Nidek Medical Mark 5 Nuvo Lite Series Instructions For Use Manual Download Page 3

______________________________________________________________________________________________________________ 

2010-8401CE-E 

February 2018 

Page 3 of 8 

EN 

Use the power cord provided. 
Check that the electrical characteristics of the power 
outlet used match those indicated on the manufacturer’s 

technical label (Fig 2-7) on the rear panel of the device. 
This unit may be equipped with a polarized plug. That is 
one blade wider than the other. If it does not fit into the 

outlet, reverse the plug. If it still does not fit, contact a 

qualified electrician. Do not defeat this safety feature. 

2.3 

Alarms and Safety Features 

The 

device

has an audible alarm to warn the user of 

problems. In order that the alarm may be heard, the 

maximum distance that the user can move away from it 
must be determined to suit the surrounding noise level. 

No  voltage  detection:

In  the  event  of  a  loss  of  mains 

power, an intermittent audible alarm is activated and the 
green light is no longer illuminated.  

Test alarm by actuating the Power Switch (Fig 1-3) when 
the mains cable is not plugged into the power outlet. 

Oxygen  Concentration  Status  Indicator: 

The  oxygen 

concentration monitor is an electronic module capable of 
checking the effective oxygen concentration supplied by 
the  concentrator.  The  oxygen  monitor  measures  the 
concentration and activates an audible and visual alarm if 
it  falls  below  the  alarm  set  point  percentage.  When  the 
device is started, the indicator lights (Fig 1-5) located on 
the front panel operate as described below. 

Green  indicator:

This  light  indicates  that  power  is 

applied to the concentrator and that it is ready to provide 
oxygen enriched air to the patient.  

On initial power up, this indicator light will flash green 
until the device has reached normal operating conditions.  

This should happen within approximately 2 minutes. 

Yellow  indicator:

This  light  and  a  continuous  audible 

alarm  will activate  when  the  oxygen concentration level 
falls below the set point. 

Devices manufactured prior to 2018 included a red indicator light. 

No special maintenance is required. The alarm set-point is 
factory set and the setting cannot be adjusted.  
All OCSI models are set at 85% ± 3%.

Blocked Cannula detection:

 If supplied, the device has a 

Blockage  Alarm.  A  continuous  audible  alarm  and  both 
indicator  lights  will  be  lit  immediately  in  the  event  the 
flow of oxygen to patient becomes blocked. 

Malfunction  detection:

  If  low  pressure  occurs  due  to  a 

mechanical  failure,  the  indicator  light  will  flash  yellow 
and a continuous audible alarm will actuate.  

If any of the above alarm conditions occur, press the 
Power Switch (Fig 1-3) to the “O” (OFF) position.    
Call your equipment supplier to service the device. 

Thermal safety:

 The compressor motor is protected by a 

thermal switch situated in the stator winding 

(145  ± 5°  C). 

One tubeaxial fan cools the compressor compartment. 

Electrical protection:  

A  5A  circuit  breaker  is  incorporated  into  the  front 
cabinet of all 230V models 

A  10A  circuit  breaker  is  incorporated  into  the  front 
cabinet of all 115V models 

Class  II  devices  with  insulated  casings  (EN60601-1 
standard)

Safety valve: 

This is fitted on the compressor outlet and 

is calibrated to 3.4 bar (50 psig). 

Fire Break: 

This device is fitted with a metal fire break 

at the Oxygen Product Outlet (Fig 1-2).  This break will 
keep fire from entering the device. 

2.4 

Device Performance and Specifications 

The  performance  of  the  device  (especially  the  oxygen 
concentration)  is  quoted  at  21°C  (70°F)  and  one 
atmosphere.  The  specifications  may  change  with 
temperature and altitude.

Model 

525 

925 

535 

935 

Description 

5 LPM 

115V 

5 LPM 

230V 

3 LPM 

115V 

3 LPM 

230V 

Frequency 

60 Hz 

50 Hz 

60Hz 

50 Hz 

Average 
Power 

330 Watts 

300 Watts 

210 Watts 

180 Watts 

Protection 
Class 

Class II 

Mains 

Protection 

10A 

5A 

5A 

5A 

Average 
Oxygen 

Content  

At 2 LPM  

> 90% 

At 2 LPM  

> 90% 

Average 
Oxygen 

Content 

At 5 LPM 

87% to 95.5% 

At 3 LPM 

87% to 95.5% 

Liter Flow 

0.125 to 5 LPM 

0.125 to 3 LPM 

Outlet 
Pressure 

7 Psig 

7 Psig 

Dimensions 
(L x W x H) 

36 x 23 x 58.5 cm (14 x 9 x 23 in.) 

Weight 

14.5 kg  (32 lbs.)* 

Noise Level 

< 58 dBA 

* Weight dependent on model and features

In compliance with EN ISO 80601-2-69, the flow supplied is 
equal to the flow set on the flowmeter, accurate to within 

± 10% or 200 ml/min, whichever is greater.

The variation of the maximum recommended flow does not 

exceed ± 10 % of the indicated value when a back pressure 
of 6.9 kPa (1 psig) is applied to the output of the device. 

Materials in direct or indirect contact with the patient 

Concentrator enclosure 

ABS/Polycarbonate 

Printed labels 

Polycarbonate 

Power switch (Fig 1-3) 

Nylon 

Oxygen product outlet (Fig 1-2)  SS, brass or aluminum 

Summary of Contents for Mark 5 Nuvo Lite Series

Page 1: ... flammable products on the device the administration accessory cannula or the patient s face neck Only persons who have read and understood this entire manual should be allowed to operate the device CONTRAINDICATIONS Those who continue to smoke because of the increased fire risk and the probability that the poorer prognosis by smoking will offset the treatment benefit Only Federal Law US restricts...

Page 2: ...e used when your settings were determined While undergoing oxygen therapy if you feel discomfort or experience a medical emergency seek medical assistance immediately The Mark 5 Nuvo Lite Family begins their operation with air being pulled into the external air intake filter This filtered air enters the compressor via a suction resonator and fine filter Pressurized air then exits the compressor an...

Page 3: ...pplied the device has a Blockage Alarm A continuous audible alarm and both indicator lights will be lit immediately in the event the flow of oxygen to patient becomes blocked Malfunction detection If low pressure occurs due to a mechanical failure the indicator light will flash yellow and a continuous audible alarm will actuate If any of the above alarm conditions occur press the Power Switch Fig ...

Page 4: ...mance and void the manufacturer s responsibility Spare Parts Part Ref Cabinet air filter Fig 2 9 8400 1025 Inlet Filter Under Fig 2 9 8400 1180 Ventilation Grill Fig 2 9 8400 0108 Casters 8300 8068 Mains Cable Wrap 8400 0022 Please consult the Nuvo Lite Maintenance Manual PN 2010 8405 for instructions on replacing any above spare parts 3 UNPACKING AND INSPECTION The Oxygen Concentrator is packaged...

Page 5: ...s or other by placing the orifice s on the surface of a glass of water The flow should disturb the surface of the water 6 Adjust the nasal cannula to suit your face 4 3 Shut Down At the end of the treatment press the Power Switch Fig 1 3 to the O OFF position to stop the device The oxygen enriched air flow continues for approximately one minute after the device is stopped Make sure during operatio...

Page 6: ...vidual product markings for disposal Furthermore as part of the marking directive 93 42 EEC the serial number of the device disposed of must be sent to Nidek Medical if the unit has the marking 7 TROUBLESHOOTING Observations Possible Causes Solutions The I O ON OFF button is in the I ON position but the device does not operate Mains cable Fig 2 8 is not correctly plugged into the wall outlet Check...

Page 7: ...______________________________________________________________________________________________________________ 2010 8401CE E February 2018 Page 7 of 8 EN 8 EMC INFORMATION ...

Page 8: ...eriodic servicing by an approved technician do not comply with the manufacturer s specifications the manufacturer is not responsible in the event of an accident or non performance This device complies with the requirements of the FDA Quality System Regulation and 93 42 EEC European directive but its operation may be affected by other devices being used nearby such as diathermy and high frequency e...

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