Application:
The MQ-510 underwater quantum meter is specifically designed for underwater photosynthetically active radiation (PAR) measurement. It is suitable for measuring most light sources, including LED lights. The immersion effect correction factor has already been applied to the meter readings through firmware. The quantum sensor can operate normally underwater, and measurement data is displayed via a handheld meter. The quantum sensor is connected to the handheld meter through a waterproof cable. The MQ-510 underwater quantum meter includes a handheld meter and a dedicated quantum sensor, which is sealed in a vacuum dome and connected to a specially designed aluminum housing via a waterproof cable. The MQ series meters support both manual and automatic data logging modes, facilitating convenient on-site measurement and daily data analysis. An AL-100 stainless steel leveling plate can be optionally equipped for the MQ-210X to ensure the sensor remains level when mounted on a crossarm.
Note: The handheld meter is not waterproof; only the sensor and cable are waterproof.
The MQ-510 features data logging capability, capable of recording 99 manual measurement data points. In automatic mode, the meter measures every 30 seconds and stores an average value every 30 minutes. It also calculates daily averages, with a maximum storage capacity of 99 daily average values. When data storage is full, old measurement values will be overwritten by new ones. The built-in display allows you to obtain measurement data in real time. Data stored in the meter can be easily transferred to a computer via the AC-100 communication cable.
Features:
- Handheld design for easy portability;
- Detachable or integrated photosynthetically active radiation probe and meter design;
- Fast response time;
- Real-time data display;
- Built-in memory with data storage and download capability;
- Waterproof design with robust and durable construction;
- Broad spectral measurement range, suitable for all light sources including LED lamps.
Technical Specifications:
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Spectral Range
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389 nm ~ 692 nm ± 5 nm (wavelengths > 50%)
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Spectral Selectivity
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412 ~ 682 nm ± 5 nm (wavelengths < 10%)
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Measurement Range
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0 ~ 4000 μmol/m²/s
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Field of View
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180°
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Calibration Error
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± 5%
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Repeatability
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< 0.5%
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Non-stability (Long-term Drift)
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< 2% / year
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Non-linearity
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< 1% (≤ 4000 μmol/m²/s)
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Response Time
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< 1 ms
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Directional Response
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Less than ± 5% (at 75° zenith angle); less than 10% (412 to 682 nm ± 5 nm)
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Azimuth Error
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< 0.5%
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Tilt Error
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< 0.5%
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Temperature Response
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-0.11 ± 0.04% / °C
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Detector
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Blue-enhanced silicon photodiode
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Housing
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Anodized aluminum body, acrylic diffuser
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Protection Rating
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IP68
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Operating Environment
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0 ~ 50 °C, < 90% non-condensing relative humidity at 30 °C; < 70% non-condensing relative humidity at 30 ~ 50 °C; sensor alone waterproof to 30 m
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Cable
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2 m two-conductor shielded twisted pair with TPR jacket; additional cable available
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Sensor Dimensions
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Diameter 2.4 cm, Height 3.7 cm
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Logging Mode
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Manual / Automatic
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Logging Capacity
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99 data sets
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Dimensions
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12.6 cm (L) × 7 cm (W) × 2.4 cm (H)
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Power Supply
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CR2320 coin cell battery × 1
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Weight
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180 g
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Optional Accessories:
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No.
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Name
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Model
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Product Description
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1
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Leveling Plate
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AL-100
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Mounts and secures the PAR probe to maintain stability and level orientation for maximum measurement accuracy. The leveling plate includes a built-in bubble level for installation guidance.
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2
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Communication Cable
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AC-100
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Downloads meter data to a computer; includes software, which is also available for download from the official website.
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3
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Submersible Extension Wand
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AM-320
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Handheld telescopic wand with three sections; extended total length is 102 cm. The last two sections are made of fiberglass, suitable for use in seawater.
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Origin: United States
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