MT101 Holter and MT200 Evaluation User Guide Rev B

Sales and Service Information The SCHILLER sales and service centre network is world-wide. For the address of your local distributor, contact your nearest SCHILLER subsidiary. A complete list of all distributors and subsidiaries is provided on our Internet site: http:// www.schiller.ch

Sales information can also be obtained from: sales@schiller.ch

Headquarters Address SCHILLER AG

Article no.: 2.510492 rev.: b Issue date: 29.07.04

Phone: +41 (0) 41 766 42 42

Altgasse 68

Fax: +41 (0) 41 761 08 80

CH-6341 Baar, Switzerland

E-mail: sales@schiller.ch

Web:

www.schiller.ch

MT-101/MT-200

User Guide

Art. no.: 2.510492 rev.: b

Content 1

General and Safety Notes ... 5

1.1

Physician's Responsibility ... 5

1.2

Intended Use ... 5

1.3

Organisational Measures ... 5

1.4

Operational Precautions ... 6

1.5

Safety Equipment ... 6

1.6

Precautions for Operation with other Devices ... 6

1.7

Maintenance ... 6

1.8

Safety Symbols and Pictograms ... 7

2

Introduction ... 8

2.1

MT-101/200 Range of Application ... 8

2.2

MT-101 Components and Operation ... 10

2.3

Operating and Display Elements ... 11

2.3.1 2.3.2 2.3.3 2.3.4

Switching on... 11 Switching off... 11 Battery display... 11 Status display... 11

2.4

MT-101 Menu Structure ... 12

2.4.1

Menu Overview ... 12

2.5

Initial Operation ... 13

2.5.1 2.5.2

Unpacking ... 13 Inserting/changing the battery... 13

3

Preparing a Holter Recording ... 14

3.1

Position of the Electrodes ... 14

3.2

Commencing a Holter Recording... 16

3.2.1

During the Recording and Patient Information ... 17

3.3

Taking an Extended Recording (Longer than 24 hours). 17

4

Transferring a Recording to the PC ... 18

4.1

Data Transmission to PC from MT-101... 18

4.2

Data transmission to PC with Memory Card Reader... 18

5

Displaying an ECG Signal ... 19

5.1

Starting a Recording from the MT-200 Program... 19

5.1.1

Pacemaker ... 21

5.2

Transmission Problems ... 22

5.2.1

Checking the connection... 23

6

Viewing and Editing a Recording ... 24

6.1

Icons ... 24

6.1.1 6.1.2

View icons ... 25 Function icons ... 26

Page 1

MT-101/MT-200

User Guide

6.1.3

Tool icons in rhythm and zoom views ... 27

6.2

Accessing and Opening Files ... 28

6.3

Event & Zoom Views ... 29

6.4

Analysis Summary ... 31

6.5

Event Samples View ... 33

6.6

ECG View... 35

6.6.1 6.6.2 6.6.3

Selecting Channels for Display ... 36 Selecting Channels for Analysis... 36 Auto Scrolling ... 36

6.7

Event Chart ... 37

6.8

Heart Rate View ... 38

6.9

ST Trend View ... 39

6.10

Template Matching ... 41

6.10.1 Detailed Overview of the Template Classes ... 43

6.11

Pacemaker Templates ... 45

6.11.1 Template classes ... 46

6.12

Heart Rate Variability ... 49

6.13

Heart Rate Trend... 51

6.13.1 Jumping to the max/min Heart Rate or max/min NN Interval... 51 6.13.2 Redefining the Max/Min Heart Rate and NN Interval ... 51

6.14

Reclassifying/Editing a QRS Complex ... 52

6.15

Analysing/Re-analysing the Recording ... 54

6.16

Analysing Options ... 56

6.16.1 6.16.2 6.16.3 6.16.4 6.16.5

Arrhythmias ... 56 Manually Defining Arrhythmias ... 56 ST-episodes ... 57 Templates ... 57 Mode ... 57

6.17

Editing Patient Data/Recording ... 58

6.18

Printing ... 61

Art. no.: 2.510492 rev.: b

6.18.1 Print preview / Printing a specific page ... 61 6.18.2 Obtaining a printout:... 62 6.18.3 Printing a selected half hour ECG segment ... 62

7

Miscellaneous Functions ... 63

7.1

E-Mail and PDF Functions ... 63

7.1.1 7.1.2

PDF files with Acrobat Reader ... 63 Editing PDF files... 63

7.2

Saving a Recording ... 64

7.2.1 7.2.2 7.2.3 7.2.4

Saving a recording in MT-200 or PDF format ... 64 Sending a recording by e-mail ... 65 Importing recordings ... 65 Exporting recordings ... 65

7.3

Deleting a Recording... 66

7.4

Accelerator Keys ... 67

8

System Settings and Options ... 68

8.1

Print Formats ... 68

8.1.1 8.1.2 8.1.3

Templates ... 68 Event samples... 69 Full disclosure (1, 2 or 3 channel) ... 69

Page 2

Art. no.: 2.510492 rev.: b

MT-101/MT-200

User Guide

8.1.4

User-defined print formats... 70

8.2

Heart Rate Trend... 72

8.3

Amplitude/Speed ... 73

8.4

Pacemaker Templates ... 74

8.5

System Settings... 75

8.5.1 8.5.2 8.5.3 8.5.4 8.5.5 8.5.6 8.5.7

Print setup ... 75 Units and language ... 75 Directories ... 76 Data storage mode (auto delete) ... 76 USB / AT-card Connection and Test transmission Mode... 76 GDT... 77 Office Address... 77

8.6

User Identification ... 78

9

Maintenance ... 79

9.1

Visual Inspection ... 79

9.2

Cleaning the device and cable assemblies ... 80

9.2.1

Cleaning the device, electrode cable, and USB cable ... 80

10

Installation ... 81

10.1

System Requirements ... 81

10.2

Installation of MT-200 General Network License ... 81

10.3

Network Licence Option ... 81

10.4

Unpacking ... 81

10.5

Installing the Hard-Lock Key ... 83

10.6

Installing the MT-200 Program from the CD... 84

10.7

Installing a USB Driver... 84

11

Technical Data ... 85

11.1

Microvit MT-101 ... 85

11.2

MT-200 Software ... 86

12

Options, Accessories and Disposables 87

12.1

Complete Systems ... 87

12.1.1 Software and Hardware Options ... 87 12.1.2 Accessories ECG Holter system ... 88

13

Patient Diary ... 89

13.1

Schiller CD ... 89

14

Index ... 93

Page 3

Art. no.: 2.510492 rev.: b

MT-101/MT-200

Page 4

MT-101/MT-200

User Guide

General and Safety Notes Physician's Responsibility

1 1.1

1 General and Safety Notes 1.1

Art. no.: 2.510492 rev.: b

1.2

1.3

Physician's Responsibility V

This Holter Recorder and PC program is provided for the exclusive use of qualified physicians or trained personnel under their direct supervision.

V

The numerical and graphical results as well as any interpretation suggested by the device must be examined with respect to the patient's overall clinical condition and the quality of the recorded data.

V

The responsibilities of the personnel for the operation and maintenance of the device must be specified.

V

Make sure that the personnel have read and understood the user guide, and especially these safety notes.

V

Damaged or missing parts must be replaced immediately.

V

It is the owner's responsibility that the valid regulations for safety and prevention of accidents are observed.

Intended Use V

The MT-101/MT-200 Holter and evaluation software is designed to record longterm electrocardiograms for the diagnosis of symptomatic and asymptomatic arrhythmias, i.e. bradycardia or tachycardia, and for patients after resuscitation or suffering from diseases such as cardiomyopathy, high blood pressure or long QT syndrome.

V

There is no danger when using the device for a patient with a pacemaker fitted.

V

Always observe the indicated technical data when operating the device.

V

The device is not designed for sterile use.

V

Do not use the device in areas where there is any danger of explosion or in the presence of flammable gases such as anaesthetic agents.

V

The device is CF classified. It is defibrillation protected when the original SCHILLER patient cable is used. However, as a safety precaution when possible, remove the electrodes before defibrillation.

V

The device is not designed for direct cardiac application.

Organisational Measures V

Before using the device, ensure that an introduction regarding its functions and the safety precautions has been provided by a product representative.

V

Always store the user guide near the device. Make sure that the user guide is always complete and readable.

V

Observe the safety notes for devices connected to the MT-101/MT-200.

V

In addition to this user guide, also legal and other binding regulations for the prevention of accidents and for environment protection must be observed.

Page 5

1 1.4

General and Safety Notes Operational Precautions

1.4

MT-101/MT-200

Operational Precautions V This user guide, and especially these safety notes, must be read and observed. V Do not touch the unit casing during defibrillation. V It must be ensured that neither the patient nor the electrodes come into contact with other persons or conducting objects (even if these are earthed). V Changes, including operators behaviour, affecting safety must be immediately reported to the responsible person.

1.5

Safety Equipment V Operating this device without safety equipment or with damaged cables can endanger the health or life of the patient or the person operating the device! For this reason: – Damaged cables and connections must immediately be replaced.

1.6

Precautions for Operation with other Devices V Use only accessories and other parts recommended or supplied by SCHILLER AG. The use of other than recommended or supplied parts may result in injury, inaccurate information and/or damage to the device. V Accessory equipment connected to the analogue and digital interfaces must be certified according to the respective IEC standards (e.g. IEC/EN 60950 for data processing equipment and IEC/EN 60601-1 for medical equipment). Furthermore, all configurations shall comply with the valid version of the system standard IEC/EN 60601-1-1. Everyone who connects additional equipment to the signal input part or signal output part configures a medical system, and is therefore responsible that the system complies with the requirements of the valid version of the system standard IEC/EN 60601-1-1. If in doubt, consult the technical service department or your local representative. V Special care must be exercised when the unit is used with high frequency equipment. To prevent the display of incorrect ECG signals, only use special SCHILLER ECG cables protected against high frequency radiation. V There is no danger when using this device simultaneously with electrical stimulation equipment. However, the stimulation units should only be used at a sufficient distance from the electrodes. If in doubt, disconnect the patient from the recorder.

1.7

Maintenance V Do not use high temperature sterilisation processes (such as autoclaving). Do not use e-beam or gamma radiation sterilisation. V Do not use aggressive or abrasive cleaners. V Do not, under any circumstances, immerse the device or cable assemblies in liquid.

Page 6

MT-101/MT-200

User Guide

1.8

General and Safety Notes Safety Symbols and Pictograms

1 1.8

Safety Symbols and Pictograms The safety level is classified according ANSI Z535.4. The following overview shows the safety symbols and pictograms used in this handbook.

For a direct danger which could lead to severe personal injury or to death.

For a possibly dangerous situation, which could lead to bodily injury or to death.

For a possibly dangerous situation which could lead to personal injury. This symbol is also used to indicate possible damage to property.

For general safety notes as listed in this chapter. When this symbol is displayed on the unit, it means that the user should refer to the user guide.

Note for possible dangerous situations which could lead to damage to property or system failure. Important or helpful user information.

Reference to other guidelines.

Potential equalization.

Art. no.: 2.510492 rev.: b

CF symbol. This unit is classified safe for direct cardiac application. Only defibrillation protected when used with the original SCHILLER patient cable.

The unit/component can be recycled.

Notified body of the CE certification (TÜV P.S.).

Is intended for infants weighing less then 10 kg.

Page 7

2 2.1

Introduction MT-101/200 Range of Application

MT-101/MT-200

2 Introduction The SCHILLER Holter system comprises two main parts. The MT-101 Holter recorder and the MT-200 program. Recordings made by the MT-101 unit are downloaded to the MT-200 for display, storage and analysis.

2.1

MT-101/200 Range of Application The MICROVIT MT-101 Holter is designed to record long-term electrocardiograms for the diagnosis of symptomatic and asymptomatic arrhythmias, i.e. bradycardia and tachycardia, and for patients after resuscitation or suffering from diseases such as cardiomyopathy, high blood pressure or long QT syndrome. The recording can also be used to help examine palpitations or syncopes and dizziness, to verify medical therapies, and to carry out subsequent treatments after a bypass operation or a PTCA. The ST segment analysis of an ECG recording allows the detection of a symptomatic or asymptomatic ischemia. Good signal quality is vital for the success of a recording. The built-in Holter display, enables the ECG signal quality to be checked before starting, and the recording commenced directly from the device. This gives a high degree of reliability. At the end of a recording, the data is transferred from the Holter recorder to a PC. The transfer of a recording typically only requires a few minutes.

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S W I T Z E R L A N D

The MT-200 is a PC based ECG evaluation program. An ECG is recorded using the SCHILLER MICROVIT MT-101 Holter. Two or 3-channel ECG recordings can be recorded over a period up to 72 hours. After the transfer of the recording data into the MT-200 program, the data can be displayed, saved, analysed and printed. The MT200 program enables quick access to the recording data and displays the ECG and analysis data in a logical and understandable way for diagnosis.

MT-101/MT-200

User Guide

Introduction MT-101/200 Range of Application

2 2.1

The MT-200 includes analysis of the following: • • • • • • •

supraventricular extrasystoles couplets triplets chain of four or more SVES (SV tach) bigeminy trigeminy

Sinus Rhythm Alterations

• • • •

tachycardia bradycardia pause abs. arrhythmias

Ventricular Arrhythmias

• • • • • • • •

ventricular extrasystoles couplets (VES chain) triplets chain of four or more VES (V tach) bigeminy trigeminy R on T

Heart Rate Trend

• calculated over 4, 8 or 16 beats and • averaged over 1 to 10 minutes

ST Trend

• setting of the distance from J-point for ST measurement (J-point + 10 to 100 ms) • episodes detected separately for channel 1, and/or channel 2, and/or channel 3 when ST level is exceeded (1 to 3 mm)

Pacemaker

• 6 pacemaker templates • heart rate variability • tachograms and tabular presentation after analysis of the recording

Art. no.: 2.510492 rev.: b

Supraventricular Arrhythmias

Page 9

2 2.2

Introduction MT-101 Components and Operation

2.2

MT-101/MT-200

MT-101 Components and Operation Front (1) Microphone for patient identification (2) Patient cable connection (3) USB-cable connection (4) LCD display (5) Programming button (6) On/off and programming button (7) Loudspeaker

Back (8) Battery housing (9) SD memory card

Programming The MT-101 Holter can be programmed simply using the two keys following the menu guidance on the LCD display.

Data transmission The ECG data transmission to the PC can be realised in two ways: – directly via standard USB connection (3) – by removing the memory card (9) from the battery housing and transmitting the data to the PC by means of a memory card reader. The advantage resulting from this procedure is that the Holter can be equipped with a new memory card and is immediately available for the next patient.

Page 10

MT-101/MT-200

Introduction Operating and Display Elements

User Guide

2.3

2 2.3

Operating and Display Elements The Microvit MT-101 is operated with the two buttons and the menu guidance on the LCD. The green key with the switching-on symbol is used additionally to switch the device on and off.

Functions green button: On/off NEXT EVENT SPEED 1x - 3x NO

2.3.1

Status

15:45

NEXT

OK

Functions of the blue button: OK CHANGE EVENT YES CHANN2/3

Switching on Press the green button. The display shows the name and version number of the device before the main menu is displayed.

2.3.2

Switching off Keep the green button pressed for five seconds. When the button is released, the device is switched off. If an ECG recording is running, first stop it following the same procedure. If no recording is running, the device will be switched off automatically after five minutes.

Art. no.: 2.510492 rev.: b

2.3.3

Battery display The battery symbol indicates the battery's load status. If the battery is full, the symbol is solid - also see para. 2.5.2 Inserting/changing the battery, page 13.

2.3.4

Status display The operating status is displayed in the left upper corner of the LCD. REC for recording, USB if the MT-101 is connected to a PC, USB* for data transmission to a PC.

Page 11

2 2.4

Introduction MT-101 Menu Structure

2.4

MT-101/MT-200

MT-101 Menu Structure The menus are selected with the green button (NEXT). A selected menu is opened with the blue button. Depending on the called menu, the button functions may change.)

MAIN

15:45 RECORD START RECORD SETUP LAST RECORD SYSTEM INFO SYSTEM SETUP

NEXT

2.4.1

OK

Menu Overview

Main Menu

Sub-Menu 1

Value/Info

Sub-Menu 2

Value/Info

RECORD START

ECG Signal

Chan1

speed

x1, x2 or x3

ECG Signal

Chan2

speed

x1, x2 or x3

ECG Signal

Chan3

speed

x1, x2 or x3

Start record?

Yes/No

ECG-recording startYes ed!

> Event button

Sub-Menu 3

Value/Info

Event saved!

> Record info > Stop recording? RECORD SETUP

Patient ID

> Voice-record

>

> Play ID PM Det.*

On/off

Duration

24, 48, 72

ECG recording Main stopped

>

Start

Start Recording

Stop

Stop Recording

Stop

Stop Playing

Sampling 125 Hz LAST RECORD

Patient ID* Events*

SYSTEM INFO

>

Events

SerNo. Version Bat Type SD-Card

SYSTEM SETUP

Contrast

1...8

Language

ENG ...

Bat

Alkaline NiMH2100

Date/time

> Year

2000...2099

> Month

01...12

> Day

01...31

> Hour

00.23

> Minute

00...59

* To record pacemaker pulses it is important that ‘PM Det‘ is set to on - see para. 5.1.1 Pacemaker, page 21.

Page 12

MT-101/MT-200

User Guide

2.5

Initial Operation

2.5.1

Unpacking

Introduction Initial Operation

2 2.5

Check that all ordered items are present and free of shipping damage. Immediately report any damage to SCHILLER AG.

2.5.2

Inserting/changing the battery Open the battery compartment and insert the supplied battery or accumulator. Observe the polarity!

Note The delivered battery is of alkaline type AA/LR6. If you use an NiMH 2100 mAh accumulator, make sure that BAT NiHM is selected in the SYSTEM SETUP menu. If the wrong type is selected, the battery capacity will not be displayed correctly.

On closing the battery cover, pay attention that the two lugs (A) are inserted correctly. The cover is closed in the direction indicated by the arrow (B). In order to engage the cover, press it down (at position C) until it clicks in place.

V V

Attention - danger of explosion Do not dispose of batteries by fire or incinerator. Attention - danger of acid burn Do not open the battery casing.

Art. no.: 2.510492 rev.: b

Only dispose of batteries in official recycling centres or municipally approved areas.

Full

Half full Empty

Switch on the device and check the battery charge capacity. The battery symbol must be fully black. This corresponds to a maximum recording time of 24 hours. An audible and visual indication is given during recording when battery capacity is limited. The time will vary according to the type of battery installed (alkaline or NiMH2100) - but is normally between 1 and 2 hours. When the alarm is given and recording is to be continued, we recommend that the battery is replaced at the first opportunity - see para. 2.5.2 Inserting/changing the battery, page 13 When recording is stopped because of low battery capacity, and the battery is replaced within 5 hours of the unit switching off, the recording will continue - see para. 3.2.1 During the Recording and Patient Information, page 17.

Page 13

3 3.1

Preparing a Holter Recording Position of the Electrodes

MT-101/MT-200

3 Preparing a Holter Recording 3.1

Position of the Electrodes Typical electrode position for a 4-lead cable (2-channel recording) The recommended electrode placement for a 2-channel recording is shown below. Channel 1 positive (K1+) = green Channel 1 negative (K1-) = red Channel 2 positive (K2+) = white Channel 2 negative (K2-) = yellow

Typical electrode placement for a 6-lead cable (3-channel recording) The recommended electrode placement for a 3-channel recording is shown below.

K1K2 + K3 -

1 2 3 4 5

K2 K3 + K1 +

Page 14

Channel 1 positive (K1+) = green Channel 1 negative (K1-) = red Channel 2 positive (K2+) = white Channel 2 negative (K2-) = yellow Channel 3 positive (K3+) = orange (positioned on the patient’s back) Channel 3 negative (K3-) = blue

MT-101/MT-200

User Guide

Preparing a Holter Recording Position of the Electrodes

3 3.1

Electrode Placement Form a stress loop in every cable and secure them with adhesive strips to relieve the electrodes (strain relief). In order to ensure good data evaluation, the ECG amplitudes should be examined in the sitting, lying and standing position of the patient.

Art. no.: 2.510492 rev.: b

Holter ECGs use a bipolar lead system (one positive and one negative lead) for each channel. Channel 1 approximates to modified lead V5, channel 2 approximates to modified lead V2 and channel 3 approximates to modified lead V3.

Channel 1

Place the RED negative electrode under the clavicle on the right Sternal margin. Place the GREEN positive electrode in the fifth left intercostal space on the anterior axillary line (position approximately equates to V5).

Channel 2

Place the YELLOW negative electrode under the clavicle on the left sternal margin. Place the WHITE positive electrode in the fourth left intercostal space on the anterior axillary line (position approximately equates to V2).

Channel 3

Place the BLUE negative electrode in the fourth left intercostal space near the sternum. Place the ORANGE positive electrode on the back in the fifth left intercostal space, between the spine and the scapula (position approximately equates to V3). • The above electrode placement is suggested; other electrode configurations are possible. • Ensure that the QRS complex is bigger than the T wave. • Ensure that the trace is larger than 1mV. See 1mV reference (4) on following page. • To avoid artifacts in women patients, the red and white electrodes can be placed lower if necessary.

Page 15

3 3.2

Preparing a Holter Recording Commencing a Holter Recording

3.2

MT-101/MT-200

Commencing a Holter Recording The ECG recording can be started without the MT-200 PC software. The most important data can be entered in the MT-101 directly, and the ECG signal examined directly on the LCD.

A recording can also be started from the MT-200 program where all channels can be viewed simultaneously before commencing - see para. 5.1 Starting a Recording from the MT-200 Program, page 19.

Preparing the patient 3

1.

Attach electrodes to patient.

Setting up the Holter MT-101 2.

Press button (1) to switch on MT-101. Check battery charge capacity. If the symbol is only half filled out, change battery. 3. Choose NEXT (1) to select RECORD SETUP menu to make recording settings: – Patient ID - record patient ID using the microphone and playback facility – Select Pacemaker detection on or off - see para. 5.1.1 Pacemaker, page 21 – Define period of recording - 24, 48 or 72 hours

ECG

4 SPEED

x1

5 1

Checking the ECG signal 2

4. 5.

Connect patient cable to MT-101 (3). Confirm RECORD START menu with “OK” (2) and check ECG signal Channel 1. Press CHAN2/3 to select and check channel 2/3. Press “OK” (2) to access START RECORDING panel. The signal's max. amplitude corresponds to the height of the moving line (5). The 1mV amplitude reference is the vertical line on the left (4). Ensure the signal amplitude is greater than 1mV.

Starting an ECG recording 6.

Confirm the start of the recording with YES (2).

Stopping the ECG recording 7.

Press and hold button (1) for 5 seconds. You will be prompted if you wish to stop the recording. Confirm with YES (2). NOTE: If no confirmation is received to cease recording (button (2) pressed), within 15 seconds, the unit returns to recording mode.

Switching off the MT-101 8. 9.

If the unit is recording, first stop the recording step (7). Ensure the main menu is displayed and that the cursor is at the RECORD START position. 10. Press and hold button (1) for 5 seconds to switch the device off.

Page 16

Preparing a Holter Recording User Guide Taking an Extended Recording (Longer than 24 hours)

MT-101/MT-200

3.2.1

3 3.3

During the Recording and Patient Information Inform the patient about the use of the MT-101.

Event record • Every event should be entered in the diary, together with the time, the activities at the time of occurrence and the symptoms. • Instruct the patient to press the EVENT button at any time during the recording to register an event as follows: 1. Press button (1 or 2). 2. Record event in the patient diary. Note: The template for the patient diary is stored on the software CD as Word or pdf file. An example is given at the end of the book - see para. 13 Patient Diary, page 89.

No ECG signal or lead-off 1. 2. 3.

Check cable connection on device. Check cable connection on electrodes. Re-attach electrodes to body.

General information The device is not waterproof. The patient should be advised not to take a bath or shower during the recording.

Battery replacement during the recording. Change battery when an audible indication is given and the message ‘BATTERY LOW - change battery’ is displayed the MT-101. - this will occur approximately 1-2 hours before switch off (dependent on battery type). Proceed as follows: REC

8:56

1.

ECG recording (00:02)

Art. no.: 2.510492 rev.: b

1

Press EVENT button (1 or 2) and make an entry in your diary.

– DO NOT SWITCH THE DEVICE OFF 2. Open battery compartment and replace battery with a new one of the same type. Observe correct polarity, and replace battery cover - see para. 2.5.2 Inserting/ changing the battery, page 13. 3. Switch the device on by pressing button (1). After a few seconds the message ‘ECG recording restart’ is displayed while the unit re-initialises. This is followed by the message ‘ECG recording’ and ECG recording automatically resumes. When a recording is stopped (because of low battery capacity or because of battery removal), the battery must be replaced within 5 hours of the unit switching off for the recording to continue.

2

3.3

Taking an Extended Recording (Longer than 24 hours) The MT-101 can record up to 72 hours of Holter data if required. To make a recording longer than 24 hours, the battery in the MT-101 must be changed as detailed above. An audible alarm and visual indication will be given when the battery must be changed.

Page 17

4 4.1

Transferring a Recording to the PC Data Transmission to PC from MT-101

MT-101/MT-200

4 Transferring a Recording to the PC 4.1

Data Transmission to PC from MT-101 1.

Connect the USB cable between the MT-101 and PC (see picture below - the rubber cover on the MT-101 must be removed - the message "MT-101 connected to PC" appears. 2. Start MT-200 software on PC. 3. Click on the data transfer icon and select "Request Holter Data". The dialogue box shows the transferred data in per cent. The data is stored automatically. If no patient data is entered, the file will be saved with the date and time.

4.2

Data transmission to PC with Memory Card Reader 1. 2. 3. 4.

Connect the card reader to the USB. The memory card reader appears as a physical drive on your desktop. The path name for this drive must be entered in the menu Option/System/Path/ SD-Card path - see para. 8.5.3 Directories, page 76. Insert the memory card in the card reader or PCMCIA adapter. Execute the function “Read SD-Card”. The data is read into the indicated path (for path location see point 2)

Data can also be imported from an SD card - see para. 7.2.3 Importing recordings, page 65

Page 18