Thermal vs Vortex vs Differential Pressure: How to Choose the Right Flow Measurement Technology
Selecting a flow meter is rarely about accuracy alone. In industrial applications, the real challenges include: Variable flow rates Pressure...
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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 Level Switch 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 Level Switch 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
Instrava Engineering & Customization Support
At Instrava, our instruments are developed with a strong focus on real industrial applications. Each product is designed to operate as a reliable component within measurement, control, and automation systems, rather than as a standalone device.
Our engineering team supports customers during product selection by evaluating process conditions, operating environments, and system requirements, ensuring stable and long-term performance in actual use.
In addition to standard configurations, Instrava offers flexible customization options, including measurement range, materials, output signals, communication interfaces, and installation methods. All custom solutions are engineered to meet industrial standards and application-specific demands.
We also support OEM projects and system integration, providing consistent product design, technical documentation, and long-term supply to ensure smooth integration and reliable operation throughout the project lifecycle.
Related Product Recommendations
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.
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.
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.
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.
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.
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
By choosing Instrava, you gain a partner with a deep understanding of industrial applications and the expertise to meet today’s operational challenges.
Our role extends beyond products—we support your success through dependable solutions and long-term commitment.
Engineering-Driven Innovation
Innovation at Instrava is guided by real industrial requirements. We continuously refine our technologies to address evolving operational challenges, ensuring practical and reliable performance in demanding environments.
Application-Specific Customization
We provide engineering-level customization to match specific process conditions. From measurement range and materials to output signals and installation options, our solutions are configured to fit real applications.
Proven Quality and Reliability
Quality and reliability are fundamental to every Instrava product. Manufactured under strict quality control and thoroughly tested, our instruments deliver accurate, stable, and long-term performance.
Global Capability with Local Support
Instrava combines global engineering expertise with responsive local support, ensuring our partners benefit from internationally aligned technology and timely regional service.
Comprehensive Product Portfolio
Our broad portfolio of measurement and control instruments enables us to address a wide range of industrial needs, providing integrated solutions from a single, reliable source.
Partner-Oriented Engineering Support
We work closely with our partners from technical consultation to after-sales support. Our focus is on delivering solutions that create lasting value and support long-term operational success.
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