COLO.Science — Electrochemistry · pH/ion meters
VIKING-ISE400 Benchtop pH/Ion Meter
VIKING-ISE400 is a high-accuracy benchtop pH / ion meter (±0.002 pH / pX, ion ±0.3 %) with up to 7-point ion calibration, GLP memory, USB and RS-232. It combines a 7.0″ backlit LCD, pH −2.000 to 20.000 (±0.002 pH), ion concentration from 1.000e-9 to 9.999e+9 (±0.3 %), ion calibration in up to 7 points, a 500-result memory (GLP), USB and RS-232 connectivity and IP54 protection.
Overview
Applications
- Water and wastewater: fluoride, nitrate, ammonium and chloride in drinking and waste water.
- Food and agriculture: sodium, potassium, calcium and nitrate in food, soil extracts and fertilisers.
- Pharma and chemistry: ion content of raw materials, solutions and products.
- Education and research: pH, mV and ion methods on one benchtop instrument.
Why VIKING-ISE400
- Clear display: 7.0″ LCD with backlight with Reading / Stable / Locked prompts.
- Ion methods: Direct reading; linear or polyline calibration fit.
- Flexible units: mol/L, mmol/L, g/L, mg/L, µg/L, ppm, ppb.
- Data traceability: 500 results per parameter with date, time and GLP records.
Technical specifications
| Model | VIKING-ISE400 |
| SKU | PRO4763 |
| pH range | −2.000 to 20.000 pH |
| pH resolution | 0.001 pH |
| pH accuracy | ±0.002 pH |
| pH calibration | up to 5 points |
| pH buffer recognition | NIST, DIN, GB, USA, MERCK, GOST |
| mV range | −2000.00 to 2000.00 mV |
| mV accuracy | ±0.1 mV or ±0.03 % |
| pX range | −2.000 to 20.000 pX |
| pX accuracy | ±0.002 pX |
| pX calibration | up to 7 points |
| Ion range | 1.000e-9 to 9.999e+9 |
| Ion units | mol/L, mmol/L, g/L, mg/L, µg/L, ppm, ppb |
| Ion resolution | up to 4 significant digits |
| Ion accuracy | ±0.3 % |
| Ion calibration | up to 7 points |
| Ion methods | Direct reading; linear or polyline calibration fit |
| Temperature range | −10 to 135 °C / 14 to 275 °F |
| Temperature accuracy | ±0.1 °C |
| Temperature compensation | ATC / MTC |
| Reading modes | AutoRead (fast / medium / slow), timed, continuous |
| Reading prompts | Reading, Stable, Locked |
| Display | 7.0″ LCD with backlight |
| Data memory | 500 results per parameter, GLP |
| Inputs | BNC (pH / ISE), banana (reference), 4-pin (temperature) |
| Outputs | USB (PC), RS-232 (printer) |
| Auto power-off | 1–60 min or off |
| Power supply | Power adapter, DC 20 V |
| Protection | IP54 |
| Dimensions | 242 × 195 × 68 mm |
| Weight | approx. 900 g |
COLO.SCIENCE VIDEO
VIKING-ISE400 operation video
Installation, settings, pH and ion calibration and measurement — step by step.
VIKING-ISE400 operation video (10:15). Open the video in a new window
ELECTRODES AND ACCESSORIES
Electrodes and accessories for the VIKING-ISE400 benchtop pH/ion meter
The VIKING-ISE400 is delivered without electrodes: combined ion-selective electrodes, the 3-in-1 pH electrode and the temperature probe are chosen per ion and connect to the BNC and 4-pin inputs. Standards and ISA solutions complete the set for each ion.
JB-10
Magnetic stirrer JB-10
Stirrer with stand rod for homogeneous samples during ion measurement and addition methods.
Standard delivery
COLO-5
Electrode stand COLO-5
Flexible electrode arm with 360° rotation; holds the electrode above the beaker.
Standard delivery
PRO6237
Fluoride combined ISE PF-202-C
Fluoride (F⁻) ion-selective electrode with built-in reference, BNC (Q9).
Optional
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.
Optional
PRO6166
Temperature probe T-818-Q
316 stainless steel, Φ4×120 mm, −5…105 °C; 4-pin connector for automatic temperature compensation.
Optional
PRO6240
Fluoride ISE PF-2-01
Fluoride (F⁻) ion-selective electrode, 5–45 °C; used with a separate reference electrode.
Optional
PRO6175
Reference electrode 217-01 (double junction)
Saturated double-junction calomel reference electrode, U-shape terminal.
Optional
PRO6998
Thermal printer 771000
Prints measurement and calibration records (GLP).
Optional
More electrodes and accessories
- PRO6242 — Chloride (Cl⁻) ISE
- PRO6249 — Nitrate (NO₃⁻) ISE
- PRO7128 — Fluoride ISE standard 0.1 mol/L, 250 mL
Tell us your sample and we will confirm the right electrode for your VIKING-ISE400 benchtop pH/ion meter. Full electrode range: Electrochemistry catalogue →
Selection guidance
VIKING-ISE400 is chosen where ±0.002 pH / pX and up to 7-point ion calibration are needed, e.g. for low fluoride or sodium levels, with GLP records and printer output. COLO.Science helps you choose electrodes, standards and ISA solutions.
Configuration checklist
- Ions: which ions and at what concentration (mg/L, ppm, mol/L).
- Sample matrix: interferences decide between direct reading and addition methods.
- Electrodes: combined ISE or half-cell with reference, plus pH / temperature.
- Documentation: GLP records, USB export or printer.
- Need more?: see VIKING-ISE500.
Sales and support for international customers
COLO Lab ExpertsPolje ob Sotli 4, SI-3255 Buče, Slovenia
Phone: +386 70 713 437 · Email: sales@colo.si · Web: colo.si
We supply laboratories across Europe directly and through partners. B2B prices are quoted net, excluding VAT.












