一、簡介
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. 包裝內容
收到包裹後請立即檢查包裹內容，確保所有物品齊全且完好無損：
- 1 x Gas Leak Detector (Host)
- 1 個彩盒
- 1 個布袋
- 1 本英文手冊
3.產品特點
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.
- 反應速度快，小於2秒。
- 高靈敏度半導體感測器。
- 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).
- 電池電量低提示。
- 自動斷電功能。
4. 設定
4.1 Battery Installation (TA8408A/B)
- 找到設備背面的電池倉蓋。
- 打開蓋子。
- Insert three (3) 1.5V AAA batteries, ensuring correct polarity.
- 關緊電池盒蓋。
4.2 Charging (TA8408C)
The TA8408C model features a built-in USB Lithium Direct Charge battery.
- 將提供的 USB 連接線連接到裝置的充電埠。
- 將 USB 連接線的另一端連接到適當的 USB 電源轉接器（不包含在內）。
- The device will indicate charging status on the display.
4.3 設備結束view
Familiarize yourself with the main components and controls of your gas leak detector:
- 感應器: Located at the tip of the goose neck, detects gas.
- Goose Neck: Flexible probe for reaching confined spaces.
- 液晶顯示幕： Shows gas concentration, sensitivity level, and other indicators.
- 電源按鈕： 打開/關閉設備。
- SENS Button (Lo/Mid/Hi): 調整靈敏度等級。
- PPM/%LEL Button (TA8408B/C): Switches between PPM and %LEL concentration units.
- C/F Button (TA8408B/C): 環境溫度顯示可在攝氏和華氏之間切換。
- Speaker Icon Button (TA8408B/C): Toggles alarm sound on/off.
- 歸零按鈕： Initiates zero calibration.
5. 操作說明
5.1 電源開關
- Press and hold the Power Button to turn the device ON or OFF.
- 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 調零
- 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 靈敏度調節
- 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 氣體檢測
- 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.
- 百萬分之一： 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、維護保養
6.1 清潔
用柔軟的 d 擦拭設備amp cloth. Do not use abrasive cleaners or solvents. Ensure the sensor tip is kept clean and free from obstructions.
6.2 儲存
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。 故障排除
- 設備無法開機： 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. 規格
The following table details the technical parameters for the TASI TA8408 Series Gas Leak Detectors:
| 範圍 | TA8408A | TA8408B | TA8408C |
|---|---|---|---|
| 顯示範圍 | 模擬條 | 0~9999ppm / 0.00~20.00%LEL | 0~9999ppm / 0.00~20.00%LEL |
| 檢測氣體 | Acetone, acetylene, alcohol, ammonia, benzene, butane, ethanol, ethylene oxide, gasoline, ethane, hydrogen, methane, naphtha natural gas, paint thinner, propane, solvents, etc. | ||
| 準確性 | ±10% FS (methane) | ||
| 靈敏度 | ＜50ppm (methane) | ||
| 回應時間 | ＜2s | ||
| 預熱時間 | 約30秒 | ||
| 顯示類型 | 模擬條 | Digital analog bar | Digital analog bar |
| 警報模式 | 聲光報警 | ||
| 零模式 | 自動歸零 | Auto and Manual zero | Auto and Manual zero |
| 單位切換 | × | √ | √ |
| Ambient Temp. Display | × | √ | √ |
| Alarm On/Off Function | × | √ | √ |
| High/Low Sensitivity Selection | √ | ||
| 低電量通知 | √ | ||
| 自動關閉 | √ | ||
| Goose Neck Hose | 約40厘米 | ||
| 工作環境 | 0~50℃ / 20~80%RH | ||
| 儲存溫度 | -10℃~60℃ / 20~80%RH | ||
| 重量 | 約420g（含電池） | ||
| 電源 | 3節1.5V AAA電池 | 3節1.5V AAA電池 | USB Lithium Direct Charge |
| 產品尺寸 | 153x60x30毫米 | ||
9. 用戶提示
- 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. 保固和支持
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.
