1. ບົດແນະນຳ
The Protmex PT625A is a handheld digital anemometer designed for measuring air velocity and airflow. This device is suitable for various applications, including environmental monitoring, HVAC system analysis, outdoor sports, and industrial use. It provides accurate and fast readings with multiple measurement units and data handling capabilities.
2. ຜະລິດຕະພັນເກີນview
2.1 ອົງປະກອບ
- Air Velocity Flow Sensor: The fan blade assembly at the top of the device.
- ຈໍສະແດງຜົນ: LCD screen for showing measurement readings and indicators.
- ປຸ່ມຄວບຄຸມ: Power, Function, Unit, Max/Min/Avg, Data Hold, Record.
- ຊ່ອງໃສ່ຫມໍ້ໄຟ: ຕັ້ງຢູ່ດ້ານຫຼັງສຳລັບຕິດຕັ້ງແບັດເຕີຣີ.
- ພອດ Micro USB: For data connection (on some models, not explicitly stated for PT625A but mentioned in video).

ຮູບ 1: ດ້ານຫນ້າ view of the Protmex PT625A Anemometer with key components labeled, including the air velocity flow sensor, display, and control buttons.
2.2 ຄຸນສົມບັດ
- High accuracy for wind speed measurement (0.4~40 m/s).
- Multiple units for wind speed: m/s, km/h, ft/s, knots, mil/h, fp/m.
- Air volume measurement in CFM, CMM, CMS.
- 8-blade aviation wing fan for sensitive and accurate readings.
- MAX/MIN/AVG data display.
- ຟັງຊັ່ນການຖືຂໍ້ມູນ.
- ປິດເຄື່ອງອັດຕະໂນມັດ.
- ຕົວຊີ້ວັດແບັດເຕີຣີຕໍ່າ.
- Air duct area setting for airflow calculation.
3. ຕັ້ງຄ່າ
3.1 ການຕິດຕັ້ງຫມໍ້ໄຟ
- ຊອກຫາຊ່ອງໃສ່ຫມໍ້ໄຟຢູ່ດ້ານຫຼັງຂອງອຸປະກອນ.
- ໃຊ້ screwdriver ເພື່ອເປີດຝາປິດຊ່ອງຫມໍ້ໄຟ.
- Insert the provided 9V battery, ensuring correct polarity (+/-).
- ປ່ຽນຝາປິດຊ່ອງໃສ່ໝໍ້ໄຟ ແລະຍຶດມັນດ້ວຍສະກູ.

ຮູບ 2: ກັບຄືນໄປບ່ອນ view of the anemometer, indicating the battery compartment where a 9V battery is inserted. A screwdriver is required to open the compartment.
4. ຄໍາແນະນໍາການດໍາເນີນງານ
4.1 ເປີດ/ປິດ
ກົດ ພະລັງງານ ປຸ່ມ (
) to turn the device on or off. The device features an auto power-off function to conserve battery life.
4.2 Measuring Air Velocity
- Turn on the anemometer.
- Point the air velocity flow sensor (fan) directly into the airflow you wish to measure. Ensure the airflow passes through the fan blades.
- The current air velocity reading will be displayed on the LCD screen.
- ກົດ ໜ່ວຍ button to cycle through different measurement units (m/s, km/h, ft/s, knots, mil/h, fp/m).

Figure 3: The anemometer being used to measure wind speed in an outdoor environment, demonstrating how to position the sensor into the airflow.
4.3 Airflow Measurement (CFM/CMM/CMS)
- Turn on the anemometer.
- ກົດ FUNC button to enter airflow measurement mode.
- ໃຊ້ SET button to input the cross-sectional area of the air duct or channel. This is crucial for accurate airflow calculation.
- Once the area is set, point the sensor into the airflow. The device will display the airflow volume in CFM, CMM, or CMS.
- ກົດ ໜ່ວຍ button to select the desired airflow unit.

Figure 4: Illustration of the anemometer displaying airflow measurement after setting the air duct area. The screen shows both area input and calculated flow.
4.4 Data Hold, Max/Min/Avg, and Record Functions
- ການຖືຂໍ້ມູນ: ກົດ ຖື ປຸ່ມເພື່ອຢຸດການອ່ານປັດຈຸບັນຢູ່ໃນຈໍສະແດງຜົນ. ກົດອີກຄັ້ງເພື່ອປ່ອຍ.
- MAX/MIN/AVG: ກົດ MAX / MIN / AVG button to cycle through maximum, minimum, and average readings during a measurement session.
- ບັນທຶກ: ກົດ REC button to initiate data recording. (Note: Specific details on data storage and retrieval may be in the full manual or software).

Figure 5: The anemometer's display showing maximum, minimum, and average wind velocity readings, accessible via the dedicated buttons.
5. ບໍາລຸງຮັກສາ
- ຮັກສາອຸປະກອນໃຫ້ສະອາດ ແລະ ແຫ້ງ. ເຊັດດ້ວຍຜ້າອ່ອນໆ, ເຊັດໃຫ້ແຫ້ງ.amp ຜ້າ. ຢ່າໃຊ້ເຄື່ອງເຮັດຄວາມສະອາດຂັດຫຼືສານລະລາຍ.
- Ensure the fan blades are free from dust and debris to maintain measurement accuracy.
- ເມື່ອບໍ່ໄດ້ໃຊ້ງານເປັນເວລາດົນ, ໃຫ້ຖອດແບັດເຕີຣີອອກເພື່ອປ້ອງກັນການຮົ່ວໄຫຼ.
- Store the anemometer in its protective case in a cool, dry place.
6. ການແກ້ໄຂບັນຫາ
- ບໍ່ມີຈໍສະແດງຜົນ/ອຸປະກອນບໍ່ເປີດ:
- ກວດສອບວ່າແບັດເຕີຣີຖືກຕິດຕັ້ງຢ່າງຖືກຕ້ອງດ້ວຍຂົ້ວທີ່ຖືກຕ້ອງຫຼືບໍ່.
- ປ່ຽນແບັດເຕີຣີຖ້າມັນຕໍ່າ ຫຼື ໝົດ.
- ການອ່ານທີ່ບໍ່ຖືກຕ້ອງ:
- Ensure the fan blades are clean and spinning freely.
- Verify that the sensor is pointed directly into the airflow.
- Check if the correct measurement unit is selected.
- For airflow measurements, confirm the air duct area setting is accurate.
- ປຸ່ມບໍ່ຕອບສະໜອງ:
- Turn the device off and then on again.
- ປ່ຽນແບັດ.
7. ຂໍ້ມູນຈໍາເພາະ
| ພາລາມິເຕີ | ມູນຄ່າ |
|---|---|
| ຊ່ວງຄວາມໄວຂອງລົມ | 0.4 ~ 40 m/s |
| ຫົວໜ່ວຍຄວາມໄວລົມ | m/s, km/h, ft/s, knots, mil/h, fp/m |
| Air Volume Units | CFM, CMM, CMS |
| Sampເວລາ ling | Approx. 0.5s/time |
| ມູນຄ່າການສະແດງສູງສຸດ | 9999 |
| ການສະຫນອງພະລັງງານ | ແບັດເຕີຣີ 9V |
| ຂະໜາດ (L x W x H) | 8.85 x 4.52 x 1.77 ນິ້ວ |
| ນ້ໍາຫນັກລາຍການ | 10 ອອນ |
| ວັດສະດຸ | ຢາງ |

Figure 6: A detailed screen introduction showing various symbols and their descriptions, including MAX, MIN, AVG, VEL, FLOW, AREA, and different units of measurement.
8. ການຮັບປະກັນແລະການສະຫນັບສະຫນູນ
Protmex products are designed for quality and reliability. For any issues or support, please refer to the contact information provided with your purchase or visit the official Protmex website. The product is CE (LVE, EMC), RoHS approved.
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