1. Úvod
This user manual provides detailed instructions for the operation, maintenance, and troubleshooting of the Walfront LX1330B Digital Light Meter. This device is designed for accurate measurement of illuminance, offering both Lux and Foot-Candle (FC) units. Please read this manual thoroughly before using the device to ensure proper and safe operation.
2. Vlastnosti produktu
- Wide Measurement Range: Capable of measuring illuminance from 0.1 to 200,000 Lux or 0.01 to 20,000 FC.
- High Accuracy Sensor: Equipped with a high-precision sensor for reliable and accurate readings.
- Rapid Response: Provides quick measurement results.
- Large LCD Display: Features a clear 3-1/2 digits 18mm LCD for easy reading in various lighting conditions.
- Unit Conversion: Easily switch between Lux and Foot-Candle (FC) units with a dedicated button.
- Data Hold Function: Allows freezing the current measurement on the display for convenient recording.
- Peak Hold Function: Captures and displays the maximum illuminance value detected.
- Over-range Indication: Alerts the user when the measured value exceeds the selected range.
- Low Power Consumption: Designed for efficient battery usage.
- Durable Construction: Includes a rubber protective sleeve for enhanced durability, wear resistance, and dust protection.
- Retraction Support: Features a fixed bracket on the back for easy observation and placement.

Image: The Walfront LX1330B Digital Light Meter showcasing its key features including high accuracy sensor, wide application range, large HD screen, unit conversion, data hold, and quick reaction.
3. Obsah balení
Po otevření balení se prosím ujistěte, že jsou všechny následující položky obsaženy a v dobrém stavu:
- 1 x Walfront LX1330B Digital Light Meter
- 1 x Uživatelská příručka
- 1 x Screw (for battery compartment, if applicable)
- 1 x úložný box

Image: The Walfront LX1330B Digital Light Meter and its light detect probe stored within its protective case, demonstrating the complete package contents.
4. Identifikace dílů
Familiarize yourself with the different components of the Walfront LX1330B Digital Light Meter:

Obrázek: Podrobný view of the Walfront LX1330B Digital Light Meter, with labels pointing to the LCD display, power on/off button, LUX/FC unit switch, data hold button, peak hold button, range selection buttons, and the light detect probe.
- LCD displej: Shows measurement readings, units (Lux/FC), and other indicators.
- Tlačítko zapnutí / vypnutí: Zapíná nebo vypíná zařízení.
- Tlačítko LUX/FC: Toggles between Lux and Foot-Candle measurement units.
- Tlačítko HOLD: Zmrazí aktuální údaj na displeji.
- Tlačítko PEAK: Activates the peak hold function to capture the maximum reading.
- RANGE Buttons: Used to manually select the appropriate measurement range.
- Light Detect Probe: The sensor that measures illuminance, connected via a coiled cable. It has a protective cap.
5. Nastavení
5.1 Instalace baterie
The Walfront LX1330B Digital Light Meter requires a 9V battery (not included). To install the battery:
- Vyhledejte kryt přihrádky na baterie na zadní straně jednotky.
- Use a small screwdriver (if necessary) to open the battery compartment.
- Connect a 9V battery to the battery connector, observing the correct polarity (+/-).
- Vložte baterii do přihrádky a bezpečně zavřete kryt.

Obrázek: Detailní záběr view illustrating the battery compartment design of the Walfront LX1330B, showing where the battery is inserted.
6. Návod k obsluze
6.1 Zapnutí/vypnutí
- Stiskněte tlačítko MOC button to turn the light meter on. The LCD will display a reading.
- Stiskněte tlačítko MOC znovu tlačítko pro vypnutí zařízení.
6.2 Provedení měření
- Ensure the light meter is powered on.
- Remove the protective cap from the light detect probe.
- Position the light detect probe at the location where you wish to measure illuminance. Ensure the sensor dome is facing the light source.
- Read the illuminance value directly from the LCD display.

Image: The Walfront LX1330B Digital Light Meter showing a digital reading on its LCD screen, with the light detect probe positioned for measurement.
6.3 Výběr jednotky (Lux/FC)
- Stiskněte tlačítko LUX/FC button to switch between Lux and Foot-Candle (FC) measurement units. The selected unit will be indicated on the LCD.
6.4 Funkce Data Hold
- Chcete-li zmrazit aktuální hodnotu na displeji, stiskněte tlačítko DRŽET button. An "H" symbol will appear on the LCD.
- Stiskněte tlačítko DRŽET znovu stiskněte tlačítko pro uvolnění datového blokování a obnovení měření v reálném čase.

Image: The Walfront LX1330B Digital Light Meter with its display showing the "H" symbol, indicating that the data hold function is active, freezing the measurement.
6.5 Funkce udržení vrcholu
- To capture and display the maximum illuminance value detected during a measurement session, press the VRCHOL tlačítko.
- Stiskněte tlačítko VRCHOL button again to exit peak hold mode.
6.6 Výběr rozsahu
The LX1330B has multiple measurement ranges. The device typically auto-ranges, but you can manually select a range using the RANGE buttons if needed for specific applications or to prevent "over-range" indications.
| FC Range | Rozsah Lux |
|---|---|
| 20 FC | 200 Lux |
| 200 FC | 2,000 Lux |
| 2,000 FC | 20,000 Lux |
| 20,000 FC | 200,000 Lux |
If the display shows "1" or "OL", it indicates an over-range condition. Select a higher range or move the sensor to an area with lower illuminance.
7. Údržba
7.1 Čištění
- Tělo zařízení otřete měkkým, suchým hadříkem.
- For the light detect probe, gently clean the sensor dome with a soft, lint-free cloth. Do not use abrasive cleaners or solvents.
- Ensure the device is off and dry before cleaning.
7.2 Výměna baterie
When the battery low indicator appears on the LCD, replace the 9V battery as described in the "Battery Installation" section (5.1). Remove the battery if the device will not be used for an extended period to prevent leakage.
7.3 Skladování
Store the light meter in its protective case in a cool, dry place, away from direct sunlight and extreme temperatures. Ensure the protective cap is on the light detect probe during storage.
8. Řešení problémů
| Problém | Možná příčina | Řešení |
|---|---|---|
| Zařízení se nezapne. | Vybitá nebo nesprávně nainstalovaná baterie. | Check battery polarity, replace battery if necessary. |
| "1" or "OL" displayed on LCD. | Over-range condition; illuminance exceeds selected range. | Select a higher measurement range or move the sensor to a less intense light source. |
| Nepřesné údaje. | Dirty sensor dome; incorrect unit selected; sensor not properly positioned. | Clean the sensor dome; ensure correct unit (Lux/FC) is selected; position the sensor directly towards the light source. |
| Displej je tlumený nebo bliká. | Slabá baterie. | Vyměňte 9V baterii. |
9. Specifikace
| Parametr | Hodnota |
|---|---|
| Model | LX1330B |
| Zobrazit | 3-1/2 digits 18mm LCD |
| Rozsah | 0.1 to 200,000 Lux / 0.01 to 20,000 FC |
| Over-input Indication | "1" |
| Přesnost | ≤20,000 Lux: ±(4%rdg + 10digit) >20,000 Lux: ±(5%rdg + 10digit) |
| Rezoluce | 0.1 Lux |
| Opakovatelnost | ±2 % |
| Teplotní charakteristika | ±1 %/°C |
| Sampčas ling | 2krát za sekundu |
| Foto detektor | Jedna silikonová fotodioda s filtrem |
| Rozměry produktu | 16 x 7.5 x 4 cm / 6.3 x 3 x 1.6 inches (approx.) |
| Hmotnost položky | 529g / 18.7 oz (approx.) |
| Napájení | 9V baterie (není součástí balení) |

Image: The Walfront LX1330B Digital Light Meter with its dimensions clearly marked in both centimeters and inches, showing its compact size.
10. Bezpečnostní informace
Please observe the following safety precautions to ensure safe operation and to prevent damage to the device:
- Nevystavujte zařízení extrémním teplotám, vlhkosti nebo přímému slunečnímu záření.
- Zabraňte silným vibracím nebo nárazům.
- Nepokoušejte se zařízení rozebírat ani upravovat. Veškerý servis svěřte kvalifikovanému personálu.
- Udržujte zařízení mimo dosah vody a jiných kapalin.
- Remove the battery if the device is not used for a long period to prevent battery leakage.
- Baterie a zařízení zlikvidujte v souladu s místními předpisy.
11. Aplikace
The Walfront LX1330B Digital Light Meter is a versatile tool suitable for a wide range of applications, including but not limited to:
- Light testing in public stores, offices, and commercial spaces.
- Illuminance measurement in libraries and educational institutions.
- Light level assessment in museums and art galleries for preservation.
- Quality control in lamp manufacturing facilities.
- Optimizing lighting for photography and videography.
- Stage lighting disposition and setup.
- General environmental light monitoring.

Image: Collage showing various environments where the light meter can be used, such as restaurants, stage lighting, outdoor street lighting, and laboratories, highlighting its wide applicability.
12. Záruka a podpora
Walfront products are manufactured to high-quality standards. While specific warranty details are not provided in this manual, please retain your purchase receipt as proof of purchase. For any technical support, troubleshooting assistance, or warranty inquiries, please contact Walfront customer service through the retailer where the product was purchased or visit the official Walfront webstránky pro kontaktní informace.
For more information, you may visit the Walfront store: Walfront Official Store