1. Sarrera
The AOPUTTRIVER AP-8801B is a digital light meter designed for accurate measurement of illuminance. It features a wide measurement range, high precision, and various functions including data hold, maximum/minimum value tracking, data storage, and environmental temperature display. This manual provides detailed instructions for the proper use and maintenance of your device.
2. Segurtasun informazioa
- Irakurri arretaz argibide guztiak gailua erabili aurretik.
- Ez jarri gailua muturreko tenperatura, hezetasun edo eguzki-argitara.
- Saihestu kolpe bortitzak edo gailua erortzea.
- Mantendu gailua uretatik eta beste likidoetatik urrun.
- Ez saiatu gailua desmuntatzen edo aldatzen. Konponketak langile kualifikatuek bakarrik egin behar dituzte.
- Bota bateriak tokiko araudiaren arabera.
3. Produktua amaitu daview
3.1 Osagaiak
The AP-8801B Digital Light Meter consists of a main unit with an LCD display, control buttons, and a rotatable light sensor.

Figure 1: AP-8801B Digital Light Meter with labeled components.
- Argi-detektagailua: Sensor for measuring light intensity.
- LCD pantaila bistaratzea: Neurketa-irakurketak, unitateak eta beste adierazle batzuk erakusten ditu.
- Hold Key/Range Key: Press briefly to hold data; long press to switch auto range mode.
- Max/Min Selection Key: Sakatu honetarako view maximum or minimum recorded data.
- REC botoia: Short press to record data; long press to view gordetako datuak.
- REL/UP Key: Press to enter relative value mode; long press to view grabatutako datuak.
- MODE Key (Lux/FC, °C/°F): Press to select Lux/FC units; long press to select Celsius/Fahrenheit units.
- Aldatu botoia: Pizteko/itzaltzeko botoia.
- Babes-eskola: Provides durability and protection for the device.
3.2 Ezaugarri nagusiak
- Measurement Range: Up to 400,000 Lux / 40,000 FC.
- High Brightness LCD: Black and white display for clear readability in various lighting conditions.
- 270° Rotatable Sensor: The light sensor can be rotated 270° to the left and 90° to the right for flexible measurement angles.
- Data Hold: Freezes the current measurement on the display.
- Max/Min Data Hold: Records and displays the maximum and minimum measured values.
- Data Storage: Stores measurement data for later review.
- Auto Zero: Resets the measurement to zero.
- Auto/Manual Ranging: Automatically selects the appropriate measurement range or allows manual selection.
- Relative Value Measurement: Measures the difference from a reference value.
- Environmental Temperature Display: Shows ambient temperature in Celsius or Fahrenheit.
- Low Battery Indication: Alerts when battery power is low.

Figure 2: The AP-8801B with its rotatable light sensor and clear LCD display.
4. Konfigurazioa
4.1 Bateriaren instalazioa
The AP-8801B requires one 9V battery for operation. To install or replace the battery:
- Bilatu bateriaren konpartimentuaren estalkia gailuaren atzealdean.
- Ireki estalkia irristatuz edo torlojuak askatuz.
- Sartu 9V-ko bateria berri bat, polaritate zuzena (+ eta -) ziurtatuz.
- Itxi bateriaren konpartimenduaren estalkia ondo.
When the low battery indicator appears on the LCD, replace the battery promptly to ensure accurate measurements.

3. irudia: Adibample of a low battery indicator on the display.
5. Funtzionamendu-argibideak
5.1 Piztu/Itzali
Sakatu gorria Aldatu botoia gailua pizteko edo itzaltzeko.
5.2 Basic Light Measurement
- Turn on the light meter.
- Ensure the light detector is clean and free from obstructions.
- Point the light detector towards the light source or area where you want to measure illuminance. The sensor can be rotated up to 270° left and 90° right for optimal positioning.
- The current illuminance value will be displayed on the LCD screen in Lux or FC units.

Figure 4: Measuring light with the rotatable sensor.
5.3 Unit Selection (Lux/FC, °C/°F)
Sakatu MODUA button to toggle between Lux and FC units for light measurement. Long press the MODUA button to switch between Celsius (°C) and Fahrenheit (°F) for temperature display.
5.4 Datuak gordetzea
Sakatu EUTSI key briefly to freeze the current reading on the display. Press it again to release the hold function and resume live measurement.
5.5 Max/Min Data Hold
Sakatu MAX/MIN key to cycle through the maximum, minimum, and current readings. The display will indicate 'MAX' or 'MIN' when these values are shown.
5.6 Data Storage (REC)
Sakatu laburra REC button to record the current data. Long press the REC botoia eta, ondoren, erabili REL/UP gakoa view gordetako datuak.

Figure 5: Data storage function indicated on the display.
5.7 Auto/Eskuzko Distantziaren Neurketa
The device typically operates in auto-ranging mode. To switch to manual ranging, long press the HOLD/RANGE key. Press again to select different ranges. Long press again to return to auto-ranging.
5.8 Balio erlatiboaren neurketa
Sakatu REL/UP key to enter relative value mode. The meter will display the difference between the current measurement and a set reference value.
6. Mantentzea
- Garbiketa: Use a soft, dry cloth to clean the device. Do not use abrasive cleaners or solvents. Ensure the light detector is kept clean for accurate readings.
- Biltegiratzea: When not in use for extended periods, remove the battery to prevent leakage. Store the device in a cool, dry place, away from direct sunlight and extreme temperatures.
- Sentsoreen babesa: Keep the protective cap on the light sensor when not in use to prevent damage and dust accumulation.
7. Arazoak
- Gailua ez da pizten: Egiaztatu bateria behar bezala instalatuta dagoen eta nahikoa karga duen. Ordeztu bateria beharrezkoa bada.
- Irakurketa zehaztugabeak: Ensure the light detector is clean and unobstructed. Verify that the correct measurement unit (Lux/FC) is selected. Check for strong electromagnetic interference nearby.
- Display shows 'OL' (Over-range): The measured light intensity exceeds the current range. If in manual ranging mode, switch to a higher range. If in auto-ranging, the light intensity is beyond the device's maximum capacity.
- Pantaila ilun edo dir-dir egiten du: Bateria gutxi egon daiteke. Ordeztu bateria.
8. Zehaztapenak
| Ezaugarri | Zehaztapena |
|---|---|
| Neurketa-eremua | 0.1 to 400,000 Lux / 0.01 to 40,000 FC |
| Accuracy (<10,000 Lux/1,000 FC) | ±4%rdg + 1.0%f.s |
| Accuracy (>10,000 Lux/1,000 FC) | ±5%rdg + 1.5%f.s |
| Ebazpena | 0.1 Lux / 0.01 FC |
| Neurketa Abiadura | 2 aldiz/segundo |
| LCD pantailaren tamaina | 28.6mm × 51.3mm |
| Sensor Rotation | 270° ezkerrera, 90° eskuinera |
| Elikatze Hornidura | 1 x 9V bateria |
| Produktuaren neurriak | 21 x 7 x 4 cm |
| Pisua | Approx. 0.3 kg (including battery) |

Figure 6: Product dimensions and recommended illumination levels.
9. Bermea eta Laguntza
The AOPUTTRIVER AP-8801B Digital Light Meter is covered by a two-year product warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use.
For any concerns, problems, or technical support, please contact AOPUTTRIVER customer service. Please refer to the contact information provided with your purchase or visit the official AOPUTTRIVER weblaguntza eskatzeko gunea.