BTMETER BT-881E

BTMETER BT-881E Digital Illuminance/Light Meter User Manual

Model: BT-881E

Бренд: BTMETER

1. Киришүү

The BTMETER BT-881E is a digital illuminance meter designed for precise measurement of light intensity. It provides accurate readings in both Lux and Foot Candles (FC) across a wide range, making it suitable for various applications including home, garden, aquarium, plant cultivation, schools, offices, and LED lighting assessments. Its user-friendly design features a rotatable sensor and data recording capabilities for enhanced convenience.

2. Негизги өзгөчөлүктөрү

  • Жогорку тактык: Provides reliable measurements with an accuracy of +/- 4% readings +/- 0.5% f.s (at 10,000 Lux; 1,000 FC) and +/- 5% readings +/- 10 digits (at 300,000 Lux; 30,000 FC).
  • Тез жооп: Features a rapid sampling rate of 2-3 times per second, allowing for instant light measurements.
  • Кеңири өлчөө диапазону: Capable of measuring luminance from 0.01 to 300,000 Lux (0.01 to 30,000 Foot Candles) with a resolution of 0.01.
  • Колдонууга оңой: Equipped with a 270° rotatable light sensor, eliminating the need to reposition the entire meter for different measurement angles.
  • Маалыматтарды жазуу: Allows storage of up to 33 sets of readings for later review жана талдоо.
  • Temperature Testing: Includes functionality for temperature measurement.
  • Relative Measuring Mode: Displays the difference between current and recorded data, useful for comparative analysis.
BTMETER BT-881E Digital Lux Meter with icons illustrating features like data hold, backlight, max/min hold, relative value, data storage, temperature, bar graph, and Lux/FC selection.

Figure 1: ашыкview of BTMETER BT-881E features.

3. Кутуда эмне бар

  • 1 x BTMETER Lux Meter (BT-881E)
  • 1 x User Manual

4. Орнотуу

4.1 Батареяны орнотуу

The BT-881E requires batteries for operation. To install or replace batteries:

  1. Аппараттын артындагы батарея бөлүкчөсүн табыңыз.
  2. Батарея капкагын ачуу үчүн кичинекей Филлипс бурагычын колдонуңуз.
  3. Туура полярдуулукту камсыз кылуу менен керектүү батарейкаларды салыңыз.
  4. Батареянын капкагын бекем жаап, бураманы бекемдеңиз.

Video 1: Battery installation and basic operation demonstration for a similar BTMETER model (BT-881D). The process is identical for the BT-881E.

5. Иштөө нускамалары

Натыйжалуу иштөө үчүн баскычтар жана дисплей менен таанышып алыңыз.

BTMETER BT-881E Digital Lux Meter with its display showing 'Light ON' and 'Light OFF' states, highlighting the green backlight.

Figure 2: BTMETER BT-881E display with backlight on and off.

5.1 Күйгүзүү/өчүрүү

басыңыз Күч баскычы (Күч баскычынын сүрөтчөсү) аппаратты күйгүзүү же өчүрүү.

5.2 Unit Selection (Lux/FC)

басыңыз Lux/Fc button to switch between Lux and Foot Candle measurement units.

5.3 Арткы жарык

басыңыз ЖАРЫК button to toggle the display backlight on or off for visibility in different lighting conditions.

5.4 Маалыматтарды кармоо

басыңыз БЕРҮҮ Учурдагы көрсөткүчтү дисплейде тоңдуруу үчүн баскычты басыңыз. Бошотуу үчүн кайра басыңыз.

5.5 Max/Min Measurement

басыңыз МАКС/МИН button to cycle through maximum, minimum, and current readings. This allows you to track the highest and lowest light levels detected during a measurement session.

5.6 Relative Measurement

басыңыз REL button to enter relative measurement mode. This mode displays the difference between the current measurement and a previously recorded reference value.

Video 2: Demonstration of the BTMETER Digital Light Meter in use, showing light level comparisons. Note: This video is from a third-party creator.

6. Өлчөө режимдери

The BT-881E supports three primary measurement modes:

  • Минималдуу режим: Displays the lowest light intensity recorded since the mode was activated.
  • Макс режими: Displays the highest light intensity recorded since the mode was activated.
  • Салыштырмалуу режим: Shows the difference between the current light reading and a set reference point.
BTMETER BT-881E display showing Min mode, Max mode, and Relative mode readings.

Figure 3: Illustration of the three measurement modes.

7. Маалыматтарды жазуу

The meter can record up to 33 sets of data. To record a reading, press the REC button. To recall recorded data, press the REC button again and use the arrow keys (if available, or cycle through with repeated presses) to navigate through the stored values.

BTMETER BT-881E display showing data hold and multiple recorded data sets.

Figure 4: Data recording and hold functions.

8. Тактык

The BT-881E is equipped with a high-precision photometric sensor for accurate light measurement. It is calibrated to a standard incandescent lamp түс температурасында 2556K.

  • Accuracy (≤ 10,000 Lux; 1,000 FC): ±4% readings ±0.5% f.s
  • Accuracy (> 10,000 Lux; 1,000 FC): ±5% readings ±10 digits
  • Чечим: 0.01 Lux / FC
Diagram illustrating the relative sensitivity of the photometric sensor across different wavelengths and accuracy specifications.

Figure 5: High-precision photometric sensor and accuracy details.

9. Техникалык шарттар

ӨзгөчөлүкСпецификация
Продукциянын өлчөмдөрү6.4 x 2.6 x 1.2 дюйм
Элемент Салмагы5.5 унция
Элемент моделинин номериCA-BT-881 C/D/E (BT-881E variant)
ӨндүрүүчүBTMETER
Өлчөө диапазону0.01~300,000 Lux (0.01~30,000 FC)
Резолюция0.01 Lux / FC
Sensor Rotation270°
Маалыматтарды сактоо33 комплектке чейин
Diagram showing the dimensions of the BTMETER BT-881E Digital Lux Meter.

Сүрөт 6: Продукциянын өлчөмдөрү.

10. Кыйынчылыктарды

If you encounter issues with your BTMETER BT-881E, consider the following common solutions:

  • Дисплей/кубат маселелери жок: Батареянын орнотулушун текшерип, батарейкалары түгөнүп калбагандыгын текшериңиз. Керек болсо алмаштырыңыз.
  • Туура эмес окуулар: Ensure the sensor is clean and unobstructed. Verify that the correct measurement unit (Lux/FC) is selected. Avoid measuring in rapidly changing light conditions if stable readings are required.
  • Дисплей жооп бербейт: Түзмөктү өчүрүп-күйгүзүп көрүңүз. Эгер көйгөй чечилбесе, батарейкаларды алып салып, кайра салыңыз.

For persistent problems, contact BTMETER customer support.

11. Техникалык тейлөө

To ensure the longevity and accuracy of your BTMETER BT-881E:

  • Тазалоо: Gently wipe the device, especially the light sensor, with a soft, dry cloth. Do not use abrasive cleaners or solvents.
  • Сактагыч: Store the meter in its protective carrying case in a cool, dry place away from direct sunlight and extreme temperatures. Remove batteries if the device will not be used for an extended period to prevent leakage.
  • Сенсор коргоо: Always keep the sensor cap on when the device is not in use to protect the photometric sensor from dust and damage.

12. Кепилдик жана колдоо

For information regarding product warranty, technical support, or service, please refer to the official BTMETER webсайтка же кардарларды тейлөө бөлүмүнө кайрылыңыз. Сатып алуу квитанциясын кепилдик дооматтары үчүн сатып алуунун далили катары сактаңыз.

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