1. Introduktion
The Extech LT10 Pocket Light Meter is designed for measuring light intensity. This compact device provides accurate readings in both Foot-Candle (Fc) and Lux units, making it suitable for various applications requiring quick light measurements.
This manual provides detailed instructions for the proper setup, operation, maintenance, and troubleshooting of your LT10 light meter.
2. Sikkerhedsoplysninger
Please read and understand all safety instructions before operating the device. Failure to do so may result in damage to the meter or personal injury.
- Udsæt ikke måleren for ekstreme temperaturer eller høj luftfugtighed.
- Undgå at tabe måleren eller udsætte den for kraftige stød.
- Keep the sensor clean and free from obstructions for accurate readings.
- Udskift batterierne med det samme, når indikatoren for lavt batteri vises.
3. Produktkomponenter
Familiarize yourself with the main components of your Extech LT10 Pocket Light Meter:

Figur 1: Extech LT10 Pocket Light Meter. This image displays the front of the device, highlighting the light sensor at the top, the power button below it, and the LCD screen displaying "Lux" and a numerical reading.
- Lyssensor: Located at the top of the meter, this component detects ambient light.
- LCD-skærm: Shows light intensity readings, units (Lux/Fc), and battery status.
- Power knap: Used to turn the meter on and off.
4. Opsætning
4.1. Batteriinstallation
The Extech LT10 requires one 9V battery (included). To install or replace the battery:
- Find batteridækslet på bagsiden af måleren.
- Skub eller afklips dækslet for at åbne det.
- Tilslut 9V-batteriet til batteriklemmen, og sørg for korrekt polaritet.
- Placer batteriet i batterirummet, og luk dækslet forsvarligt.
5. Betjeningsvejledning
5.1. Tænd/sluk
Tryk på Power knap (marked with a circle and vertical line) to turn the meter on. The LCD display will illuminate automatically. Press the button again to turn the meter off.
5.2. At foretage en måling
To take a light intensity measurement:
- Turn on the meter using the Power Button.
- Position the light sensor towards the light source or the area where you wish to measure light intensity. Ensure the sensor is not obstructed.
- Read the light intensity value displayed on the LCD screen. The unit (Lux or Fc) will be indicated.
- The meter automatically measures light intensity at a rate of 1.5 times per second.
5.3. Måleenheder
The LT10 measures light intensity in two units:
- Lux: Lumens per square meter.
- Foot-Candle (Fc): Lumens per square foot.
The meter supports measurements up to 4000 Fc or 40,000 Lux.
6. Vedligeholdelse
6.1. Rensning
To ensure accurate readings and prolong the life of your meter:
- Tør målerens c afasinmed en blød, tør klud.
- Gently clean the light sensor with a soft, lint-free cloth. Do not use abrasive cleaners or solvents.
6.2. Udskiftning af batteri
Refer to Section 4.1 for instructions on replacing the 9V battery. Replace the battery when the low battery indicator appears on the display to ensure continuous operation and accurate measurements.
6.3. Opbevaring
When storing the meter for extended periods, remove the battery to prevent leakage and potential damage to the device.
7. Fejlfinding
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Måleren tænder ikke. | Dødt eller forkert installeret batteri. | Check battery polarity and replace the 9V battery if necessary (refer to Section 4.1). |
| Upræcise aflæsninger. | Dirty sensor, obstructed sensor, or low battery. | Clean the light sensor (Section 6.1). Ensure nothing is blocking the sensor. Replace battery if low battery indicator is present. |
| Skærmen er tom eller flimrer. | Low battery or internal fault. | Udskift batteriet. Hvis problemet fortsætter, skal du kontakte kundesupport. |
8. Specifikationer
- Måleområde: Up to 4000 Fc / 40,000 Lux
- Målehastighed: 1.5 gange i sekundet
- Vise: Large automatic backlit LCD
- Magt: 9V batteri (inkluderet)
- Dimensioner: Cirka 5.32 x 9.13 x 1.81 tommer (13.5 x 23.2 x 4.6 cm)
- Vægt: Cirka 6.3 ounce (178 gram)
- Model: LT10
- Fabrikant: Extech Instruments
9. Garantioplysninger
Extech Instruments provides a limited warranty for this product. For detailed warranty terms and conditions, please refer to the warranty card included with your product or visit the official Extech webwebsted. Gem din købsbevis til garantikrav.
10. Kundesupport
If you encounter any issues not covered in this manual or require further assistance, please contact Extech Customer Support. Contact information can typically be found on the Extech webwebsted eller i produktemballagen.
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