1. Mawu Oyamba
The Extech UV505 is a compact, portable UV-AB light meter designed for measuring ultraviolet radiation from both natural and artificial light sources. This device is suitable for various applications including outdoor UV exposure assessment, medical testing, laboratory research, industrial quality control, educational purposes, electronics, and forensic investigations. It features a backlit display, a cosine-corrected sensor for accurate readings, two selectable measurement ranges, a zero adjustment function, data hold, and an automatic power-off feature to conserve battery life.
2. Zinthu Zogulitsa
- Compact and Portable Design: Easily fits in a hand or pocket for convenient on-the-go monitoring in various environments.
- UVA and UVB Measurement: Dual-sensor technology enables simultaneous and accurate tracking of both UVA and UVB light intensity.
- Data Capture Functions: Includes Peak Hold, Min/Max, and real-time readings to analyze fluctuations and critical UV peaks.
- Sonyezani LCD Backlit: Large, easy-to-read screen with backlight for clear visibility in diverse lighting conditions.
- Zomangamanga Zolimba: Rugged design ensures reliable performance in field and laboratory settings.
- Kuzimitsa Pagalimoto: Automatically shuts off to preserve battery life during extended use.
- Cosine Corrected Sensor: Provides accurate measurements regardless of the angle of incidence of the UV light.
3. Zamkatimu Phukusi
Onetsetsani kuti zinthu zonse zilipo komanso zili bwino:
- Extech UV505 Pocket UV-AB Light Meter
- Two AAA batteries (pre-installed or included separately)
- Chikwama chachitetezo
4. Kuzindikiritsa Chigawo

Chithunzi 1: Patsogolo view of the Extech UV505 Pocket UV-AB Light Meter, showing the UV sensor, LCD display, and control buttons.

Figure 2: The Extech UV505 meter being held in a hand, demonstrating its portable size and outdoor usability.
The Extech UV505 features a UV sensor at the top, a large LCD display in the center, and several control buttons below the display. The main power button is typically orange and centrally located. Other buttons include ZERO, UNIT, and a backlight button (often indicated by a light bulb icon) and a HOLD button (indicated by 'H'). The battery compartment is located on the rear of the device.
5. Kukhazikitsa
5.1 Kuyika kwa Battery
- Pezani batire kumbuyo kwa mita.
- Press the release button (if present) and slide open the battery cover.
- Ikani mabatire awiri a AAA, kuonetsetsa kuti polarity (+ ndi -) ndi yolondola.
- Replace the battery cover and ensure it clicks securely into place.
6. Malangizo Ogwiritsira Ntchito
6.1 Kuyatsa/Kuzimitsa
- To power on the meter, press the orange power button.
- To power off the meter, press and hold the orange power button until the display turns off. The meter also features an auto power-off function after a period of inactivity.
6.2 Kutenga Muyeso
- Mphamvu pa mita.
- Point the UV sensor directly towards the UV light source you wish to measure.
- Read the UV intensity value displayed on the LCD screen.
6.3 Zero Function
- To ensure accurate readings, especially in low UV environments, use the ZERO function.
- Cover the UV sensor completely to block all light.
- Press the 'ZERO' button. The display should show '0' or a very small value.
6.4 Kusankhidwa kwa Magawo
- Press the 'UNIT' button to cycle through available measurement units, typically µW/cm² (microwatts per square centimeter) and mW/cm² (milliwatts per square centimeter).
6.5 Kusungidwa kwa Data
- Press the 'HOLD' button (often marked 'H') to freeze the current reading on the display.
- Press 'HOLD' again to release the reading and return to live measurement.
6.6 Min/Max Function
- While measuring, press the 'MIN/MAX' button (or similar, depending on model) to display the minimum or maximum UV intensity recorded since the function was activated.
- Cycle through Min, Max, and current readings by pressing the button repeatedly.
- To clear Min/Max memory, typically press and hold the 'MIN/MAX' button, or power cycle the device.
6.7 Kuwunika
- Press the backlight button (light bulb icon) to illuminate the LCD display for better visibility in low-light conditions.
- Press it again to turn off the backlight.
7. Kusamalira
7.1 Kuyeretsa
- Pukutani mita ya casing ndi zofewa, damp nsalu. Osagwiritsa ntchito zotsukira abrasive kapena solvents.
- Keep the UV sensor clean and free from dust or debris to ensure accurate readings. Use a soft brush or compressed air if necessary.
7.2 Kusungirako
- Ngati simukugwiritsa ntchito kwa nthawi yayitali, chotsani mabatire kuti musatuluke.
- Store the meter in its protective pouch in a cool, dry place, away from direct sunlight and extreme temperatures.
7.3 Kusintha kwa Battery
- When the low battery indicator appears on the display, replace the batteries as described in Section 5.1.
8. Mavuto
- Meter does not power on: Yang'anani momwe batire yakhazikitsidwira ndikuwonetsetsa kuti mabatire ndi atsopano.
- Kuwerenga molakwika: Ensure the sensor is clean and unobstructed. Perform a ZERO calibration. Verify correct unit selection.
- Chiwonetsero ndi chocheperako kapena kuthwanima: Sinthani mabatire.
9. Zofotokozera
| Kufotokozera | Tsatanetsatane |
|---|---|
| Wopanga | Extech |
| Gawo Nambala | UV505 |
| Kulemera kwa chinthu | 3.2 pawo |
| Miyeso Yazinthu | 1.9 x 1 x 5.2 mainchesi |
| Nambala Yachitsanzo Yachinthu | UV505 |
| Mabatire | Mabatire a 2 AAA amafunikira (ophatikizidwa) |
| Mtundu wa Battery Cell | Zamchere |
| Njira Yoyezera | Metric |
| Kuphatikiza Zida | Meter, two AAA batteries, and a pouch |
| Tsiku Loyamba Likupezeka | Juni 12, 2018 |
10. Chitsimikizo ndi Thandizo
For warranty information or technical support, please refer to the official Extech webtsamba kapena funsani dipatimenti yawo yothandizira makasitomala. Sungani risiti yanu yogulira ngati umboni wogula pazidziwitso zilizonse za chitsimikizo.





