Alcotest 3820 - Breathalyzer Dräger - Free user manual and instructions

USER MANUAL Alcotest 3820 Dräger

1 Safety-related information

• Before using this product, carefully read the Instructions for Use.
• Strictly follow the Instructions for Use. The user must fully understand and strictly observe the instructions. Use the product only for the purposes specified in the Intended use section of this document.
• Do not dispose of the Instructions for Use. Ensure that they are retained and appropriately used by the product user.
• Comply with all local and national rules and regulations associated with this product.
• Only trained and competent personnel are permitted to inspect, repair and service the product (contact DrägerService or dealer).
• Do not use a faulty or incomplete product. Do not modify the product.
• Notify Dräger in the event of any component fault or failure.

2 Conventions in this document

2.1 Meaning of the warning symbols

The following warning symbols are used in this document to identify and highlight the relevant warning texts that require increased care and attention on the part of the user. The meanings of the warning symbols are defined as follows:

WARNING

Indication of a potential hazard situation. If not avoided, the result could be death or serious injury.

2.2 Typographical conventions

This symbol indicates information that may make the use of this product easier.

3 Description

3.1 Product overview (see page 2)

1 Alcohol meter
2 L E D r i n g
Button
4 Grip zone on mouthpiece
5 Mouthpiece
6 Safety cap
7 Mouthpiece receptacle
8 Display
9 USB connection (not for charging the device, for servicing only)
10 Loudspeaker

3.2 Intended use

The Dräger Alcotest® 3820 ^1) alcohol meter is used to measure the alcohol concentration in human breath. The measurement is used to calculate the alcohol intoxication level of persons. It is not permitted for therapeutic measures to be initiated on the basis of the measurement.

4 Use

WARNING

Small parts of the instrument may become detached and be swallowed.

The instrument is not intended for children under 3 years.

4.1 Prerequisites for use

The instrument is factory-calibrated when delivered. If the calibration date is longer ago than 12 months, the instrument should be calibrated, e.g. by DragerService. Optional: if the calibration date has been exceeded, an error message is displayed after the startup screen.

After the last alcohol intake, wait approx. 15 minutes before a measurement is carried out. Alcohol residues that are still in the mouth may cause incorrect measuring values. This may also occur due to by aromatic drinks (e.g. fruit juices), alcoholic mouth sprays, medicines and drops, as well as by burping and vomiting. Rinsing the mouth with water or non-alcoholic drinks does not replace the wait time!

4.2 Carrying out a breath sample

A new mouthpiece must be inserted for each test subject.

i Do not allow any high alcohol concentrations on the sensor, e.g. by rinsing the mouth with a high proof alcohol shortly before the measurement, as this will shorten the service life of the sensor.

1. Insert a new mouthpiece (order no. 83 25 250) in the mouthpiece receptacle (see page 2).
2. Keep the button pressed for approx. 1 second until the startup screen is displayed.
3. READY is displayed after approx. 4 seconds. The instrument is ready to use.
4. Blow evenly and without interruptions into the mouthpiece. Do not cover the outlet opening on the mouthpiece with your hand. A continuous tone is sounded.

The test result is displayed after 3 to 25 seconds (depending on the instrument temperature and the measured concentration).

Carry out another measurement

• To prepare a new measurement, press the button briefly. During the recovery time of the sensor (see "Technical data" on page 20) is READY displayed.

4.3 Switching off the instrument

• Keep button pressed. The instrument will switch off after approx. 3 seconds.

The instrument will switch off automatically approx. 120 s after the last use.

Switching off the instrument does not reduce the waiting period until it is ready to take a measurement!

4.4 Removing the mouthpiece

1. Pull the mouthpiece upwards out of the mouthpiece receptacle.
2. Dispose of the mouthpiece in accordance with local regulations.

4.5 Settings

To display the menu:

1. Briefly press the button. The menu display is displayed. If the button is not pressed for 3 seconds, return to measurement readiness.
2. Press the button again briefly (within 3 seconds). The menu is displayed.

The menu is exited automatically after 30 seconds with the button not being pressed.

The following settings can be made in the menu:

• Measurements
• Next service
• Date & time
• Contrast
• Loudspeaker
  Language
• Software version

To navigate within the menu:

• Briefly press the button.

When the last entry is reached, the next button press will go back up to the top.

To confirm in the selected function / input:

• Press and hold the button.

To exit the menu:

In the submenus, select the Back menu option.
In the main menu, select the Measuring menu option.

To change values:

1. Tap the button until you reach the required setting.
2. Press the button to confirm the setting.

5 Troubleshooting

An error message is displayed in the event of instrument faults. The number that appears below the message is used for service functions. If the fault remains after switching on and off several times, contact DrägerService or your dealer.

Fault / message Cause Remedy
Instrument cannot be switched on.	Battery drained. Contact DrägerService or dealer.
Volume too low / sample invalid.	Test subject is blowing intermittently or not hard enough.	Blow more strongly and without interruptions into the mouthpiece.
Instrument outside temperature range	Instrument too hot or too cold.	Allow the instrument to cool down or become warmer.

Fault / message Cause Remedy

↑↑↑ (Measuring range exceeded)	Measuring range exceeded. Alcohol residues that are still in the mouth may cause incorrect measuring values.	There must be an interval of at least 15 minutes after alcohol has been taken into the mouth (see page 16). To repeat, press the button.
Volume too small Breath sample volume too small.		Repeat breath sample.
Volume too great Measuring range exceeded.		Repeat breath sample.
Sample interruption Irregular outward breath, abrupt end or intake		Repeat breath sample.
Fault number Instrument fault Switch the instrument off and on again. If the fault remains, contact DrägerService or dealer.

6 Maintenance

Have the instrument calibrated as signs of drift increase the measurement uncertainty over time. Calibration and maintenance should only be carried out by authorised persons, e.g. DrägerService.

Cleaning

Do not immerse in fluids and avoid contact of fluids with the connections. Do not use any cleaning agents containing alcohol, solvents or substances containing limonene. Wipe down the instrument with a disposable cloth.

7 Disposal

This product must not be disposed of as household waste. This is indicated by the adjacent icon. You can return this product to Dräger free of charge. For information please contact the national marketing organisations and Dräger.

8 Technical data

Measuring principle Electrochemical sensor

Measuring range

Breath alcohol concentration 0.00 to 2.50 mg/l(Ethanol mass per breath volume at 34 °C and 1013 hPa.)

Blood alcohol concentration 0.00 to 5.00 ‰(Ethanol mass per blood volume or mass at 20 °C and 1013 hPa.)

For the above data, a conversion factor of 2100 is used for breath and blood alcohol concentration data (factory setting, country-specific conversion factors can be configured).

Measurement modules

mg/l, μg/100 ml, μg%, μg/l, g/210 l, g/l ‰, %, mg/100 ml, mg%, mg/ml (country-specific configuration)

Ambient conditions

During operation -5 to +50^

10 to 100% rel. hum.

(non-condensing)

600 to 1300 hPa

During storage -20 to +70^

Sampling

Respiratory volume >1.2 litres (preset)

Breath flow >10~l/min (default)

Duration of breath >2 s (default)

Measurement accuracy

Standard deviation of the repeatability with ethyl alcohol standard

up to 0.50mg / l 0.008 mg/l

≥ 0.50 mg / l 1.7 % of the measured value

up to 1.00 ‰ 0.017 ‰ or

≥ 1.00 ‰ 1.7 % of the measured value

whichever value is higher

Sensitivity drift Typically 0.4% of the measured

value per month

Wait time for measurement readiness following a previous measurement with:

0.25 mg/litre 20 s 0.50 ‰ 20 s

0.50 mg/litre 40 s 1.00 ‰ 40 s

1.00 mg/litre 80 s 2.00 ‰ 80 s

1.50 mg/litre 120 s >3.00 ‰ 120 s

Calibration every 12 months
Dimensions	50 mm x 133 mm x 29 mm (W x H x D)
Weight approx. 130 g
Power supply 1 x 3 V CR123A
The battery is designed for the service life of the instrument with average use.
Protection class IP 52
CE Mark Electromagnetic Compatibility (Directive 2004/108/EC).
Configuration possible, see name plate

(directive 2004/108/CE)

10 a 100% umid. rel.

(sem condensacao)

600 a 1300 hPa

Durante a armazenagem -20a + 70^

Coleta de amostra

Volume expelled >1,2L (pré-configurado)

Fluxo expiry >10 L/min (pré-configurado)

Edition 02 - November 2015

Subject to alteration