VIKING-M500A — Benchtop Multi-Parameter Analyzer (pH / EC / ISE / DO / Temp.)
OVERVIEW
VIKING-M500A is a benchtop multi-parameter analyzer designed for high-accuracy
measurement of pH, conductivity (EC), ion-selective electrodes (ISE) and
dissolved oxygen (DO), with integrated temperature compensation. The 7.0″ colour
touchscreen, intuitive operating system and GLP-compliant data memory (up to 1000 data sets)
make it a central instrument for routine and advanced electrochemical analysis in modern laboratories.
The instrument supports multiple read modes, 1–6 point calibration, flexible buffer groups
and automatic or manual temperature compensation (ATC/MTC). Thanks to its USB and RS-232 interfaces,
VIKING-M500A integrates smoothly into laboratory workflows, data archiving and
reporting systems, making it a robust workhorse for water quality and general electrochemistry.
COLO.SCIENCE KNOWLEDGE
Understand electrochemical measurements in real samples
Explore COLO.Science articles on pH, conductivity, ion-selective electrodes and dissolved oxygen
for water quality testing, environmental monitoring and general laboratory applications.
TYPICAL APPLICATIONS
- Water and wastewater testing laboratories (drinking, surface, process and industrial water)
- Quality control in pharmaceutical, food & beverage and chemical industries
- Academic and research laboratories in environmental, life and material sciences
- Industrial QC, method development and method transfer between laboratories
MODEL & PARAMETERS
| Model | Measured parameters | Display |
|---|---|---|
| VIKING-M500A | pH, EC, ISE, DO, temperature (mV, ORP, pX, resistivity, TDS, salinity, DO % saturation) | 7.0″ colour touchscreen LCD |
TECHNICAL SPECIFICATIONS (EXCERPT)
Measurement ranges & performance
| pH | Range: −2.000 to 20.000 pH; Resolution: 0.1 / 0.01 / 0.001 pH; Accuracy: ±0.002 pH; up to 6-point calibration (DIN, NIST, USA, MERK, JIS, GB; custom buffer groups supported). |
| ISE | Range: 1.000e−9 to 9.999e+9; Units: mol/L, mmol/L, g/L, mg/L, μg/L, ppm, ppb; resolution up to 4 significant digits; accuracy: ±0.3%; up to 6-point calibration. |
| mV / ORP | Range: −2000.00 to 2000.00 mV; Resolution: 0.1 / 0.01 mV; Accuracy: ±0.1 mV or ±0.03% of reading; EH ORP mode; single-point ORP calibration (relative mV). |
| Conductivity / TDS / salinity | Conductivity range: 0.000 μS/cm to 2000 mS/cm; Accuracy: ±0.5% FS; up to 5-point calibration; reference temperature 5 / 10 / 15 / 18 / 20 / 25 °C; TDS up to 1000 ppt; salinity 0.0–80.0 ppt (%NaCl). |
| Dissolved oxygen | Polarographic DO; 0.00–99.99 ppm; 0.0–600% saturation; calibration in air-saturated water or zero point; automatic barometric pressure compensation; manual salinity correction. |
| Temperature | Range: −10 to 135 °C (14–275 °F); Resolution: 0.1; Accuracy: ±0.1 °C; ATC / MTC; read modes: Auto (fast / medium / slow), timed, continuous. |
| Memory & GLP | Data storage: up to 1000 groups; GLP functions and data log management; date and time stamped records for full traceability. |
For the complete list of parameters and performance data, see the
VIKING-M500A catalogue (PDF).
STANDARD DELIVERY
- 3-in-1 composite pH electrode PRO4153
- Conductivity electrode PRO6154
- Polarographic DO electrode PRO6163
- NIST pH buffer solutions 4.01 / 7.00 / 10.01 (50 mL each)
- EC standard solution 1413 μS/cm (50 mL)
- Electrode stand EHO-6; touchscreen stylus
Exact set contents may vary; please check the current catalogue and quotation for the final configuration.






