TU810 In-line Turbidity Sensor
- Manufacturer: B&C Electronics
- Category: Water quality, SENSORS, Turbidity Sensors
The SB&C Electronics TU810 in-line turbidity sensor It is a high-precision optical sensor designed for the continuous turbidity measurement in water and process liquids. Its nephelometric measurement technology complies with the standards ISO 7027 and EN 27027, It uses an 890 nm infrared LED to obtain stable measurements, minimizing the influence of sample color and ambient light.
This turbidity sensor It incorporates a built-in preamplifier and is designed to work in conjunction with the controllers. TU7685 and TU7685.010, allowing measurement from very low turbidity waters to processes with high concentrations, thanks to its different measurement scales up to 4000 NTU.
Its chemical-resistant PVC body, IP67 connector protection, and the ability to install cables up to 150 meters long allow its use in drinking water treatment plants, filtration systems, swimming pools, process water, mineral water, ultrafiltration, sedimentation, and water quality control in industrial applications.
To obtain maximum accuracy, especially on the scale of 0–4 NTU, The manufacturer recommends installing the sensor in the TU910 flow cell or in a PVC T that can be supplied. These accessories maintain a constant flow rate of the sample, reduce the appearance of air bubbles in the optical zone, and facilitate both cleaning and calibration using formazin standards.

The set formed by the TU810 sensor, the TU910 flow cell and the TU7685 controller It constitutes a complete solution for continuous turbidity monitoring in industrial processes and water treatment plants, providing a reliable, stable measurement with very little maintenance.
Properties
| Reference | TU810 |
| Product type | Amplified turbidity sensor for online measurement |
| Measurement method | Nephelometric, in accordance with ISO 7027 and EN 27027 |
| Light source | 890nm infrared LED |
| Measuring range | 0–4000 NTU |
| Scales available with TU7685 controller | 0–4,000; 0–40,00; 0–400,0 and 0–4000 NTU |
| Resolution | 0.001 NTU on the 0–4,000 NTU scale 0.01 NTU on the 0–40.00 NTU scale 0.1 NTU on the 0–400.0 NTU scale 1 NTU on the 0–4000 NTU scale |
| Precision | ±5 % of the reading between 0 and 400 NTU ±10 % of the reading between 400 and 4000 NTU |
| Response time | 10 seconds |
| Preamplifier | Incorporated |
| Internal detection | Empty cell and dirty optical window control |
| Sensor power supply | ±12 VDC supplied by the TU7685 controller |
| Compatible drivers | B&C Electronics TU7685 and TU7685.010 |
| Ambient temperature | 0 to 50 °C |
| Sample temperature | 0 to 50 °C |
| Maximum sample pressure | 6 bar at 20 °C |
| Body material | PVC |
| O-ring material | NBR, nitrile rubber |
| Optical window material | Acrylic |
| Sensor diameter | 40 mm |
| Connector protection | IP67 |
| Maximum cable length | 150 m |
| Available cables | 10 or 30 m with connector |
| Direct pipe mounting | 2-inch T-connection, DN50 |
| Low turbidity accessory | TU910 flow cell recommended for the 0–4 NTU scale |


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