OBS300 turbidity sensor
By using OBS technology, the OBS300 sensor can measure suspended matter with turbidity up to 4000NTUs. The sensor works by emitting near-infrared light into the water and then receiving light reflected by suspended particles. OBS300 is a type of sensor that can be completely immersed in water. With its high-quality stainless steel cylinder, it can work normally in a freshwater environment of 500m depth. When equipped with a titanium alloy barrel, it can even be used in 1500m deep freshwater or seawater. OBS3+ places the optical detection window on the side of the barrel differently. OBS300 places the optical detection window on the bottom of the barrel, which can eliminate the adverse effects of the obstruction around the barrel on the detection.
Application areas:
◆ River and stream monitoring
◆ Excavation and mining monitoring
◆ Control the water quality of sedimentation tank and large volume container
◆ Research on sediment logistics
◆ Laboratory measurement
Features:
◆ Compact, low power consumption probes that have been actually tested
◆ Can be widely used in fresh water and sea water (in case of sea water, it needs to be equipped with titanium alloy barrel)
◆ Compatible with various data collectors produced by Campbell
◆ Contains an integral voltage clamp, optional 4～20mA current loop
◆ Equipped with MCBH-5 waterproof plug connector, with a variety of cable lengths for you to choose
◆ Can provide a 5-point deposition calibration (the dried water deposit needs to be sent to Campbell for calibration)
technical parameter:
Maximum working depth:
Stainless steel cylinder 500m (1640.6 feet), titanium alloy cylinder 1500m (4921.5 feet)
offset: <2%/year
Maximum sampling frequency: 10Hz
Input voltage: 5～15Vdc when voltage signal is output, 9～15Vdc when current signal is output
Standard current consumption: 15mA when voltage signal is output, 45mA when current signal is output
Working wavelength: 850nm±5nm
Daylight suppression: -28dB (re: 48mW/cm2)
Optical power: 2000μW
Measuring range:
Turbidity: See ordering information for details
Maximum concentration: soil 5000mg/L～10000mg/L, sand and gravel 50000mg/L～100000mg/L*
*Depends on the size, shape and albedo of the sediment
measurement accuracy:
Turbidity: 2% of reading or 0.5NTU*
Concentration: 2% of soil reading or 1mg/L*
Sandstone 4% of reading or 10mg/L*
* Take the maximum of the two
Standard sizes:
Case material: Type 316 stainless steel or titanium alloy
Connecting plug: MCBH-5-FS, waterproof plug
Weight: 181.4g (0.4 pounds)
Size: height 13.1cm, maximum diameter 2.5cm
Origin: United States
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