3M Littmann 3100 Manual De Instrucciones página 6

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2. Position Headset
Eartips should point in a forward direction as you insert them into your ear canals. When ear tips are properly positioned,
diaphragm will face towards your body.
Your new Littmann Electronic Stethoscope is designed to give you a very comfortable,
acoustically sealed fi t. It comes with two sizes of eartips to assure a perfect fi t. The large
eartips are pre-installed. Smaller eartips are included in package. Please choose the set
that is most comfortable for you.
To remove eartips, pull eartips fi rmly away from eartube. To apply new eartips, push eartip fi rmly onto eartube to secure.
3. Adjust Headset for Comfort
To reduce spring tension in the headset, hold each eartube at the bend near the
eartips and gradually pull apart until fully extended (180 degrees).
To increase spring tension, grasp the headset with one hand where the metal eartubes enter the
plastic tubing, and squeeze until the plastic tubing on one eartube touches the other.
Repeat as necessary.
4. Turn On / Off
This stethoscope comes equipped with an advanced power management system.
Manual Turn On: Depress and release power button. LCD display will
activate, indicating stethoscope is on.
Manual Turn Off: Depress and hold power button for two seconds. LCD
display will shut off, indicating stethoscope is off.
Reduce Tension
Increase Tension
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Auto Off with Standby Feature: After manual turn-on, stethoscope will stay on during use, but switch to a power-
saving "standby" mode after 20 seconds of inactivity. LCD display will display the Littmann® logo during standby
mode. When stethoscope diaphragm or any button is pressed, LCD display settings will reappear and stethoscope
will be ready to use. After two hours of non-use, the stethoscope will leave standby mode and fully power off. You
may customize on-time and off-time to meet your own personal needs. See Custom Confi guration section below.
LCD Display Backlight: Backlight options are available for use at low ambient light conditions. By default,
depressing and releasing the power button at any time will illuminate the LCD display for fi ve seconds.
5. Select Filter
This stethoscope comes equipped with both bell (low frequency) and diaphragm (high frequency) fi lters. The default setting is
the diaphragm fi lter. Instructions for changing the default fi lter setting are given in the Custom Confi guration section below.
To select fi lter: Depress and release fi lter button (as shown in diagram) until desired fi lter mode appears on LCD display.
6. Adjust Sound Amplifi cation Level
The Model 3100 sound level can be amplifi ed in 8 increments up to 24X amplifi cation of a non-electronic (cardiology-level)
stethoscope. Level 1 is equal to a non-electronic stethoscope. Level 9 is equal to 24X amplifi cation of a non-electronic
stethoscope. The greater the amplifi cation, the more bars you will see.
A default start-up amplifi cation level can be set using the instructions provided in the Custom Confi guration 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 amplifi cation setting at Level 3.
Increase Amplifi cation: Press ( + ) button until desired amplifi cation level is achieved
Decrease Amplifi cation: Press ( - ) button until desired amplifi cation level is achieved
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