COLO.Science · Technical Specification
VIKING-DO511
Touch screen Portable DO Meter · DO/Temp. (DO Saturation) · IP65
Portable dissolved oxygen meter for field and laboratory measurements with optical DO sensing.
Supports DO concentration (ppm), DO saturation (%) and temperature with a
4.3″ color high-contrast LCD touchscreen. Intelligent operating system provides
user/calibration/electrode/method/data management and log management. Measurement modes include
Auto-Read (Fast/Medium/Slow), Timed and Continuous, with
Auto-Hold endpoint locking. Includes GLP-compliant storage (1000 groups), data review/compare/recalculate,
USB communication, ATC/MTC, air-saturated water or zero oxygen calibration,
auto/manual barometric pressure compensation, and manual salinity factor correction.
DO 0.00–20.00 ppm
DO SAT 0.0–200%
TEMP 0–50°C
OPTICAL
4.3″ TOUCHSCREEN
ATC / MTC
GLP 1000
USB
IP65
Document type: Technical Specification Sheet
Format: Landscape (Word/Outlook-ready)
Format: Landscape (Word/Outlook-ready)
Instrument
VIKING-DO511 · COLO.Science
Address (HQ)
Polje ob Sotli 4
SI-3255, Slovenia
SI-3255, Slovenia
Contact
VIKING-DO511 · Technical Specification
Document ID: COL-TEC-VIKING-DO511-EN
Version: Landscape
Informational technical sheet · Non-binding · Controlled electronic document
Version: Landscape
Informational technical sheet · Non-binding · Controlled electronic document
VIKING-DO511 · Touch screen Portable DO Meter technical specification sheet
DO 0.00–20.00 ppm
DO SAT 0.0–200%
TEMP 0–50°C
OPTICAL
4.3″ TOUCHSCREEN
USB
IP65
— GLP storage (1000 groups) / Auto-Hold / pressure & salinity compensation
General & performance specifications
| instrument identity | |
|---|---|
| instrument | VIKING-DO511 |
| model | DO511T |
| product number | PRO2427 |
| parameters | DO / Temperature (DO Saturation) |
| display | Color high-contrast LCD touchscreen, 4.3″ |
| intelligent operation | User management, calibration management, electrode management, method management, data management, log management |
| dissolved oxygen concentration (DO) | |
| sensor type | Optical |
| range | 0.00 to 20.00 ppm |
| resolution | 0.01 mg/L |
| accuracy | ±0.3 ppm |
| calibration points | Air-saturated water or zero point |
| barometric compensation | Yes (Auto / Manual) |
| manual salinity factor correction | Yes |
| selectable pressure unit | kPa, mbar, Torr, Atm |
| DO saturation | |
| range | (0.0 to 200.0)% |
| resolution | 0.10% |
| accuracy | ±10.0% |
| temperature | |
| range | 0 to 50 °C |
| unit | °C |
| resolution | 0.1 |
| relative accuracy | ±0.2 |
| measurement workflow & data | |
| reading modes | Auto Read (Fast, Medium, Slow), Timed, Continuous |
| reading prompts | Reading, Stable, Locked |
| auto-hold | Yes (locks measurement endpoint) |
| temp. compensation | ATC, MTC |
| data management | Data Storage 1000 Groups |
| GLP features | Yes |
| data analysis | Review, compare and recalculate results |
| reset | Factory default restore |
| inputs, outputs & protection | |
| DO with temp. probe input | 6-pin aviation connector |
| USB | USB 2.0 (flash memory device, PC, scanner) |
| backlight | Yes |
| auto shutdown | 300, 600, 1200, 1800, 3600 sec., off |
| IP rating | IP65 |
| date and time | Yes |
| power & physical | |
| power | Rechargeable lithium battery, AC adapter (100–240 V AC input, DC 5 V output) |
| dimensions | 90 × 255 × 40 mm |
| weight | 500 g (1.1 lb) |
| dimensions (carton) | 410 × 330 × 165 mm |
| weight (gross) | 5.5 kg |
Key instrument features
| 4.3″ color touchscreen | High-contrast LCD touchscreen with clear reading prompts for fast field operation. |
| Intelligent OS | User/calibration/electrode/method/data management plus log management. |
| Reading modes | Auto Read (Fast/Medium/Slow), Timed and Continuous with Reading/Stable/Locked prompts. |
| Auto-Hold endpoint | Senses and locks the measurement endpoint to reduce user variability. |
| Compensation tools | ATC/MTC, auto/manual barometric pressure compensation, manual salinity factor correction. |
| Data integrity | GLP storage (1000 groups) with review/compare/recalculate tools. |
| USB communication | USB 2.0 export and device connectivity for documentation workflows. |
| IP65 | Waterproof housing designed for outdoor and field measurements. |
Typical applications
| field dissolved oxygen profiling (rivers, lakes, reservoirs) |
| aquaculture and fisheries monitoring (DO and % saturation control) |
| wastewater and process water monitoring |
| environmental and municipal water laboratories |
| spot checks and verification in QC workflows |
Included / typical delivery (reference)
- DO-968-HC optical DO electrode (3 m cable)
- Zero oxygen calibration solution powder (vial)
- Electrode holder
- Silicone rubber case
- Wristbands
- Touch pen
- Carrying case
Options & notes
| calibration practice | Use air-saturated water for routine calibration; use a zero point when SOP/validation requires. |
| pressure & salinity | Set the correct pressure unit and apply salinity correction for saline samples to maintain accuracy. |
| power management | Use Auto Shutdown to extend battery service life during fieldwork. |
| configuration notice | Final delivered configuration may vary by region and quotation package; specifications may change without notice. |
Practical operation notes
| topic | recommendation | note |
|---|---|---|
| probe preparation | Inspect the optical DO electrode and ensure stable readings before logging results. | Stability prompts (Reading/Stable/Locked) help standardize measurement endpoints. |
| calibration | Calibrate with air-saturated water for routine work; apply zero oxygen calibration when required. | Calibration choice depends on SOP and expected DO range. |
| compensation | Use ATC (or MTC when needed), and apply barometric pressure + salinity correction for best accuracy. | Pressure and salinity influence DO and % saturation calculations. |
| data management | Store GLP groups (1000) and export results via USB for reporting and traceability. | Built-in data analysis supports review/compare/recalculate. |
Contact & Support
Headquarters address
Polje ob Sotli 4
SI-3255, Slovenia
Application guidance: tell us your environment (freshwater, wastewater, process water, aquaculture),
the required reporting format (ppm, % saturation, or both) and typical temperature range.
We will propose the optimal configuration and accessories for your workflow.
Quick contact
Web:
colo.si
PDF Tech Spec:
VIKING-DO511.pdf
Email:
sales@colo.si
Phone:
+386 64 222 724
Knowledge hub:
COLO.Science
Manufacturer & configuration notice (important):
Specifications in this document are provided for general reference and may represent a typical configuration. COLO.Science reserves the right to change technical specifications without notice.
For procurement and tender purposes, the only valid and binding specification is the official COLO.Science quotation and the accompanying technical specification that is engineering-approved.
Specifications in this document are provided for general reference and may represent a typical configuration. COLO.Science reserves the right to change technical specifications without notice.
For procurement and tender purposes, the only valid and binding specification is the official COLO.Science quotation and the accompanying technical specification that is engineering-approved.