Products / Environmental and Industrial
Turbidity Measurement
TB211 IR — with USB interface
TB300 IR — portable turbidimeter
TB350 — touchscreen turbidimeter
Turbidity Measurement
- EN ISO 7027 compliant infrared measurement
- All three meters measure scattered light at 90° using an IR-LED at 860 nm in full compliance with EN ISO 7027. Infrared light eliminates colour interference, allowing both coloured and colourless water samples to be measured accurately — critical for environmental and industrial applications where sample colour can vary significantly.
- Wide range of applications
- Turbidity measurement is essential across drinking water treatment, wastewater discharge compliance, raw water monitoring, industrial process water, environmental surveillance and food and beverage production. Accurate turbidity data ensures regulatory compliance, process efficiency and product quality.
- Three models to suit every requirement
- The TB211 IR is compact and portable with USB data transfer — ideal for field sampling and site visits. The TB300 IR offers high-capacity storage (1,000 datasets) suited to high-throughput laboratory or benchtop use. The TB350 extends the measuring range to 4,000 NTU with a full colour touchscreen and patented BLAC® stray-light elimination — the choice for applications requiring the highest accuracy across the widest range, including heavily turbid wastewater and industrial effluent.
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Measurable Parameters
Parameter | TB211 IR
PN 266030 | TB300 IRPN 194000 | TB350 IR/WLPN 194300 / 194310 |
Light source | IR-LED 860 nm | IR-LED 860 nm | IR-LED 860 nm (IR) or White LED (WL) |
Measuring range | 0.01–1,100 NTU | 0.01–1,100 NTU | 0–4,000 NTU |
Resolution | 0.01 NTU | 0.01 NTU | 0.01 NTU |
Accuracy | Not specified | ±2% (≤500 NTU), ±5% (500–1,000 NTU) | ±1.8% + straylight |
Standard | EN ISO 7027 | EN ISO 7027 | EN ISO 7027 |
Data storage | 125 datasets | 1,000 datasets | 1,000 datasets |
Interface | Micro-USB | RS-232 / USB | USB / RS-232 |
Display | Backlit LCD | Backlit LCD | Colour touchscreen |
Straylight Suppression | Standard | Standard | BLAC® (patented) |
Calibration | Manual (4-point standards) | Auto (T-CAL kit) | Guided T-CAL® kit |
Vials | Round cuvette ø24 mm | Round cuvette ø24 mm | Round cuvette ø24 mm |
Weight (with batteries) | 400 g | 1,000 g | 898 g |
Best Suited For | Compact field use | High-capacity lab/benchtop | Lab-grade accuracy + widest range |
Reagents & Consumables
No chemical reagents required. Formazin turbidity standards, T-CAL® calibration kits and replacement cuvettes available — contact us for pricing and availability.
Need technical advice or a quote?
Our team has over 35 years of Lovibond experience. Contact us for pricing, availability, and support.