Alcofind AF-50 AD User manual

Instruction Manual
Digital Breathalyzer AF-50 AD
·KEY FEATURES
- OLED DISPLAY
Helps to read various information including total test number, date, unit and other options
- 100 TEST MEMORIES
Saves the test result including test date and time
- USER-FRIENDLY INTERFACE
Enables to change device setting easily
- GRAPH MODE
Allows to track all test results efficiently
- CALIBRATION REMINDER
Helps get on-time calibration by letting users know about the remaining days to the next
calibration
* Please read the user’s manual carefully before use.

Table of contents
1. Important Safety Information
2. Introduction
3. Contents
4. Name of each part
5. Basic Operation
5.1 Preparation
5.2 Operation with app
5.3 Operation without app
5.4 Symbols & Readings
6. Basic Menu Options
6.1 TEST RESULT
6.2 TEST RESULT-G
6.3 ALARM LIMIT
6.4 UNIT
6.5 BRIGHTNESS
6.6 SOUND
6.7 INFORMATION
6.8 PIN CODE
7. Advanced Menu Options
7.1 TEST LIMIT
7.2 SET TIME
7.3 DATE LIMIT
7.4 CHANGE PIN
8. Specification
9. Contact Information

1. Important Safety Information
- Before using the alcohol tester, read all instruction manual carefully and perform the test.
- Recommended to use calibration service every 12 months or after 500 times tests by experts. The
use without periodic calibration service may result in invalid result.
- The test should be performed after 30 minutes after eating, drinking or smoking. Failure to wait
30 minutes may result in invalid results or incorrect results.
- Residual alcohol in the mouth can distort the measurement.
- Do not immerse in water.
- Aromatic drinks or mouth sprays containing alcohol can interfere with measurements. In this case,
wait for 30 minutes or rinse the mouth with pure water.
- Do not permit to blow cigarette smoke into the tester which may damage the sensor.
- Don’t do the drunk driving and even small amount of alcohol may cause impairment in normal
driving operation.
- Do not use this device as a tool to determine “drink and drive”. The manufacturer and the sellers
will not take any legal responsibility for the test results.
- When not used for a long time, keep the device after taking out the batteries. In case of testing
after long-term storage, there might be high tolerance of test results for the first test.
- Replace the batteries when the battery indicator icon reaches empty for the accuracy reason.
- In case the test result is higher than 0.1 %BAC (1.0 g/L) and you try again without interval, then
the warm-up time might be delayed.
- Perform a test within the operating temperature, which is specified in the instruction manual.
- Blowing hard may cause damage to the sensor as saliva flows into the sensor.
- Do not store the device in the place where the temperature and humidity are high. Recommended
it to store at room temperature.
- Do not suck in air during the test.
- Recommended using clean mouthpiece during the test for accurate measurements.
- The device including mouthpieces should be kept out of reach of children under 12 years of age.

2. Introduction
Thank you for purchasing our alcohol tester, which is a professional use alcohol tester with high-
reliability. It can be used in the law enforcement, hospital, school and many other industrial fields.
It measures estimated B.A.C (Blood Alcohol Content) in human breath by means of a premium fuel
cell sensor which is highly durable and providing accurate breath alcohol results.
3. Contents
- Digital Breathalyzer: AF-50
- Two AA alkaline batteries
- 6 pieces of mouthpiece
- Carrying case
- Instruction manual
4. Name of each part
1
2
4
3
5
6
7

1. Mouthpiece
2. Mouthpiece slot
3. Status LED
4. High-Quality OLED Display
5. Power button
6. Menu button
7. Battery cover
5. Basic Operation
5.1 Preparation
Press
and push
down
the cover
to open
Insert two AA
batteries
(1.5V Alkaline)

Install two AA Batteries in the battery compartments by paying attention to the battery polarity.
Insert a mouthpiece into the slot on the side of the alcohol tester.
Ensure whether it securely fits or not.
Extra mouthpieces should be used for other person’s testing for sanitary reasons.
5.2 Operation with app
Step 1. Open the app.
Note.
-Bluetooth must first be switched on in order to connect to the device. (Go to the Settings on your
smartphone and turn on Bluetooth)
Step 2. To turn on the device, press and hold Power button for 2 seconds.
Step 3. If pairing is successful, the screen on your smartphone will show "START TEST". Tap "START
TEST" on your smartphone.

Note.
-In case of the first pairing process, a PIN Code request will be displayed. Input "000000" for PIN
Code.
Note.
-The app is set to remember and search the device that has paired last time for 30 seconds.
-If the app is not able to find the previously paired device for 30 seconds, the app will show the
following message.

-If you want the app to find another device, press "OK", and if you want the app to keep finding
the previously paired device, press "Cancel".
Step 4. Choose a user. Each test result will be saved separately according to the selection of the
user. All history of saved test results are viewable from the Graphic Icon at the bottom of the menu.
Step 5. The circular bar on the app indicates the progress of warm-up. When warming up gage
reaches 95, take a deep breath and get ready for blowing.

Step 6. When "Start blowing" is displayed, blow for 5 seconds into the mouthpiece until the gage
reaches 100 or you feel the air has been pulled through the air pump in the device with a click.
Note.
- If the camera feature is enabled, the camera will automatically capture the image of a user once
the blowing has been completed.
Step 7. If a sufficient breath sample is taken correctly, the "Analyzing data" will be shown on the
app.

Note.
- If insufficient sample is taken, an error message will displayed. To test again, press "OK" on the
app.
- In the graph, the test results performed without app will be shown as "D".
Step 8. The estimated BAC level will be displayed on the app in a few seconds. In this page, the
app enables you to make a memo which is viewable with test results from the Graph icon, and the
test results can be also shareable via Text message, Facebook, or Twitter.
Step 9. Tap either "Retest" or "BAC level" on the app (or press Power Button on the device) to test
again without selecting a user. If you want to start test again from the beginning, tap the Home
Test date
Test result
Unit
Graph of the previous and current results

Icon at the bottom menu.
Step 10. Press and hold Power button on the device for 2 seconds to turn it off when you have
finished testing.
Note.
- The device will turn off automatically if the device is not in use for 2 minutes.
- If you exit the app while the device is working with the app, all Blue, Red and Green LEDs on the
device will flicker together. Press Power Button on the device to restart.
5.3 Operation without app
Step 1. Power On / Turn on the device
Press the power button for 2 seconds to turn on the device. The alarm limit, date and time set in
the device will be displayed.
Step 2. Warm-up
The warm-up process will be started automatically. When the progress bar fills up, the 'START BLOW'
will be displayed with double beep sound.
Note. Press the menu button shortly in this step if you want to check the 10 previous test results

with a bar graph, which enables you to check visually whether your test results are higher than the
alarm limit that you have set in the menu.
Step 3. Measurement
Blow through the mouthpiece until the device beeps twice.
Note. The blowing time may vary depending on set value.
Step 4. Analyzing
When the sampling is successful, the analyzing process will be started automatically.
Step 5. Test result
After a few seconds (depending on the alcohol level), the estimated BAC will be displayed for 4
seconds, and the power button and menu button will be deactivated during this time. Depending
on the test result, the status LED will be flashed as followings:
1) Flashes red LED if the test result is higher than the alarm limit
2) Flashes green LED if the test result is equal or lower than the alarm limit
Test Number
Test Time
Previous result

Step 6. After test
After displaying the test result for 4 seconds, the display will
change to enable you to conduct the following functions:
1) RETEST - Press the power button shortly if you want to test again,
2) GRAPH - Press the menu button shortly if you want to check the 10 previous test results with a
bar graph, which enables you to check visually whether your test results are higher than the alarm
limit that you have set in the menu.
3) POWER OFF - Press and hold the power button for 2 seconds if you want to turn off the device
manually.
Note: The device will turn off automatically if it is not in use for 3 minutes.
Test result
Alarm limit
▲ : The most recent test result
◆ : The test result with an approved breath sample
X: The test without an approved breath sample

5.4 Symbols & Troubleshooting
Status Display
Troubleshooting guide
MESSAGE
WHAT IT MEANS
ACTION
The sampling volume or blow power is
not enough to analyze the breath
sample.
Press the power button to
perform a new retest.
The testing cannot be performed
because the battery is low.
Replace with new batteries.
The calibration is required because the
device has exceeded its recommended
period of use.
Contact your local distributor
or customer service center for
proper recalibration service.
The calibration is required because the
device has exceeded its recommended
number of test.
Contact your local distributor
or customer service center for
proper recalibration service.
The excessive saliva went into the
sensor during the test.
Wait 20 minutes, and then try
again. Contact your seller for
customer service if this error
code is displayed for a long time.
The testing cannot be performed
because the device is powered on
outside of operating temperature.
Repeat the test after the device
has reached the temperature
within the operating range.
Remaining
battery power
Remaining
calibration
date
Total number
of tests
performed

The testing cannot be performed
because the device has tested more
than 10,000 times.
Contact your local distributor
or customer service center for
proper recalibration service.
6. Basic Menu Options
*How to enter the menu options
- In Warm-up process (Step 2), press the menu button for 2 seconds.
*How to move/select/exit the menu options.
- To move the cursor up, press the power button shortly.
- To move the cursor down, press the menu button shortly.
- To enter the selected option, press the power button for 2 seconds.
- To return to warm up process, press the menu button for 2 seconds.
*How to save the selected setting
- Press and hold the power button and the menu button together for 2 seconds until a beep is
heard.
6.1 TEST RESULT

1. Test Number
2. Test result
3. Test date
4. Test time
The test results can be checked with test number, date and time.
Note: The most recent test result will appear first.
* To see the previous result, press the power button shortly.
* To see the next result, press the menu button shortly.
* To return to the menu list, press the menu button for 2 seconds.
6.2 TEST RESULT-G
Alarm limit
Current page#
Total page#
▲ : The most recent test result
◆ : The test result with an approved breath sample
X: The test without an approved breath sample

The test results can be checked with a bar graph, which enables you to check visually whether your
test results are higher than the alarm limit that you have set in the menu.
* To see the previous page, press the power button shortly.
* To see the next page, press the menu button shortly.
* To return to the menu list, press the menu button for 2 seconds.
6.3 ALARM LIMIT
The limit value for alarm can be set in this menu.
The settable value range:
-0.010 ~ 0.100 %BAC (0.10 ~ 1.00 ‰)
-OFF
* To raise the alarm limit, press the power button shortly.
* To reduce the alarm limit, press the menu button shortly.
* To save the setting and return to the menu list, press and hold the power button and the menu
button together for 2 seconds.
* To return to the menu list without saving, press the menu button for 2 seconds.

6.4 UNIT
The measurement unit can be set in this menu.
The settable value range:
-ug/L, mg/L, ‰, mg/100mL, %BAC.
* To move the cursor up, press the power button shortly.
* To move the cursor down, press the menu button shortly.
* To save the setting and return to the menu list, press and hold the power button and the menu
button together for 2 seconds.
* To return to the menu list without saving, press the menu button for 2 seconds.
6.5 BRIGHTNESS
The brightness of the display can be set in this menu.
The settable value range:
-HIGH, MID, LOW
* To move the cursor up, press the power button shortly.

* To move the cursor down, press the menu button shortly.
* To save the setting and return to the menu list, press and hold the power button and the menu
button together for 2 seconds.
* To return to the menu list without saving, press the menu button for 2 seconds.
6.6 SOUND
The sound can be set in this menu.
The settable value range:
-HIGH, MID, LOW, OFF
* To move the cursor up, press the power button shortly.
* To move the cursor down, press the menu button shortly.
* To save the setting and return to the menu list, press and hold the power button and the menu
button together for 2 seconds.
* To return to the menu list without saving, press the menu button for 2 seconds.
6.7 INFORMATION

The following information about the device can be checked in this menu.
1. Version of Firmware
2. The calibration date
3. The total number of tests performed
* To return to the menu list, press the menu button for 2 seconds.
6.8 PIN CODE
In this menu, the correct PIN code must be entered to move into the advanced menu option.
The default PIN code is 0000, and the PIN code is adjustable from 0000 to 9999 in the advanced
menu option.
* To change digits of PIN code, press the power button for 2 seconds.
* To raise the number of PIN code, press the power button shortly.
* To reduce the number of PIN code, press the menu button shortly.
* To enter the advanced menu option, press and hold the power button and the menu button
together for 2 seconds.
* To return to menu list, press the menu button for 2 seconds.