Turbidity Sensor
Our turbidity sensor is based on nephelometric method (ISO 7027 – EN 27027). A light beam from a laser diode is sent to the sample through an optical lens. The 90 degree scattered light by suspended particles is collected by a photo detector and converted to an electric signal proportional to the turbidity of the sample.
Key Benefits
- Nephelometric turbidity sensor (ISO 7027 – EN 27027)
- Measures 90° scattered light from suspended particles using a laser diode and optical lens
- Converts scattered light into an electrical signal proportional to turbidity
- Standard 650 nm red laser; optional 860 nm infrared laser to avoid color interference
- Suitable for drinking water, aquaculture, and municipal or industrial water treatment outlets
- Integrated bubble trap prevents interference from air bubbles
- Cylinder can be opened for calibration with formazine solution
- Bottom valve allows emptying for calibration or manual cleaning
- Requires connection to EL200 controller for display, calibration, and measurement transmission
- Supports RS232/RS485 with Modbus protocol or analog 4-20 mA output
| Parameter | Specification |
|---|---|
| Measurement Method | Nephelometric |
| Measurement Range | 0 – 100 NTU (other ranges on request) |
| Detection Limit | 0.015 NTU |
| Repeatability | +/- 0.01 NTU |
| Accuracy | +/- 2% or +/- 0.015 NTU whichever is greater up to 20 NTU, +/- 5% above 20 NTU |
| Detector | 90ᵒ scattered light detector |
| Light Source | Visible laser diode (or infrared laser diode on request), lifetime > 5 years |
| Bubble Trap | Integrated |
| Capacity | 250 ml |
| Inlet/Outlet Fittings | For 9.6 mm external diameter plastic tubing |
| Ambient Temperature Range | -5 to 60 ᵒC |
| Working Pressure | 6 Bar maximum at 25 ᵒC |
| Body Material | POM |
| Wet Material | POM, PP, FKM, quartz |
| Sensor Cable Length | 3 meters (to EL200 controller) |
| Associated Controller | EL200 (to order separately) |
| Mounting | On wall by 4 screws |
| Sensor Warranty | 1 Year |
Why Choose Process Networks?
ISO-Certified Quality
Our ISO 9001:2015 quality management system ensures full traceability across design, installation, calibration and support.
Technical Expertise You Can Reach
When you contact us, you speak directly to an expert — not a call centre.
Trusted Supplier Partnerships
Exclusive access to premium instrumentation from leading global manufacturers in Germany, Japan, the US and across Europe.
Long-Term Support & SLAs
Most customers stay with us for years because we stay with them providing ongoing maintenance, calibration and on-site service.
Proven Field Experience
Thousands of instruments installed and tens of thousands points monitored daily on systems we support.
Speak to a technical expert about this product
Our experts will guide you to the right solution whether you need a single sensor or a site-wide monitoring system.
Office
Process Networks Ltd,
Unit K20 Drinan Enterprise Centre,
Swords, Co. Dublin, K67 NN59
Call
(01) 211 8414
info@processnetworks.ie