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MD Diagnostics H2 Check Operating Manual

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H
Check
2
Operating Manual
MD Diagnostics Ltd
Slip 7 Annexe
The Historic Dockyard
Chatham
Kent ME4 4TZ
UK
Tel: + 44 (0) 1634 949010
Email:
sales@mdd.org.uk
http://www.mdd.org.uk
Advena Ltd.
Tower Business Centre
nd
2
Flr., Tower Street,
Swatar, BKR 4013, Malta.
Revision 2.9 May 2022
Part No. MAN03 Drawing No. 002-01

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Summary of Contents for MD Diagnostics H2 Check

  • Page 1 Check Operating Manual MD Diagnostics Ltd Slip 7 Annexe The Historic Dockyard Chatham Kent ME4 4TZ Tel: + 44 (0) 1634 949010 Email: sales@mdd.org.uk http://www.mdd.org.uk Advena Ltd. Tower Business Centre Flr., Tower Street, Swatar, BKR 4013, Malta. Revision 2.9 May 2022...

  • Page 2: Table Of Contents

    CONTENTS Package Contents ..................2 Overview ..................... 3 Intended Use ....................3 Operation ....................4 Warning/Cautions ..................6 User Menu ....................6 Calibration ....................7 Operationing mode ..................9 Battery Life ....................10 Power Saving .................... 10 Cleaning ....................11 Servicing ....................

  • Page 3: Package Contents

    Package Contents The H Check is supplied with: 1. H Check (Cat. No. BH02) 2. 1 22 mm plastic mouthpiece adapter for single breath tests(IP01) 3. 3 special two-way valves for multiple breath tests (RB01) 4. 22 mm reducing connector for calibration (CSC01) 5.

  • Page 4: Overview

    Overview The H2 Check is a handheld expired breath monitor for the detection of Hydrogen on the breath. Its measurement system is based on electrochemical sensor technology; this sensor reacts specifically to Hydrogen producing an electrical output. The electrical output is amplified and converted into a displayed output of H2 ppm.

  • Page 5: Operation

    Breathing mode The clinician should insert the T piece (RB01) valved rebreathing assembly into the port of the H2 Check and into the opposite end a SafeBreath™ mouthpiece. The subject should place their lips around the SafeBreath™ and be encouraged to hold the breath during countdown period. When the timer reaches zero it will display the blow icon.
  • Page 6 The maximum reading the H Check can measure is 500 PPM. Any reading above that will be displayed as --- (overflow). After examining the readings, the unit can be switched off using the ON/OFF power key The Hydrogen sensor is sensitive to temperature. The best results are obtained at ambient of 20º...

  • Page 7: Warning/Cautions

    The SafeBreath™ disposable cardboard mouthpieces are single use only. The two-way valve for multiple breath tests is also single use only Please only use accessories supplied by MD Diagnostics to ensure the device performs as intended. User Menu The menu allows the user to either calibrate the unit or set the mode of operation.

  • Page 8: Calibration

    Calibration The device should be recalibrated at least once a month.
  • Page 9 To calibrate the device, perform the following steps: 1. Connect the control valve (Cat. No. CV12) to the 100-ppm gas cylinder (Cat. No. H12100) calibration gas cylinder shown in the diagram above. 2. Connect the short plastic tubing reducing connector (CSC01) 3.

  • Page 10: Operationing Mode

    If the device is not calibrated for a month, the device will beep three times before the countdown starts and will display the following message: - Calibration Expired Please Calibrate the unit The reading is not Guaranteed The message will appear for three seconds and then the device will operate as normal.

  • Page 11: Battery Life

    Battery Life The Lithium 9V PP3 battery should provide at least 30 hours of continuous use. The battery also powers the sensor continuously, so it will have a shelf life of approximately 60 days. When the battery is low, the battery low icon will be displayed for three seconds when the device is switched on.

  • Page 12: Cleaning

    Cleaning with products that contain alcohol may result in permanent contamination of the sensor. Servicing If your unit requires servicing, then please contact your authorised distributor or MD Diagnostics Ltd directly. The H Sensor should be replaced every two years. Email: customercare@mdd.org.uk...

  • Page 13: Specifications

    Specifications Gas Detected Hydrogen Concentration Range 6 - 500 PPM Maximum Overload 2000 PPM Detection Sensor Used Electrochemical fuel cell Sensitivity 1 PPM Accuracy (repeatability) ±5% or ±5 ppm whichever is greater Operating Temperature 5-30 ° Celsius Ideal Operating Temperature 20 °...
  • Page 14 Symbols In accordance with Directive 93/42/EEC 1639 Legal manufacturer EU Representative Type B Device To avoid the potential effects on the environment and human health as a result of the presence of hazardous substances in electrical and electronic equipment, end users of electrical and electronic equipment should understand the meaning of the crossed-out wheeled bin symbol.
  • Page 15 Immunity and Emissions. Guidance and Manufacturer’s Declaration – Electromagnetic Immunity The H2 Check is intended for use in the electromagnetic environment specified below. The customer or the user should assure that it is used in such an environment.
  • Page 16 Guidance and Manufacturer’s Declaration - Electromagnetic Emissions The H2 Check is intended for use in the electromagnetic environment specified below. The customer or the user should assure that it is used in such an environment Emissions Test Compliance Electromagnetic environment guidance...
  • Page 17 Guidance and Manufacturer’s Declaration - Electromagnetic Immunity The H2 Check is intended for use in the electromagnetic environment specified below. The customer or the user should assure that it is used in such an environment. Immunity Test IEC 60601 Test level...
  • Page 18 NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects, and people. 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.

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