa

according to DIN EN ISO 17510

Inner resistance < 0,12 hPa s/l

Noise level without mask < 27 dB(A) at 10 hPa (mbar)

according to DIN EN ISO 17510

Constant display pressure value, bargraph, date, time, alarm

clock state

Operating Altitude - 400 m ... 3500 m above sea level

Operating Temperature 5 °C ... 40 °C

Storage Temperature - 40 °C ... 70 °C

CE-mark according to the EC-directives 93/42/ECC, concerning medical devices, class IIa

Data subject to technical alteration

30

Respiration Therapy Device TREND 300

TREND 300

-

patient pass

name

first name

street

postal zip code/place

telephon

birth. on

health insurance company

hospital-stamp

family doctor-stamp

customer service-stamp

serial-No. software-version

type of mask mask size

Therapy process

date

weight

high

blood pressure

apnea index

medicine

IPAP-Set

EPAP-Set

I-Slope

E-Slope

therapy standing

next service

executed

31

Respiration Therapy Device TREND 300

Notes

HOFFRICHTER type names:

TREND 110 Monolevel Typ 5CP 102

TREND 210 Monolevel Typ 5CP 210

TREND 300 Bilevel Typ 5CP 301

TREND 400 Bilevel ST20 Typ 5CP 401

TREND 500 Bilevel ST33 Typ 5CP 501

AutoTREND Auto CPAP Typ 5CP 253

AquaTREND III-H0 humidifier Typ 5CP 931

AquaTREND III-H1 humidifier Typ 5CP 941

AquaTREND III-H5 humidifier Typ 5CP 961

TREND 300-eng-1208-06

HOFFRICHTER GmbH

Mettenheimer Straße 12/14
19061 Schwerin, Germany

Tel.: [phone]
Fax: [phone]
Mail: info @hoffrichter.de
URL: www.hoffrichter.de

SALES & SERVICE:MANUFACTURER: