Extech LT40 LED mjerač svjetla Korisnički priručnik

1. Uvod

The Extech LT40 is a compact and accurate LED Light Meter designed for measuring light levels from white LED light sources, as well as standard light sources. This device is essential for professionals needing to monitor and optimize environmental light levels in various settings such as offices, warehouses, public lots, hallways, and stairways. It provides measurements in both Lux and Foot-Candle (FC) units.

Figure 1: Extech LT40 LED Light Meter

2. Sigurnosne informacije

Please read all safety information before operating the Extech LT40 LED Light Meter. Failure to follow these instructions may result in damage to the device or personal injury.

• Ne izlažite mjerač ekstremnim temperaturama ili visokoj vlažnosti.
• Izbjegavajte ispuštanje mjerača ili njegovo izlaganje jakim udarcima.
• Keep the sensor clean and free from obstructions to ensure accurate readings.
• Ne pokušavajte otvoriti mjerač casing; unutra nema dijelova koje korisnik može sam servisirati.
• Baterije odložite u skladu s lokalnim propisima.

3. Proizvod je gotovview

3.1 Ključne značajke

• USB interface for easy setup and data download.
• Podaci koji se mogu odabrati sampling rates from 1 second to 24 hours.
• LCD displays current readings, min/max, and alarm status.
• Includes Windows 2000, XP, and Vista compatible analysis software.
• Measures white LED and standard lighting in Lux or Foot-Candle (FC) units.
• Features cosine and color corrected sensor for accurate measurements.

3.2 Komponente

The Extech LT40 LED Light Meter consists of the following main components:

• Senzor svjetla: Located at the top of the meter, responsible for detecting light.
• LCD zaslon: Prikazuje očitanja mjerenja, jedinice i indikatore statusa.
• Kontrolni gumbi:
  • Gumb za napajanje: Turns the meter on/off.
  • Gumb LUX/FC: Toggles between Lux and Foot-Candle units.
  • CAL/ZERO Button: Used for calibration and zeroing the sensor.
  • Gumb MAX/MIN: Displays maximum and minimum recorded readings.
  • Tipka HOLD: Zamrzava trenutno očitanje na zaslonu.
• Odjeljak za baterije: Nalazi se na stražnjoj strani jedinice.
• USB priključak: Za spajanje na računalo radi prijenosa podataka.

4. Postavljanje

4.1 Ugradnja baterije

1. Locate the battery compartment on the back of the LT40 meter.
2. Otvorite poklopac baterije.
3. Insert two (2) AAA batteries, ensuring correct polarity (+/-). The batteries are included with the meter.
4. Čvrsto zatvorite poklopac baterije.

4.2 Instalacija softvera

The LT40 includes analysis software compatible with Windows 2000, XP, and Vista. Refer to the software's installation guide for detailed instructions on installing and configuring the software for data download and analysis.

5. Upute za rad

5.1 Mjerenje

1. Pritisnite tipku Vlast gumb za uključivanje mjerača.
2. Select the desired unit (Lux or FC) by pressing the LUX/FC dugme.
3. Place the light sensor in the area where you wish to measure the light level. Ensure the sensor is facing the light source directly for accurate readings.
4. Read the light level displayed on the LCD.

Figure 2: Measuring light levels with the Extech LT40

5.2 Zeroing the Meter

To ensure accuracy, it is recommended to zero the meter before taking measurements, especially in low light conditions.

1. Place the protective cap over the light sensor to block all light.
2. Pritisnite tipku CAL/ZERO button. The display should show '0' or a very low value.
3. Remove the cap to begin measurements.

5.3 Using MAX/MIN and HOLD Functions

• MAX / MIN: Pritisnite tipku MAKS./MIN button to cycle through the maximum, minimum, and current readings. This is useful for monitoring light level fluctuations over time.
• DRŽI: Pritisnite tipku DRŽI gumb za zamrzavanje trenutnog očitanja na zaslonu. Ponovno pritisnite gumb za otpuštanje zadržavanja i nastavak mjerenja uživo.

5.4 Data Logging and Transfer

The LT40 supports data logging with selectable sampling rates. Connect the meter to a computer using the USB interface and utilize the included software to configure logging parameters, download recorded data, and perform analysis.

6. Održavanje

Proper maintenance ensures the longevity and accuracy of your Extech LT40 LED Light Meter.

• Čišćenje: Wipe the meter clean with a dry, soft cloth. Do not use abrasive cleaners or solvents. Ensure the light sensor is free of dust and debris.
• Skladištenje: When not in use for extended periods, remove the batteries to prevent leakage. Store the meter in a cool, dry place, away from direct sunlight and extreme temperatures.
• Kalibriranje: While the meter is designed for high accuracy, periodic professional calibration may be required depending on your application and industry standards. Refer to Extech's official support for calibration services.

7. Rješavanje problema

8. Specifikacije

9. Jamstvo i podrška

Extech Instruments is a trusted brand by professionals, sold in over 100 countries for over 45 years.

• Proizvođač: Extech
• Jamstvo: Obratite se službenim informacijama proizvođača website or the documentation included with your product for specific warranty details and terms.
• Korisnički priručnik (PDF): For a downloadable PDF version of the user manual, please visit the official Extech website or access it via this link: Extech LT40 User Manual PDF.
• Mrežna podrška: For additional support, FAQs, and product information, visit the official Extech store: Extech trgovina na Amazonu.