Order Code	Product Name
L-02-06-M01	High Precision Laboratory pH Meter for Mining and Hydrometallurgy Testing

High Precision Laboratory pH Meter for Mining and Hydrometallurgy Testing

Brief Introduction

This High Precision Laboratory pH Meter is an advanced analytical instrument designed for accurate pH, ORP, potential and temperature measurement in mining and hydrometallurgical laboratories. Equipped with a 7-inch HD color touch screen and multi-resolution measurement system, it supports adjustable pH and mV resolution for different mineral testing requirements.

Featuring automatic temperature compensation, multi-point electrode calibration and intelligent buffer solution identification, the instrument provides stable and repeatable measurement results for acidic ore slurries, leachate solutions, process wastewater and metallurgical reagents. With GLP and GMP data management functions, RS-232 and USB interfaces, IP54 protection grade and firmware upgrade capability, it supports standardized laboratory quality control and R&D measurement workflows.

Application Scope

This laboratory pH meter is suitable for mining laboratory workflows including mineral sample preparation, metallurgical testing, mineral analysis and hydrometallurgical process evaluation.

Mineral Sample Preparation

The instrument measures pH values of digested ore solutions, mineral suspensions and diluted reagent liquids during sample preparation procedures. Accurate pH monitoring helps maintain stable chemical conditions before elemental analysis and reduces testing deviation caused by unsuitable solution conditions.

Mineral Testing and Metallurgical Analysis

During metallurgical testing, the meter monitors pH, ORP and potential values in solution titration, blending and standard sample preparation processes. Adjustable resolution levels support routine quality control and detailed mineral research applications.

Hydrometallurgy Laboratory Applications

The pH meter functions as monitoring equipment for laboratory-scale leaching, solvent extraction, precipitation and electrolysis experiments. Real-time pH and ORP measurement supports evaluation of hydrometallurgical test conditions and solution processing performance.

Features

• HD Touch Screen Operation: The 7-inch HD color touch screen supports Chinese and English switching, providing clear data display and convenient parameter operation.

• Adjustable Measurement Resolution: Three-level pH and mV resolution settings adapt to different laboratory testing requirements from routine quality control to mineral research applications.

• Intelligent Temperature Compensation: Automatic temperature compensation helps reduce temperature-related measurement deviation during wet chemistry testing.

• Advanced Calibration System: Supports 1–6 point pH calibration, 1-point ORP calibration, electrode diagnosis and calibration reminders. The system automatically identifies six international buffer solution standards and allows custom solution configuration.

• Laboratory Data Management: GLP and GMP compatible data functions support storage of 1000 sets of data, log review, statistics and measurement traceability.

• Flexible Data Communication: RS-232 and USB interfaces support printer connection, PC data transmission, scanner matching and automatic sampler linkage for laboratory batch testing.

• Reliable Laboratory Protection: IP54 protection grade, automatic shutdown and power-off protection improve equipment safety and durability in laboratory environments.

• Complete Laboratory Accessories: Standard accessories include high-precision composite electrodes, independent electrode holder, dust cover and buffer solutions for convenient laboratory installation.

Specification

Parameter Item	Technical Index
Instrument Precision Level	0.001 level
Measurable Parameters	Potential value, pH, ORP, temperature
mV Measurement Range	-2000.00 ~ 2000.00 mV
mV Minimum Resolution	0.01 mV
mV Indication Error	±0.03% or ±0.1 mV
pH Measurement Range	-2.000 ~ 20.000 pH
pH Minimum Resolution	0.001 pH
pH Indication Error	±0.002 pH
Temperature Range	-10.0 ~ 135.0℃ / 14.0 ~ 275.0℉
Temperature Resolution	0.1℃ / 0.1℉
Temperature Indication Error	±0.1℃
Display	7-inch HD color touch screen
Language	Chinese / English switchable
Calibration Mode	1–6 points pH calibration, 1 point ORP calibration
Buffer Solution Identification	6 international standards + custom standards
Data Interfaces	RS-232, USB
Data Storage Capacity	1000 sets
Protection Level	IP54
Power Supply	AC 100~240V input, DC 24V output
Overall Dimension	220 × 195 × 68 mm
Net Weight	0.95 kg

Other Specification for Option

Custom electrode types, automatic sampler matching modules and professional data analysis software versions are available on request to support high-throughput batch testing and customized laboratory management requirements.

Why Choose FKN PANDA

Superior Testing Accuracy: FKN PANDA High Precision Laboratory pH Meter combines 0.001 pH resolution, multi-point calibration and automatic temperature compensation to provide reliable pH and ORP measurement data for mineral analysis and hydrometallurgical evaluation.

Operational Reliability: IP54 protection structure, power-off protection and electrode diagnosis functions support stable long-term operation in wet laboratory environments and help maintain consistent measurement performance.

Improved Laboratory Efficiency: Automatic buffer identification, intelligent reading functions and data storage capabilities reduce manual operation requirements and improve batch testing workflow efficiency.

Mining Workflow Compatibility: Multi-parameter measurement capability, GLP/GMP data traceability and flexible solution compatibility support ore preparation, metallurgical testing and hydrometallurgical laboratory procedures.

Cost-Effective Laboratory Investment: Expandable firmware capability and integrated pH, ORP, potential and temperature measurement functions help reduce equipment replacement requirements and simplify laboratory instrument management.

pH Meter – FAQ

Q1. How to select a pH meter for process solution monitoring in hydrometallurgical laboratory workflows?

Selecting a pH meter for mining laboratory applications requires consideration of solution chemistry, measurement environment, and testing objectives. In hydrometallurgical workflows, the instrument should match the requirements of processes such as leaching tests, flotation studies, reagent preparation, and solution monitoring. Key factors include electrode compatibility with acidic or alkaline solutions, measurement stability, calibration requirements, and data recording capability. For new laboratory setups, expansion projects, or equipment replacement, the pH meter should support reliable measurements throughout the workflow from mineral testing to metallurgical evaluation and process decision-making.

Q2. What factors should be considered when choosing a pH meter electrode for mining laboratory applications?

The electrode selection directly affects measurement reliability in mining and metallurgical testing environments. Factors such as solution composition, temperature range, suspended solids, ionic strength, and chemical exposure should be evaluated before selection. Acidic leaching solutions, alkaline process samples, and slurry-based mineral processing tests may require different electrode designs to maintain stable performance. Proper electrode selection helps reduce measurement drift, improve calibration consistency, and support repeatable results during ore testing, flotation evaluation, and hydrometallurgical research workflows.

Q3. How does pH electrode design affect measurement stability in mineral processing and slurry applications?

pH electrode design influences response stability when measuring complex mining samples such as mineral slurries, flotation feeds, and concentrated process solutions. Factors including junction structure, reference system design, and resistance to contamination can affect measurement consistency. In mineral processing laboratories, samples may contain suspended particles or dissolved chemicals that impact electrode performance over time. Choosing an electrode suitable for the specific sample characteristics helps laboratories maintain reliable pH monitoring during testing procedures and improves confidence in data used for metallurgical evaluation and process optimization.

Q4. How can pH meters improve testing accuracy and repeatability in metallurgical laboratories?

Accurate pH measurement is important for controlling chemical conditions in many metallurgical experiments, including leaching, flotation, and reagent evaluation. A suitable pH meter supports repeatable testing by providing stable measurements when combined with proper calibration procedures, appropriate electrodes, and controlled testing conditions. Regular calibration with suitable buffer solutions and correct electrode maintenance help minimize measurement variation. Within the mining laboratory workflow, reliable pH data contributes to better interpretation of mineral behavior, reagent performance, and process conditions during metallurgical testing.

Q5. How should pH meters be integrated into a complete leaching test and process monitoring workflow?

pH meters are commonly integrated into mining laboratory workflows as part of solution monitoring during sample preparation, mineral testing, and metallurgical evaluation. In leaching experiments, pH measurement helps researchers monitor chemical conditions and evaluate how process parameters influence test results. The instrument should be selected according to the required testing environment, sample characteristics, and documentation needs. For laboratory expansion or automated monitoring systems, features such as data storage and communication options may support better process records and improve traceability of experimental results.

Q6. How often should pH electrodes be calibrated and maintained for mining laboratory operations?

Calibration frequency depends on testing conditions, sample characteristics, and measurement workload. Mining laboratories performing frequent leaching tests, flotation studies, or solution analysis should establish a maintenance schedule based on actual operating conditions. Routine procedures typically include calibration with appropriate buffer solutions, electrode cleaning, proper storage, and inspection for response changes. Effective maintenance helps extend electrode service life, reduce unexpected measurement errors, and maintain consistent data quality during continuous laboratory operation and metallurgical testing programs.

Q7. How does temperature compensation affect pH measurement accuracy in mining laboratory applications?

Temperature variations can influence pH measurement results, especially during extended leaching experiments or chemical testing processes where solution temperatures change. Automatic temperature compensation (ATC) features can help adjust measurements according to sample temperature conditions, improving consistency during laboratory operations. When selecting a pH meter, laboratories should consider whether temperature monitoring is required for their specific workflows. Proper temperature control and compensation contribute to more reliable data interpretation in hydrometallurgical studies, mineral processing tests, and reagent evaluation procedures.

Q8. What are the key selection criteria when choosing between benchtop and portable pH meters for mining applications?

The choice between benchtop and portable pH meters depends on laboratory requirements, testing location, and workflow organization. Benchtop models are commonly used for controlled laboratory analysis where repeated measurements and detailed documentation are required. Portable units may be suitable for field sampling, site inspections, or applications requiring measurement flexibility. Mining companies should evaluate sample types, measurement frequency, environmental conditions, and data management requirements when selecting equipment for exploration, mineral testing, process monitoring, or laboratory expansion projects.

Q9. How can laboratories validate pH meter performance for ISO 17025 testing requirements?

Validation of pH meter performance involves establishing procedures for calibration, measurement verification, maintenance, and record management. Laboratories typically use certified reference buffers and documented operating procedures to confirm measurement reliability. For mining laboratories working under quality management systems, equipment qualification and routine performance checks help ensure traceable and consistent analytical results. Proper documentation supports reliable pH measurement throughout mineral testing, metallurgical evaluation, and research workflows where accurate chemical control is required.

Q10. How to troubleshoot electrode drift, slow response, or calibration failure in pH meter operations?

Common pH meter issues such as unstable readings, slow response, or unsuccessful calibration may result from electrode contamination, improper storage, aging components, unsuitable sample conditions, or incorrect calibration procedures. Troubleshooting should begin with checking electrode condition, cleaning requirements, buffer quality, and measurement environment. In mining laboratory applications, regular inspection and preventive maintenance are important because samples may contain corrosive chemicals, suspended solids, or high ionic concentrations. A systematic maintenance approach helps maintain reliable measurements during continuous testing operations.

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