1. 서론
The TASI TA8408 Series Gas Leak Detector is a portable device designed for the detection of various volatile combustible gases. It features a highly sensitive sensor, quick response time, and provides both sound and light alarms to indicate gas presence. This manual provides essential information for the safe and effective use of your gas leak detector.

2. 패키지 내용
수령 시 패키지 내용물을 확인하여 모든 품목이 들어 있고 손상되지 않았는지 확인하세요.
- 1 x Gas Leak Detector (Host)
- 1 x 색상 상자
- 1 x 천 가방
- 1 x 영어 설명서

3. 제품 특징
The TASI TA8408 Series Gas Leak Detector offers the following key features:
- Portable design for easy handling.
- High/low sensitivity switching for varied detection needs.
- Quick response time of less than 2 seconds.
- 고감도 반도체 센서.
- Concentration unit selection (for TA8408B/C models).
- Ability to detect multiple volatile combustible gases.
- VA color screen display.
- Sound and light alarm for clear indication of gas presence.
- Flexible goose neck hose (approximately 40cm or 15.74 inches).
- 배터리 부족 알림.
- 자동 전원 끄기 기능.



4. 설정
4.1 Battery Installation (TA8408A/B)
- 장치 뒷면에서 배터리 덮개를 찾으세요.
- 덮개를 엽니다.
- Insert three (3) 1.5V AAA batteries, ensuring correct polarity.
- 배터리 덮개를 단단히 닫으세요.

4.2 Charging (TA8408C)
The TA8408C model features a built-in USB Lithium Direct Charge battery.
- Connect the provided USB cable to the charging port on the device.
- USB 케이블의 다른 쪽 끝을 적합한 USB 전원 어댑터(포함되지 않음)에 연결합니다.
- The device will indicate charging status on the display.

4.3 디바이스 오버view
Familiarize yourself with the main components and controls of your gas leak detector:

- 감지기: Located at the tip of the goose neck, detects gas.
- Goose Neck: Flexible probe for reaching confined spaces.
- LCD 디스플레이: Shows gas concentration, sensitivity level, and other indicators.
- 전원 버튼: 장치를 켜거나 끕니다.
- SENS Button (Lo/Mid/Hi): Adjusts sensitivity level.
- PPM/%LEL Button (TA8408B/C): Switches between PPM and %LEL concentration units.
- C/F Button (TA8408B/C): 주변 온도 표시 단위를 섭씨와 화씨 사이로 전환합니다.
- Speaker Icon Button (TA8408B/C): Toggles alarm sound on/off.
- 제로 버튼: Initiates zero calibration.
5. 사용 설명서
5.1 전원 켜기/끄기
- 전원 버튼을 길게 눌러 기기를 켜거나 끄세요.
- Upon powering on, the device will undergo a warm-up period of approximately 30 seconds. The display will show "WAIT..." during this time.
5.2 제로 캘리브레이션
- For TA8408A, the device performs auto zero calibration.
- For TA8408B/C, the device performs auto zero calibration upon startup. You can also perform manual zero calibration by pressing the "ZERO" button in a clean air environment.
5.3 감도 조정
- Press the "SENS" button to cycle through sensitivity levels: Low (Lo), Medium (Mid), and High (Hi).
- Higher sensitivity is suitable for detecting small leaks, while lower sensitivity helps to pinpoint larger leaks or avoid false alarms in environments with trace gases.
5.4 가스 감지
- Ensure the device has completed its warm-up and zero calibration.
- Slowly move the sensor (goose neck tip) towards the suspected leak area.
- Observe the display and listen for the alarm. The response time is less than 2 seconds.
- The device will emit a sound and light alarm when gas is detected. The intensity of the alarm and the display reading will increase with higher gas concentration.

5.5 Display Interpretation (TA8408B/C)
The TA8408B/C models feature a digital analog bar display with specific alarm thresholds:
- SENS-H: High sensitivity, alarm when concentration is ≥ 1.00% LEL (500 PPM).
- SENS-L: Low sensitivity, alarm when concentration is ≥ 10.00% LEL (5000 PPM).
- %LEL: Lower Explosive Limit percentage.
- 피피엠: Parts Per Million, indicating a few percent of the leakage.

5.6 Unit Switching (TA8408B/C)
- Press the "PPM/%LEL" button to switch between Parts Per Million (PPM) and Lower Explosive Limit (%LEL) units for gas concentration display.
- Press the "C/F" button to switch between Celsius (℃) and Fahrenheit (℉) for ambient temperature display.
5.7 Alarm Sound On/Off (TA8408B/C)
- Press the Speaker Icon button to toggle the audible alarm sound on or off. The visual alarm will remain active regardless of the sound setting.
6. 유지관리
6.1 청소
부드러운 천으로 장치를 닦으십시오. damp 천을 사용하십시오. 연마성 세척제나 용제를 사용하지 마십시오. 센서 끝부분이 깨끗하고 막히지 않도록 하십시오.
6.2 보관
When not in use, store the device in its cloth bag in a cool, dry place. The recommended storage temperature is -10℃ to 60℃ (14℉ to 140℉) with 20% to 80% relative humidity.
6.3 Battery Replacement (TA8408A/B)
When the low battery notice appears on the display, replace the AAA batteries as described in Section 4.1.
7. 문제 해결
- 기기의 전원이 켜지지 않습니다: Check battery installation (TA8408A/B) or charge level (TA8408C). Ensure batteries are fresh and correctly inserted.
- No gas detection or inconsistent readings:
- Ensure the sensor tip is clean and unobstructed.
- Verify the device has completed its warm-up period.
- Perform zero calibration in a clean air environment.
- Adjust sensitivity to a higher level if detecting small leaks.
- Ensure the device is used within its specified operating environment.
- Alarm sounds continuously in clean air: Perform zero calibration in a fresh air environment.
8. 사양
The following table details the technical parameters for the TASI TA8408 Series Gas Leak Detectors:
| 매개변수 | TA8408A | TA8408B | TA8408C |
|---|---|---|---|
| 디스플레이 범위 | 아날로그 바 | 0~9999ppm / 0.00~20.00%LEL | 0~9999ppm / 0.00~20.00%LEL |
| 감지 가스 | Acetone, acetylene, alcohol, ammonia, benzene, butane, ethanol, ethylene oxide, gasoline, ethane, hydrogen, methane, naphtha natural gas, paint thinner, propane, solvents, etc. | ||
| 정확성 | ±10% FS (methane) | ||
| 감광도 | <50ppm (methane) | ||
| 응답 시간 | <2초 | ||
| 워밍업 시간 | 약 30초 | ||
| 디스플레이 유형 | 아날로그 바 | Digital analog bar | Digital analog bar |
| 알람 모드 | 소리와 빛 알람 | ||
| 제로 모드 | 자동 0 | Auto and Manual zero | Auto and Manual zero |
| 단위 전환 | × | √ | √ |
| Ambient Temp. Display | × | √ | √ |
| Alarm On/Off Function | × | √ | √ |
| High/Low Sensitivity Selection | √ | ||
| 배터리 부족 알림 | √ | ||
| 자동 꺼짐 | √ | ||
| Goose Neck Hose | 약 40cm | ||
| 작업 환경 | 0~50℃ / 20~80%RH | ||
| 보관 온도 | -10℃~60℃ / 20~80%RH | ||
| 무게 | 약 420g (배터리 포함) | ||
| 전원 공급 장치 | 3*1.5V AAA 배터리 | 3*1.5V AAA 배터리 | USB Lithium Direct Charge |
| 제품 크기 | 153x60x30mm | ||

9. 사용자 팁
- Always perform a zero calibration in a fresh air environment before starting your detection work to ensure accurate readings.
- When searching for small leaks, use the high sensitivity setting and move the probe slowly to allow the sensor enough time to react.
- For pinpointing the exact source of a leak, start with high sensitivity to detect the general area, then switch to lower sensitivity to narrow down the location.
- Keep the sensor tip clean to prevent false readings or reduced sensitivity.
- Be aware of the auto-off function to conserve battery life.
10. 보증 및 지원
For warranty information, technical support, or service inquiries, please refer to the contact information provided with your purchase documentation or contact the seller directly. Keep your purchase receipt as proof of purchase.





