VIKING-PH125 Laboratory pH/mV Meter
COLO.SCIENCE KNOWLEDGE
pH and mV in routine laboratory water testing
Explore COLO.Science articles on pH theory, USA/NIST buffers, electrode care and good
laboratory practice for drinking water, process water and effluent analysis, illustrated with
real-world COLO.Science water quality applications.
TYPICAL APPLICATIONS
- Water and wastewater laboratories (drinking water, process water, effluent control).
- Food & beverage quality control, dairy applications and agriculture.
- Pharmaceutical and biotechnology laboratories (buffers and in-process control).
- Educational and research laboratories teaching electrochemistry.
- General laboratory pH/mV measurements requiring robust, GLP-ready documentation.
MODEL & PARAMETERS
| Model | Measured parameters | Display & operation |
|---|---|---|
| VIKING-PH125 | pH, mV, Rel.mV and temperature; ±0.01 pH accuracy in the range −2.00 to 20.00 pH; automatic 1–5 point calibration with USA/NIST buffer sets; ATC/MTC temperature compensation; electrode slope preview, graphical calibration curve and electrode usage status. |
5.0″ color touch screen (0.01-grade display); simultaneous display of pH, temperature and buffer value; direct reading in pH, mV and Rel.mV; statistics functions to summarize, review, analyze, compare and preserve results; memory for 500 sets with power-off protection. |
TECHNICAL SPECIFICATIONS (EXCERPT)
Measurement ranges & performance
| pH | Range: −2.00 to 20.00 pH; Resolution: 0.01 pH; Accuracy: ±0.01 pH; automatic 1–5 point calibration (USA/NIST buffers); one-key calibration; slope preview and graphical calibration curve. |
| mV / ORP | Range: −1999.9 to +1999.9 mV; Resolution: 0.1 mV; Accuracy: ±1 mV; supports mV and Rel.mV modes for ORP and general redox measurements. |
| Temperature | Range: −30.0 to 105 °C; Resolution: 0.1 °C; Accuracy: ±0.2 °C; ATC/MTC temperature compensation. |
| Display | 5.0″ color touch screen (0.01-grade); synchronous display of pH, temperature and buffer value; intuitive menu navigation. |
| Data & GLP | Data memory for up to 500 sets with power-off protection; statistics functions (summarize, review, analyze, compare and preserve results); supports routine QA/GLP workflows with traceable data. |
| Interface | RS-232 interface; optional printer for hard-copy reports and archived records. |
| Housing & power | Benchtop laboratory housing with electrode holder; external 9–12 V AC adapter. |
For the complete specification table, please refer to the
VIKING-PH125 datasheet (PDF)
.
STANDARD DELIVERY
- VIKING-PH125 laboratory pH/mV meter.
- Digital 3-in-1 pH electrode.
- Electrode holder and base.
- pH buffer solutions (pH 4.01, 7.00, 10.01).
- Temperature probe (if applicable) and external 9–12 V AC adapter.
- Quick start guide.
Exact kit contents may vary by configuration and region; please refer to the
current catalog and quotation.
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