How to Choose the Right Liquid Analysis Solution for Industrial Applications
Selecting the right liquid analysis solution is critical for industrial process efficiency, product quality, and regulatory compliance. With multiple parameters...
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Liquid Analysis
Portable Water Digital EC Conductivity Meter for Laboratory
Engineered for Laboratory Accuracy and Field Mobility
Instrava Portable Digital EC Conductivity Meter integrates laboratory-grade electrochemical measurement accuracy with rugged IP65 field protection.
Designed for precise conductivity, resistivity, TDS, salinity, and temperature analysis, the instrument supports 0.000 μS/cm to 500 mS/cm ultra-wide range detection with 0.001 μS/cm minimum resolution.
With GLP-compliant data management, 1–3 point automatic calibration, selectable temperature compensation modes, and configurable cell constants, the system delivers reliable results in both controlled laboratory environments and demanding field applications.
This platform is engineered for professionals requiring precision, flexibility, and outdoor durability.
Liquid Analysis Description
Portable Water Digital EC Conductivity Meter Applicable Scenarios
Instrava Portable EC Meter is suitable for:
Laboratory water quality analysis
Ultrapure water monitoring systems
Environmental field sampling
Industrial process water control
Boiler and cooling system monitoring
Aquaculture and marine salinity testing
Wastewater treatment plants
Its IP65 structure and lithium battery system enable reliable outdoor deployment.
Portable Water Digital EC Conductivity Meter Engineering Advantages
Multi-Parameter Measurement Capability
Supports:
Conductivity (EC)
Resistivity
Total Dissolved Solids (TDS)
Salinity
Temperature
Single-platform measurement reduces equipment redundancy in laboratory and field operations.
Ultra-Wide Conductivity Range
0.000 μS/cm to 500 mS/cm
Resolution as low as 0.001 μS/cm
Accuracy: ±1.0% FS
Reference temperature selectable: 20°C / 25°C
Covers ultrapure water to high-salinity industrial solutions.
Advanced Temperature Compensation System
ATC (Automatic Temperature Compensation)
MTC (Manual Temperature Compensation)
Compensation types: None / Linear / Pure Water
Pure water compensation improves accuracy in low conductivity applications.
Flexible Calibration Architecture
1–3 point calibration
Automatic standard recognition: 84 μS/cm, 1413 μS/cm, 12.88 mS/cm
Adjustable cell constant
Configurable temperature coefficient
Adjustable TDS factor
Ensures measurement consistency across diverse industrial and laboratory conditions.
Intelligent Multi-Reading Modes
Auto Read (Fast / Medium / Slow)
Timed Read
Continuous Read
Auto-Hold with endpoint lock
Reading prompts include: Reading, Stable, Locked.
Optimizes measurement workflow efficiency.
GLP-Compliant Data Management
500 data sets per parameter
Date and time tracking
USB data output
PC and printer support
Supports traceable and structured laboratory documentation.
Rugged Field-Ready Construction
IP65 waterproof protection
5-pin aviation conductivity connector
Rechargeable lithium battery
Adjustable auto shutdown (300–3600 sec)
Silicone protective case and wristband
Designed for laboratory precision and outdoor durability.
Liquid Analysis Parameter
Portable Water Digital EC Conductivity Meter Technical Specifications
Conductivity (EC)
| Parameter | Specification |
|---|---|
| Range | 0.000 μS/cm – 500 mS/cm |
| Resolution | 0.001 μS/cm (minimum) |
| Accuracy | ±1.0% FS |
| Calibration | Up to 3 points |
| Standard Recognition | 84 μS/cm, 1413 μS/cm, 12.88 mS/cm |
Resistivity
| Parameter | Specification |
|---|---|
| Range | 5.00 Ω·cm – 20.00 MΩ·cm |
| Resolution | 0.01 Ω·cm |
| Accuracy | ±1.0% FS |
TDS
| Parameter | Specification |
|---|---|
| Range | 0.00 ppm – 300 ppt |
| Resolution | 0.01 ppm (minimum) |
| Accuracy | ±1.0% FS |
Salinity
| Parameter | Specification |
|---|---|
| Range | 0.0 – 80.0 ppt |
| Resolution | 0.1 ppt |
| Accuracy | ±2 ppt |
Temperature
| Parameter | Specification |
|---|---|
| Range | -5 – 110°C |
| Unit | °C / °F |
| Resolution | 0.1 |
| Accuracy | ±0.2°C |
System Parameters
| Parameter | Specification |
|---|---|
| Display | 3.5-inch LCD |
| Data Storage | 500 sets per parameter |
| Communication | USB |
| Power | Rechargeable lithium battery / AC adapter |
| Protection Rating | IP65 |
| Dimensions | 80 × 225 × 35 mm |
| Weight | 400 g |
Included Accessories
DJS-1VTC EC Electrode
1413 μS/cm EC Standard Solution (50ml)
Electrode Holder
Silicone Rubber Protective Case
Wristbands
Carrying Case
Ready for immediate laboratory or field deployment.
Designed for Professional Water Quality Control
Instrava Portable Digital EC Conductivity Meter delivers laboratory precision with field durability.
With configurable compensation modes, multi-parameter capability, and structured GLP data management, it supports professionals requiring reliable conductivity analysis across diverse industrial and environmental conditions.
Instrava — Engineered for Precision Mobility.
Instrava OEM/ODM
Reliable Instruments. Solutions That Fit Your Application.
Instrava is focused on delivering reliable industrial solutions through carefully curated products, application-driven optimization, and flexible customization. We select proven instruments from trusted manufacturers to ensure consistent quality, optimize solutions based on real working conditions to solve practical challenges, and provide tailored configurations to meet specific application needs.
By combining selection expertise with application understanding, Instrava helps customers reduce risk, improve efficiency, and achieve dependable results in complex industrial environments.
What is the principle of pure water temperature compensation?
In ultra-low conductivity water, ionic mobility changes non-linearly with temperature.
Standard linear compensation may introduce deviation under 10 μS/cm conditions.
Pure water compensation applies a temperature-dependent algorithm optimized for low ionic concentration solutions, improving accuracy in ultrapure water systems such as RO/DI and pharmaceutical purified water loops.
How should the TDS conversion factor be selected?
TDS is calculated from conductivity using a multiplication factor (typically 0.40–0.70).
The correct factor depends on ionic composition:
NaCl-dominant solutions: ~0.5
Natural water mixtures: ~0.65
Industrial process water: application-specific
Incorrect TDS factor selection leads to systematic deviation. The adjustable TDS coefficient ensures application-specific calibration alignment.
How is the cell constant matched to measurement range?
The cell constant (K) determines sensitivity range:
K=0.1 → low conductivity / ultrapure water
K=1.0 → general water testing
K=10 → high conductivity / brine solutions
Proper matching ensures optimal resolution and minimizes polarization effects. Adjustable cell constant configuration improves cross-application flexibility.
What causes measurement error in high-salinity environments?
High-salinity solutions (>100 mS/cm) may introduce:
Electrode polarization
Temperature gradient deviation
Non-linear conductivity behavior
Incomplete temperature equilibration
Using appropriate cell constants and allowing sufficient stabilization time reduces high-range deviation.
Why is high resolution (0.001 μS/cm) critical for ultrapure water systems?
Ultrapure water typically measures below 2 μS/cm.
At such low levels, small contamination events produce minimal conductivity change.
High resolution enables early detection of ion breakthrough in RO/EDI systems, protecting downstream industrial processes.
How does IP65 protection improve industrial reliability?
IP65 rating ensures:
Dust-tight enclosure
Protection against low-pressure water jets
Resistance to outdoor humidity and splashing
This enables stable performance in wastewater plants, cooling systems, field sampling, and industrial environments without compromising measurement integrity.
Why Choose Instrava
Built on Consistency, Not Claims
Focused on Industrial Applications
We specialize in industrial analysis and detection, with a clear understanding of real-world operating environments and requirements.
Strict Product Selection Criteria
Every instrument is evaluated based on performance, stability, and application suitability—not just specifications or pricing.
Reliable Supply & Quality Consistency
We work with trusted manufacturers to ensure stable supply, consistent quality, and dependable delivery.
Practical, Experience-Based Support
Our recommendations are grounded in application understanding, helping customers avoid common issues and achieve reliable results.
Instrava is built to reduce uncertainty—so every decision you make is clearer, safer, and more reliable.
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