Cảm biến đo độ đục Campbell Scientific OBS-3+

Thương hiệu: Campbell Scientific | Tình trạng: Còn hàng
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Cảm biến đo độ đục Campbell Scientific OBS-3+

Gọi 0904251826 để được trợ giúp

Cảm biến đo độ đục Campbell Scientific OBS-3+

Giới thiệu chung

The OBS-3+ is a submersible turbidity probe that has sideways-facing optics. It uses OBS technology to measure suspended solids and turbidity for applications ranging from water quality in freshwater rivers and streams to sediment transport and dredge monitoring. Campbell Scientific dataloggers measure the OBS-3+ probe's output and calculate turbidity.

Các ưu điểm của sản phẩm

Sideways facing optics avoid obstructions above and below the probe

Measures suspended solids and turbidity for up to 4000 NTUs

Provides a compact, low-power probe that is field proven

Accurate and rugged

Compatible with all Campbell Scientific dataloggers

Stainless-steel body allows use down to 500 m in fresh water

Titanium body allows use down to 1500 m in fresh or salt water

Fitted with MCBH-5-FS, wet-pluggable connector—multiple mating cable length options available

Offers an optional five-point sedimentation calibration for better measurements (see Ordering Info on the web page)

Mô tả chi tiết sản phẩm

The OBS-3+ uses its sideways-facing optics to emit a near-infrared light into the water. It then measures the light that bounces back from the water’s suspended particles.

If an obstruction is in the emitted light’s range, the light will scatter back and the turbidity reading will be too high. This probe's sideways-facing optics avoids obstructions above and below the probe. The OBS300 is available for locations that have obstructions around the sides of the probe.

OBS® is a registered trademark of Campbell Scientific.

Thông số kỹ thuật

Operating Temperature Range 0° to 40°C
Drift over Time < 2% per year
Maximum Data Rate 10 Hz
Minimum Warm-up Time 2 s
Infrared Wavelength 850 nm ±5 nm
Daylight Rejection -28 dB (re: 48 mW/cm-2)
Optical Power 2000 µW
Turbidity Accuracy 2% of reading or 0.5 NTU (whichever is larger)
Housing Material 316 stainless steel or titanium
Connector MCBH-5-FS, wet-pluggable
Maximum Submersion Depth
  • 500 m (1640.5 ft) for stainless-steel body
  • 1500 m (4921.5 ft ) for titanium body
Maximum Concentration Range
  • 5,000 to 10,000 mg/l (for mud)
  • 50,000 to 100,000 mg/l (for sand)
Concentration Accuracy
  • 2% of reading or 1 mg/l (whichever is larger) for mud
  • 4% of reading or 10 mg/l (whichever is larger) for sand
Diameter 2.5 cm (0.98 in.)
Height 14.1 cm (5.56 in.)
Weight 181.4 g (0.4 lb)

 

-2.5 Output Option

Output Voltage 0 to 2.5 V (over selected NTU range)
Supply Voltage 5 to 15 Vdc
Current Drain 15 mA

 

-5 Output Option

Output Voltage 0 to 5 V (over selected NTU range)
Supply Voltage 5 to 15 Vdc
Current Drain 15 mA

 

Download

Brochures

OBS-3+ and OBS300 Turbidity Sensors

Manuals

OBS-3+ and OBS300 Suspended Solids and Turbidity Monitors

Technical Papers

OBS and Turbidity Sensors Basics (2Q-P)

OBS: Effects of Light Absorption and Scattering in Water Samples on Measurements

OBS Sensors: Light Sources and Photodetectors

OBS: Effects of Suspended Solids Concentration (SSC)

OBS Measurements: Effects of Sediment Size

OBS Measurements: Effects of Sediment Color

OBS Measurements: Effects of Water Color

OBS: Effects of Bubbles

OBS Sensor: Effects of Fouling on the Lens

OBS Sensors: Sediment Calibration

OBS Sensors: Turbidity Calibration

OBS: Comparison of Suspended Solids Concentration (SSC) and Turbidity

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