Intelect Legend Ultrasound User Manual Rev D

Table of Contents Introduction...1 Welcome to the Intelect® Legend Ultrasound...1 Features of the Intelect Legend Ultrasound...1 Foreword...1 Liability Disclaimer...2 Precautionary Instructions...2 Principles of Operation...3 Initial Setup Instructions...3 System Components...3 Optional Accessories...3 Operator Interface...3 Operating Controls...4 Indications/Contraindications...5 Indications... 5 Contraindications...5 Precautions...5 Warnings...5 Potential for Burns...6 To Prevent Overheating of Sound Head...6 Preventing Adverse Effects...6 Handle Ultrasound Applicator(s) with Care...7 US - Ultrasound...8 Introduction to Ultrasound Therapy...8 Intelect Legend Ultrasound Clinical Features...8 General Setup Steps...8 Power-Up Preset Parameters...9 Quick Start...9 Detailed Setup Steps...9 Modifying Treatment Parameters...10 Changing Power-Up Preset Parameters...10 Head Warm...10 Basic Guidelines for Ultrasound Utilization...10 Appendix...11 Intelect Legend Ultrasound Two Year Limited Warranty...11 System Utilities...12 Maintenance Instructions...13 System Troubleshooting...13 Technical Specifications...14 Description of Ultrasonic Field...16 Glossary...19

Introduction • Welcome to the Intelect® Legend Ultrasound • Features • Foreword • Before Using the Intelect Legend Ultrasound • Precautionary Instructions

Welcome to the Intelect Legend Ultrasound The Intelect Legend US, designed and manufactured by Chattanooga Group offers a new dimension in ultrasound therapy made possible by advanced software design and digital signal processing. The result is a unit with extraordinary versatility based on simplicity of operation. The Intelect Legend US allows you to select a frequency of 1 or 3.3 MHz without changing sound heads. Sound heads are available in 2 cm2 , 5 cm2 and 10 cm2 and include the patent pending Electronic Signature™ feature. Duty cycle may be set at 10%, 20%, 50% or Continuous.

Features of the Intelect Legend Ultrasound • Electronic Signature™ Automatically calibrate the system to any size Intelect Legend sound head. • Ergonomic applicators A new ergonomic design that offers a 20 degree contour in the applicator hand grip. This ergonomic extra will help deliver uniform ultrasound with greater clinician comfort. • Head Warming A feature traditionally available in more expensive brands of ultrasound. This will help curb the anxiety of patients during the first moments of treatment. • Easy as One-Two-Go In just two steps you are ready to start treatment, just set “Intensity” and press “Start.” • Tactile Touch Control Digital electronics and new user interface design give you simple tactile touch control of all system parameters. • Programmable Start-Up Presets All power-up presets can be individually customized to meet the clinician’s needs.

Foreword This manual has been written for the owners and operators of the Intelect Legend Ultrasound. It contains general instructions for operation, precautionary instructions and maintenance recommendations. In order to obtain maximum life and efficiency from your Intelect Legend Ultrasound and to assist in the proper operation of the unit, read and understand this manual thoroughly and become familiar with the controls on the panel as well as the various accessories that come with the unit before operation of the unit. The specifications put forth in this manual were in effect at the time of publication. However, owing to Chattanooga Group’s policy of continuous improvement, changes to these specifications may be made at any time without obligation on the part of Chattanooga Group.

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Liability Disclaimer Before administering any treatment to a patient you should become acquainted with the operating procedures, as well as the indications, contraindications, warnings and precautions. Consult other resources for additional information regarding the application of therapeutic ultrasound.

Precautionary Instructions 1. CAUTION:

Read, understand and practice the precautionary and operating instructions. Know the limitations and hazards associated with using any ultrasound device. Observe the precautionary and operational decals placed on the unit. 2. CAUTION: DO NOT operate the Intelect® Legend Ultrasound when connected to any unit other than Chattanooga Group, Inc. devices. DO NOT operate the unit in an environment of shortwave diathermy use. 3. WARNING: Federal law restricts this device to sale by, or on the order of, a physician or licensed practitioner. This device should be used only under the continued supervision of a physician or licensed practitioner. 4. CAUTION: The Ultrasound generator should be routinely checked before each use to determine that all controls function normally; especially that the intensity control does properly adjust the intensity of the ultrasonic power output in a stable manner. Also, determine that the treatment time control does actually terminate ultrasonic power output when the timer reaches zero. 5. CAUTION: Use of controls, adjustments or performance of procedures other than those specified herein may result in hazardous exposure to ultrasonic energy. 6. CAUTION: DO NOT use sharp objects such as a pencil point or ballpoint pen to operate the buttons on the control panel as damage may result. 7. WARNING: Explosion hazard if used in the presence of flammable anesthetics. The warning symbol for this hazard is prominently displayed on the cabinet. 8. WARNING: For continued protection against fire hazard, replace fuses only with ones of the same type and rating. 9. WARNING: Make certain that the unit is electrically grounded by connecting only to a grounded electrical service receptacle conforming to the applicable national and local electrical codes. 10. WARNING: This device should be kept out of the reach of children. 11. WARNING: This device should be used only under the continued supervision of a licensed practioner. 12. CAUTION: Meets IEC/EN 60601-1-2 Electromagnetic Compatibility/Interference safety standard. (Care must be taken when operating this equipment around other equipment. Potential electromagnetic or other interference could occur to this or to the other equipment. Try to minimize this interference by not using other equipment in conjunction with it.) 13. WARNING: Type B Equipment 14. CAUTION: This unit should be operated, transported and stored in temperatures between 15° - 40° C, with relative humidity ranging from 30% - 60%. 15. ATTENTION: Consult accompanying documents. 16. DANGER: Patients with an implanted neurostimulation device must not be treated with or be in close proximity to any shortwave diathermy, microwave diathermy, therapeutic ultrasound diathermy or laser diathermy anywhere on their body. Energy from diathermy (shortwave, microwave, ultrasound and laser) can be transferred through the implanted neurostimulation system, can cause tissue damage and can result in severe injury or death. Injury, damage or death can occur during diathermy therapy even if the implanted neurostimulation system is turned "off."

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Principles of Operation • Initial Setup Instructions • System Components - Standard and Optional Accessories • Operator Interface - Operating Controls

Initial Setup Instructions Remove the Intelect® Legend US unit and any additional items ordered from the carton and inspect for damage that may have occurred during shipment. Check the voltage rating on the serial decal located on the bottom of the unit. Plug the system power supply in to a 120 Volt to 220/240 Volt AC outlet, as required. DO NOT attempt to use Direct Current (DC). DO NOT attempt to use the unit if it is not properly grounded. DO NOT place unit in a location where the power cord could be tripped over or pulled out during treatment. Follow the procedures listed in the precautionary instructions located later in this section.

System Components The following accessories are included (standard) with your Intelect Legend Combo. Item

Part#

Description

1

78047

Applicator, Ultrasound 5 cm 2

2

4248

Conductor™ Gel

3

78201

Operator’s Manual

Optional Accessories The following is a list of optional accessories available for the Intelect Legend Combo. Item

Part#

Description

1

78046

Applicator, Ultrasound 10 cm 2

2

78048

Applicator, Ultrasound 2 cm 2

Operator Interface The operator interface consists of an illustrated control panel with light emitting diodes (LED) and a liquid crystal display (LCD). The operator is able to view parameter options on the LED and LCD readouts and make selections by touching the designated area of the control panel. The displays will provide continual information during the treatments concerning amplitude and elapsed time. Ultrasound and stimulation intensities are adjusted with control panel buttons adjacent to the corresponding LED display. The stimulation / ultrasound output can be stopped by pressing the “PAUSE” or “STOP” buttons located at the bottom of the control panel.

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LED Display

Illustrated Control Panel

®

Operating Controls 1. LED Screen Display - LED Parameter Display Field. • Displays Treatment Time, Output Intensity, Frequency, Duty Cycle, Display and Head Warm. 2. Illustrated Control Panel • Membrane switches control LED screen display and treatment parameters. 3. Intensity (Power) • Select this prompt to set or modify output power intensity. 4. Time • Select this prompt to set or modify treatment time in minutes. 5. Frequency • Select this prompt to change to a frequency of 1 MHz or 3.3 MHz. 6. Duty Cycle • Select this prompt to change to a duty cycle of 10%, 20%, 50% or Continuous. 7. Head Warm • Select this button to warm the head of the ultrasound applicator prior to treatment. Note: Turning Head Warm on will be accompanied by a fan turning on and the lighting of the Head Warm LED on the LED display. The fan and the LED will turn off when Head Warm is turned off. A low level of output will be displayed in the output LED display when Head Warm is active. 8. Display • Select this button to change output display from W/cm2 (Intensity) to Watts (Power). 9. Stop • Select this prompt to stop a treatment session. 10. Pause • Select this prompt to pause a treatment session. 11.

Start • Select this prompt to begin a treatment session.

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Indications/Contraindications Indications Ultrasound for use in applying deep heat can be used for treatment of selected medical conditions such as the relief of pain, muscle spasms and joint contractures. Those conditions may be associated with adhesive capsulitis, bursitis with slight calcification, myositis and soft tissue injuries. The Intelect® Legend Ultrasound can provide therapeutic deep heating between 40° and 45° C in all of its operating modes, while using any of the applicators available for this device.

Contraindications Ultrasound should not be used over: • An area of the body where a malignancy is known to be present. • The eyes • The reproductive organs • An acute infection or sepsis • A pregnant uterus • A deep vein thrombosis • An arterial disease • An anesthetized area or condition that causes impairment of sensation, such as chemotherapy. • The epiphyses of skeletally immature children. • The thoracic area if the patient is using a cardiac pacemaker. • A healing fracture • Ischemic tissues in individuals with vascular disease where the blood supply would be unable to follow the increase, in metabolic demand and tissue necrosis might result. • Patients with an implanted neurostimulation device must not be treated with or be in close proximity to any shortwave diathermy, microwave diathermy, therapeutic ultrasound diathermy or laser diathermy anywhere on their body. Energy from diathermy (shortwave, microwave, ultrasound and laser) can be transferred through the implanted neurostimulation system, can cause tissue damage and can result in severe injury or death. Injury, damage or death can occur during diathermy therapy even if the implanted neurostimulation system is turned "off."

Precautions Precautions should be taken when used: • For acute conditions of bursitis and tendonitis that can be exacerbated by the use of ultrasound. • Over an area of the spinal cord following a laminectomy (i.e., when major covering tissues have been removed). • On patients with a tendency toward hemorrhaging.

Warnings • Always keep the applicator sound head in constant motion. • Always keep the sound head in full contact with the patient’s skin or submerged under water when setting intensity. • Use ample conductive gel to ensure good coupling throughout the treatment. If needed, apply when setting intensity. • Be sure to read all instructions for operation before treating a patient. • DO NOT drop the sound head on hard surfaces. DO NOT cool the sound head with ice water or ice packs. DO NOT allow the sound head to overheat repeatedly. All of these conditions are likely to damage the sound head crystal. • CAUTION: Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous exposure to ultrasonic energy.

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Potential for Burns It is possible for ultrasound therapy to cause burns if the therapy is not performed properly. Skin burns can result from one or more of the following: • If the intensity (power) is too high. • If you are using too low a frequency. • Using a stationary technique (holding the sound head in one place). • Moving the sound applicator head too slowly. • Treating an area with sensory nerve damage (or the loss of normal skin sensations). • Desensitized areas can be overheated or burned without the patient knowing it. Use extreme caution with these patients (e.g., diabetes, neural damage, etc.). • Bony prominences are especially vulnerable: they reflect sound waves and increase intensity to the periosteum.

To Prevent Overheating of the Sound Head • Check to be sure proper contact is being made throughout the treatment. • When treating in water, make sure that the applicator head is completely under water. • For direct coupling, you may need to apply more conductive gel or lotion during the treatment to achieve better coupling. • You can also reduce the power or duty cycle during the treatment if you are treating an area where it is difficult to obtain good coupling.

Preventing Adverse Effects • Applicator Movement If movement of the ultrasound applicator is too slow, the patient may feel perosteal pain characterized by a deep ache or pain. If motion is too fast, or if the applicator head does not maintain good contact with the skin, the therapeutic effect of the sound waves will be reduced and the sound head may overheat. • Patient Susceptibility Some patients are more sensitive to ultrasound output and may experience a reaction similar to a heat rash. Be sure to inspect the treatment area during and following treatment, and discontinue if an adverse reaction does occur. • Output Power Choose a lower watt setting to reduce output or select a pulsed duty cycle. Higher output levels have a greater potential for patient discomfort. • Coupling Coupling is described as contact between the sound head and the treatment site and may be accomplished through the use of a coupling agent, such as gel, lotion or water (underwater treatments only). Anything used as a coupling agent must be highly conductive. Air is a very poor conductor of ultrasonic waves. • Head Max. Temp. Disclaimer Note: Head Max. Temp. is for the protection of the equipment, not for the protection of the patient.

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Handle the Ultrasound Applicator(s) with Care • DO NOT drop the sound head on hard surfaces. • DO NOT allow the sound head to reach maximum temperatures repeatedly. • DO NOT cool an overheated sound head with ice water or ice packs. • All of these conditions are likely to damage the sound head crystal. • Damage resulting from these conditions is not covered under the warranty.

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US - Ultrasound • Introduction to ultrasound • Intelect® Legend Clinical Features • General Setup Steps and Quick Start • Detailed Setup Steps

Introduction to Ultrasound Therapy Utilizing ultrasound waves through muscle, nerve and connective tissue has been well documented as effective in reducing pain, muscle spasms and joint contractures. There are several items that affect the penetration of ultrasound on the target tissues. Please refer to the literature as a reference on the appropriate frequency for your clinical needs. There are three ultrasound applicators available with the Intelect US: 2cm2, 5 cm2 and 10cm2. You may select either 1 or 3.3 MHz frequencies for each ultrasound applicator. Frequency may be selected either before or during treatment.

Intelect Legend Ultrasound Clinical Features • Electronic Signature™ Automatically calibrates the system to any size Intelect Legend sound head. • Head Warming A feature traditionally available in more expensive brands of ultrasound. This will help curb the anxiety of patients during the first moments of treatment. • Ergonomic Applicators A new easy to handle applicator that offers a 20 degree contour in the hand grip. This ergonomic extra will help deliver uniform ultrasound wiht greater clinician comfort. • Tactile Touch Control Digitial electronics and new user interface design give you simple tactile touch control of all system parameters. • One-Two-Go Format In two steps you are ready to start therapy. • Programmable Start-Up Presets All power-up presets can be individually customized to meet the clinician’s needs.

General Setup Steps The unique design of the front panel allows you to set up a treatment faster than ever. Careful grouping of treatment options allow you to easily indentify and select from the appropriate options for a specific mode of treatment. Two simple steps are all that’s needed prior to touching Start and initiating treatment.

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Power-Up Preset Parameters Frequency:

1 MHz

Duty Cycle:

20%

Treatment Time:

5 Minutes

Power:

Clinician Controlled

Quick Start The following is a quick step by step procedure for using ultrasound (US). Before proceeding refer to treatment cautions. Procedure

Comments

Turn power on

The unit will go through self diagnosis, followed by the main menu.

Apply ultrasound gel

Follow steps in preparation for treatment.

Set “Intensity”

Set intensity level for your treatment.

Press “Start”

To begin treatment

End Treatment

Clean area of residual gel.

Detailed Setup Steps 1. Turn System power “ON.” 2. To preset parameters, as described above, will be displayed on the LED display. To change the power-up presets, see System Utilities (on page 12). 3. Select “FREQUENCY.” Press the Frequency icon to select 1 or 3.3 MHz. When the icon is pressed, frequency will toggle from 1 to 3.3 MHz and back again as long as the icon is being pressed. Note: With the 2 cm2 and 5cm2 heads, switching from 1 to 3.3 MHz results in no change in power. When using a 10 cm2 head at 11 Watts or greater, changing from 1 to 3.3 MHz reduces power 50%. 4. Select “DUTY CYCLE.” Press the Duty Cycle icon to select 10%, 20%, 50% or Continuous Duty Cycle. When the icon is pressed, the Duty Cycle toggles through the options on the LED display. 5. Select “TREATMENT TIME.” Raise or lower treatment time using the up and down arrow keys in the Time box. Note: The time section of the parameter display field shows set values only. 6. Increase “INTENSITY.” Raise or lower power using the up and down arrow keys in the Intensity box. Output intensity will be displayed in the Output LED Display. 7. Select “START.” Press Start. The timer will count down and ultrasound power will ramp up. Note: When treatment time has expired a tone will sound. Wipe excess coupling medium from patient’s skin.

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Modifying Treatment Parameters Treatment parameters can be modified prior to or during a treatment session. To modify a parameter, select that parameter on the control panel. Treatment time and output intensity are changed using their designated up or down arrow buttons. Frequency, duty cycle and output display toggle from choice to choice with repeated touches of their respective buttons. You have the choice to make changes on-line while a session is in progress, or you may pause the session by pressing the Pause button and make desired changes. If Pause is your choice, press Start to resume the session after changes are made.

Changing Power-Up Preset Parameters First, change the parameters to your desired settings. Next, simultaneously touch and hold the Intensity key and the Display key.

Head Warm Select this option prior to starting a treatment session and the sound head will warm using a percentatge of the unit’s power. The Head Warm LED will activate and a fan will turn on indicating heat warming is on. Note: Head Warm is only possible prior to pressing the Start button, thereby initiating a treatment. When the start button is pressed, Head Warm is turned off.

Basic Guidelines for Ultrasound Utilization • Patient Position • Position the patient in a correct anatomical posture to allow for effective treatment. • For example, when attempting to treat the bicipital groove of the humerus, be sure to position the arm in an externally rotated position to expose the target tissue to the ultrasound waves. • Importance of Transducer to Skin Contact • Ultrasound energy will not pass into the target tissue if the angle of the transducer head to the surface of the skin is greater than or equal to 15 degrees (Summer and Patrick, 1964). • If air is trapped in the coupling agent or between the skin and the transducer, attenuation of the ultrasound energy will occur resulting in diminshed results. • The transducer head may be damaged if there is poor contact during treatment because the crystal develops standing waves when the ultrasound vibration is not unloaded (Griffin, 1992).

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Appendix • Warranty • System Utilities • Maintenance • System Troubleshooting • Technical Specifications

Intelect® Legend Ultrasound Two Year Limited Warranty The Chattanooga Group (“company”) warrants that the Intelect Legend US (“product”), excluding accessories, is free of defects in material and workmanship. This warranty shall remain in effect for two (2) years from the date of the original consumer purchase of this and extends to any owner of the product during the warranty period. Accessories that are included as standard with the product (as listed in the users manual) are warranted for 90 days. Ultrasound applicators 2 cm2, 5 cm2 or 10 cm2 are warranted for one (1) year. If this product fails to function during the two year warranty period because of defect in material or workmanship, the company or the selling dealer will replace or repair this product without charge within a period of 30 days from the date on which the defective product is returned to the company or the dealer. The company or the dealer will ship the replacement or repaired product to the owner. All calibration and repairs must be performed by a service center authorized by the Chattanooga Group. Any modifications or repairs performed by unauthorized centers or groups will void this warranty. To participate in warranty coverage, the product’s warranty registration card (included with the product) must be filled out and returned to the Chattanooga Group by the original owner within 10 business days of purchase. This warranty does not cover: 1. Replacement parts or labor furnished by anyone other than the company, the dealer or an approved company service agent. 2. Defects or damage caused by labor furnished by someone other than the company, the dealer or an approved company service agent. 3. Any malfunction or failure in the product while it is in the possession of the owner during the warranty period, if the malfunction or failure is not caused by a defect in material or workmanship. This includes but is not limited to a malfuntion or failure caused by unreasonable use, applications in which the product was not intended or the failure to prove reasonable or necessary maintenance. The Company Shall Not be Liable for Incidental or Consequential Damage.

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Warranty Registration Complete the warranty registration card and return it to Chattanooga within 10 days of purchase. The warranty registration card should be filled out completely with the system serial number and serial number of the included ultrasound applicator. Warranty registration will ensure that you will not be billed for services that are covered by the warranty policy. Complete the entire card included with your system and return postage paid to the Chattanooga Group. To obtain service from company or selling dealer under this warranty, the owner must do or abide by the following: 1. A written claim must be made within the warranty period to company or selling dealer. 2. If the claim is made to the company, the written claim should be sent to: 4717 Adams Rd. P.O. Box 489 Hixson, TN USA 37343 Telephone: (800) 592-7329 3. The product must be returned to the company or selling dealer by the owner. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. The company does not authorize any person or representative to create for it any other obligation or liability in connection with the sale of the product. Any representation or agreement not contained in the warranty shall be void and of no effect.

System Utilities Audible Tones Audible tones will be heard in the following conditions: Changing Frequency, Duty Cycle or when Max. Head Temp. is exceeded. Changing Power-Up Preset Parameters Change the parameters to your desired settings. Simultaneously touch and hold down the Intensity and Display keys. Changing Power-Up Preset Parameters Prior to or during a treatment session, any parameter may be changed. To change Frequency or Duty Cycle, press the respective button to scroll through the provided options. As you scroll, an audible tone will be heard to make you aware of the change. Intensity and Treatment Time changes are made by touching their respective buttons then using the up or down arrow keys to advance to the desired settings. Note: Intensity display will first be viewed in the smaller Intensity display box of the parameter display field, after touching Start, the in-treatment display of Intensity will ramp up to your desired setting. Head Warm Touch this option prior to starting a treatment session and the sound head will warm, using a percentage of the unit’s power. The Head Warm LED will activate, and a fan will turn on, indicating Head Warming is on. Note: Head Warm is only possible prior to touching the Start button initiating a treatment. When the Start button is pressed, Head Warm is turned off.

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Maintenance Instructions To fully maintain compliance with Federal Regulation Title 21 (21 CFR), this unit must be recalibrated annually. It is recommended that all Chattanooga Group ultrasound products be returned to the factory or an authorized servicing dealer for repairs or recalibration. Recalibration is also recommended after the replacement or repair of any major component. The following items should be be checked at least monthly to ensure proper operation of this unit: • Power Cord and Plug: Check to make sure the cord is not frayed, kinked or does not have torn or cut insulation. • Power Supply: Check to be sure all connections are secure and there is no build-up of material in the connection area. • Sound Head Cable: Check to make sure the cable is flexible, free of kinks, not frayed and that insulation is in tact. • Sound Head Face: Check to see that there is no build-up of gel or foreign material on the aluminum face. Cleaning Ultrasound Applicators To clean these accessories, use only soap and water. Alcohol may be used to disinfect the aluminum surface, but avoid the gray plastic area. Caution: When cleaning, plug input cable into the unit to prevent wetting electrical contacts. Cleaning Intelect® Legend Ultrasound Case The Intelect Legend Ultrasound Case may be cleaned by wiping with a damp cloth or mild cleaning solution. Avoid abrasive cleansers. DO NOT immerse unit or power supply and DO NOT spray directly on unit or power supply. It is best to dampen cloth, then wipe surface.

System Troubleshooting Display Case The following messages are displayed in the LED display panel under the following conditions: Ultrasound Message

Displayed When:

HHH

Applicator head reaches a temperature which could damage the crystal.

noHd

No ultrasound head detected.

E 03

An attempt to setup an address on the onewire device failed.

E 04

An attempt to read data from the onewire device failed.

E 05

An attempt to program the onewire device failed.

E 06

The onewire EPROM is full (during cal).

E 08

A device ID was returned from the onewire device that is unknown (i.e., not a 2502 or 2505).

E 08

The ultrasound head is uncalibrated.

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Technical Specifications for Intelect® Legend US Intelect Legend Ultrasound Dimensions:

8.25” x 11” x 2.5”

Weight:

2.9 lbs

Applicators:

2 cm2, 5 cm2 and 10 cm2

Input:

~100 - 250V, 1.0A 50/60 Hz

Output:

… +12V. 4.1A

Fuse:

4.0 A

2 cm2 Applicator Frequency (MHz):

1.0 MHz, 3.3 MHz (all +/- 5%)

Power (Watts):

0 to 4 Watts

ERA (cm2):

1.8 cm2

Effective Radiating Area:

1.8 cm2 -0.4/+0.2 cm2 for the 2 cm2 crystal

Maximum beam non-uniformity ratio:

5.0:1

Beam Type:

Collimating

5 cm2 Applicator Frequency (MHz):

1.0 MHz, 3.3 MHz (all +/- 5%)

Power (Watts):

0 to 10 Watts

ERA (cm2):

4.0 cm2

Effective Radiating Area:

4.0 cm2 +/- 1.0 cm2 for the 5 cm2 crystal

Maximum beam non-uniformity ratio:

5.0:1

Beam Type:

Collimating

10 cm2 Applicator Frequency (MHz):

1.0 MHz, 3.3 MHz (all +/- 5%)

Power (Watts):

1 MHz: 0 to 20 Watts, 3.3 MHz: 0 to 10 Watts

ERA (cm2):

8.5 cm2

Effective Radiating Area:

8.5 cm2 +/- 1.5 cm2 for the 10 cm2 crystal

Maximum beam non-uniformity ratio:

5.0:1

Beam Type:

Collimating

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Duty Cycle Pulsed:

10%, 20%, 50%

Continuous:

100%

Pulse Duration 5 msec +/- 20%:

(50% Duty Cycle, pulsed mode)

2 msec +/- 20%:

(20% Duty Cycle, pulsed mode)

1 msec +/- 20%:

(10% Duty Cycle, pulsed mode)

Ultrasonic Power Variable from 0 Watts to 20 Watts, 10 cm2 crystal at 1.0 MHz, 1 - 10 Watts at 3.3 MHz Variable from 0 Watts to 10 Watts, 5 cm2 crystal Variable from 0 Watts to 4 Watts, 2 cm2 crystal

Output Meter Accuracy +/- 20% for any output above 10% of maximum

Temporal Peak / Average Intensity Ratio 2:1 +/- 20% for 50% Duty Cycle 5:1 +/- 20% for 20% Duty Cycle 9:1 +/- 20% for 10% Duty Cycle

Output Pulsed:

1 MHz or 3.3 MHz, modulated 100% by the 100 Hz rectangular wave with the selected Duty Cycle.

Continuous:

1 MHz or 3.3 MHz, nominal signal that is activated as long as the timer is operating

Timer Accuracy +/- 0.2 minute

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Description of Ultrasonic Field The spatial distribution of the radiated field is essentially a collimated beam of the ultrasonic energy having a cross-sectional area of 8.5 cm2 for the 10 cm2 sound head when measured at a point 5 mm from the transducer face. The energy distribution within the radiated field is 2.4 w/cm2 maximum and it takes a generally conic shape, having decreasing intensity at progressively increasing distance from the face of the transducer. This field distribution applies for the radiation emitted into the equivalent of an infinite medium of distilled, degassed water at 30° C and with the line voltage variations in the range of 10% of the rated line voltage.

Abbreviations The following abbreviations are used on the sound head of the Intelect® Legend US. Abbreviation

Meaning

Area

Effective Radiating Area

Coll.

Collimating

BNR

Beam Non-Uniformity Ration

Freq.

Frequency

Beam Profile of the 10 cm2 Transducer Operating at 1 MHz Spatial distribution of the radiated field is essentially a collimated beam of the ultrasonic energy having a cross-sectional area of 8.5 cm2 for the 10 cm2 sound head when measured at a point 5 mm from the transducer face. Energy distribution within the radiated field is 2.4 W/cm2 maximum and it takes a generally conic shape, having decreasing intensity at progressively increasing distance from the face of the transducer. This field distribution applies for the radiation emitted into the equivalent of an infinite medium of distilled, degassed water at about 30° C and with power line variations in the range of +/- 10% of the rated voltage.

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Beam Profile of the 5 cm2 Transducer Operating at 1 MHz and 3.3 MHz Spatial distribution of the radiated field is essentially a collimated beam of the ultrasonic energy having a cross-sectional area of 4.0 cm2 for the 5 cm2 sound head when measured at a point 5 mm from the transducer face. Energy distribution within the radiated field is 2.5 W/cm2 maximum and it takes a generally conic shape, having decreasing intensity at progressively increasing distance from the face of the transducer. This field distribution applies for the radiation emitted into the equivalent of an infinite medium of distilled, degassed water at about 30° C and with power line variations in the range of +/- 10% of the rated voltage.

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Beam Profile of the 2 cm2 Transducer Operating 3.3 MHz Spatial distribution of the radiated field is essentially a collimated beam of the ultrasonic energy having a cross-sectional area of 1.8 cm2 for the 2 cm2 sound head when measured at a point 5 mm from the transducer face. Energy distribution within the radiated field is 2.22 W/cm2 maximum and it takes a generally conic shape, having decreasing intensity at progressively increasing distance from the face of the transducer. This field distribution applies for the radiation emitted into the equivalent of an infinite medium of distilled, degassed water at about 30° C and with power line variations in the range of +/- 10% of the rated voltage.

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