COLO.Science — Water Quality · Turbidity meters
VIKING250 Benchtop Turbidity Meter
VIKING250 measures turbidity of drinking water, process water and wastewater by the nephelometric (or ratio) method with a tungsten lamp (US EPA 180.1): 0–4000 NTU, ±2 % of reading + 0.02 NTU, zero and 1–8-point Formazin calibration, 2000-result GLP memory.
Overview
Applications
- Drinking water: turbidity control after filtration and disinfection.
- Wastewater: influent, effluent and clarifier monitoring.
- Industry: process water, beverages, pharma and chemicals.
- Environment: surface water and field sampling.
Why VIKING250
- Accuracy: ±2 % of reading + 0.02 NTU
- Calibration: Zero + 1–8 points with Formazin standards
- Light source: Tungsten lamp (US EPA 180.1)
- Data memory: 2000 results, GLP (user ID, date, time)
Technical specifications
| Model | VIKING250 |
| SKU | PRO5781 |
| Light source | Tungsten lamp (US EPA 180.1) |
| Measuring principle | Nephelometric or ratio |
| Range (auto) | 0.000–9.999 / 10.00–99.99 / 100.0–999.9 / 1000–4000 NTU |
| Resolution | 0.001 / 0.01 / 0.1 / 1 NTU |
| Accuracy | ±2 % of reading + 0.02 NTU |
| Repeatability | ≤0.5 % |
| Stability | ±0.5 % FS / 30 min |
| Units | NTU, FNU, EBC |
| Reading modes | Continuous, average and auto reading |
| Calibration | Zero + 1–8 points with Formazin standards |
| Data memory | 2000 results, GLP (user ID, date, time) |
| Data output | RS-232 (printer) |
| Display | 7.0″ colour touchscreen |
| Power supply | Adapter 100–240 V AC / 24 V DC |
| Dimensions | 300 × 200 × 88 mm |
| Weight | approx. 1.5 kg |
ACCESSORIES AND CONSUMABLES
Accessories for the VIKING250
The VIKING250 is delivered with 5 turbidity vials, power adapter. Calibration standards are ordered separately to match the measuring range; spare vials and silicone oil keep the readings reliable.
PRO7162
Turbidity vials, 5 pcs
Optical glass sample vials with screw caps; keep them clean and scratch-free, mark the orientation.
Standard delivery
Consumables on request
- PRO7163 — Turbidity standards 20/200/500/1000/2000 NTU
- Silicone oil and lint-free cloth
- PRO7162 — Turbidity vials, 5 pcs
- RS-232 printer
- PRO7164 — Turbidity standards 20/200/500/1000 NTU
Standards, vials and consumables on request. Full catalogue: Electrochemistry catalogue →
Selection guidance
VIKING250 is chosen for US EPA 180.1 measurements up to 4000 NTU. COLO.Science helps you choose standards and vials.
Configuration checklist
- Range: low turbidity (drinking water) or up to 4000 NTU (wastewater).
- Standard: ISO 7027 (LED) or US EPA 180.1 (tungsten lamp).
- Place of use: laboratory bench or field (IP65 portable).
- Calibration: weekly in routine work or before critical tests, from the lowest to the highest standard, then verification.
Sales and support for international customers
COLO Lab ExpertsPolje ob Sotli 4, SI-3255 Buče, Slovenia
Phone: +386 70 713 437 · Email: sales@colo.si · Web: colo.si
We supply laboratories across Europe directly and through partners. B2B prices are quoted net, excluding VAT.
