Smartdop 45 Operation Manual Jan 2008

TABLE OF CONTENTS Cautions 1.

Introduction 1-1. Features... 2 1-2. Clinical Applications... 3 1-3. Probe Selection... 4 1-4. Accessories... 4

2.

Quick Start 2-1. Turning the Unit On / Off... 5 2-2. Charging / Discharging Battery... 6 2-3. Checking Battery Level... 7 2-4. Setting Printer Paper... 8 2-5. Measuring Blood Velocity... 9 2-6. Measuring Fetal Heart Rate... 11

3.

Appearance and Mode Settings 3-1. Operating Controls... 13 3-2. Mode Settings... 16 3-2-1. Basic Modes... 16 3-2-2. Menu... 17 a. Menu Structure... 17 b. Menu Operation... 18 c. Menu for Blood Velocity Measurement Mode... 19 d. Menu for Blood Velocity Freeze Mode... 20 e. Menu for Fetal Heart Rate Mode (Measurement & Freeze) 21 3-2-3. Mode Setting Details... 22 a. MEMORY - STORE... 22 b. MEMORY - READ... 23 c. MEMORY - CLEAR... 23 d. Baseline MODE (Compound / Separate)... 24 e. TIME scale (Normal / Slow)... 24 f. DIR (Flow direction)... 24 g. PATIENT data input... 25 h. DISP / OTHERS - DISP (Waveform / Data)... 26 i. UPPER limit for FHR... 27 J. LOWER limit for FHR... 27 k. OTHERS - LANGUAGE... 27 l. OTHERS - UNIT (cm/s / kHz)... 27 m. OTHERS - FILTER (Arterial / Venous filter)... 28 n. OTHERS - SMOOTH (Smoothing filter)... 28 o. OTHERS - CAL (Calibration)... 28

p. OTHERS - AUTO-OFF (Automatic shut-off)... 28 q. OTHERS - KEYBOARD (External)... 28 r. OTHERS - P.ID PRT (Patient data print)... 29 s. OTHERS - PRB-KEY (Probe button function)... 29 t. OTHERS - DATE... 29 u. OTHERS - PRINT (Printer activation)... 29 3-3. LCD Display... 30 3-3-1. Blood Velocity Mode... 30 3-3-2. Fetal Heart Rate (FHR) Mode... 31 3-3-3. Battery Indicators... 33 3-4. Printing Waveforms & Data... 34 3-5. Numerical Data... 36 3-6. External Outputs... 37 3-7. Symbol List... 37 4.

Maintenance 4-1. Performance Check Procedures by User... 38 4-2. Cleaning... 38 4-3. Warranty... 38

5.

Options 5-1. Optional Accessories... 39 5-2. Photoplethysmograph... 39 5-2-1. PPG (Photoplethysmography) Probes... 40 5-2-2. Clinical Applications... 40 5-2-3. PPG - Arterial Pulse Waveform Studies... 40 5-2-4. PPG - Venous Reflux Study... 43 5-2-5. Menu for PPG... 46 5-2-6. PPG Mode Settings... 46 5-3. Pneumoplethysmograph... 47 5-3-1. PV (Pneumoplethysmography) Probes... 47 5-3-2. Clinical Applications... 48 5-3-3. PV - Arterial Pulse Waveform Studies... 48 5-3-4. PV - Measurement of Maximum Venous Outflow... 50 5-3-5. Menu for PV... 53 5-3-6. PV Mode Settings... 54

6.

Technical Information 6-1. Principles... 55 6-2. Block Diagram... 56 6-3. Specifications... 57 6-4. Safety Standards... 59

CAUTIONS Please read the following important points carefully before you operate the unit.

1. Only skilled persons should operate the unit. 2. Use the unit for blood flow measurement purposes only. 3. Do not apply any modification to the unit. 4. Unit installation: (1) Take care of storage and operating environments. (2) Do not place near water. (3) Dot not place where atmospheric pressure, temperature, humidity, ventilation, sunlight, dust, salt, sulfur and so forth will not affect the unit adversely. (4) Take care of the stability conditions such as inclination, vibration, and shock during transportation and installation works. (5) Do not place where chemicals are stored, or where gas may be generated. (6) Do not place where the unit tends to fall. 5. Before use: (1) Make sure that the unit operates safely and correctly by following the maintenance procedures mentioned in "§ 4-1. Performance Check Procedures by User". (2) Make sure that all cables are connected correctly and safely. (3) Using more then one equipment together may result in erroneous diagnosis from malfunction or cause a danger. (4) Recheck external connections to the patient carefully. (5) Do not sterilize the main unit by gas, autoclave or so on to prevent any damage. 6. Operation: (1) Do not use the unit simultaneously with an electric cautery, cardioverter,

other ultrasonic device or mobile phone. (2) Be careful not to exceed time and volume which is necessary for diagnosis treatment. (3) Always watch so the unit and patient are not under abnormal conditions. (4) When any abnormality is found on the unit or the patient, take proper action such as stopping operating the unit in a manner safe to the patient. (5) Do not let the patient touch the unit. (6) Use the designated accessories only such as the probe. (7) Do not use the accessories with other devices. (8) Use the unit under the operating environments specified on the specifications. (9) Use the Smartdop as specified in the operation manual. 7. After use: (1) Return all switches to the conditions before use and turn off the power supply following the prescribed procedures. (2) Do not apply excessive force to disconnect the cables such as pulling them too strongly. (3) Clean the unit, accessories, cables and probes and place in right place for the next use. 8. Storage: (1) Take care of (1) to (5) of section #4 in the previous page. (2) Clean the unit, accessories, cables and probes and place in right place for the next use. (3) When using the unit next time, follow the maintenance procedures to make sure it works properly and safely. 9. Do the periodical inspection by following the procedures mentioned in "§ 41. Performance Check Procedures by User". (1) Inspection must be done once a year. 10. Probes: (1) Clean the probe using damp cloth or a recommended probe cleaner before use. Using alcohol or thinner may damage the probe

(2) The probe transducer tip is very thin and delicate. Please handle with care and use the probe cap when not in use. 11. Ultrasonic gel: (1) Use ultrasonic gel only for non-invasive use. Using other materials such as baby oil and cream may cause incorrect Doppler sounds. (2) Using other materials may damage the probe. (3) The ultrasonic gel enclosed is non-sterile and do not use it for surgeries. (4) Incidence of allergy: Discontinue use of gel if an allergic reaction occurs. 12. Battery: (1) When battery is extremely low, the LCD display will not operate. Also there will be no speaker sounds. Charge the battery. (2) Battery life is 300 full charges. When full charging life is obviously short, contact your dealer for replacing battery. 13. Repair services: (1) When the unit gets out of order, contact the dealer for repair from whom you purchased the unit. (2) Only authorized persons should perform the repair services. 14. Do not disassemble the Smartdop. 15. Destruction: (1) In case of destruction of the unit, follow the instructions for disposition of the destruction appointed by each country or local government. 16. Any connected computer is not allowed to be in the patient area according to IEC60601-1.

Ω°•®

1. INTRODUCTION Thank you very much for choosing the Smartdop 45.

The Hadeco Smartdop 45 is a uniquely designed bi-directional handheld Doppler with LCD display and fast printer. It detects arterial and venous blood flows in extremities as well as fetal heart sounds. The Smartdop displays velocity waveforms, numerical data and fetal heart rate. Also it prints them out. Please read this manual carefully to acquaint yourself with the Smartdop operation. This medical device can be used by doctor for the purposes mentioned in "§ 1-2. CLINICAL APPLICATIONS" for patient in hospital and clinic. For the use with computer, refer to the operating manual for Windows linking software optional.

1

Introduction

Features

1-1. FEATURES * BI-DIRECTIONAL HANDHELD DOPPLER WITH LCD DISPLAY and FAST PRINTER Displays real-time velocity waveforms, numerical data and heart rate. Prints frozen waveform, numerical data and monitored heart rate as well as patient data. * HADECO DESIGNED SMART MICROPROCESSOR Various mode settings are available for optimal measurement with the menu displayed on the LCD and unique Scroll Button. 30 waveform memory for waveform, numerical data, heart rate and patient data. * CONVENIENT PROBE ACTIVATION BUTTON Freezes and prints waveform and numerical data for notation. The function depends on PRB-KEY mode setting. * MULTIPROBE SELECTION of 2, 4, 5, 8 and 10 MHz. * AUTOMATIC POWER "OFF" * USB COMPUTER INTERFACE Stores waveforms and numerical data in your computer for data analyzing and filing. Communication cable and Windows software are optional. * Photoplethysmograph (PPG) and Pneumoplethysmograph (PV) PROBES OPTIONAL Expands arterial & venous testing.

2

Introduction

Clinical Applications

1-2. CLINICAL APPLICATIONS 1-2-1. Detections of fetal heart rate Probe to be used

BT2M20S8C

(2 MHz)

* Evaluation of fetal heart rate and sounds throughout pregnancy except where fetal heart is not developed sufficiently during the first trimester. 1-2-2. Detections of arterial and venous blood flow velocity Probes to be used

BT4M05S8C BT5M05S8C BT8M05S8C BT10M5S8C

(4 MHz) (5 MHz) (8 MHz) (10 MHz)

* ABI studies * PEAK & MEAN blood velocity determinations. * Peripheral vascular procedures. * Blood pressure segmental studies. * Venous compressions. * Penile & digit systolic pressures. * Flow velocities in recovery room.

3

Introduction

Probe Selection

1-3. PROBE SELECTION The frequency of diagnostic ultrasound is inversely proportional to depth of penetration. The Smartdop has 5 interchangeable probes with different frequencies. Use those probes depending on your applications. Note: One of these probes comes with Smartdop 45 as a standard accessory. Other probes are available as optional accessories. BT2M20S8C (2 MHz):

Fetal heart rate and sounds

BT4M05S8C (4 MHz):

Deep peripheral blood velocity and flow

BT5M05S8C (5 MHz): BT8M05S8C (8 MHz):

Deep peripheral blood velocity and flow Superficial blood velocity and flow

BT10M5S8C (10 MHz):

Superficial blood velocity and flow

1-4. ACCESSORIES Carrying case...

1

AC adaptor...

1

Ultrasonic gel...

1

Paper...

1

Headset...

1

4

2. QUICK START For the first time of use and in case the unit has been not used for a while, fully charge the internal battery.

2-1. TURNING THE UNIT ON / OFF (1) Connect the probe with round polarity mark up (12 o'clock) on the probe connector and press the power button to turn the unit ON.

Polarity mark

(2) Press the power button again to turn the unit OFF. Power button

(3) When Smartdop is turned ON first time, the message as shown in picture right will appear, press Enter button to proceed. (4) When battery is low, low battery indicator appears as shown right. You can use Smartdop for some time though, we strongly recommend recharging battery as soon as possible for further use.

Enter button

Low battery indicator

5

Quick Start

Charging / Discharging Battery

(5) AUTOMATIC POWER OFF When the AUTO-OFF mode is ON, if the unit is left on, the power is automatically shut off after following time passes: (a) 35 minutes when in measurement. (Only Fetal Heart Rate WAVE mode) (b) 15 minutes when in measurement. (Except Fetal Heart Rate WAVE mode) (c) 5 minutes when no signal. (d) 10 minutes when on freeze mode.

2-2. CHARGING / DISCHARGING BATTERY (1) Turn the unit off and plug the AC adaptor to the unit to charge battery. The charging indicator will go solid orange while charging is in progress.

Charging indicator

Note: Use the designated adaptor, FRIWO Model #: FW 3299/15.0974 for Europe. (2) When the battery is fully charged, the charging indicator will go solid green. Unplug the AC adaptor.

AC adaptor connector

(3) Discharging battery When the battery is not fully discharged, charging battery may cause the short charge life of the battery. In this case, we recommend discharging the battery before charging. • Turn the unit off and plug the AC adaptor.

6

Quick Start

Charging / Discharging Battery

• Press Back Button and hold it, and press Enter button to display battery level. • While holding Back Button, press Right button to discharge the battery. • The “DISCHARGE” will be displayed on the LCD. • After the discharging completed, charge process will start automatically and the “DISCHARGE” will disappear, then charging indicator will go solid orange.

Back Button

Enter button

Right button

Note: It takes about 3 hours to fully charge battery. Battery life is 300 full charges. Contact your dealer for replacing battery.

2-3. CHECKING BATTERY LEVEL Battery level indicator shows upper right of the menu screen. (1) Turn the unit on and press Enter button to display the menu. (2) Battery level indicator shows the battery level in 4 steps as shown right. (3) Charge the battery when in low.

7

High

Low

Medium

Empty

Quick Start

Checking Battery Level / Setting Printer Paper

When turning the unit on in case battery is extremely low, the message shown right appears, and waveform memory data, Date setting and Patient data have been cleared. Other mode settings set on Menu mode are not cleared. (1) Press Enter button to go to Measurement mode and charge the battery.

2-4. SETTING PRINTER PAPER (1) Press Cover Open Button to open the paper cover and remove the roll shaft. (2) Insert the roll shaft into the paper roll. (3) Set them in the paper compartment as shown right. Pull the paper edge out a few inches and close the paper cover.

Cover Open Button

8

Quick Start

Measuring Blood Velocity

2-5. MEASURING BLOOD VELOCITY This section explains the fundamental use of measuring blood velocity. Refer to “§ 3. Appearance and Mode Settings” for various uses.

Polarity mark

(1) Connect the probe to the Smartdop with the round polarity mark up on the probe connector (12 o'clock). (2) Put ultrasonic gel on the probe top or patient skin.

(3) Press the power button to turn the unit on. Turn the volume control to maximum. If you wish to enter the patient data, see “§ 3-2-3-g. Patient Data Input”.

Power button Volume control

(4) Put the probe on the measurement area and move it slowly to locate the point where the maximum Doppler sounds are heard. An ideal probe angle to the vessel is approximately 60 degrees.

9

Quick Start

Measuring Blood Velocity (5) When the waveform becomes rhythmical and stable, wait more than 5 sec without moving the probe, and then press the probe button to freeze the waveform. Press Print Button to print the waveform of last 5 sec., if necessory. Note: Probe button function can be selected from Freeze & Print, Freeze, and Print on PRB-KEY mode setting. (6) Headset can be used to listen to Doppler sounds. It will cut off the speaker.

Headset connector

10

Quick Start

Measuring Fetal Heart Rate

2-6. MEASURING FETAL HEART RATE (2 MHz only) This section explains the fundamental use of measuring fetal heart rate. Refer to “§ 3. Appearance and Mode Settings” for various uses.

Polarity mark

(1) Connect the 2 MHz probe to the Smartdop with the round polarity mark up on the probe connector (12 o'clock). (2) Put ultrasonic gel on the probe top or the skin surface.

(3) Press Power button to turn the unit on. Turn the volume control to maximum. (4) If you wish to monitor heart rate waveform, see “§ 3-2-3-h. DISP (Waveform / Data)” to change the mode. Power button Volume control

(5) Put the probe on the middle of the abdomen at right angle to the skin surface, and move it slowly to locate the point where the maximum heart beat Doppler sounds are heard. Skin surface

Caution: Verify the fetal heart rate. (Maternal heart rates match the maternal pulse rates.)

11

Quick Start

Measuring Fetal Heart Rate (6) When the heart rate becomes stable, press the probe or Right button to freeze it. Note: If the stable signals are not being detected, the “*” mark will be shown above “HR”.

(7) Headset can be used to listen to Doppler sounds. It will cut off the speaker.

Headset connector

12

3. APPEARANCE AND MODE SETTINGS 3-1. OPERATING CONTROLS 1

3-1-1. Front left view

2 3

4

Scroll Button 19

18

13

14 17

12 11 5

10 9 8

8

7

6

15 16

1. Paper cover:

For printer paper.

2. Cover Open Button

To open the paper cover.

3. LCD display:

Displays waveform, numerical data, heart rate and menu for mode settings.

4. Speaker:

Outputs Doppler sounds.

5. Probe connector:

To connect probe

6. Power button:

To turn the unit on / off.

7. Volume control:

To adjust sound volume.

8. Strap hole:

To attach hand strap.

13

Appearance and Mode Settings

Operating Controls

9. Headset:

To connect headset. It cuts off the speaker.

10. AC adaptor connector:

To connect the designated AC adaptor.

11. Keyboard connector:

To connect PS2 keyboard.

12. Charging indicator:

Indicates battery status. Orange : Charging Green : Fully charged

13. Scroll Button:

Consists of 5 internal buttons and has following functions. 14. Up:

To select upper menu item. To increase waveform memory number in Freeze mode. To move cursor up on the on-screen keyboard.

15. Right:

To move cursor right on the on-screen keyboard. To go to submenu.

16. Down:

To select lower menu item. To decrease waveform memory number in Freeze mode. To move cursor down on the on-screen keyboard.

17. Left:

To move cursor left on the on-screen keyboard. To go back to main menu from submenu or get out from menu.

18. Enter:

To go to menu mode. To perform the selected command on the menu.

19. Print / Back Button:

To activate / deactivate the printer. To go back to previous screen.

14

Appearance and Mode Settings

Operating Controls

3-1-2. Front right view and Probe

1

2

5

4

3

1. Probe holder:

For probe placement when not in use.

2. Communication port:

To connect computer. (USB)

3. Probe:

Multi-probe selection of 2, 4, 5, 8 and 10 MHz

4. Probe button:

To freeze and unfreeze the waveform. To activate and deactivate the printer. Note : The function is defined in the menu PRB-KEY. See “§ 3-2-3-s. OTHERS - PRB-KEY” for the details.

5. Probe cap:

To protect the probe transducer tip when probe is not in use.

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Appearance and Mode Settings

Mode Settings

3-2. MODE SETTINGS 3-2-1. Basic Modes Smartdop has following five Basic Operation Modes: • Blood Velocity - Measurement

For measuring blood velocity

• Blood Velocity - Freeze

For observing waveforms and numerical data • Fetal Heart Rate - Measurement For measuring fetal heart rate • Fetal Heart Rate - Freeze

For observing heart rate and graph

• Menu

For changing Other Mode Settings

Changing Basic Mode with probe connection (Blood Velocity / Fetal Heart Rate) Connect 4, 5, 8 or 10 MHz probe to the probe connector and turn the unit on for Blood Velocity mode. Connect 2 MHz probe to the probe connector and turn the unit on for Fetal Heart Rate mode. Optional operation modes are available by connecting optional PPG and PV probes. See "§ 5. Options". Changing mode with probe button (Measurement / Freeze) Press the probe button to go to freeze mode and press again to get back to measurement mode. (When PRB-KEY is Freeze mode.) With 2 MHz probe, Fetal Heart Rate mode, pressing Right button also changes this mode.

16

Appearance and Mode Settings

Mode Settings

3-2-2. Menu Using Scroll Button, various mode settings are changeable on Menu mode. Some menus have sub menus. Refer to following Menu structure and Menu operation first. a. Menu structure

2 MHz only

“DISP” menu placement depends on basic mode:

Blood velocity Fetal heart rate

Measurement *2 *1

Freeze *1 *1

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PPG DC only

Appearance and Mode Settings

Mode Settings

b. Menu operation Scroll Button Left

(1) Press Enter to go to Menu mode. Smartdop will display the menu depending on Basic Mode.

Up Right

Down

Enter

(2) Select the mode by pressing Up button or Down button and selected mode will be highlighted. Press Enter button once or twice to change the mode.

(3) For MEMORY, PATIENT and OTHERS, press Enter button or Right button to display sub menu. Press Up button or Down button for the selection of sub menu.

18

Appearance and Mode Settings

Mode Settings

(4) For MEMORY sub menus and LANGUAGE, press Up or Down button again for the selection of memory number or language. (5) Press Left button to go back to main menu from submenu or get out of the menu mode. c. Menu for Blood Velocity Measurement mode

Note : Selections in bold face in the table above are defaults.

19

Appearance and Mode Settings

Mode Settings

d. Menu for Blood Velocity Freeze mode

Note : Selections in bold face in the table above are defaults.

20

Appearance and Mode Settings

Mode Settings

e. Menu for Fetal Heart Rate mode (Measurement and Freeze)

Note : When in Freeze mode, PRINT is available, and only WAVE is selectable on DISP mode. Selections in bold face in the table above are defaults. Button functions limited to Fetal Heart Rate mode 1 Right

To freeze the waveform & numerical data.

2 Up / Down

To cancel and restart the measurement on Monitoring mode.

3 Left

To go to next page on Freeze mode.

21

Appearance and Mode Settings

Mode Settings

3-2-3. Mode Setting Details To get to following menu items, see “§ 3-2-2-b. Menu Operation”. Do the mode setting once and subsequent Smartdop use will revert to this mode. However, when battery gets extremely low, the settings will get back to default settings.

a. MEMORY - STORE (1) The first memory number available will be selected automatically and displayed right side of STORE on the menu. If necessary, change the memory number in which you wish to store the waveform including numerical data and patient data by pressing Up and Down. Note: The memory number with "*" indicates in which data is being stored. (2) Press Enter to store the data into the memory and it will go back to display the waveform automatically. Note: When storing the data into data existing memory, the confirmation "OVERWRITE?" will be displayed. Press Enter to overwrite, or press Left to cancel. When on measurement mode, the data have been frozen before executing STORE command.

22

Appearance and Mode Settings

Mode Settings

b. MEMORY - READ (1) Select the memory number from which you wish to read the data (waveform, numerical data and patient data) by pressing Up and Down. (2) Press Enter button to read the data from the memory. (3) Press Up and Down to display next waveform if necessary. Note: When going into freeze mode, the frozen data will be stored automatically into memory # of FREEZE. If you need to see the frozen data after reading other data from the memory, read FREEZE on the LCD.

c. MEMORY - CLEAR (1) Select the memory number in which data you wish to clear by pressing Up and Down. The memory number with "*" indicates in which data is being stored. (2) Press Enter and then the confirmation screen with waveform stored in the memory will be displayed as shown in the picture right. Press Enter to clear the memory, or press Left to cancel. (3) If you choose ALL and press Enter , all data in the memories will be cleared except FREEZE, frozen data.

23

Appearance and Mode Settings

Mode Settings

d. MODE (Baseline mode) (1) Press Enter to change the mode. Compound mode:

Combined forward and reverse components

Separate mode:

Separation of forward from reverse component

Compound mode

Separate mode

e. TIME (Time scale) (1) Press Enter to change the time scale. Normal:

2.56 sec/screen

Slow:

Intended use : Examinations for artery 12.8 sec/screen Intended use : Examinations for vein

f. DIR (Flow direction) (1) Press Enter button to change the direction of waveform. Forward:

Flow toward probe is processed as positive component.

Reverse:

Flow away from probe is processed as positive component.

Forward mode

Reverse mode

24

Appearance and Mode Settings

Mode Settings

g. PATIENT (Patient data input) The patient data can be input. This setting contains ID, NAME, SEX, AGE, examination DATE, anatomical SITE and MEMOrandum. Save the patient data on Measurement mode and it will apply to all of future measurement data until it's changed so that you won't have to input the same data for the same patient again. If it is done on Freeze mode, the patient data will apply only to the stored/FREEZE data selected. (1) Prior to the patient data input, go to OTHERS-DATE menu and set the date and time for an initial setting. Scroll to the item where you wish to input and press Enter to display data input screen. With SEX, pressing Enter changes Male to Female or vice versa. DATE data can be changed on PATIENT menu when on FREEZE mode only.

Screen keyboard

(2) Scroll to the letter you wish and press Enter to type it. Pressing Back Button or entering Backspace ( ) deletes the letter you typed previously. (3) After entering the data, press and hold Print/Back for longer than 1 sec to save the data or scroll to (Back) and press Enter to do it. (4) Press Left to get out of Patient Data screen. When using external PS2 keyboard: (1) Press any key on the keyboard to open Patient Data screen. (2) Use cursor keys to select item and input the data by typing letters (3) Press Esc or End to save the data and get out of Patient Data screen.

25

Appearance and Mode Settings

Mode Settings

Copy / Paste / Clear of the data You can copy and paste the patient data to the other patient data area when on FREEZE mode mainly for your convenience. (1) Press Back Button while Patient Data screen is displayed. (2) Scroll to the edit command and press Enter. (3) COPY will copy all items of the patient data to clipboard. (4) PASTE will paste the clipboard data to the other patient data area. It overwrites the existing data. All items except DATE will be pasted at once. (5) CLEAR will delete the patient data. (6) PASTE and CLEAR commands require the confirmation as shown right. Press Enter to proceed or press Left to cancel. (7) Press Back Button to go back to Patient Data screen.

h. DISP / OTHERS - DISP (Waveform / Data) (1) Press Enter to change the Display mode. Blood Velocity mode WAVE:

Displays waveforms.

DATA:

Displays numerical data

See “§ 3-3-1. Blood Velocity mode” for the details. Fetal Heart Rate mode WAVE:

Monitors heart rate in graph. (Monitoring mode)

DATA:

Displays heart rate every moment.

26

Appearance and Mode Settings

Mode Settings

See ”§ 3-3-2. Fetal Heart Rate mode” for the details. Note: Display mode cannot be changed on Freeze mode. When Display mode is WAVE in measurement mode, pressing Up or Down resets monitoring data and restarts measurement. i. UPPER (Upper limit for FHR) When the heart rate exceeds the upper limit, the LCD flushes. (After more than 30 seconds have passed since the start.) (1) Press Up and Down to select the upper limit of heart rate and press Enter to fix it. The heart rate is selectable every 5 bpm. Upper limit Lower limit

j. LOWER (Lower limit for FHR) When the heart rate is blow the lower limit, the LCD flushes. (After more than 30 seconds have passed since the start.) (1) Press Up and Down to select the lower limit of heart rate and press Enter to fix it. The heart rate is selectable every 5 bpm. k. OTHERS - LANGUAGE (1) Press Up and Down to select the language in which menus and messages are written. And press Enter to fix it. l. OTHERS - UNIT (cm/s / kHz) (1) Press Enter to change the unit of blood flow. cm/s: Blood flow velocity kHz:

Doppler frequency shift

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