1. పరిచయం
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. ప్యాకేజీ విషయాలు
అన్ని వస్తువులు ఉన్నాయని మరియు పాడైపోకుండా ఉన్నాయని నిర్ధారించుకోవడానికి దయచేసి అందిన తర్వాత ప్యాకేజీ కంటెంట్లను తనిఖీ చేయండి:
- 1 x Gas Leak Detector (Host)
- 1 x రంగు పెట్టె
- 1 x క్లాత్ బ్యాగ్
- 1 x ఇంగ్లీష్ మాన్యువల్

3. ఉత్పత్తి లక్షణాలు
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.
- అత్యంత సున్నితమైన సెమీకండక్టర్ సెన్సార్.
- 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).
- తక్కువ బ్యాటరీ ప్రాంప్ట్.
- ఆటోమేటిక్ పవర్ ఆఫ్ ఫంక్షన్.



4. సెటప్
4.1 Battery Installation (TA8408A/B)
- పరికరం వెనుక భాగంలో బ్యాటరీ కంపార్ట్మెంట్ కవర్ను గుర్తించండి.
- కవర్ తెరవండి.
- Insert three (3) 1.5V AAA batteries, ensuring correct polarity.
- బ్యాటరీ కంపార్ట్మెంట్ కవర్ను సురక్షితంగా మూసివేయండి.

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.
- Connect the other end of the USB cable to a suitable USB power adapter (not included).
- The device will indicate charging status on the display.

4.3 పరికరం ముగిసిందిview
Familiarize yourself with the main components and controls of your gas leak detector:

- సెన్సార్: Located at the tip of the goose neck, detects gas.
- Goose Neck: Flexible probe for reaching confined spaces.
- LCD డిస్ప్లే: Shows gas concentration, sensitivity level, and other indicators.
- పవర్ బటన్: పరికరాన్ని ఆన్/ఆఫ్ చేస్తుంది.
- 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): Switches between Celsius and Fahrenheit for ambient temperature display.
- Speaker Icon Button (TA8408B/C): Toggles alarm sound on/off.
- ZERO బటన్: Initiates zero calibration.
5. ఆపరేటింగ్ సూచనలు
5.1 పవర్ ఆన్/ఆఫ్
- 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 జీరో కాలిబ్రేషన్
- 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 సున్నితత్వం సర్దుబాటు
- 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 గ్యాస్ డిటెక్షన్
- 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.
- PPM: 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. నిర్వహణ
6.1 శుభ్రపరచడం
పరికరాన్ని మృదువైన, డితో తుడవండిamp cloth. Do not use abrasive cleaners or solvents. Ensure the sensor tip is kept clean and free from obstructions.
6.2 నిల్వ
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. ట్రబుల్షూటింగ్
- పరికరం పవర్ ఆన్ చేయదు: 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. స్పెసిఫికేషన్లు
The following table details the technical parameters for the TASI TA8408 Series Gas Leak Detectors:
| పరామితి | TA8408A | TA8408B పరిచయం | TA8408C |
|---|---|---|---|
| ప్రదర్శన పరిధి | అనలాగ్ బార్ | 0~9999ppm / 0.00~20.00%LEL | 0~9999ppm / 0.00~20.00%LEL |
| డిటెక్షన్ గ్యాస్ | Acetone, acetylene, alcohol, ammonia, benzene, butane, ethanol, ethylene oxide, gasoline, ethane, hydrogen, methane, naphtha natural gas, paint thinner, propane, solvents, etc. | ||
| ఖచ్చితత్వం | ±10% FS (methane) | ||
| సున్నితత్వం | <50ppm (methane) | ||
| ప్రతిస్పందన సమయం | 2లు | ||
| సన్నాహక సమయం | సుమారు 30సె | ||
| ప్రదర్శన రకం | అనలాగ్ బార్ | Digital analog bar | Digital analog bar |
| అలారం మోడ్ | సౌండ్ మరియు లైట్ అలారం | ||
| జీరో మోడ్ | స్వయంచాలకంగా సున్నా | Auto and Manual zero | Auto and Manual zero |
| యూనిట్ మార్పిడి | × | √ √ ఐడియస్ | √ √ ఐడియస్ |
| Ambient Temp. Display | × | √ √ ఐడియస్ | √ √ ఐడియస్ |
| Alarm On/Off Function | × | √ √ ఐడియస్ | √ √ ఐడియస్ |
| High/Low Sensitivity Selection | √ √ ఐడియస్ | ||
| తక్కువ బ్యాటరీ నోటీసు | √ √ ఐడియస్ | ||
| ఆటో ఆఫ్ | √ √ ఐడియస్ | ||
| Goose Neck Hose | దాదాపు 40 సెం.మీ | ||
| పని వాతావరణం | 0~50℃ / 20~80%RH | ||
| నిల్వ ఉష్ణోగ్రత | -10℃~60℃ / 20~80%RH | ||
| బరువు | సుమారు 420 గ్రా (బ్యాటరీతో సహా) | ||
| విద్యుత్ సరఫరా | 3*1.5V AAA బ్యాటరీ | 3*1.5V AAA బ్యాటరీ | USB Lithium Direct Charge |
| ఉత్పత్తి పరిమాణం | 153x60x30mm | ||

9 వినియోగదారు చిట్కాలు
- 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. వారంటీ మరియు మద్దతు
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.





