1. Giriş
The DANOPLUS DP-355 Quantum PAR Meter is designed for measuring Photosynthetically Active Radiation (PAR) within the photosynthetic waveband. This meter provides accurate and reliable readings of light energy available for photosynthesis, crucial for monitoring plant growth in various environments.
The measurement range of the DP-355 is between 0 and 5000 µmol/m²/sec. It specifically measures light in the 400 nm to 700 nm wavelength range, with a tolerance of ±10 nm at both the cut-on and cut-off wavelengths. This ensures that the meter captures the light spectrum most relevant to plant photosynthesis.
2. Temel Özellikler
- Reliable Measurement: Measures PAR from 0 to 5000 µmol/m²/sec within the 400-700 nm photosynthetic waveband, ensuring high precision for plant light requirements.
- Kayıt İşlevi: Stores up to 100 measured values, allowing for tracking and review of PAR changes over time. Features a real-time display of the last four recorded data points for quick reference.
- Çok Yönlü Kullanım: An essential tool for growers, scientists, and researchers to optimize plant growth, improve energy efficiency, and enhance crop management.
- Üçayak soketi: Includes a tripod socket for secure and stable attachment to a tripod (not included), providing flexibility and accuracy during measurements.
- Taşınabilir Tasarım: Compact, lightweight, and ergonomic, making it easy to carry and use in various locations such as greenhouses, growth chambers, or fields.

Şekil 2.1: Üzeriview of DANOPLUS DP-355 Quantum PAR Meter features including Max/Min/Avg, High Accuracy, Auto-power off, Fast Response, Large measurement range, Compact size, 100 Data log, and Data Hold.

Figure 2.2: The DP-355 PAR Meter is suitable for wide applications such as crop growth monitoring, greenhouse control, plant factories, and seed cultivation.
3. Ürün Bileşenleri ve Diğerleriview
Familiarize yourself with the various parts of your DANOPLUS DP-355 Quantum PAR Meter.

Şekil 3.1: Ön ve arka view of the DP-355 PAR Meter, highlighting the Sensor diffuser, Power Key, LCD display, Hold key, Down key, Mode key, Up key, Battery compartment, Battery cover, and Tripod socket.

Şekil 3.2: Ayrıntılı view of the large screen display, indicating the Menu or MAX/MIN/AVE data, Battery indicator, Hold display, Measuring unit, Measured value, and the last 4 records.
4. Kurulum
4.1 Pil Kurulumu
- Ölçüm cihazının arka tarafındaki pil bölmesini bulun (Şekil 3.1'e bakın).
- Pil kapağını kaydırarak açın.
- Insert the required Alkaline batteries, ensuring correct polarity (+/-). The meter requires batteries to operate.
- Pil kapağını sıkıca kapatın.
4.2 Açma/Kapatma
- Cihazı açmak için tuşuna basın. GÜÇ anahtar.
- Cihazı kapatmak için tuşunu basılı tutun. GÜÇ key until the display turns off. The meter also features an auto-power off function to conserve battery life.
4.3 Tripod Bağlantısı (İsteğe Bağlı)
For stable and consistent measurements, especially over time or in specific locations, the meter can be mounted on a tripod.
- Locate the tripod socket on the back of the meter (refer to Figure 3.1).
- Screw the meter onto a standard tripod (tripod not included).
- Adjust the tripod to the desired height and angle for measurement.

Figure 4.1: The DP-355 PAR Meter shown with a tripod mount for stable measurements. Note: Tripod is not included.
5. Kullanım Talimatları
5.1 Bir Ölçüm Yapma
- Sayacın açık olduğundan emin olun.
- Position the sensor diffuser directly under the light source at the desired measurement point.
- The current PAR value will be displayed on the LCD screen in µmol/m²/sec.

Figure 5.1: Using the DP-355 PAR Meter to measure light intensity in a plant cultivation setup.
5.2 Using the Record Function
The meter can store up to 100 measurements and display the last four readings.
- To save a measurement, press the A/LOG button. The current reading will be stored.
- İle view stored data, navigate through the menu using the MOD Buton ve ok tuşları.
- The display will show the last four recorded data points in real-time, allowing for quick monitoring of recent changes.
5.3 Veri Tutma Fonksiyonu
Ekrandaki mevcut değeri dondurmak için:
- Basın TUTMAK button. The displayed value will be held.
- Basın TUTMAK button again to release and resume live measurements.
5.4 Advanced Measurement with External Devices
The DP-355 can be used in conjunction with external applications for more detailed analysis, such as calculating Daily Light Integral (DLI) or mapping PAR distribution.
Video 5.1: Demonstration of a PAR meter measuring light in an aquarium, showing PAR, DLI, and spectral breakdown (B, G, R) values. This video illustrates how PAR meters can be used to assess light conditions for aquatic plants and corals.
Video 5.2: This video demonstrates how a PAR meter can be used with a mobile application to calculate Daily Light Integral (DLI) and methodically record PPFD values across a grid, providing a comprehensive light map for plant growth optimization.
6. Bakım
6.1 Temizlik
- Keep the sensor diffuser clean and free from dust or debris. Use a soft, dry cloth to gently wipe the sensor.
- Clean the meter's body with a slightly damp bezle silin. Aşındırıcı temizleyiciler veya çözücüler kullanmayın.
6.2 Depolama
- Uzun süre kullanılmadığı zamanlarda, sızıntıyı önlemek için pilleri çıkarın.
- Store the meter in its carrying pouch in a cool, dry place, away from direct sunlight and extreme temperatures.
7. Sorun Giderme
- Sayaç açılmıyor: Pillerin montajını kontrol edin ve pillerin bitmediğinden emin olun. Gerekirse değiştirin.
- Yanlış okumalar: Ensure the sensor diffuser is clean and unobstructed. Verify the meter is positioned correctly relative to the light source.
- Görüntüleme sorunları: Ekran loşsa veya titriyorsa, pilleri değiştirin.
- Data not saving: Ensure the A/LOG button is pressed firmly. Check if the memory is full (though it stores up to 100 values).
8. Özellikler
| Şartname | Detay |
|---|---|
| Üretici | DANOPLUS |
| Parça Numarası | DP355 |
| Ürün Model Numarası | DP-355 |
| Ölçüm Aralığı | 0 - 5000 µmol/m²/sec |
| Cut-on Wavelength | 400 nm (±10 nm) |
| Cut-off Wavelength | 700 nm (±10 nm) |
| Dahil Bileşenler | PAR Meter, English Manual, Carrying Pouch |
| Piller Gerekli | Evet |
| Pil Hücresi Tipi | Alkali |
| Paket Boyutları | 19x9.4x4.7 cm |
| Ürün Ağırlığı | 240 gr |
9. Garanti ve Destek
For warranty information and technical support, please refer to the documentation included with your product or contact DANOPLUS customer service through their official website or the retailer from whom the product was purchased. Keep your purchase receipt as proof of purchase for warranty claims.