COLO.Science · Technical SpecificationVIKING250
Benchtop Turbidity Meter · 0–4000 NTU · ±2 % + 0.02 NTU · Tungsten lamp · EPA 180.1 · 7.0″ touchscreen
VIKING250 Benchtop Turbidity Meter 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.
Benchtop Turbidity Meter0–4000 NTU±2 % + 0.02 NTUTungsten lampEPA 180.17.0″ touchscreenNTU / FNU / EBC1–8 pts
VIKING250 · Benchtop Turbidity Meter
Standard delivery · 5 turbidity vials, power adapter
Model / SKUVIKING250
PRO5781
PRO5781
Address / HQPolje ob Sotli 4
SI-3255, Slovenia
SI-3255, Slovenia
Contactsales@colo.si
+386 70 713 437
+386 70 713 437
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VIKING250 · Benchtop Turbidity MeterTechnical data sheet · Informational document · Controlled electronic document
Manufacturer contact: sales@colo.si · +386 70 713 437
Manufacturer contact: sales@colo.si · +386 70 713 437
VIKING250 · technical specificationBenchtop Turbidity Meter · Tungsten lamp (US EPA 180.1)
0–4000 NTU±2 % + 0.02 NTUTungsten lampEPA 180.17.0″ touchscreen— Nephelometric or ratio
📋 Product Overview
Application profile
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.
Advantages
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)
Key features
Measuring principle: Nephelometric or ratio
Units: NTU, FNU, EBC
Resolution: 0.001 / 0.01 / 0.1 / 1 NTU
Display: 7.0″ colour touchscreen
Power supply: Adapter 100–240 V AC / 24 V DC
Core technical summary
| Parameter | Specification |
|---|---|
| Model | VIKING250 |
| SKU | PRO5781 |
| Instrument type | Benchtop Turbidity Meter |
| Light source | Tungsten lamp (US EPA 180.1) |
| Range (auto) | 0.000–9.999 / 10.00–99.99 / 100.0–999.9 / 1000–4000 NTU |
| Accuracy | ±2 % of reading + 0.02 NTU |
| Repeatability | ≤0.5 % |
| Calibration | Zero + 1–8 points with Formazin standards |
Range0–4000 NTU
Accuracy±2 % + 0.02 NTU
Repeatability≤0.5 %
Calibration points1–8
Technical values are provided for product selection. The delivered configuration, electrode type and accessory set are confirmed in the official COLO.Science quotation.
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📊 Technical Parameters
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Light source | Tungsten lamp (US EPA 180.1) | Reading modes | Continuous, average and auto reading |
| Measuring principle | Nephelometric or ratio | Calibration | Zero + 1–8 points with Formazin standards |
| Range (auto) | 0.000–9.999 / 10.00–99.99 / 100.0–999.9 / 1000–4000 NTU | Data memory | 2000 results, GLP (user ID, date, time) |
| Resolution | 0.001 / 0.01 / 0.1 / 1 NTU | Data output | RS-232 (printer) |
| Accuracy | ±2 % of reading + 0.02 NTU | Display | 7.0″ colour touchscreen |
| Repeatability | ≤0.5 % | Power supply | Adapter 100–240 V AC / 24 V DC |
| Stability | ±0.5 % FS / 30 min | Dimensions | 300 × 200 × 88 mm |
| Units | NTU, FNU, EBC | Weight | approx. 1.5 kg |
Specification notes
Vials: use clean, scratch-free vials; wipe them with silicone oil and always insert them in the same orientation.
Standards: calibration standards are not part of the standard delivery; order the set that matches the range.
Calibration: Formazin-based standards; the stored calibration can be reset to factory data.
Light source: 860 nm LED meets ISO 7027 (colour-independent); the tungsten lamp meets US EPA 180.1.
Calibration procedure: let the meter warm up; read the standards from the lowest to the highest concentration as prompted; then verify with a standard that the reading is within tolerance.
Good practice: avoid air bubbles, keep the outer vial wall dry and clean, do not shake standards vigorously, use standards within their expiry date and keep ambient light stable. Calibrate weekly in routine work or before critical tests, at least monthly at low use.
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🧪 Accessories and consumables
PRO7162
Turbidity vials, 5 pcs
Optical glass sample vials with screw caps; keep them clean and scratch-free, mark the orientation.
Standard delivery⚗️
PRO7163
Turbidity standards 20/200/500/1000/2000 NTU
Long-life calibration standard set for zero and multi-point calibration.
OptionalMore accessories and consumables
| SKU | Item | Use | Status |
|---|---|---|---|
| — | Silicone oil and lint-free cloth | Vial care | Optional |
| PRO7162 | Turbidity vials, 5 pcs | Measurement | Optional |
| — | RS-232 printer | Documentation | Optional |
| PRO7164 | Turbidity standards 20/200/500/1000 NTU | Calibration | Optional |
Standard delivery: meter, 5 turbidity vials, power adapter. Standard delivery is confirmed in the quotation.
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🖼️ Visuals, Configuration Guidance and Support
Ordering information
| Item | Value |
|---|---|
| Model | VIKING250 |
| SKU | PRO5781 |
| Instrument type | Benchtop Turbidity Meter |
| Standard delivery | 5 turbidity vials, power adapter |
| Power supply | Adapter 100–240 V AC / 24 V DC |
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.
Manufacturer and support
COLO Lab Experts
Polje ob Sotli 4, SI-3255, Slovenia
Selection guidance: VIKING250 is chosen for US EPA 180.1 measurements up to 4000 NTU. COLO.Science helps you choose standards and vials.
Quick contact
COLO.Science · Turbidity meter configuration support
Need help choosing the right turbidity meter?
Tell us the sample type, the expected turbidity and the standard you report by. COLO.Science will confirm the VIKING250 configuration, standards and vials.
Ask us:
Price and current discount, delivery time, electrode selection for your sample, calibration standards, installation and operator training, spare electrodes and accessories — write to sales@colo.si or call us.
Price and current discount, delivery time, electrode selection for your sample, calibration standards, installation and operator training, spare electrodes and accessories — write to sales@colo.si or call us.
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