1. Įvadas
The Walfront GT8907 is a handheld digital anemometer designed for precise measurement of wind speed, temperature, and air volume. This device is suitable for various applications including industrial settings, environmental monitoring, HVAC system analysis, and outdoor activities. It features a high-definition large screen display for clear readings and soft rubber buttons for comfortable operation. This manual provides detailed instructions for the proper setup, operation, and maintenance of your GT8907 anemometer.

Figure 1: Walfront GT8907 Anemometer with its wind fan probe connected, displaying wind speed and temperature.
2. Pakuotės turinys
Gavę siuntinį, patikrinkite jo turinį, kad įsitikintumėte, jog yra visi reikalingi daiktai:
- Walfront GT8907 Digital Anemometer Unit
- Wind Fan Probe (connected via cable)
- USB Cable (for data transfer, if applicable)
- Vartotojo vadovas (šis dokumentas)
- Dėklas nešiojimui

Figure 2: The protective carrying case for the GT8907 anemometer, designed for safe storage and transport.
3. Įrenginys baigtasview
Familiarize yourself with the components and controls of the GT8907 anemometer:

Figure 3: Detailed diagram of the GT8907 anemometer, highlighting the main unit's screen and buttons, and the wind fan probe with its telescopic rod and handle.
- Ekranas: High-definition LCD display for readings.
- Užrakinimo mygtukas: To hold current readings.
- Mode Switch / Enter Button: To cycle through measurement modes and confirm selections.
- Air Volume Switch: To switch to air volume measurement.
- ON/OFF / Unit Button: Power on/off the device; short press to change units.
- Setting Area: For configuring measurement area for air volume.
- Išsaugojimo mygtukas: To save data.
- Read Data Button: To recall saved data.
- Delete Data Button: To delete saved data.
- Wind Fan: Rotates to measure wind speed.
- Teleskopinis strypas: Extends the wind fan for reaching measurement points.
- Rankena: Ergonomic grip for the wind fan probe.
4. Sąranka
4.1 Akumuliatoriaus įdėjimas
The GT8907 anemometer requires four (4) 1.5V AAA batteries (not included). Follow these steps to install the batteries:
- Pagrindinio įrenginio gale suraskite baterijų skyriaus dangtelį.
- Norėdami atidaryti, stumkite dangtelį žemyn arba paspauskite fiksatorių.
- Insert four AAA batteries, ensuring correct polarity (+ and -) as indicated inside the compartment.
- Uždėkite baterijų skyriaus dangtelį, įsitikindami, kad jis tvirtai užsifiksavo.

Figure 4: The open battery compartment of the GT8907, showing the correct orientation for inserting four AAA batteries.
4.2 Zondo jungtis
Ensure the wind fan probe is securely connected to the main unit via its cable. The connector should fit snugly into the port on the top of the main unit.
5. Naudojimo instrukcijos
5.1 Maitinimo įjungimas/išjungimas
- Norėdami įjungti įrenginį, paspauskite ir palaikykite ĮJUNGTA/IŠJUNGTA mygtuką.
- Norėdami išjungti įrenginį, paspauskite ir palaikykite ĮJUNGTA/IŠJUNGTA button again. The device also features an auto-power-off function to conserve battery life.
5.2 Matavimo vienetų keitimas
With the device powered on, short press the VIENETAS button (which is also the ON/OFF button) to cycle through available wind speed units (m/s, Ft/min, Knots, Km/h, Mph) and temperature units (°C, °F).
5.3 Wind Speed and Temperature Measurement
The device automatically displays wind speed and temperature upon power-on. Extend the telescopic rod of the wind fan probe and position the fan in the airflow you wish to measure. Ensure the fan is facing directly into the wind for accurate readings.

Figure 5: The GT8907 anemometer in use, showing its digital display with wind speed and temperature readings against a backdrop of wind turbines.
5.4 Air Volume Measurement (CFM/CMM)
- Paspauskite VEL/FLOW button to switch to air volume measurement mode.
- Paspauskite AREA/SAMPLE button to enter the area setting mode.
- Use the arrow buttons (if available, or other designated buttons) to adjust the measurement area (e.g., duct dimensions). Refer to the on-screen prompts.
- Paspauskite ENTER to confirm the area setting.
- Position the wind fan probe in the airflow. The device will display the air volume in CFM (Cubic Feet per Minute) or CMM (Cubic Meters per Minute).
5.5 Duomenų sulaikymo funkcija
Paspauskite LAIKYTI button to freeze the current readings on the display. Press it again to release the hold function and resume live measurements.
5.6 Duomenų saugojimas ir atkūrimas
- To save a reading, press the IŠSAUGOTI mygtuką.
- To recall saved data, press the SKAITYTI button. Use navigation buttons (if available) to browse through saved records.
- To delete saved data, press the DEL mygtuką.
6. Priežiūra
6.1 Valymas
Wipe the device and probe with a soft, dry cloth. Do not use abrasive cleaners or solvents. Ensure the wind fan is free from dust and debris for accurate operation.
6.2 Akumuliatoriaus keitimas
When the low battery indicator appears on the display, replace all four AAA batteries as described in Section 4.1. Remove batteries if the device will not be used for an extended period to prevent leakage.
6.3 Saugykla
Store the anemometer in its protective carrying case in a cool, dry place, away from direct sunlight and extreme temperatures. Ensure the wind fan probe is retracted or protected to prevent damage.
7. Problemų sprendimas
- Įrenginys neįsijungia:
- Patikrinkite, ar baterijos įdėtos teisingai ir tinkamu poliškumu.
- Pakeiskite naujomis AAA tipo baterijomis.
- Netikslūs rodmenys:
- Ensure the wind fan is clean and rotates freely.
- Verify the probe is securely connected to the main unit.
- Confirm the device is set to the correct measurement unit.
- Ensure the wind fan is positioned directly in the airflow.
- Ekranas blankus arba tuščias:
- Pakeiskite baterijas.
- Įsitikinkite, kad prietaisas nėra veikiamas ekstremalių temperatūrų.
8. Specifikacijos
| Parametras | Specifikacija |
|---|---|
| Modelis | GT8907 |
| Vėjo greičio matavimo diapazonas | 0.0 - 45.0 m/s; 0.0 - 8800 Ft/min; 0.0 - 88.0 Knots; 0.0 - 140.0 Km/h; 0.0 - 100 Mph |
| Vėjo greičio rezoliucija | 0.01 (m/s, Knots, Mph); 0.01/0.1/1 (Ft/min); 0.01 (Km/h) |
| Wind Speed Precision | ±3% ±0.1 (m/s); ±3% ±20 (Ft/min); ±3% ±0.2 (Knots); ±3% ±0.4 (Km/h); ±3% ±0.2 (Mph) |
| Air Volume Measurement Range (CFM) | 0 - 999900 ft³/min |
| Air Volume Measurement Range (CMM) | 0 - 999900 m³/min |
| Temperatūros matavimo diapazonas | 0 - 45°C / 32 - 113°F |
| Temperatūros raiška | 0.1°C / 0.18°F |
| Temperatūros tikslumas | ±1.0°C / ±1.8°F |
| Drėgmės matavimo diapazonas | 10 - 90% RH (without condensation) |
| Drėgmės skiriamoji geba | 0.1% RH |
| Drėgmės tikslumas | ±5 % |
| Darbo aplinkos temperatūra | 0–50 °C (32–122 °F) |
| Darbo aplinkos drėgmė | 40–80 % santykinis oro drėgnumas |
| Storage Condition Temperature | -40 - 60°C (-40 - 140°F) |
| Storage Condition Humidity | ≤ 80% RH |
| Maitinimo šaltinis | 4 x 1.5 V AAA baterijos |
| Svoris | Apytiksliai 1214 g / 42.8 uncijos |
| Matmenys (I x P x A) | 3.94 x 3.94 x 3.94 colio (pagrindinis įrenginys) |
9. Garantija ir palaikymas
Walfront products are designed for reliability and performance. For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official Walfront websvetainėje. Išsaugokite pirkimo kvitą kaip pirkimo įrodymą garantiniams reikalavimams.
For further assistance, you may contact Walfront customer service through their official channels. Please have your model number (GT8907) and purchase details ready.