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Liquid Analysis
Benchtop pH Meter
Engineered for Laboratory-Grade Accuracy and Stability
Instrava Benchtop pH Meter is designed for precise and stable pH measurement in laboratory and professional analytical environments.
With ±0.01 pH accuracy, automatic two-point calibration, and integrated temperature compensation, the instrument delivers consistent and repeatable analytical performance across a wide range of water-based solutions.
Featuring a 4-digit LCD display with stability indicator and simultaneous pH/temperature readout, the system ensures accurate interpretation of electrochemical measurement results.
For laboratories, research institutions, environmental monitoring departments, and industrial quality control facilities, Instrava provides dependable bench-scale analytical precision.
Liquid Level Switch Description
Benchtop pH Meter Applicable Scenarios
Instrava Benchtop pH Meter is suitable for:
Laboratory chemical analysis
University and research institute experiments
Environmental monitoring laboratories
Medical and pharmaceutical testing
Water treatment quality control
Mechanical and industrial process laboratories
Its stable measurement performance and wide range make it ideal for controlled analytical environments.
Benchtop pH Meter Engineering Advantages
High-Precision Measurement Performance
pH measurement range: 0.00 – 14.00 pH
Resolution: 0.01 pH
Accuracy: ±0.01 pH
Ensures laboratory-grade accuracy for routine and advanced analytical testing.
Automatic Two-Point Calibration
Automatic buffer recognition
Two-point calibration for improved linearity
Optional manual calibration method
Allows flexible calibration strategies for different solution types and measurement requirements.
Automatic Temperature Compensation (ATC)
Temperature range: 0 – 100°C
ATC range: 0 – 50°C
Simultaneous pH and temperature display
All pH readings are automatically temperature compensated to enhance measurement reliability and consistency.
Stability Indicator & Clear Display
4-digit LCD display
Unique stability indicator
Simultaneous display of pH and temperature
Ensures operators record values only after signal stabilization, reducing reading uncertainty.
Reliable and Stable Instrument Structure
Combination electrode with high sensitivity
Fast response time
Excellent repeatability
Stable internal circuit design
Engineered for consistent laboratory operation and repeatable analytical performance.
Global Power Compatibility
Powered by universal AC adapter
Suitable for international voltage standards
Supports laboratory deployment worldwide.
Liquid Level Switch Parameter
Benchtop pH Meter Technical Specifications
Measurement Performance
| Parameter | Specification |
|---|---|
| pH Range | 0.00 – 14.00 pH |
| pH Resolution | 0.01 pH |
| pH Accuracy | ±0.01 pH |
| Temperature Range | 0 – 100°C |
| Temperature Resolution | 0.1°C |
| Temperature Accuracy | ±0.5°C |
| Automatic Temperature Compensation | 0 – 50°C |
Calibration & Display
| Parameter | Specification |
|---|---|
| Calibration Method | Automatic two-point calibration |
| Calibration Mode | Automatic / Manual |
| Display | 4-digit LCD |
| Stability Indicator | Yes |
| Simultaneous pH & Temp Display | Yes |
Mechanical & Environmental
| Parameter | Specification |
|---|---|
| Operating Environment | 0 – 50°C |
| Relative Humidity | ≤ 95% RH |
| Dimensions | 240 × 185 × 100 mm |
| Weight | 660 g |
| Power Supply | Universal power adapter |
Designed for Accurate Laboratory Analysis
Instrava Benchtop pH Meter combines measurement precision, automatic temperature compensation, and calibration flexibility to deliver dependable analytical performance in laboratory environments.
Whether used for environmental analysis, academic research, medical testing, or industrial quality verification, the system ensures stable readings and repeatable results.
Instrava — Engineered for Precision and Reliability in Laboratory Measurement.
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.
Buffer selection should match the expected sample range.
For neutral water samples, pH 7.00 and pH 4.00 or 10.00 buffers are commonly used. For alkaline or acidic samples, choose calibration points that bracket the expected measurement range.
Fresh, uncontaminated buffer solutions are critical to maintaining ±0.01 pH accuracy.
Two-point calibration establishes slope and offset of the electrode response curve.
By calibrating at two known pH values, the instrument compensates for electrode sensitivity variations and reference potential deviation.
This improves linearity across the measurement range and ensures analytical reliability.
Calibration linearity can be affected by:
Electrode aging or contamination
Temperature variation between buffers
Improper buffer storage
Incomplete electrode stabilization
Consistent laboratory conditions and proper electrode maintenance are essential for maintaining calibration integrity.
ATC compensates for electrode slope variation caused by temperature changes within the specified 0–50°C compensation range.
However, ATC does not correct chemical equilibrium changes in the sample itself.
Temperature mismatch between calibration buffers and sample solution may introduce additional deviation. For highest accuracy, calibration and measurement should be performed under similar temperature conditions.
The stability indicator monitors signal fluctuation before confirming the final reading.
It ensures the displayed value is recorded only after the electrode potential reaches equilibrium.
This reduces premature readings and enhances repeatability in laboratory analysis.
Calibration frequency depends on application sensitivity:
Daily calibration for high-precision laboratory research
Before each measurement session for critical analysis
After electrode replacement or cleaning
Regular calibration ensures traceable and compliant analytical performance.
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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