1. Mawu Oyamba
The Mastfuyi FY867 is a multifunctional, battery-powered instrument designed for precise environmental monitoring. It features a user-friendly interface, convenient button operation, and an intuitive 2.4-inch full-color HD display. This device accurately measures four critical environmental parameters:
- Kutentha Kozungulira: Kutentha kwapano kwa mpweya.
- Relative Humidity (%RH): The amount of moisture in the air relative to the maximum it can hold.
- Dew Point Temperature (DP): The temperature at which air becomes saturated with water vapor, leading to condensation. Crucial for preventing mold, rust, and damage in HVAC and storage.
- Wet Bulb Temperature (WB): The lowest temperature achievable by evaporating water into the air. Key for assessing heat stress and cooling system efficiency.
This instruction manual provides essential safety information, operating procedures, and technical specifications. Please read it carefully before using the product to ensure safe and effective operation.
2. Safety Operation Guidelines
Warning: Before using the product, please carefully read these safety guidelines.
- Before use, inspect the instrument and accessories for any damage or abnormality. Do not use the instrument if the housing is visibly damaged or the display is not functioning.
- Always follow the operating instructions provided in this manual when performing tests.
- Do not attempt to open the instrument or alter its internal wiring, as this may cause damage and void the warranty.
- When the display shows the low battery symbol, replace the batteries with new ones of the same specification promptly. If the instrument will not be used for an extended period, remove the batteries to prevent leakage.
- Do not store or use the device in environments with high temperature, high humidity, flammable or explosive materials, or strong electromagnetic fields.
3. Components and Display
The Mastfuyi FY867 is designed for ease of use with clearly labeled components and a comprehensive display.
3.1. Physical Structure
- Fufuzani: Located at the top, this houses the high-precision digital sensor for temperature and humidity measurements.
- Chiwonetsero cha LCD: A 2.4-inch full-color HD screen for clear data visualization.
- Mabatani ogwira ntchito: Located below the display for controlling various features.
- Instrument Housing: Made with durable, anti-slip, and impact-resistant silicone for superior grip and long-lasting performance.
3.2. LCD Display Area Description
The display provides real-time readings and status indicators:
- Auto Shut-off Symbol: Indicates automatic power-off function is active.
- Maximum Value Test Indication (MAX): Shows the highest recorded value.
- Minimum Value Test Indication (MIN): Shows the lowest recorded value.
- Data Hold Indication (HOLD): Indicates that the current reading is frozen on the screen.
- Chizindikiro cha Battery Yotsika: Zimachenjeza mabatire akafunika kusinthidwa.
- Temperature Measurement Unit: Displays °C or °F.
- Relative Humidity Measurement Unit: Displays %RH.
- Malo Owonetsera Kutentha: Shows ambient temperature.
- Humidity Display Area: Shows relative humidity.
- Dew Point Temperature Area (DP): Shows dew point temperature.
- Wet Bulb Temperature Area (WB): Shows wet bulb temperature.
- Dew Point/Wet Bulb Measurement Units: Displays °C or °F for DP/WB.
4. Kukhazikitsa
4.1. Zamkatimu Phukusi
Mukatsegula, chonde onetsetsani kuti zinthu zonse zilipo:
- MASTFUYI FY867 Digital Temperature Humidity Meter
- Buku la ogwiritsa (chikalatachi)
- Screwdriver
- 3 x 1.5V AAA Batteries (not included, please purchase separately)
- Protective Carrying Case (optional, may vary by package)
4.2. Kuyika kwa Battery
The FY867 requires 3 x 1.5V AAA batteries.
- Pezani batire kumbuyo kwa chipangizocho.
- Use the provided screwdriver to open the battery compartment cover.
- Insert three 1.5V AAA batteries, ensuring correct polarity (+/-) as indicated inside the compartment.
- Bwezerani chivundikiro cha chipinda cha batri ndikuchiteteza ndi screw.
5. Malangizo Ogwiritsira Ntchito
The FY867 is designed for intuitive operation with its clearly marked buttons.
5.1. Kuyatsa/Kuzimitsa
- Dinani pa Mphamvu batani (
) once to turn the device on. - Dinani pa Mphamvu batani kachiwiri kuti muzimitse chipangizocho.
5.2. Automatic Power Off (APO)
- The instrument has a default automatic power-off time of 10 minutes to conserve battery.
- To disable the APO function: While the device is off, press and hold the GWANITSA batani kenako dinani batani Mphamvu batani. The screen will display the "COU" symbol, indicating that APO has been successfully canceled.
5.3. Unit Switching (DP/WB and °C/°F)
- DP/WB Unit Toggle: Dinani pa DP/WB °C/°F button for less than 1 second to switch between Dew Point (DP) and Wet Bulb (WB) temperature displays.
- Temperature Unit Toggle (°C/°F): Press ndi kugwira DP/WB °C/°F button for 2 seconds or more to switch the temperature unit between Celsius (°C) and Fahrenheit (°F).
5.4. MAX/MIN Value Display
- Mukayesa, dinani batani MAX / MIN batani to cycle through the maximum value (MAX), minimum value (MIN), and current normal value.
- When MAX or MIN is selected, the screen will continuously display the highest or lowest reading recorded since the device was powered on or the MAX/MIN function was reset.
5.5. Data Hold and Flashlight
- Data Hold: Dinani pa GWIRITSANI batani for less than 1 second to activate or deactivate the data hold function. When active, the current readings will be frozen on the display.
- Tochi: Press ndi kugwira GWIRITSANI batani for 2 seconds or more to turn the built-in flashlight on or off. This feature is useful for working in low-light conditions.
6. Zofotokozera
Below are the detailed technical specifications for the Mastfuyi FY867 Digital Temperature Humidity Meter.
| Parameter | Kufotokozera |
|---|---|
| Nambala ya Model | FY867 |
| Mtundu wa Mphamvu | AAA Battery (3 x 1.5V AAA) |
| Mtundu wa Sensor | High-precision digital sensor |
| Update Speed | 400ms |
| Mtundu Wowonetsera | DIGITAL (2.4-inch Full-Color HD Display) |
| Chinyezi Chachibale | 0 ~ 99% RH |
| Wachibale Chinyezi Zowona | ±3.0%RH (20%~80%), ±4.0%RH (0%~20%, 80%~99%) |
| Relative Humidity Resolution | 0.1% |
| Ambient Temperature Range | -20 ~ 60 ° C (-4 ~ 140 ° F) |
| Ambient Temperature Accuracy | ±1°C (0-45°C) / ±1.5°C (-20~0°C, 45~60°C) ±2°F (32~113°F) / ±3°F (-4~32°F, 113-140°F) |
| Ambient Temperature Resolution | 0.1°C / 0.2°F |
| Dew Point Temperature Range | -50 ~ 60 ° C (-58 ~ 140 ° F) |
| Dew Point Temperature Accuracy | ±1°C (0~45°C) / ±1.5°C (-50~0°C, 45~60°C) ±2°F (32~113°F) / ±3°F (-58~32°F, 113~140°F) |
| Dew Point Temperature Resolution | 0.1°C / 0.2°F |
| Kutentha kwa Babu Wonyowa | -20 ~ 60 ° C (-4 ~ 140 ° F) |
| Wet Bulb Temperature Accuracy | ±1°C (0~45°C) / ±1.5°C (-20~0°C, 45~60°C) ±2°F (32~113°F) / ±3°F (-4~32°F, 113~140°F) |
| Wet Bulb Temperature Resolution | 0.1°C / 0.2°F |
| Kutentha Kwambiri Koyezera | 50°C -69°C |
| Makulidwe | 180x61x33mm |
| Kulemera | 0.255kg pa |
| Data Record | Inde |
| Ndi Smart Chipangizo | Inde |
| Zitsimikizo | CE, FCC, RoHS |
| Chiyambi | Mainland China |
7. Kukonza ndi Kusunga
7.1. Chisamaliro chonse
- Sungani chipangizocho chili choyera komanso chopanda fumbi ndi zinyalala. Gwiritsani ntchito nsalu yofewa komanso youma poyeretsa.
- Avoid exposing the device to extreme temperatures, direct sunlight, or sudden changes in temperature/humidity.
- Osamiza chipangizocho m'madzi kapena zakumwa zina.
7.2. Environmental Limitations
- Kutalika: Mpaka 2000 metres
- Mulingo Woipitsa: Gawo 2
- Kutentha kwa Ntchito ndi Chinyezi: -20~60°C (-4~140°F), 45%-80%RH
- Kutentha Kosungirako ndi Chinyezi: -20~60°C (-4~140°F), 45%-80%RH
7.3. Kusamalira Battery
- Sinthani mabatire mwachangu chizindikiro cha batire yotsika chikaonekera.
- If the instrument is not going to be used for an extended period (e.g., several months), remove the batteries to prevent potential leakage and damage to the device.
8. Mavuto
This section addresses common issues you might encounter with your Mastfuyi FY867.
- Chipangizo sichimayatsa:
- Ensure batteries are correctly installed with the proper polarity.
- Check if the batteries are depleted and replace them if necessary. - Kuwerenga molakwika:
- Allow the meter to stabilize for a period (e.g., 10-15 minutes) after moving it to a new environment, especially if there are significant temperature or humidity differences.
- Ensure the sensor probe is clean and unobstructed.
- Verify that the device is not exposed to direct heat sources, strong drafts, or direct sunlight during measurement. - Display is blank or shows error:
- Check battery levels and replace if low.
- If the housing is damaged, discontinue use and contact support. - Automatic power off is too frequent/infrequent:
-Review section 5.2 on how to enable or disable the Automatic Power Off function.
If you encounter persistent issues not covered here, please contact Mastfuyi customer support.
9. Malangizo Ogwiritsa Ntchito
- Kukhazikika Nthawi: For the most accurate readings, especially when moving the meter between environments with different temperatures or humidity levels, allow the device to stabilize for at least 10-15 minutes in the new location.
- Kusamalira Sensor: Keep the sensor probe clean and free from dust, lint, or any obstructions that could affect air circulation and measurement accuracy.
- Kuyika Bwino Kwambiri: When monitoring an area, place the meter away from direct heat sources, air conditioning vents, or open windows to get a representative reading of the general environment.
10. Chitsimikizo ndi Thandizo
Mastfuyi products are manufactured to high-quality standards. For warranty information, technical support, or service inquiries, please contact the manufacturer directly.
Wopanga: Malingaliro a kampani Huizhou City Fu Yi Electronic Technology Co., Ltd.
Imelo: mkfuyi@mastfuyi.com
Webtsamba: www.mastfuyi.com
Adilesi: 4F and 5F, No.5 Building, Yinghui Technology Park, No.6 Dongsheng North Road, Chenjiang Sub-district, Zhongkai Hi-tech Zone, Huizhou City, Guangdong Province, China.
Buku lothandizira latsatanetsatane mu mtundu wa PDF likupezekanso kuti mutsitse: Buku la ogwiritsa (PDF)
