3M 3200 manual Select Filter, Monitor Patient Heart Rate, Monitor Battery Life

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5. Select Filter

This electronic stethoscope allows the user to select between three different digital frequency filters to better emphasize the specific patient sounds of interest.

•The Bellmode amplifies sounds from 20 - 1000Hz, but emphasizes lower frequency sounds between 20 - 200Hz.

•The Diaphragm mode amplifies sounds from 20 - 2000Hz, but emphasizes the sounds between 100 - 500Hz.

•The Extended Range mode amplifies sounds from 20 - 2000Hz similar to the Diaphragm Mode, but provides more low frequency response between 50 - 500Hz.

The default setting is the Diaphragm filter. Instructions for changing the default filter setting are given in the Custom Configuration section below.

To select filter: Depress and release filter button (as shown in diagram) until desired filter mode appears on the LCD display.

7. Monitor Patient Heart Rate

The Model 3200 detects and displays an acoustic-based heart rate when presented with consistent heart sounds (heart rate variation < 10%). It takes five seconds to compute the initial heart rate and updates are provided every two seconds. The heart rate will then be displayed for 10 seconds after removal of the chestpiece from the patient. Prior to the initial reading, the display shows two dashes (--). For heart rates outside a range of 30-199 bpm, the display will also show two dashes (--).

The acoustic-based heart rate display functions best when the Model 3200 is placed near the apex of the patient’s heart and can be monitored while using any filter mode and/or volume level. If the heart rate changes from consistent to inconsistent or if there is excessive ambient noise, patient movement or lung sounds during auscultation, the heart rate display number will display two dashes (--).

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8. Monitor Battery Life

Battery life is indicated by an icon in the LCD display.

Bell	Diaphragm
Mode	Mode
Icon	Icon

Extended

Range Mode

Icon

6. Adjust Sound Amplification Level

The Model 3200 sound level can be amplified in 8 increments up to 24X amplification of a non-electronic (cardiology-level) stethoscope. Level 1 is equal to a non-electronic stethoscope. Level 9 is equal to 24X amplification of a non-electronic stethoscope. The greater the amplification, the more bars you will see.

A default start-up amplification level can be set using the instructions provided in the Custom Configuration section below. The default setting is marked by the box on the vertical bar shown in the volume icon in the LCD display. The illustration shows a default amplification setting at Level 3.

The Model 3200 comes with a AA Alkaline battery. Battery will provide approximately 50-60 hours of continuous use, depending on the frequency of Bluetooth data transfers. In a typical clinical setting, this represents about three months of use.

As the battery life depletes, the icon will change as follows:

The battery icon begins to blink when only a few hours of battery capacity remains.

CAUTION: When the battery is completely depleted the scope becomes inoperable. No sound will be transmitted without a functioning battery.

IMPORTANT! NiMH (rechargeable) and Lithium batteries may also be used in the Model 3200. However, battery type must be specified to ensure a reliable battery life indication (see Custom Configuration section below).

•Increase Amplification: Press ( + ) button until desired amplification level is achieved

•Decrease Amplification: Press ( - ) button until desired amplification level is achieved

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