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Liquid Analysis
Portable pH Meter-Liquid Analysis Instruments
In industrial environments, inaccurate pH readings can directly impact product quality, regulatory compliance, and equipment safety. Laboratory-grade instruments are often unsuitable for field conditions, while low-end handheld meters lack long-term stability and measurement repeatability.
The Instrava Portable pH Meter is engineered for industrial field verification, process troubleshooting, and on-site water quality control. Designed with high-stability signal processing and industrial-grade electrode compatibility, it provides reliable, repeatable pH measurement in demanding environments where accuracy and durability are essential.
This device is not positioned as a consumer tester — it is a field instrument for professional use in utilities, process industries, and environmental monitoring.
Liquid Level Switch Description
Portable pH Meter Typical Application Scenarios
The portable pH meter is suitable for:
Industrial water treatment plants
Cooling tower water monitoring
Wastewater discharge compliance testing
Boiler feedwater inspection
Chemical process verification
Food & beverage process quality control
Environmental field sampling
Laboratory cross-check and calibration verification
It serves both on-site verification tool and temporary monitoring instrument in commissioning or maintenance phases.
Portable pH Meter Engineering Advantages
Industrial Measurement Stability
High-input impedance measurement circuit ensures stable signal acquisition and minimizes drift during field operation.
High-Accuracy Electrochemical Detection
Compatible with precision pH electrodes to deliver reliable readings suitable for regulatory or process-critical applications.
Temperature Compensation
Automatic temperature compensation improves measurement accuracy across varying field conditions.
Portable but Process-Oriented
Compact and lightweight for field work, yet built to withstand industrial site usage.
Digital Display & User Interface
Clear digital display ensures quick data interpretation during inspections or troubleshooting.
Low Power Consumption
Optimized power management for extended field operation.
Liquid Level Switch Parameter
Portable pH Meter Technical Specifications
| Parameter | Specification |
|---|---|
| Measuring Range – pH | -2.00 … 16.00 |
| Measuring Range – mV | -1999 … 1999 mV |
| Measuring Range – Temperature | -5 ℃ … 105 ℃ |
| Resolution – pH | 0.01 pH |
| Resolution – mV | 1 mV |
| Resolution – Temperature | 0.1 ℃ |
| Electronic Unit Measurement Error – pH | ±0.01 pH |
| Electronic Unit Measurement Error – mV | ±1 mV |
| Electronic Unit Measurement Error – Temperature | ±0.3 ℃ |
| pH Calibration | 1-point, 2-point, or 3-point |
| Isoelectric Point | pH 7.00 |
| Buffer Solution | 8 groups |
| Power Supply | DC 6V / 20 mA; 4 × AA/LR6 1.5V or NiMH 1.2V rechargeable |
| Size / Weight | 230 × 100 × 35 mm / 0.4 kg |
| Display | LCD |
| pH Input | BNC, resistance > 10¹² Ω |
| Temperature Input | RCA (Cinch), NTC 30kΩ |
| Data Storage | Calibration data; 198 groups measurement data (99 groups for pH, 99 groups for mV) |
| Working Condition – Temperature | 5 … 40 ℃ |
| Working Condition – Relative Humidity | 5% … 80% (without condensation) |
| Installation Grade | II |
| Pollution Grade | 2 |
| Altitude | ≤ 2000 m |
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.
The meter measures pH from -2.00 to 16.00, mV from -1999 to 1999, and temperature from -5 °C to 105 °C, suitable for most industrial liquids and process monitoring.
Electronic measurement errors are ±0.01 pH, ±1 mV, and ±0.3 °C for temperature, ensuring precise field and process measurements.
Yes. It supports 1-point, 2-point, or 3-point calibration using 8 standard buffer solutions for reliable measurement verification.
Yes. The instrument can store up to 198 groups of data, including 99 groups each for pH and mV, along with calibration history for traceability.
It accepts standard industrial BNC pH electrodes with high input resistance (>10¹² Ω) and NTC 30kΩ temperature probes for flexible application.
Yes. It operates in 5–40 °C, 5–80% relative humidity, with a rugged LCD display and compact, lightweight design for on-site industrial use.
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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