VIKING-PH300 Benchtop pH Meter
COLO.SCIENCE KNOWLEDGE
pH and mV in water quality testing
Explore COLO.Science articles on pH theory, calibration buffers, electrode care and good
laboratory practice in water and wastewater analysis, using real-world examples from COLO.Science
water quality applications.
TYPICAL APPLICATIONS
- Water and wastewater laboratories (drinking water, surface water, process water, basic effluent control).
- Environmental monitoring and field samples with laboratory evaluation.
- Food & beverage QA/QC, especially pH-critical steps (dairy, beverages, fermentation).
- Academic teaching laboratories and training in electrochemistry.
- General benchtop pH/mV measurements in research and industry.
MODEL & PARAMETERS
| Model | Measured parameters | Display & operation |
|---|---|---|
| VIKING-PH300 | pH, mV, temperature; 1–5 point pH calibration with selectable buffer groups (NIST, DIN, GB, USA, GOST), ATC/MTC temperature compensation, electrode diagnosis (slope/offset). |
7.0″ LCD with backlight; Auto Read (Fast/Medium/Slow), Timed and Continuous modes, status prompts (Reading / Stable / Locked), Auto-Hold, date & time, factory reset. |
TECHNICAL SPECIFICATIONS (EXCERPT)
Measurement ranges & performance
| pH | Range: −2.00 to 20.00 pH; Resolution: 0.1 / 0.01 pH; Accuracy: ±0.01 pH; calibration up to 5 points; buffer groups NIST, DIN, GB, USA, GOST with standard recognition; electrode diagnosis (slope & offset display). |
| mV | Range: −2000.0 to 2000.0 mV; Resolution: 0.1 mV; Accuracy: ±0.3 mV or ±0.1% FS. |
| Temperature | Range: −5 to 110 °C (23 to 230 °F); Units: °C, °F; Resolution: 0.1; Accuracy: ±0.2 °C; ATC/MTC temperature compensation. |
| Measurement modes | Auto Read (Fast / Medium / Slow), Timed and Continuous; prompts: Reading, Stable, Locked; Auto-Hold endpoint; auto shutdown 1–60 min or off. |
| Data & GLP | Data storage: 500 results per parameter; GLP-friendly data review; date & time stamp. |
| Inputs & outputs | pH electrode input: BNC (Q9); temperature probe: 4-pin aviation connector; interfaces: USB and RS-232 (printer/PC). |
| Protection & power | IP rating: IP54; dimensions: 242 × 195 × 68 mm; net weight: 900 g (1.98 lb); carton: 370 × 320 × 220 mm; shipping weight: 2.5 kg; power: AC adapter 100–240 V input, DC 20 V output. |
For the complete specification table, please refer to the
VIKING-PH300 datasheet (PDF)
.
STANDARD DELIVERY
- 3-in-1 pH composite electrode.
- NIST pH buffer solutions 4.01 / 7.00 / 10.01 (50 mL each).
- Electrode stand EHO5.
- AC adapter (100–240 V AC → 20 V DC).
Exact kit contents may vary by region; please refer to the current catalog and quotation.
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