COLO.Science · Technical SpecificationVIKING-PH310F
Portable pH / mV Meter · Temperature · 3.5″ LCD · Keypad · IP65
VIKING-PH310F Portable pH / mV Meter is a professional portable meter for accurate pH, mV and temperature measurement in the field and in the laboratory. It combines a 3.5″ backlit LCD, 1–5 point pH calibration with automatic buffer recognition, electrode diagnostics, GLP-compliant data logging, USB output, a rechargeable Li battery and IP65 protection.
Portable pH meterpH / mVTemperature3.5″ LCD±0.01 pH1–5 point calibrationATC / MTCUSBGLPIP65
VIKING-PH310F · Portable pH / mV Meter
► Watch the operation video (5:11) · installation, settings, calibration and measurement
Model / SKUVIKING-PH310F
PRO3567
PRO3567
Address / HQPolje ob Sotli 4
SI-3255, Slovenia
SI-3255, Slovenia
Contactsales@colo.si
+386 70 713 437
+386 70 713 437
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VIKING-PH310F · Portable pH / mV MeterTechnical data sheet · Informational document · Controlled electronic document
Manufacturer contact: sales@colo.si · +386 70 713 437
Manufacturer contact: sales@colo.si · +386 70 713 437
VIKING-PH310F · technical specificationPortable keypad meter for pH, mV and temperature measurement
pH −2.00…20.00mV ±2000.0Temp. −5…110 °CNIST / DIN / GB / USAAuto / timed / continuous— Reliable portable pH and mV measurement for field and laboratory use
📋 Product Overview
Application profile
Water quality: drinking water, wastewater, environmental samples and routine water monitoring.
Field and laboratory: portable format with protective case and carrying case for on-site and bench use.
Industrial sampling: pH, mV and temperature checks in process and quality control.
Education and research: electrochemistry training, calibration practice and mV measurement.
Design and handling advantage
Keypad and LCD: 3.5″ backlit LCD with direct keypad for setup, calibration and measurement.
Portable protection: silicone protective case, wristband and carrying case for mobile work.
Calibration control: 1–5 point pH calibration with automatic buffer recognition and selectable buffer groups.
Data traceability: GLP logging with date and time for measurement and calibration records.
Key features
pH: −2.00 to 20.00 pH, 0.1 / 0.01 pH resolution, ±0.01 pH accuracy.
mV: −2000.0 to 2000.0 mV, 0.1 mV resolution.
Temperature: −5 to 110 °C with ATC / MTC compensation.
Reading modes: Auto-Read, Timed-Read and Continuous-Read with Auto-Hold endpoint.
Connectivity: USB output for PC or printer.
Protection: IP65 housing and rechargeable Li battery.
Core technical summary
| Parameter | Specification |
|---|---|
| Model | VIKING-PH310F |
| SKU | PRO3567 |
| Instrument type | Portable pH / mV meter with temperature |
| Display | 3.5″ backlit LCD |
| pH range | −2.00 to 20.00 pH |
| pH accuracy | ±0.01 pH |
| mV range | −2000.0 to 2000.0 mV |
| Temperature range | −5 to 110 °C |
| Data memory | 500 results per parameter, GLP |
| Protection | IP65 |
pH accuracy±0.01 pH
Calibration1–5 points
Data memory500 results / parameter
ProtectionIP65
Technical values are provided for product selection. The delivered configuration, electrode type and accessory set are confirmed in the official COLO.Science quotation.
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📊 Technical Parameters
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| pH range | −2.00 to 20.00 pH | Endpoint | Auto-Hold |
| pH resolution | 0.1 / 0.01 pH | Display | 3.5″ LCD with backlight |
| pH accuracy | ±0.01 pH | Electrode diagnostics | Slope and offset display |
| pH calibration | 1–5 points | Data memory | 500 results per parameter |
| Buffer recognition | Automatic | GLP | Date and time stamp |
| Buffer groups | NIST, DIN, GB, USA; custom buffers | pH input | BNC (Q9) |
| mV range | −2000.0 to 2000.0 mV | Temperature input | 4-pin aviation connector |
| mV resolution | 0.1 mV | Output | USB (PC or printer) |
| mV accuracy | ±0.3 mV or ±0.1 % FS | Auto power-off | 300 / 600 / 1200 / 1800 / 3600 s or off |
| Temperature range | −5 to 110 °C / 23 to 230 °F | Power supply | Rechargeable Li battery; adapter 100–240 V AC / 5 V DC |
| Temperature resolution | 0.1 | Protection | IP65 |
| Temperature accuracy | ±0.2 °C | Dimensions | 80 × 255 × 35 mm |
| Temperature compensation | ATC / MTC | Weight | approx. 400 g |
| Reading modes | Auto (fast / medium / slow), Timed, Continuous |
Specification notes
Electrode selection: match the electrode to the sample matrix, pH range and temperature — see page 4.
Calibration: choose the buffer group that matches your laboratory procedure and reporting standard.
Field use: the rechargeable battery, IP65 housing and carrying case support portable measurement.
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🧪 Electrodes and Accessories
PRO4153
3-in-1 pH composite electrode E-301-QC
pH + reference + temperature in one body; Ag/AgCl, 0–14 pH, BNC (Q9) and 4-pin connector.
Standard delivery
PRO6122
pH buffer set 4.01 / 7.00 / 10.01
Standard pH buffer solutions, 50 mL each, for 3-point calibration.
Standard delivery
—
Carrying case
Protective case for the meter, electrode and buffers in field use.
Standard delivery
PRO6137
pH electrode E-201-Z, spear tip
Piercing tip for semi-solid samples; Ag/AgCl, Φ12×120 mm, BNC (Q9) — connects directly.
Optional
PRO6144
pH electrode, blade spear (knife)
Knife-shaped POM / 316 stainless steel body for cheese, meat and fruit; S7 head, connected by cable.
Optional
PRO6138
pH electrode E-201-P, flat surface
Flat sensing membrane for surface pH on paper, leather, agar and skin; BNC (Q9) — connects directly.
Optional
PRO6146
pH electrode, slender
Thin Φ6×100 mm shaft for small vessels and test tubes; S7 head, connected by cable.
Optional
PRO6147
pH electrode, long
Long Φ12×260 mm shaft for deep containers and bottles; S7 head, connected by cable.
OptionalMore electrodes and accessories
| SKU | Item | Use | Status |
|---|---|---|---|
| PRO6995 | 3-in-1 pH electrode, Premium Longlife | Demanding daily lab use | Optional |
| PRO6996 | 3-in-1 pH electrode for ultrapure water | Ultrapure / low ionic strength water | Optional |
| PRO6997 | 3-in-1 pH electrode, high temperature | Hot samples up to 115 °C | Optional |
| PRO6126 | 3 M KCl electrolyte, 250 mL | Electrode maintenance | Optional |
| PRO6998 | Thermal printer 771000 | Documentation / GLP | Optional |
The standard 3-in-1 electrode E-301-QC (PRO4153) connects to the BNC (Q9) and 4-pin inputs and measures pH and temperature together. BNC electrodes connect directly; S7-head electrodes connect by cable. Special electrodes are selected by sample — ask us for the full electrode range. Standard delivery is confirmed in the quotation.
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🖼️ Visuals, Configuration Guidance and Support
Ordering information
| Item | Value |
|---|---|
| Model | VIKING-PH310F |
| SKU | PRO3567 |
| Instrument type | Portable pH / mV / temperature meter |
| Standard electrode | E-301-QC 3-in-1 (PRO4153) |
| Calibration standards | pH 4.01 / 7.00 / 10.01, 50 mL |
| Power | Li battery + 5 V DC adapter |
| Protection | IP65 |
Configuration checklist
Sample type: water, wastewater, ultrapure water, hot or viscous samples.
Electrode: standard, Premium Longlife, ultrapure water or high temperature.
Calibration: number of points and buffer group (NIST, DIN, GB, USA).
Documentation: GLP records, USB export or thermal printer.
Use: field, laboratory or both — carrying case included.
Manufacturer and support
COLO Lab Experts
Polje ob Sotli 4, SI-3255, Slovenia
Selection guidance: VIKING-PH310F is selected according to sample type, pH and temperature range, electrode type and documentation needs. COLO.Science helps you choose the electrode and calibration set.
Quick contact
COLO.Science · pH meter configuration support
Need help choosing the right electrode or calibration set?
Tell us the sample type, pH and temperature range and how you document results. COLO.Science will confirm the electrode, buffers and VIKING-PH310F configuration for your workflow.
Ask us:
Price and current discount, delivery time, electrode selection for your sample, calibration standards, installation and operator training, spare electrodes and accessories — write to sales@colo.si or call us.
Price and current discount, delivery time, electrode selection for your sample, calibration standards, installation and operator training, spare electrodes and accessories — write to sales@colo.si or call us.
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