FTS - Model DTS-12 - Digital Turbidity Sensor
From Sensors
The marine-capable DTS-12 is the World’s Best Instream Turbidity Sensor. Using true Nephelometric geometry, along with a durable optical face and angled head that sheds bubbles, it provides extremely clean, highly precise data with repeatable, long-term accuracy. The DTS-12 exhibits less than 2% annual optical drift, providing an incredible 12-month recalibration interval. The unique self-cleaning wiper minimizes bio- fouling. These features can typically save 11 site visits per year.
Product Details
Set it and forget it. For up to 12 months.
- The DTS-12 is the first turbidity sensor to use a laser diode light source, a coherent, narrow, near-infrared spectral beam that provides a constant intensity with virtually no degradation over time.
- Unique, self-cleaning, bi-directional design utilizes a back- and-forth motion and two cavities in the face of the sensor that scrape away any fouling twice each time the wiper is activated.
- Non-abrasive silicone wiper blade prevents optical face abrasion and cannot be impregnated with sediment or bio-fouling.
- Integrated thermal compensation provides very high thermal stability of light source and electronics.
- Accurate readings for up to 12 months.
Key Features
- Measures temperature as well as turbidity
- Metal components are stainless steel and marine-grade stainless steelO-ring sealed for effective
- watertight security
- Extended duty cycle wiper motor for years of service
- Heavy-duty stainless steel universal joint for wiper mechanism
- Thick-walled marine-grade stainless steel
Technical Specifications
Sensor Type:
- Temperature: Encapsulated thermistor
- Humidity: Optical nephelometer (sidescatter)
- Range: 0 to 1,600 NTU (nominal)
Accuracy (Turbidity)*:
- Accuracy (@ 25˚C):
- ±2% of reading + 0.2 NTU (0-399 NTU)
- ±4% of reading (400-1,600 NTU)
- Resolution: 0.01 NTU
- Temp. coefficient (0-40 ˚C): < -0.3% / ˚C
- Accuracy (Temperature): ±0.2 ˚C
- Supply Voltage Range: 9.6V to 16V
- Current Consumption (Typical):
- Standby: 0.35 mA
- Operating: 50 mA
- Motor wiping: 200 mA
- Depth Rating: 98 ft. (30m)
- Wipe Time: 5 seconds (nominal)
- Operating Temperature: +32˚F to 104˚F (0˚C to +40˚C)
- Communications Protocol: SDI-12, version 1.3
- Measurements Returned: The following are computed from 100 instantaneous samples taken: Mean, Variance, Median, BES, Min, Max, Temperature
- Sample Rate: 20 Hz
- Dimensions: 12 in. (30.48cm) x 2 in. (5.08cm)
- Weight: 23.3 oz (604g)
Cable Options:
- Fixed cables: Custom lengths
- Connectorized cables: 60 ft (18.3m) / 100 ft (30.5m)
*excluding formazin batch accuracy of ±5%
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