Benchtop pH Meter
Benchtop pH meter with automatic temperature compensation, 450-group data storage, and 1-3 point automatic calibration for laboratory pH and temperature measurement.
| Automation Level | semi-automated |
| pH | Range |
| Calibration Points | 1~3 points, automatically |
| ATC Range | -9.9~130.0°C/14.1~266.0℉ |
| mV(ORP probe optional) | Range |
| -9.9~130.0°C/14.1~266.0℉ | -10.0~135.0℃/14.0~275.0℉ |
The ConductScience Benchtop pH Meter provides precision pH and temperature measurement for laboratory applications requiring accurate solution monitoring. This digital instrument features automatic temperature compensation across a wide operating range and stores up to 450 measurement groups for data logging applications.
The meter supports 1-3 point automatic calibration and accommodates optional ORP probes for redox potential measurements. With 0.1°C temperature resolution and ±0.2°C accuracy, this benchtop unit delivers reliable performance for routine pH analysis and quality control protocols.
How It Works
The pH meter operates using a glass electrode system that generates a voltage potential proportional to hydrogen ion activity in solution. The glass membrane selectively responds to H+ ions, creating an electrochemical cell with a reference electrode to establish a stable measurement potential.
Automatic temperature compensation (ATC) adjusts pH readings based on the Nernst equation, accounting for temperature-dependent changes in electrode response. The built-in temperature sensor continuously monitors solution temperature from -9.9 to 130.0°C, applying real-time corrections to ensure accurate pH measurements across the operating range.
Calibration algorithms automatically recognize standard buffer solutions and adjust electrode slope and offset parameters. Data storage functionality captures measurement values with timestamps, enabling trend analysis and documentation for quality control applications.
Features & Benefits
Automation Level
- semi-automated
pH
- Range
Calibration Points
- 1~3 points, automatically
ATC Range
- -9.9~130.0°C/14.1~266.0℉
mV(ORP probe optional)
- Range
-9.9~130.0°C/14.1~266.0℉
- -10.0~135.0℃/14.0~275.0℉
Data Storage
- 450 groups
Power Requirements
- DC12V
External Size(W*D*H)
- 200*170*64mm
Package Size(W*D*H)
- 540*330*130mm
Brand
- ConductScience
Research Domain
- Analytical Chemistry
- Cell Biology
- Environmental Monitoring
- Food Science
- Microbiology
- Pharmaceutical QC
Accuracy
- ±0.2℃
Temperature Range
- Range
Weight
- 2.2kg
Weight
- 2.2 kg
Dimensions
- L: 6.4 mm
- W: 20.0 mm
- H: 17.0 mm
Comparison Guide
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Data Storage Capacity | 450 measurement groups with timestamps | Basic models often provide 50-100 data points or no storage | Enables comprehensive data logging for extended quality control monitoring and trend analysis |
| Temperature Compensation Range | -9.9 to 130.0°C automatic compensation | Entry-level units typically offer 0-60°C or require manual compensation | Supports measurements of heated samples and extreme temperature applications without manual corrections |
| Calibration Points | 1-3 point automatic calibration with buffer recognition | Basic meters often require manual 2-point calibration | Streamlines calibration process and reduces operator error in electrode standardization |
| Temperature Accuracy | ±0.2°C with 0.1°C resolution | Standard models typically offer ±0.5-1.0°C accuracy | Provides precise temperature measurement for accurate ATC calculations and thermal characterization |
| ORP Compatibility | Optional ORP probe support for redox measurements | Many pH-only meters lack redox potential capability | Expands measurement capabilities to include oxidation-reduction analysis in a single instrument |
| Form Factor | Compact benchtop design (200×170×64mm) | Varies by model - some are larger or handheld-only | Balances measurement stability with minimal laboratory footprint for routine analysis |
The ConductScience pH meter combines wide-range automatic temperature compensation, substantial data storage, and automatic calibration in a compact benchtop format. The 450-group data logging and extended temperature range support demanding laboratory applications while maintaining ease of use through automated functions.
Practical Tips
Perform calibration using fresh buffer solutions at room temperature for optimal electrode response.
Why: Degraded or temperature-mismatched buffers introduce systematic errors in pH measurements.
Store the pH electrode in pH 7 buffer or electrode storage solution when not in use.
Why: Proper hydration maintains the glass membrane integrity and prevents electrode drift.
Allow samples and standards to equilibrate to the same temperature before measurement when possible.
Why: Temperature equilibration reduces thermal gradients that can affect electrode response time and stability.
Record the temperature of each measurement along with pH values for complete documentation.
Why: Temperature data enables post-measurement validation and helps identify sample-specific thermal effects.
If readings appear sluggish, check electrode condition and perform calibration verification with known buffers.
Why: Aging electrodes develop slower response times and require more frequent calibration or replacement.
Rinse electrodes thoroughly between different sample types, especially when transitioning between acidic and basic solutions.
Why: Cross-contamination can alter subsequent measurements and potentially damage sensitive electrode membranes.
Verify calibration daily when performing critical measurements or when working with samples at temperature extremes.
Why: Frequent calibration verification ensures measurement accuracy is maintained during demanding applications.
Use the data storage function to maintain measurement records for quality control and validation purposes.
Why: Documented measurement history supports laboratory accreditation requirements and troubleshooting efforts.
Setup Guide
What’s in the Box
- Benchtop pH Meter
- pH Electrode (typical)
- Temperature Probe (typical)
- DC12V Power Adapter
- Electrode Stand (typical)
- Calibration Buffers (typical)
- User Manual
- Calibration Certificate (typical)
Warranty
ConductScience provides a standard 1-year manufacturer warranty covering defects in materials and workmanship. Technical support includes calibration guidance and troubleshooting assistance.
Compliance
What calibration buffers are recommended for routine use?
Standard pH 4.01, 7.00, and 10.01 buffers provide optimal calibration across the typical measurement range. The automatic calibration recognizes these standards and adjusts electrode parameters accordingly.
How does the automatic temperature compensation function?
The integrated ATC sensor continuously monitors solution temperature from -9.9 to 130.0°C and applies real-time corrections based on the Nernst equation to compensate for temperature-dependent electrode response changes.
What data output options are available?
The meter stores up to 450 measurement groups with timestamps. Consult product datasheet for specific data transfer protocols and export formats.
Can this meter accommodate different electrode types?
The unit supports standard pH electrodes and optional ORP probes for redox potential measurements. Electrode compatibility depends on connector type and measurement requirements.
What maintenance is required for optimal performance?
Regular electrode cleaning, proper storage in pH 7 buffer or storage solution, and periodic calibration verification ensure measurement accuracy. Replace electrodes when response becomes sluggish or calibration drift occurs.
How accurate are the temperature measurements?
Temperature accuracy is ±0.2°C with 0.1°C resolution across the -9.9 to 130.0°C operating range, providing precise thermal characterization for ATC calculations.
What is the measurement stability and response time?
Consult product datasheet for specific response time and stability specifications, which vary based on sample characteristics and electrode condition.
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