Direct Healthcare Services Dyna-Form Mercury Advance User manual

DIRECTHEALTHCAREGROUP.COM
Service Manual

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DYNA-FORM MERCURY ADVANCE SERVICE MANUAL
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The Dyna-Form Mercury Advance is a pressure relieving mattress suitable for use with patients at VERY HIGH RISK
of pressure ulcer damage.
Offering high levels of patient comfort, this unique system has the facility to “step up” to that of a dynamic mattress when clinically
required. Similarly, the mattress’s function can be downgraded as the patient’s condition improves.
These features make it particularly beneficial for use within the patient’s home or palliative care environment and help reduce
logistic and decontamination costs. The clinical benefits of a single system are equally applicable to those of a modern hospital
setting. A higher maximum weight capacity, up to 40 stone / 254kg, allows the product to meet the modern challenges of
those heavier clients. All component parts are interchangeable and replaceable, maximising product life and reducing
environmental impact.
1. Introduction .....................................................................................................................................................................4
2. Indications/Contraindications for Use ..................................................................................................................................4
3. Quick Reference Guide ......................................................................................................................................................4
4. Warnings and Cautions .....................................................................................................................................................6
5. Installation .......................................................................................................................................................................6
6. Operation .........................................................................................................................................................................7
7. Audible/Visual Indicators ...................................................................................................................................................8
8. Transportation ..................................................................................................................................................................9
9. Cleaning & Maintenance Procedures ..................................................................................................................................9
10. Troubleshooting............................................................................................................................................................16
11. Replacement Pump Parts ...............................................................................................................................................17
12. Technical Specification ..................................................................................................................................................18
13. Technical Data..............................................................................................................................................................22
14. Optimum Conditions for Use ..........................................................................................................................................22
15. Symbols Guide ............................................................................................................................................................22
16. Detachable / Removable Parts .......................................................................................................................................23
17. Disposal .......................................................................................................................................................................23
Contents

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1. Introduction
The Mattress consists of a foam head cell and series of 14 transverse air cells, each containing a unique
foam profiled insert, which are in turn held within a foam U Core, all protected by a vapour permeable
waterproof cover. The single head end cell and the formers consist of foam only. The transverse cells are
arranged into alternate pairs of A and B cells which are filled and emptied in sequence.
In Static Mode, the mattress attains the pressure reducing properties of the Dyna-Form Mercury
static foam mattress (details available on request), whilst in Alternating Mode the mattress is able to
offer similar properties to a pressure relieving dynamic system.
The digital Control Unit controls a Control Unit that allows air to flow into, or out of the air cells as
required according to the operating mode selected. It also maintains the air pressure within the
mattress at the required level and controls the action of the audible/visual Audible Warning system
in the event of mains supply failure or over or under inflation pressure. A CPR Valve located at the
Control Unit end of the umbilical hose permits the rapid deflation of the Mattress in an emergency.
This symbol when illuminated (The green indicator light) is used to indicate that the equipment is
on or ready for use.
When a patient requires a true dynamic function or indeed more pressure in the cells, as they
may be uncomfortable or feel as though the support surface is too soft or unstable, then please
select a “High” setting (pressure 26mmHg). This must only be used by a trained clinician as often
too high pressures can further agitate certain patient conditions.
When a patient requires less pressure in the cells, as they may be uncomfortable or indeed hyper
sensitive to cell movement or indeed if the patient is still reddening further, then please select a
“Low” setting (pressure 18mmHg). This must only be used by a trained clinician.
This function is used to silence the Audible Warning. The LED will remain lit if the Audible
Warning has been silenced previously, however a fault is still detected. Refer to the power switch
in order to re-set fully. If the Audible Warning continues to sound repeatedly, along with an
illuminated light, then an engineer must be called.
This symbol indicates an “Audible Warning Failure”.
Please see troubleshooting guide below for how to re-set.
This symbol when illuminated indicates a Service is required.
DHG recommends a service every 8760 hours of operation (one continuous year running).
LED Mode Settings
Note: Please ensure (when available) that all securing straps on the base of the mattress are secured onto
the MOVING PARTS of the bed frame.
For shut down procedure, see 4.2 Control Unit section.
Power On / Off
True Dynamic /Firmer Setting
Silence Audible Warning
Audible Warning Failure
Service Indicator
Low / Comfort Pressure Setting
Power Switch Audible Warning Reset
The power switch simply switches the mains power to the Control Unit on and off.
When the Control Unit detects an Audible Warning condition, this can be silenced (see page 5)
and re-set by switching the Control Unit off and then back on again.
3. Quick Reference Guide (Frequently used functions)
This is a quick reference guide for the Dyna-Form Mercury Advance System
Product Code MAT1210001
2. Indications/Contraindications for Use
2.1 Intended Use
Mercury Advance is a mattress replacement system designed to offer pressure relief and
prevention of pressure sores to patients spending the majority of their time in bed.
The intended patient population is for individuals aged between Paediatric – Geriatric with a body
weight >10kg.
2.2 Contraindications
The Mercury Advance Mattress System should not be used for patients with unstable fractures,
gross oedema, burns or intolerance to motion.
CPR Valve
Please ensure that the CPR connector is always placed fully home, prior to inflating the mattress.
NB: The mattress will NOT inflate properly should this not be the case.
The CPR connector is only to be used in the event of a clinical emergency for priority use.
However, disconnecting this function will cleverly deflate air rapidly from the mattress in
readiness for transport / static mode.

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5. Installation
5.1 Mattress (This is the applied part type BF)
Place the Dyna-Form Mercury Advance Mattress directly on to the bed platform ensuring that the
Blue multi-stretch waterproof cover is on top and that the umbilical hose is located at the left-
hand corner at the foot end of the bed. Note: The umbilical hose can be located inside the cover
under the “Open Here for Air Inlet” printed in the bottom left hand corner of the mattress.
Cover the Mattress with a loose-fitting sheet.
Static Mattress Use
The Dyna-Form Mercury Advance Mattress can be used as a pressure reducing mattress for
patients at High Risk of pressure ulcer damage without the need to attach the Control Unit.
Alternating Mattress Use
If / When required, the Dyna-Form Mercury Advance Mattress can be used as an alternating
mattress system by attaching the Dyna-Form Mercury Advance Control Unit system.
No other system should be attached to the mattress as the design settings and internal air
pressure properties of the Dyna-Form Mercury Advance Control Unit) are specific to this
mattress only.
The Dyna-Form® Mercury Advance is a replacement mattress system and should NOT be placed
on top of any existing mattress.
The startup time from static to dynamic mode is immediate.
5.2 Control Unit
Hang the Control Unit onto the footboard. The mounting hooks swivel to suit the thickness of the
footboard or rail. Connecting the Umbilical Hose to the Control Unit , place the supplied 3-pin
electrical plug into the wall outlet and switch on:
(a) Open the zip located at the bottom left hand side of the mattress and pull out the Blue Umbilical hose.
(b) Attach the Blue Umbilical Hose to the Control Unit by connecting the air connector at the end of
the Umbilical Hose to the air inlet connector at the bottom left hand side of the
Control Unit. Ensure that the Red CPR Release button is located on top of the Air Inlet connector
after connection is complete.
(c) Re-close the zip as far as possible without clamping the Blue Umbilical Hose to ensure the
mattress and air cells are sealed within the cover.
(d) Shut down is the reverse of items a, b & c above.
6. Operation
Attach the supplied mains cable to the Control Unit by inserting the “kettle” type connector into
the recess located on the left-hand side of the Control Unit. The mains cable has been designed
specifically as a removable part to aid in easy replacement should it become damaged in use.
Power cables not supplied by Direct Healthcare Group are not recommended for use with this
Control Unit.
The mains plug should be turned off and removed from wall socket as a means of isolation.
Plug the mains cable into a suitable 230v mains socket and switch on the Control Unit using the
on/off switch.
After the Control Unit has been turned on both the “High “and the “Low” lights will flash together
intermittently until the Control Unit has attained its initial operating pressure. Once the Control Unit
has attained its initial operating pressure the “Low” light will stay on constantly and the mattress is
ready for use.
General Information (Caution) (Warning)
• There are no special skills required to operate the system.
• The Medical Professional is responsible for applying his/her best
medical judgment when using the system.
• The electricity supply is of the type indicated on the Control
Unit.
• Check the mains lead is free from damage and is positioned
so as not to cause an obstruction, or injury. E.g. Strangulation
of a child or trip hazard.
• Ensure the mains lead cannot become trapped or crushed,
e.g. by raising or lowering of the bed or bed rails or any other
moving object.
• The Control Unit must only be used with a suitably approved power
cord and plug set as supplied by DHG.
• The system is not to be used in the presence of flammable
anaesthetics.
• Suitable for continuous use.
• Not suitable for sterilisation.
• Do not position the Control Unit to make it difficult to disconnect the
power supply or plug.
• Do not place the Mattress on or close to a source of heat.
• Do not use with hot water bottles or electric blankets.
• Ensure the Control Unit is not exposed to:
1. Excessive heat sources e.g. fires, radiators etc.
2. Water, particularly immersion.
• DHG strongly advise against smoking whilst the Control Unit is
in use. This is to prevent accidental secondary ignition of items
which may be flammable e.g. bed linen. The materials used in
the manufacture of the Mercury Advance System comply with the
required fire safety regulations.
• Do not use sharp objects on or near the mattress system
as this will cause damage.
• Do not store in damp conditions.
• Do not use in an oxygen enriched environment.
• Not suitable for use in an Outdoor Environment.
• Intended for both Home Healthcare and Professional Healthcare
environments.
• Do not connect to any other medical device or equipment.
• Correct fuse rating MUST be used. Failure to do so could result in
the risk of a fire.
• The System should be cleaned after use or between patients.
Refer to Cleaning section.
• All internal and external hoses must be free of twists, kinks.
The external hose should also be properly connected and
positioned so that the risk of obstruction or injury is eliminated.
• Do not use bleach, phenols. Chlorine based products which exceed
1000ppm. Solvents or alcohol based cleaners.
• All the above warnings and cautions together with safety
considerations should be observed at ALL times during its use.
• Select correct setting ‘Hi’ or ‘Low’ as required. Care should be
taken not to accidentally change settings once set. This may affect
the desired requirement of the therapy. This could also be caused
by pets, pests or children.
• This device does not emit radiation.
4. Warnings and Cautions

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6.1 Low / High Settings
The Dyna-Form Mercury Advance Mattress, in Alternating Mode, has two pressure settings. The
initial setting that the control unit will revert to upon set up is “Low”. The “Low” comfort setting
is ideal for the lighter patient or those who feel discomfort when on a normal alternating air type
mattresses system. However, for patients with existing pressure damage or those at Very High
Risk, it is recommended that dependant on the clinical judgement of the clinician,
the “High” setting is activated by pressing the +/- button once, which is located on top of the
Control Unit.
In “High” Mode the Control Unit attains more of the characteristics of an alternating air mattress
system whilst still utilising the advantages of the static foam inserts. Repeatedly pressing the
‘mode’ button enables the Low & High modes to be selected in turn.
6.2 CPR Deflation
The CPR system consists of a manually operated button located on the Air Inlet connector
attached to the Control Unit. By pressing the Red Button, which will release the connector locking
system, the user can remove the connector unit which will deflate the mattress air system back to
that of a static foam mattress.
Note: After a short period as the Mattress deflates the ‘Low Pressure’ Audible Warning is
activated and can be cancelled by switching the Control Unit off.
6.3 Troubleshooting
For assistance (if needed) in setting up, using or maintaining the Mercury Advance System, or to
report unexpected operation or events, please contact Direct Healthcare Group on the contact
details on the reverse of this manual.
7. Audible/Visual Indicators
Warning conditions are indicated by a flashing red display accompanied by an Audible Warning.
In each case the user should respond by turning the Control Unit’s switch off and investigating the cause.
7.1 High Pressure Warning
This condition could be caused, for example by a kinked Umbilical Hose or visitors,
and others, sitting suddenly on the Mattress.
7.2 Low Pressure Warning
This condition could be caused, for example, by incorrect fitting of the air inlet connector,
opening of the CPR Valve or a leak in the Mattress due to a cut or puncture.
7.3 Mains Failure Warning
This condition may be caused, for example if Mains power is lost.
7.4 Alternating Mode Failure (no alternation)
This will be indicated by a warning LED on A and B and an Audible Warning.
1. Reset the warning – turn off Power and press the Audible Warning mute button.
2. Disconnect the air hoses to reduce pressure – reconnect when pressure has decreased.
7.5 Initialising Failure
This will be indicated by a warning LED on A, B and C and an Audible Warning.
1. Press the Audible Warning mute button to silence the Audible Warning.
2. Check the power cable is firmly plugged into the mains outlet and the Control Unit;
and check the mains power is switched on.
3. Check the Control Unit fuse (1 AMP) – fuses can be released using a screwdriver
to push and turn.
8. Transportation
To change the location of the mattress, remove the Umbilical Cord and allow the mattress to return to its Static Mattress form.
Switch off the Control Unit using the on/off switch and disconnect the electrical supply cable from the mains socket. The mattress
can now be moved to a new location where it must immediately be reconnected to the mains electrical supply and the Control Unit
switched back on. Once the Mattress has been refilled, the ‘Alternating’ mode will automatically revert back to the Low setting and
should be reselected to High should this be desired by the clinician.
Warning: The Mattress will not ‘alternate’ when disconnected from Control Unit and /or the mains electrical. Also, refer to environmental
conditions section at rear of this manual.
9. Cleaning & Maintenance Procedures
9.1 Cleaning Procedures
Warning: Before cleaning the System make sure that the Control Unit is disconnected from the mains electricity supply.
Do not immerse the Control Unit in water or other fluids.
Do not autoclave, nor use phenol for cleaning.
Do wash hands before commencing the cleaning process.
Wear appropriate protective clothing such as gloves, apron
and a mask.
Ensure all work surfaces are cleaned before and after contact with the Mattress.
9.1.1 Cleaning the Mattress
1. Cleaning should take place before and after use, and between patients.
2. With cover left on the Mattress disconnect the Mattress from the Control Unit.
3. Clean the surface of the wash down table with Hypochlorite solution or equivalent disinfectant.
4. Wash Mattress top using hot water (60 degrees C) containing detergent – dry with a paper towel.
5. Use a Hypochlorite solution 1,000 parts per million available chlorine. For heavy contamination use a Hypochlorite solutions 10,000
parts per million available chlorine. Please ensure thorough rinsing after cleaning
.
6. Using suitable brush, hot water, detergent or Hypochlorite solution, clean Umbilical Hose and CPR Valve. Dry with
paper towel.
7. If required, the Mattress Cover may be removed and machine-washed at a temperature of 80 degrees C, for not less than 10
minutes. The individual Air Cells can be wiped down with established disinfectants.
8. To avoid shrinkage of the coverline dry in an indoor clean environment or tumble dry on a low heat setting not exceeding 40
degrees C and not for longer than 10 minutes. Covers must be thoroughly dried before re-fitting to the mattress.
9.1.2 Cleaning the Control Unit
The Control Unit can be cleaned by wiping with a cloth dampened with a detergent solution with the above recommended DiffX
dissolved within a spray bottle filled with 500ml of warm water. Also, refer to symbol chart.
9.2 Identification of the Control Unit (Serial Number)
The Control Unit is identified by serial number and GS1 compliant barcoding using
both 128 and 2D bar code identifiers.
Both product code and manufacture date are shown on the identification label.
The above Control Unit serial number is MA15090002 and manufacture date is 02
day of 09 month of year 2015.

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9.3 Checking the System
1. Plug in the mattress to the Control Unit.
2. Plug in the mains cable to the IEC inlet and switch on the power.
3. The LED indication LOW and HIGH pressure will flash during start up.
4. The Control Unit will run until the mattress is inflated to the pre-
set pressure setting (LOW).
5. The LED indicating the setting (LOW) will be lit.
6. The system is ready to use.
7. The system is designed so the Control Unit sets the pressure
as required and will run for short periods of time to maintain the
required pressure or alter it when moving from LOW to HIGH.
9.5.1 Opening the Control Unit.
To remove the front of the enclosure,first unscrew the four corner screws ( Marked A ).
A
Using a calibrated manometer or similar device, connect the Control Unit and ensure that air pressure
outputs are within the below guidelines. Please note readings must be obtained in mmHG.
9.3.1 Control Unit Pressure readings
Pump Type Minimum Maximum
Mercury Advance V2 18 26
A small variance of +/- 2mmHG from the prescribed pressures is permissible. Any variance
significantly in excess of this would constitute a failure of the test conditions.
1. To reset, press and hold +- button simultaneously with the mute sound button.
This will reset the running hours for the control unit and de illuminate the service light.
1. Switch on the control unit holding the +- button simultaneously with the mute
sound button, Keep both buttons pressed for 5 seconds with power applied.
The service Light will illuminate after 8760 running hours (One year of continuous operation)
to indicate the control unit requires an annual Service.
If you have applied a service kit as part of your preventative maintenance program before the light
has illuminated follow the below process.
9.4 Service Light Reset Procedure
9.5 The components
The main components in the Mercury Advance Control Unit.
9.5.2 PCBA
Connector for Compressor
Connector for Rotor valve motor
Connector for Micro switch (Brown/blue)
Connector for Membrane
Connector for Software download (for manufacturer only)
Connector for (red/black) from Power input
Pressure sensor
Connector for Power in (brown/blue)
1
2
3
4
5
6
7
8
1 2
4
5
6
7 8
3
9.5.3 The compressor
Attachment plate
Label
Silencer
Air outlet
Air inlet
Rubber suspension
Compressor power
cable (Brown/blue)
1
2
3
4
5
6
7
1
2 3
4
5
6
7
9.5.4 Rotor valve with motor
Rotor valve motor
Spring
Micro switch
Lock pin
Rotor valve cap
Rotor valve body
1
2
3
4
5
6
2
3
4
5
6
1
1 2 3
1
2
3
9.5.5 The hooks
Hinge Lock
Friction Tube
Hook
1
2
3
9.5.6 Air inlet/power outlet
Air outlet
Power inlet
Fuse holder
ON/OFF
1
2
3
4
4

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9.6 Taking the System Apart
The Control Unit is designed so almost all components
can be removed without disassembling other parts.
1 Open the housing by removing the 4 screws from the rear
case.
2 Remove PCBA by disconnecting the cables and unscrewing
the 2 screws.
3 Remove the compressor by unscrewing 6 screws and
disconnect the power cable from the PCBA and the air tube
on the compressor.
4 Remove the air out/power in part by disconnecting the air
tubes and the cables from the PCBA.
5 Remove the rotor valve by pulling out the locking pin
from the motor axes and removing the air tubes from
the rotor valve.
6 Remove the rotor valve motor by unscrewing the 2 screws.
7 Remove the micro switch by unscrewing the 2 screws.
8 Removing the hooks requires the compressors to be removed
first. Remove the four screws on the inside of the back part
of the housing and then release the attachment part for the
hooks from the outside of the housing.
1 2
3
4 8
5
6
7
1
2
3
4
5
6
7
Control PCBA
Compressor
Air Outlets
Rotor valve
IEC Power Inlet
Rotor valve motor
Micro switch
1
2
3
4
5
6
7
9.7 System Layout
9.9 Servicing
The Control Unit has a light that when illuminated indicates a Service is required.
Direct Healthcare Group recommend that the control unit be serviced annually from installation. The service light will illuminate after
8760 hours of operation (one year of continuous operation) as a guideline for preventative maintenance. The unit contains serviceable
parts and should only be carried out by persons as described in section 8.1. For Service, maintenance and any questions regarding
this please contact DHG.
9.8 Maintenance
Change the air filter: Remove air filter holder by pressing the plastic catch downwards and lifting the air filter holder up.
Take out the filter and put in a new one and put the filter
holder back.
Warning – Only qualified technicians trained or formally approved by Direct Healthcare Group Ltd. in the operation
and maintenance of Direct Healthcare Group products may carry out maintenance, modification or repair work
on the equipment. Unqualified personnel attempting to work on Direct Healthcare Group Control Units risk serious
injury to themselves and others and possibly death by electrocution. Inlet fuse NOT to be replaced by operator or
patient,
to be replaced by service personnel only. Warning –
Do not modify this equipment without authorisation of Direct Healthcare Group.
9
9.9.1 Compressor Maintenance
4 Remove the compressor from the attachment plate,
which will require cutting the 6 rubber suspensions.
1 Ensure power cable is disconnected.
2 Open the housing by removing the 4 screws from
the rear case.
3 Remove the compressor by unscrewing 6 screws
and disconnect the power cable from the PCBA
and the air tube on the compressor.
2
4
3

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9 The compressor can now be assembled.
Attention: ensure no leads are pinched
and seal is intact.
10
Reattach the compressor to the
attachment plate, using 6 new
suspensions.
10
9.9.2 Rotor Valve Maintenance
The Control Unit has a light that when illuminated indicates a
Service is required. Open the housing by remove the 4 screws from
the bottom part.
Grease the rotor valve: Press down the cap of the rotor valve
release the lock pin. Lift of the cap and put a thin layer of grease
(Silicone grease dow Corning Molykote PG21, 613000103) on the
bottom side of the cap. Assemble back again.
9.9.3 Fuse
Check the fuse: Check the fuse and if required add a spare in the
holder for the fuse in the fuse holder.
5 Release the magnet by firstly unscrewing 4
(7mm ny-loc) and remove the compressor back
plate and seal.
5
7 Remove both valve bodies, unscrew and remove
the diaphragms.
8 Replace the diaphragms, ensuring the location nipples
are seated correctly in the housing. Confirm the
diaphragm runs smooth around the housing.
6 To remove the shuttle, loosen the compressor screws by
approximately 25mm to release the compressor lid and
seal, followed by 8 screws either side of the compressor
casing.
6
8
7

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Image Part
Number Description Qty. per box
SP021001 Motor for Rotor Valve 1
SP021002 Compressor Bracket
(Metal) 1
SP021003 Rubber Suspension for
Compressor 6
SP021004 CU Compressor
220V 1
SP021005 Valve Cover 1
SP021006 Valve Base 1
SP021007 R.V Spring Analog 1
SP021008 R-Clip 1mm D20mm LR 1
SP021009 Inlet Switch 5
SP021010 1A/250V Fuse
(Slow Blow Type) 10
SP021011 PCBA 1
SP151001 PCBA - Bari 1
SP012004 Top Case 1
SP021013 Bottom Case 1
SP131024 Diaphragm 2
SP021015 Stand Rubber
4244 N.R.H 2
SP021016 3 Pin Cable
(Switch to PCB) 5
SP021017 2 Pin Cable
(Switch to PCB) 5
SP021018 Pressure Sensor Tube 5
SP021019 Connector Tee
Nylon PA66 Black 5
SP021020 Tube PVC Clear
4.5x8 PVC 1
Image Part
Number Description Qty. per box
SP021021 Tube PU 3x5 PU 1
SP021022 Cap Sponge Filter 5
SP021023 Sponge Filter 5
SP021024 Membrane 1
SP012003 Membrane - Bari 1
SP021025 Screw-Motor 10
SP021026 Screw-PCBA 10
SP021027 Screw-Hook 10
SP021028 Screw-Compressor 10
SP021029 Screw-Housing 10
SP021030 Metal Hook 1
SP021031 Hook “Friction Tube” 2
SP021032 Hook Ends 2
SP021033 Hinge Lock 2
SP021034 Water Sealing 10
SP021035 Main Cable
(220V UK) 1
SP025001 CPR Connection
with Tube 1
SP021053 CPR Seal 2
SP021037 3m CPR Tube 3m
SP025003 CPR Connector 1
SP021036 Annual Service Kit 1
11. Replacement Pump Parts
Warning / Fault Cause
Control Unit does
not operate;
no display lights
illuminate
The Control
Unit may not be
attached to a
power source or
a fuse may need
replacing.
1. Check the Control Unit is connected to mains power outlet with the correct voltage.
2. Check the Control Unit is switched on. Switch off and unplug the unit before restarting.
3. Check the mains plug fuse (5 AMP) then check both Control Unit fuses (1 AMP) –
fuses can be released using a screwdriver to push and turn.
Do not try to open the Control Unit. Opening the unit could cause personal injury
or equipment damage.
Ensure the replacement of fuses is carried out accordance with local legislation.
Warning LED C
+ Audible Warning
Mains failure /
Other
See above,
plus:
1. Check the Control Unit is connected to mains power outlet with the correct voltage.
2. Check the Control Unit is switched on. Switch off and unplug the unit before restarting.
3. Check the mains plug fuse (5 AMP) then check both Control Unit fuses (1 AMP) – fuses can be
released using a screwdriver to push and turn.
Do not try to open the Control Unit. Opening the unit could cause personal injury or equipment
damage.
Ensure the replacement of fuses is carried out accordance with local legislation.
Warning LED B
+ Audible Warning
Pressure too low 1. Reset the warning – turn off power and press the Audible Warning mute button.
2. Check that the CPR connector is firmly attached to the Control Unit (located on the left of the
Control Unit case) Check all air hoses along the inside of the mattress – each should be firmly
connected. Check each air cell is securely attached to its connecting air pipe.
3. Check all cells, pipes and hoses for any air leakage.
4. Check that the air filter cover is correctly secured and the air filter is clean.
5. Switch on power.
Warning LED B+C
+ Audible Warning
Pressure too low /
Air pipe kinked
1. Check Blue external umbilical air pipe that is between mattress and CPR connector is not
kinked. twisted or damaged.
2. Check all air hoses along the inside of the mattress – each should be firmly connected.
3. Check each air cell is securely attached to its connecting air pipe.
Warning LED A
+ Audible Warning
Pressure
too high
1. Reset the warning – turn off power and press the Audible Warning button.
2. Disconnect the air hoses to reduce pressure, reconnect when pressure has decreased.
3. Check for twists in the air hoses between Mattress and Control Unit.
Warning LED A+B
+ Audible Warning
Alternating
Mode Failure (no
alternation)
1. Reset the warning – turn off Power and press the Audible Warning mute button.
2. Disconnect the air hoses to reduce pressure – reconnect when pressure has decreased.
Warning LED A,B+C
+ Audible Warning
Initialising Failure 1. Press the Audible Warning mute button to silence the Audible Warning.
2. Check all air hoses along the inside of the mattress – each should be firmly connected.
Check each air cell is securely attached to its connecting air pipe.
3. Check that the CPR connector is firmly attached to the Control Unit
(located on left of control unit casing).
Solution
10. Troubleshooting

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12. Technical Specification
Declaration – electromagnetic immunity
Guidance and manufacturer’s declaration – electromagnetic immunity
The MAT1210001 is intended for use in the electromagnetic environment specified below.
The customer or the user of the system should ensure that it is used in such an environment.
Immunity test IEC 60601
test level
Compliance level Electromagnetic
environment – guidance
Electrostatic discharge (ESD)
IEC 61000-4-2
±6 kV contact
±8 kV air
±6 kV contact
±8 kV air
Floors should be wood,
concrete or ceramic tile.
If floor are covered with
synthetic material, the relative
humidity should be at least
30%.
Electrical fast transient/burst
IEC 61000-4-4
±2 kV for power
supply lines
±1 kV for input/output line(s)
±2 kV for power
supply lines
±1 kV for input/output line(s)
Mains power quality
should be that of a typical
commercial or hospital
environment.
Surge Immunity Test
IEC 61000-4-5
± 1 kV line(s) to line(s) ±1 kV differential mode 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
Voltage Dips
%U T
Period
(Cycles)
Voltage Dips
%U T
Period
(Cycles)
Mains power quality
should be that of a typical
commercial or hospital
environment. If the user of
the Span system requires
continued operation during
power mains interruptions,
it is recommended that the
system be powered from an
uninterruptible power supply
or a battery.
30 25 30 25
60 5 60 5
>95 0.5 >95 0.5
Voltage
Interruption
% U T
Seconds Voltage
Interruption
% U T
Seconds
>95 5 >95 5
Power frequency (50Hz)
magnetic field
IEC 61000-4-8
3 A/m 3 A/m Power frequency magnetic
fields should be at levels
characteristic of a typical
location in a typical
commercial or hospital
environment.
NOTE U T is the a.c. mains voltage prior to application of the test level.
12. Technical Specification
Guidance and manufacturer’s declaration – electromagnetic emission
The MAT1210001 is intended for use in the electromagnetic environment specified below.
The customer or the user of the system should ensure that it is used in such an environment.
Emission test Compliance Electromagnetic environment – guidance
RF emissions
CISPR 11
Group 1 The system uses RF energy only for its internal function.
Therefore, its RF emissions are very low and are not likely
to cause any interference in nearby electronic equipment.
RF emission
CISPR 11
Class B The system is suitable for use in all establishments, including
domestic establishments and those directly connected to
the public low-voltage power supply network that supplies
buildings used for domestic purposes.
Harmonic emissions
IEC 61000-3-2
Class A
Voltage fluctuations/flicker
emissions
IEC 61000-3-3
Complies
Declaration – electromagnetic emissions - for all ME EQUIPMENT and ME SYSTEMS

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12. Technical Specification
Recommended separation distances between portable and mobile RF communications equipment and the MAT1210001
Alternating Control Unit
The MAT1210001 is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled.
The customer or the user of the system can help prevent electromagnetic interference by maintaining a minimum distance between
portable and mobile RF communications equipment (transmitters) and the system as recommended below, according to the maximum
output power of the communications equipment.
Rated maximum output
power of transmitter (W)
Separation distance according to frequency of transmitter (m)
150 KHz to 80 MHz
d = 1.167√P
80 MHz to 800 MHz
d = 1.167√P
800 MHz to 2.5 GHz
d = 2.333
√ P
0.01 0.117 0.117 0.233
0 .1 0.369 0.369 0.738
11.16 7 1.16 7 2.333
10 3.689 3.689 7.379
100 11.667 11.667 23.333
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 and 800 MHz, the separation distance for 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.
Recommended separation distances between portable and mobile RF communications equipment and the EQUIPMENT
or SYSTEM – for ME EQUIPMENT or ME SYSTEM that are not LIFE – SUPPORTING
Guidance and manufacturer’s declaration – electromagnetic immunity
The MAT1210001 is intended for use in the electromagnetic environment specified below.
The customer or the user of the system should ensure that it is used in such an environment.
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
150 kHz to 80 MHz
3 V/m (Professional
Healthcare Environment)
10 V/m (Home
Healthcare Environment)
80 MHz at 2.7 GHz
3 Vrms
10 V/m
Portable and mobile RF communications equipment
should be used no closer to any part of the CT515,
including cables, than the recommended separation
distance calculated from the equation applicable to the
frequency of the transmitter
Recommended separation distance
d = 1.167√P
d = 1.167√P 80 MHz to 800 MHz
d = 2.333√P 800 MHz to 2.5 GHz
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:
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 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 the Span system is used exceeds the applicable RF compliance level above, the system should
be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as
reorienting or relocating the system.
b. Over the frequency range 150kHz to 80MHz, field strengths should be less than 3V/m.
12. Technical Specification
Declaration – electromagnetic immunity – for ME EQUIPMENT and ME SYSTEMS that are not LIFE-SUPPORTING

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16. Detachable/Removable Parts
1. Mattress (Detached from the Control Unit by removing the
CPR connector). Part No. MAT1210061
(or variants of for the size)
2. Electric power cable. (Removed from the Control Unit by
pulling the cable away from the mains inlet on the side of the
Control Unit).
Part No. SP021035
N.B. The battery is an integral part of the PCB and is not
removable or changeable.
Caution
Use of detachable parts not listed is not recommended by
Direct Healthcare Group.
17. Disposal
Please refer to DHG website for recommendations and
responsibilities for disposal within the UK WEEE guidelines.
13. Technical Data
13.1 Control Unit
Serial Number ................... As per label on rear of Control Unit
Electrical Supply. .............................. 220 – 240 volts, 50 Hz
Power Consumption ...............................................10 watts
Fuses ................................................................TA1H 250V
Protection against shock ...........................................Class 2
Noise Level ...............................................Approx. 30 dB (A)
Dimensions ...........................................245 x 160 x 95 mm
Weight...................................................................... 1.7 kg
Service Interval ............................... 12 months / 8760 hours
Expected life ............................................................5 years
Shelf life of parts ......................................................5 years
13.2 Mattress
Serial Number .....................Label on inside of mattress cover
Number of Air Cells ................ 14 Air Cells / 1 Static Foam Cell
Dimensions ......................... 1980 x 880 x 150mm (Nominal)
Weight.....................................................................13.4kg
Expected life of Mattress ...........................................5 years
Shelf life of Mattress parts .........................................5 years
14. Optimum Conditions
(Applies to Mattress and Control Unit)
14.1 Environment Conditions for Use
Transport .................................................... -25˚C – +70˚C
Storage ...................................................... -25˚C – +70˚C
Usage ......................................................... +5˚C – +40˚C
Humidity .......................................................... 10% – 93%
Atmospheric Pressure ........................... 700hPa – 1060hPa
Operational Altitude .............................................. ≤ 2000m
14.2 Exposure
Exposure to direct sunlight, dust, lint and general debris is not
considered to be an issue with the Mercury Advance System.
Mattress Symbols
15. Symbols Guide
General Symbols
Control Unit Symbols
REFER TO
USER MANUAL
SERVICE
REQUIRED
TUMBLE DRY ON LOW
1434
DO NOT IRON
DO NOT USE
SHARP INSTRUMENTS
WASH AT 80˚
REFER TO
USER MANUAL
DO NOT BLEACH
MAXIMUM USER
WEIGHT LIMIT
254 KG / 40 ST
ONES
DOUBLE INSULATED
CLASS II
NO SMOKING
DO NOT USE
PHENOL
DO NOT DRY CLEAN
TYPE BF
APPLIED PART
DO NOT DISPOSE OF
WITH HOUSEHOLD WASTE.
PLEASE REFER TO DHS WEBSITE
THIS IS A STATEMENT THAT
ALERTS THE USER TO THE
POSSIBILITY OF SERIOUS INJURY
OR OTHERWISE ADVERSE
REACTIONS WITH THE USE
OR MISUSE OF THE DEVICE
WARNING
THIS IS A STATEMENT THAT
ALERTS THE USER TO THE
POSSIBILITY OF A PROBLEM
WITH THE SYSTEM ASSOCIATED
WITH ITS USE OR MISUSE
CAUTION
CAUTION
HUMIDITY
LIMITATION
ATMOSPHERIC PRESSURE
LIMITATION
PROTECT FROM HEAT
AND RADIOACTIVE SOURCES
TEMPERATURE
LIMITATION
1434
IP: INGRESS PROTECTION
2: PROTECTION AGAINST FINGERS OR
OTHER OBJECT NOT GREATER THAN
80MM IN LENGTH AND 12MM IN DIAMETER
1: PROTECTION FROM VERTICALLY
DRIPPING WATER
REFER TO
USER MANUAL
SERVICE
REQUIRED
TUMBLE DRY ON LOW
1434
DO NOT IRON
DO NOT USE
SHARP INSTRUMENTS
WASH AT 80˚
REFER TO
USER MANUAL
DO NOT BLEACH
MAXIMUM USER
WEIGHT LIMIT
254 KG / 40 STONES
DOUBLE INSULATED
CLASS II
NO SMOKING
DO NOT USE
PHENOL
DO NOT DRY CLEAN
TYPE BF
APPLIED PART
DO NOT DISPOSE OF
WITH HOUSEHOLD WASTE.
PLEASE REFER TO DHS WEBSITE
THIS IS A STATEMENT THAT
ALERTS THE USER TO THE
POSSIBILITY OF SERIOUS INJURY
OR OTHERWISE ADVERSE
REACTIONS WITH THE USE
OR MISUSE OF THE DEVICE
WARNING
THIS IS A STATEMENT THAT
ALERTS THE USER TO THE
POSSIBILITY OF A PROBLEM
WITH THE SYSTEM ASSOCIATED
WITH ITS USE OR MISUSE
CAUTION
CAUTION
HUMIDITY
LIMITATION
ATMOSPHERIC PRESSURE
LIMITATION
PROTECT FROM HEAT
AND RADIOACTIVE SOURCES
TEMPERATURE
LIMITATION
1434
IP: INGRESS PROTECTION
2: PROTECTION AGAINST FINGERS OR
OTHER OBJECT NOT GREATER THAN
80MM IN LENGTH AND 12MM IN DIAMETER
1: PROTECTION FROM VERTICALLY
DRIPPING WATER
REFER TO
USER MANUAL
SERVICE
REQUIRED
TUMBLE DRY ON LOW
1434
DO NOT IRON
DO NOT USE
SHARP INSTRUMENTS
WASH AT 80˚
REFER TO
USER MANUAL
DO NOT BLEACH
MAXIMUM USER
WEIGHT LIMIT
254 KG / 40 STONES
DOUBLE INSULATED
CLASS II
NO SMOKING
DO NOT USE
PHENOL
DO NOT DRY CLEAN
TYPE BF
APPLIED PART
DO NOT DISPOSE OF
WITH HOUSEHOLD WASTE.
PLEASE REFER TO
DHS WEBSITE
THIS IS A STATEMENT THAT
ALERTS THE USER TO THE
POSSIBILITY OF SERIOUS INJURY
OR OTHERWISE ADVERSE
REACTIONS WITH THE USE
OR MISUSE OF THE DEVICE
WARNING
THIS IS A STATEMENT THAT
ALERTS THE USER TO THE
POSSIBILITY OF A PROBLEM
WITH THE SYSTEM ASSOCIATED
WITH ITS USE OR MISUSE
CAUTION
CAUTION
HUMIDITY
LIMITATION
ATMOSPHERIC PRESSURE
LIMITATION
PROTECT FROM HEAT
AND RADIOACTIVE SOURCES
TEMPERATURE
LIMITATION
1434
IP: INGRESS PROTECTION
2: PROTECTION AGAINST FINGERS OR
OTHER OBJECT NOT GREATER THAN
80MM IN LENGTH AND 12MM IN DIAMETER
1: PROTECTION FROM VERTICALLY
DRIPPING WATER

C26568
DIRECTHEALTHCAREGROUP.COM
LIT-LIT-00019 Issue 14
Date: May 2021
Intelligent Pressure Care
Specialist Seating
Rental & Service Solutions
Direct Healthcare Group
Withey Court, Western Industrial Estate
Caerphilly, United Kingdom
CF83 1BF
T: [phone]
F: [phone]
E: [email protected]
Asia Pacific
Direct Healthcare Group PTY Ltd.
PO Box 562, Wembley
Western Australia 6913
T: [phone]
E: [email protected]