VIKING-PH310F — Portable pH/mV Meter

pH
mV
Temperature
ATC / MTC
1–5 points
3.5″ LCD
USB
IP65

COLO.SCIENCE KNOWLEDGE

pH & mV in water and process quality control

Explore COLO.Science resources on electrochemistry fundamentals, pH theory, calibration buffers, GLP reporting and practical electrode care — built for laboratory and field teams.

OVERVIEW

A reliable portable pH/mV meter is one of the most useful electrochemistry tools in routine laboratory workflows and on-site sampling. Whether you are verifying drinking water quality, controlling wastewater discharge, documenting process stability, or checking fermentation endpoints, you need measurements that are stable, traceable and easy to reproduce. The VIKING-PH310F is designed for exactly these scenarios: fast setup, clear menus, robust protection and strong data handling.

The instrument measures pH, mV and temperature and supports 1–5 point calibration with automatic recognition of standard buffers. That means you can standardize daily routine checks, reduce operator variability and quickly validate electrode condition. Built-in electrode diagnostics displays slope and offset, helping you decide when cleaning, regeneration or electrode replacement is needed — a practical benefit for teams that must keep uptime high.

With a 3.5″ backlit LCD, multiple measurement modes and Auto-Hold stability detection, VIKING-PH310F supports both quick field readings and controlled laboratory checks. It also includes GLP functions and internal memory for structured reporting, making it a solid choice for QC environments where traceability matters.

VIKING-PH310F portable pH/mV meter for laboratory and field use — pH (−2.00 to 20.00), mV (±2000.0) and temperature (−5 to 110°C) with 1–5 point calibration, ATC/MTC, Auto-Read modes and GLP memory for traceable results.
COLO.Science · Practical electrochemistry solutions for everyday QA/QC workflows.

TYPICAL APPLICATIONS

Where VIKING-PH310F fits best

Water quality control and environmental monitoring — in the lab and in the field.
Verification of drinking water, wastewater and industrial effluents with consistent documentation.
Food & beverage QC: basic checks, fermentation monitoring and routine process verification.
Electrochemistry education in universities, higher education programs and training laboratories.
On-site sampling for industrial processes where immediate pH/mV feedback improves decision-making.

If your workflow needs structured, repeatable readings (rather than “one-off” measurements), prioritize stable calibration routines, documented electrode condition and controlled temperature compensation — all supported by VIKING-PH310F.

Portable pH/mV meter built for reproducible results

In everyday QA/QC and field service, the real challenge is not “getting a number” — it is getting a number you can trust tomorrow, next week and during audits. VIKING-PH310F helps you standardize measurement practice through buffer recognition, multi-point calibration and stability-driven reading modes. The meter supports Auto-Read (Fast/Medium/Slow), Timed-Read and Continuous-Read, which lets you match the reading strategy to sample behavior (clean water vs process fluids vs unknown matrices).

Temperature effects are addressed via ATC (automatic) or MTC (manual), while the instrument’s clear screen and menus keep the workflow simple for multi-user environments. For regulated processes, internal storage and GLP fields support traceable capture of readings with date/time, reducing manual transcription and helping you maintain consistency across shifts.

Because electrode performance changes with use, cleaning and sample contamination, the built-in diagnostics (slope/offset) is more than a “nice to have.” It directly supports preventive maintenance: you can detect drift early and reduce repeats, wasted buffers, and questionable results. That’s often the difference between a smooth daily routine and frequent troubleshooting.

MODEL & PARAMETERS

Model	Measured parameters	Display & operation
VIKING-PH310F	Measures pH, mV and temperature. Supports 1–5 point calibration with automatic recognition of standard buffers and selectable buffer groups (NIST, DIN, GB, USA). Electrode diagnostics shows slope and offset, helping users judge when cleaning, regeneration or replacement is needed.	Equipped with a 3.5″ backlit LCD and clear menus. Modes: Auto-Read (Fast/Medium/Slow), Timed-Read and Continuous-Read with Auto-Hold stability detection. IP65 protection, memory for 500 data sets per parameter with GLP functions and USB output support routine and field measurements.

TECHNICAL SPECIFICATIONS (EXTRACT)

Measurement ranges and performance

pH	Range: −2.00 to 20.00 pH; resolution: 0.1 / 0.01 pH; accuracy: ±0.01 pH. Up to 5-point calibration with automatic buffer recognition. Buffer groups: NIST, DIN, GB, USA; user-defined buffers supported.
mV	Range: −2000.0 to 2000.0 mV; resolution: 0.1 mV; accuracy: ±0.3 mV or ±0.1% FS. Suitable for ORP and general redox checks.
Temperature	Range: −5 to 110°C (23 to 230°F); units: °C/°F; resolution: 0.1; accuracy: ±0.2°C. Compensation: automatic (ATC) or manual (MTC).
Measurement modes	Auto-Read (Fast/Medium/Slow), Timed and Continuous. Status indication: Reading, Stable, Locked. Auto-Hold detects stable endpoint and locks the displayed value.
Data & GLP	500 results per parameter with GLP functions. Each record includes date and time for traceability in regulated environments.
Inputs / outputs	pH electrode: BNC (Q9); temperature probe: 4-pin aviation connector. USB output supports simplified transfer and reporting.
Display & power	3.5″ LCD with backlight. Auto power-off: 300/600/1200/1800/3600 s or OFF. Power: rechargeable Li battery and AC adapter (100–240 V AC input, 5 V DC output).
Protection & dimensions	IP65; dimensions: 80 × 255 × 35 mm; weight: 400 g. Compact and robust for daily lab use and outdoor field measurements.

For the complete technical specification table, see the
VIKING-PH310F catalog (PDF).

STANDARD DELIVERY

What is included

PRO4153 3-in-1 composite pH electrode.
NIST pH buffer solutions (4.01 / 7.00 / 10.01; 50 mL per bottle).
Electrode holder.
Protective silicone cover and wrist strap.
Carrying case.

The exact kit content may vary by configuration and region, but the essential components required to start pH and mV measurements with the VIKING-PH310F are included.

DOWNLOADS & SUPPORT

Documents, training and expert help

For long-term stability in electrochemistry measurements, focus on consistent calibration practice, correct buffer handling, and routine electrode maintenance. If you want help selecting the right electrode for your matrix (clean water, wastewater, process fluids, food samples), COLO.Science can propose the best configuration for your workflow.