Viking ISE300 — pH/Ion Meter · 7.0″ Touchscreen
OVERVIEW
🧪 Viking ISE300 pH/Ion Meter is a professional benchtop analyzer for high-accuracy measurement of pH, ion-selective electrodes (ISE), oxidation–reduction potential (ORP), mV and temperature. Built for laboratories, water utilities and research institutions, the ISE300 combines multi-parameter versatility with an intuitive touchscreen interface and GLP-compliant data handling.
With a high-contrast 7.0″ display for easy navigation and real-time data, the Viking ISE300 supports 1–6 point ISE calibration using methods such as direct reading, standard/sample addition and Gran plot. Multiple ISE units are supported (µg/L, mg/L, g/L, mmol/L, pX). Smart system tools simplify daily work: user/electrode/method/data management, audit trails and calibration reminders.
For applications from fluoride analysis and ammonium testing to routine pH stability checks, the Viking ISE300 delivers outstanding accuracy and usability across drinking-water, wastewater and industrial labs. For related water analytics, see our Water Quality category on COLO.Science. Learn more about oxygen measurement fundamentals in our article Understanding Dissolved Oxygen – The Key to Water Quality.
Viking ISE300 pH/Ion Meter with 7.0″ touchscreen, 1–6 point ISE calibration, GLP data management, and barometric/salinity compensation for optional DO module. Combines high precision (±0.002 pH), 1000 data sets per parameter and flexible connectivity (USB/RS‑232) for demanding water-quality applications.COLO.Science · Practical and robust equipment for everyday laboratory workflows.
COLO.SCIENCE KNOWLEDGE
Explore COLO.Science articles on pH theory, ion-selective electrode techniques, ORP measurement and good laboratory practice in water quality testing and routine electrochemistry.
Product Overview
Viking ISE300 pH/Ion Meter is a professional benchtop analyzer designed for laboratories that need reliable, high-accuracy measurement of pH, ion-selective electrodes (ISE), ORP, mV and temperature. The 7.0″ touchscreen with intelligent operating system simplifies user, calibration, method and data management – all in a robust IP54 housing.
Configuration notice — delivery depends on selected options
pH/ISE meters may be delivered in different configurations depending on the application and selected accessories (electrodes, DO module, etc.). The official PDF technical specification defines the exact configuration, included components and available options for each model/variant. Content shown on this website is provided for general informational purposes only and may not represent the final delivered configuration. Specifications may change without notice.
Key Features
1–6 point ISE calibration
Multi-unit ISE support
GLP compliance
USB & RS-232
Barometric & salinity comp.
1000 data sets/param.
Electrode diagnostics
IP54 protection
Measurement
High-Precision pH, ISE & ORP Measurement with Advanced Software
Intelligent Operating System
User management, calibration management, method management and data management for full traceability.
Multi-Mode Reading
Auto-read (Fast/Medium/Slow), timed-read and continuous-read modes with status prompts (Reading/Stable/Locked).
Electrode Diagnostics
Automatic slope & offset display, calibration reminder and slope limit alert for reliable measurements.
pH Measurement
- Range: -2.000 to 20.000 pH
- Resolution: 0.1 / 0.01 / 0.001 pH
- Accuracy: ±0.002 pH
- Calibration: 1–6 points with NIST/DIN/GB buffers
- Custom buffer group support
- Electrode slope & offset display
ISE / ORP / mV Measurement
- ISE range: 1.00E-9 to 9.99E9 (4 significant digits, ±0.3%)
- ORP/mV range: -2000.00 to 2000.00 mV
- Resolution: 0.1 / 0.01 mV, Accuracy: ±0.03% FS
- pX range: -2.000 to 20.000 pX (±0.002 pX)
- ISE units: µg/L, mg/L, g/L, mmol/L, pX
- Barometric & manual salinity compensation (DO module)
Temperature & Data
- Temp range: -5 to 130 °C (0.1°C res., ±0.1°C acc.)
- ATC / MTC compensation
- Data storage: 1000 groups per parameter (GLP)
- Data analysis: review, compare, recalc
- USB & RS-232 connectivity
Technical Specifications (Viking ISE300)
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Model | Viking ISE300 (SKU: PRO4751) | pH range | -2.000 to 20.000 pH |
| pH resolution | 0.1 / 0.01 / 0.001 pH | pH accuracy | ±0.002 pH |
| ISE range | 1.00E-9 to 9.99E9 | ISE accuracy | ±0.3% |
| ORP/mV range | -2000.00 to 2000.00 mV | ORP/mV accuracy | ±0.03% FS |
| pX range | -2.000 to 20.000 pX | pX accuracy | ±0.002 pX |
| Temperature range | -5 to 130 °C | Temperature accuracy | ±0.1 °C |
| Calibration points | 1–6 (ISE, pH) | Data storage | 1000 groups per parameter |
| Display | 7.0″ color touchscreen | Connectivity | USB, RS-232 |
| Protection class | IP54 | Power | AC adapter, 100-240V / DC 24V output |
| Dimensions | 280 × 280 × 130 mm | Weight | 2500 g (5.5 lb) |
Note: For the complete specification table, please refer to the Viking ISE300 catalog (PDF).
Standard Delivery
- Viking ISE300 main unit (SKU: PRO4751)
- pH / ISE measurement module
- Electrode holder and power adapter
- Starter set of calibration solutions
- USB cable for PC / printer connection
- Multilingual user manual and quick-start guide
- Access to COLO.Science articles and application notes for water-quality measurements
Exact kit contents may vary by region; please refer to the current catalog and quotation for final configuration.
VIKING Series — Model Comparison
Compare COLO benchtop pH/ISE meters by display, calibration points, data storage and key features.
| Parameter | VIKING-PH200 | VIKING-PH500 | Viking ISE300 | VIKING-PHPRO |
|---|---|---|---|---|
| Display | 6.0″ LCD | 6.5″ color TFT | 7.0″ color touchscreen | 7.0″ color touchscreen |
| Calibration points | 1–3 pH | 1–5 pH | 1–6 pH & ISE | 1–6 pH |
| pH accuracy | ±0.01 pH | ±0.002 pH | ±0.002 pH | ±0.002 pH |
| Data storage | 50 sets | 500 sets | 1000 sets/param | 1000 sets/param |
| Parameters | pH, mV, temp | pH, ORP, temp | pH, ISE, ORP, mV, temp | pH, ORP, temp |
| Connectivity | — | USB, RS-232 | USB, RS-232 | USB, RS-232 |
Viking ISE300 — Benchtop pH / Ion Meter
A versatile, high‑performance pH/ISE meter with 7.0″ color touchscreen, 1–6 point ISE calibration, GLP data logging and IP54 protection — supported by COLO.Science.
COLO.Science · Practical and robust equipment for everyday laboratory workflows.
