1. Bubuka
The TASI TA641B is a high-precision handheld anemometer designed for measuring wind speed, air temperature, and ambient humidity. It features an LCD display with backlight, data hold function, and automatic power-off for energy saving. This manual provides detailed instructions for the safe and effective use of your TA641B anemometer.

2. Émbaran Kasalametan
Please read and understand all safety warnings and operating instructions before using this instrument. Failure to do so may result in injury or damage to the device.
2.1 Kasalametan Umum
- Do not operate the device in explosive atmospheres or in the presence of flammable gases or fumes.
- Jauhkeun alat ieu tina cai sareng kalembaban pikeun nyegah sengatan listrik atanapi karusakan.
- Ulah nyobian ngabongkar atanapi ngarobih alatna. Perbaikan ngan ukur kedah dilakukeun ku jalmi anu mumpuni.
- Hindarkeun ngaragragkeun alatna atanapi mangaruhan kana tabrakan anu kuat.
- Bersihkeun alat ku kaen anu lemes sareng garing. Ulah make cleaners abrasive atawa pangleyur.
2.2 Kasalametan Batré
- The device requires 3x 1.5V AAA (R03/LR03) batteries. Ensure correct polarity when installing.
- Ulah campur batré heubeul jeung anyar, atawa tipena béda accu.
- Cabut batré upami alat moal dianggo kanggo waktos anu panjang pikeun nyegah bocor.
- Buang batré anu dipaké nurutkeun peraturan lokal.
3. Produk Langkungview
The TASI TA641B anemometer is equipped with an 8-fan blade design for low friction and high precision, ensuring a sensitive response to wind. The high-definition LCD screen provides clear readings.

3.1 Komponén jeung kadali

Key components and controls include:
- Fan Blade: Measures air velocity.
- Layar LCD: Displays measurements and status indicators.
- Tombol Daya: Turns the device on/off. Long press for backlight.
- HOLD/UNIT Button: Toggles data hold and switches measurement units.
- Tombol MAX/MIN: Displays maximum, minimum, and average values.
- Hi/Low Buttons: Used for setting upper and lower limits (specific functionality may vary by model/firmware).
- Kompartemen batré: Located on the rear, for AAA batteries.
3.2 Indikator Tampilan LCD

The LCD screen shows various indicators:
- APO: Auto Power Off indicator.
- Tingkat batré: Shows remaining battery power.
- Hi/Low: Upper/Lower limit alarm indicators.
- AUTO/HOLD/MAX/AVG/MIN: Measurement mode indicators.
- Laju hawa: Main reading for wind speed.
- Bft: Beaufort scale indicator.
- Kalembaban: Ambient humidity reading (for TA641B).
- Suhu: Air temperature reading.
- Unit: m/s, ft/m, km/h, mile/h, knots for air velocity; °C, °F for temperature; %RH for humidity.
4. Setélan
4.1 Pamasangan batré
- Locate the battery compartment cover on the back of the anemometer.
- Geser atawa cabut panutup panutup pikeun mukakeunana.
- Insert 3x 1.5V AAA (R03/LR03) batteries, ensuring the correct polarity (+/-) as indicated inside the compartment.
- Ganti panutup kompartemen batré aman.

5. Parentah Operasi
5.1 Hurung/Pareum sareng Lampu Latar
- Pikeun ngaktipkeun alat, pencét tombol Tombol Daya.
- Pikeun mareuman alat, pencét jeung tahan kenop Tombol Daya nepi ka tampilan pareum.
- The device features an automatic power-off function after 10 minutes of inactivity to save battery. This can typically be canceled manually by pressing a button before it shuts off, or by a specific setting (refer to advanced settings if available).
- To activate the backlight, long press the Tombol Daya for more than 2 seconds while the device is on.
5.2 Nyokot Pangukuran
Hold the anemometer so that the fan blade faces the direction of the wind or airflow you wish to measure. Ensure no obstructions block the fan.


5.3 Ngalihkeun Unit
- Pencét éta HOLD/UNIT Button briefly to cycle through different air velocity units (m/s, ft/m, km/h, mile/h, knots).
- Ngagunakeun éta °F/°C Buttons to switch between Fahrenheit and Celsius for temperature readings.
5.4 Data Tahan Fungsi
- Salila pangukuran, pencét HOLD/UNIT Button to freeze the current reading on the display. The "HOLD" indicator will appear.
- Pencét éta HOLD/UNIT Button again to release the hold and resume real-time measurement.
5.5 MAX/MIN/AVG Measurement
- Pencét éta Tombol MAX/MIN to cycle through maximum (MAX), minimum (MIN), and average (AVG) readings recorded since the device was powered on or the function was reset.
- To reset the MAX/MIN/AVG values, typically you would power off and on the device, or consult the full manual for a specific reset procedure if available.
6. Spésifikasi
The following table outlines the technical parameters for the TASI TA641B anemometer:

| Parameter | TA641B Specification |
|---|---|
| Modél | TA641B |
| Rentang laju hawa | 0.06 ~ 30.0 m / s |
| Resolusi laju hawa | 0.01/0.1 |
| Akurasi laju hawa | ±0.2+(±2% reading) |
| Rentang Suhu Ambient | 0 ~ 45 ° C (32 ~ 113 ° F) |
| Ambient Temperature Resolution | 0.1 °C/°F |
| Ambient Temperature Accuracy | ± 2 °C |
| Rentang asor ambient | 0 ~ 99% RH |
| Ambient Humidity Accuracy | ± 8% RH |
| tampilan | 4 angka, maksimal 9999 |
| Sénsor | Infrared laser tube cutting method |
| Sampling Laju | 2 kali / s |
| Otomatis Pareum | 10 minutes (can be canceled manually) |
| Lingkungan Gawé | -10 ~ 50 °C, Max 80% RH, indoor altitude < 2000m |
| Lingkungan Panyimpenan | -10 ~ 50 °C, Max 70% RH (battery removed) |
| Ukuran produk | 152 x 55 x 33 mm |
| Ukuran layar | 37 x 41 mm / 1.4 x 1.6 di |
| Beurat | Kira-kira. 135g (teu kalebet batré) |
| Kakuatan | 3x 1.5V AAA (R03/LR03) |
7. Pangropéa
7.1 beberesih
- Lap alat casing kalawan lemes, damp cloth. Do not use abrasive materials or chemical solvents.
- Ensure the fan blades are free from dust and debris for accurate readings. Use a soft brush or compressed air if necessary, being careful not to damage the blades.
7.2 Panyimpenan
- Upami teu dianggo salami lami, cabut batréna pikeun nyegah bocor sareng karusakan alat.
- Store the anemometer in a cool, dry place, away from direct sunlight and extreme temperatures. The recommended storage environment is -10 ~ 50 °C with Max 70% RH.
- Utilize the provided protective cover and cloth bag for storage to prevent scratches and impacts.

8. Cara ngungkulan
If you encounter issues with your TASI TA641B anemometer, please refer to the following common problems and solutions:
- Alat teu hurung:
- Pariksa lamun accu dipasang bener jeung polaritasna katuhu.
- Ganti batré anu lami atanapi béak ku anu énggal.
- Bacaan teu akurat:
- Ensure the fan blades are clean and unobstructed.
- Verify that the device is held correctly in the airflow.
- Check for stable environmental conditions during measurement.
- Tampilan taram atanapi kosong:
- Pariksa tingkat batré jeung ngaganti lamun low.
- Ensure the backlight is activated if operating in low light conditions.
- Auto power-off too soon:
- The device has a 10-minute auto power-off feature. If you need continuous measurement, ensure you interact with the device periodically or check if there's an option to disable APO (refer to the full manual if available).
Pikeun masalah pengkuh, mangga ngahubungan rojongan customer.
9. Tips pamaké
- For the most accurate wind speed readings, hold the anemometer at arm's length, ensuring your body does not create a wind shadow or turbulence around the sensor.
- When measuring in fluctuating wind conditions, utilize the MAX/MIN/AVG functions to get a better understanding of the wind profile over a period.
- Always keep the protective cover on the fan when not in use to prevent damage to the delicate blades.
- Remember to remove batteries for long-term storage to prevent corrosion.
10. Garansi jeung Rojongan
TASI products are manufactured to high-quality standards. For information regarding warranty coverage, technical support, or service, please refer to the warranty card included with your product or contact the seller/manufacturer directly. Keep your purchase receipt as proof of purchase.





