High-precision, non-contact nephelometer for continuous turbidity measurement in accordance with US EPA Method 180.1.
The AMI Turbiwell White LED uses a unique non-contact measurement design that prevents the optical surfaces from coming into contact with the sample, significantly reducing fouling. Combined with heated optics, this design delivers accurate, stable and reliable turbidity measurements over extended periods with minimal maintenance.
The analyser complies with US EPA Method 180.1 and operates without consumables or wear parts, making it a highly cost-effective solution for continuous turbidity monitoring. Typical applications include raw water, potable water, cooling water and effluent treatment.
Key Features
- Non-contact design avoids optical surface fouling and eliminates measurement drifts.
- LED light source ensures long life and stable measurements.
- Heated optics prevent condensation effects for accurate results.
- Integrated constant head ensures stable sample flow to the measuring chamber.
- Cost-efficient operation is guaranteed, as no consumables or wear parts are required.
- Manual or automated chamber draining for cleaning.
Turbiwell W/LED Specifications
Non-contact turbidity (nephelometer according to EPA 180.1) with control electronics, sample chamber, drain valve for chamber purging (manual or automated) and optional sample degasser.
Complete system with:
- Complete system mounted on a PVC panel (15.75 × 33.5 in), factory calibrated (formazine) and ready for operation.
- Measuring and control transmitter in an aluminium enclosure (IP 66).
- Two freely scalable signal outputs with simulation mode.
- Potential-free alarm contact for programmable alarm values and instrument fault indication.
- Monitoring of maintenance requirements.
| Measuring range | 0 – 100.0 NTU |
|---|---|
| Precision | ± (0.003 NTU + 1% of reading) |
| Accuracy (formazine primary standard) | 0 – 40 NTU: ± (0.01 FNU + 2% of reading) / > 40 NTU: ± 5% of reading |
| Sample flow rate | Approx. 5 – 16 gal/h |
| Sample temperature | Up to 113 °F |
| Power supply | 100 – 240 VAC (±10%) / 10 – 36 VDC |
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