VIKING-DO511 — Portable Dissolved Oxygen Meter · Optical DO/Temp. · 4.3″ Touch LCD
OVERVIEW
The VIKING-DO511 portable dissolved oxygen meter is designed for reliable field and lab measurements of
dissolved oxygen (ppm), DO saturation (%) and temperature using an
optical DO sensor. A 4.3″ color high-contrast LCD touchscreen supports fast operation,
while the intelligent menu structure provides user, calibration, electrode, method and data management.
VIKING-DO511 supports Auto-Read (Fast/Medium/Slow), Timed and Continuous modes,
plus Auto-Hold endpoint locking. For data integrity it offers GLP-compliant storage (1000 groups)
with review/compare/recalculate tools and USB connectivity. With IP65 protection,
barometric pressure compensation (auto/manual) and salinity correction, DO511 is built for demanding water-quality workflows.
Optical portable DO meter with 4.3″ touchscreen for accurate DO (ppm), % saturation and
temperature measurements. Includes Auto-Hold, GLP data storage (1000 groups),
USB export, and IP65 waterproof housing for field monitoring.
COLO.Science · Practical and robust equipment for everyday laboratory workflows.
COLO.SCIENCE KNOWLEDGE
Practical insights for dissolved oxygen measurement
Explore COLO.Science resources on dissolved oxygen fundamentals, % saturation vs ppm reporting,
barometric pressure and salinity compensation, and good practice for field water monitoring.
Product Overview
VIKING-DO511 is a compact, touchscreen portable dissolved oxygen meter for water quality monitoring in
environmental, municipal and industrial workflows. The instrument combines an optical DO electrode with a robust,
waterproof housing and an interface optimized for field use. With measurement modes for fast screening and stabilized endpoint logging,
DO511 supports repeatable results when reporting dissolved oxygen as ppm (mg/L), % saturation or both.
Configuration notice — delivery depends on selected options
Dissolved oxygen meters may be delivered in different configurations depending on the application and selected accessories.
The official technical specification defines the exact configuration, included components and available options for each model/variant.
Content shown on this website is provided for general informational purposes only and may not represent the final delivered configuration.
Specifications may change without notice.
Key Features
DO (ppm) + % saturation
4.3″ color touchscreen
Auto-Read (F/M/S)
Timed / Continuous
Auto-Hold endpoint
GLP data (1000 groups)
USB export
Pressure + salinity comp.
IP65 waterproof
Measurement
Stable DO reporting (ppm / % saturation) with compensation & endpoint control
Auto-Read + status prompts
Fast/Medium/Slow stability behavior with Reading/Stable/Locked prompts for consistent field work.
Auto-Hold endpoint
Locks the endpoint to reduce operator variability and support repeatable documentation.
Pressure + salinity compensation
Auto/manual barometric correction and salinity factor adjustment improve DO accuracy in real samples.
DO Measurement (ppm)
- Range: 0.00 to 20.00 ppm
- Resolution: 0.01 mg/L
- Accuracy: ±0.3 ppm
- Sensor: Optical
- Calibration: Air-saturated water or Zero point
- Pressure compensation: Auto / Manual
- Salinity factor correction: Manual
DO Saturation (%)
- Range: 0.0 to 200.0%
- Resolution: 0.10%
- Accuracy: ±10.0%
- Reporting: ppm, % saturation, or both
- Pressure units: kPa / mbar / Torr / Atm
- Stability prompts: Reading / Stable / Locked
Temperature & Data
- Temperature range: 0 to 50 °C
- Resolution: 0.1
- Relative accuracy: ±0.2
- ATC / MTC support
- GLP data storage: 1000 groups
- Data analysis: review / compare / recalculate
- Connectivity: USB 2.0
Technical Specifications (VIKING-DO511)
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Model | VIKING-DO511 | Model code | DO511T |
| Product number | PRO2427 | Sensor type | Optical |
| DO range | 0.00 to 20.00 ppm | DO resolution | 0.01 mg/L |
| DO accuracy | ±0.3 ppm | DO saturation range | 0.0 to 200.0% |
| % resolution | 0.10% | % accuracy | ±10.0% |
| Temperature range | 0 to 50 °C | Temp. resolution | 0.1 |
| Temp. accuracy | ±0.2 (relative) | Reading modes | Auto-Read (F/M/S), Timed, Continuous |
| Auto-Hold | Yes | Data storage | 1000 groups (GLP) |
| Display | 4.3″ color touchscreen LCD | Connectivity | USB 2.0 |
| Probe connector | 6-pin aviation connector | Protection class | IP65 |
| Power | Rechargeable Li-battery + AC adapter (100–240 V / DC 5 V) | Auto shutdown | 300/600/1200/1800/3600 sec., off |
| Dimensions | 90 × 255 × 40 mm | Weight | 500 g (1.1 lb) |
Note: For the complete, controlled specification, use the official technical sheet:
VIKING-DO511 Technical Specifications.
Standard Delivery
- Optical DO electrode DO-968-HC (3 m cable)
- Zero oxygen calibration solution powder (vial)
- Electrode holder
- Silicone rubber case
- Wristbands
- Touch pen
- Carrying case
Exact kit contents may vary by region; please refer to the current catalog and quotation for final configuration.
VIKING Dissolved Oxygen Series — Model Comparison
Compare portable and benchtop DO meters by sensor, protection class, display and key measurement ranges.
| Parameter | VIKING-DO511 (Portable) | VIKING-DO500 (Benchtop) |
|---|---|---|
| Sensor | Optical | Polarographic |
| DO range | 0.00–20.00 ppm | 0.00–99.99 ppm |
| DO saturation | 0.0–200.0% | 0.0–600% |
| Display | 4.3″ touch LCD | 7.0″ touch LCD |
| Protection | IP65 | IP54 |
| Connectivity | USB | USB, RS-232 |
VIKING-DO511 — Portable Dissolved Oxygen Meter
A rugged IP65 touchscreen DO meter with optical sensing, Auto-Hold,
GLP data storage (1000 groups) and USB export — supported by COLO.Science.
COLO.Science · Practical and robust equipment for everyday laboratory workflows.
