Order Code	Product Name
L-02-06-M02	Laboratory ORP Meter for Mining and Hydrometallurgy Redox Testing

Laboratory ORP Meter for Mining and Hydrometallurgy Redox Testing

Brief Introduction

This Laboratory ORP Meter is a professional analytical instrument designed for redox potential, pH and temperature measurement in mining laboratories, hydrometallurgical workshops and mineral quality control facilities. Supporting flexible measurement modes and selectable resolution settings, the instrument provides stable and repeatable readings for corrosive mineral liquids, ore leachates and process solutions.

Equipped with a large backlit LCD display, data storage function and calibration capability, this ORP meter supports 1–5 point pH calibration and 1-point ORP offset calibration to help technicians maintain reliable measurement results. With relative and absolute mV measurement modes, compact structure and versatile testing functions, it supports mineral sample preparation and wet metallurgical laboratory workflows.

Application Scope

This Laboratory ORP Meter is suitable for mining laboratory procedures including sample preparation, metallurgical testing, mineral analysis and hydrometallurgical process monitoring.

Mineral Sample Preparation

The instrument monitors pH and redox potential during ore acid dissolution, reagent mixing and mineral suspension conditioning. Accurate ORP and pH measurement helps maintain stable solution conditions and supports consistent preparation before further analytical testing.

Mineral Testing and Metallurgical Analysis

The ORP meter supports solution property measurement for standard solution preparation, mineral supernatant testing and wastewater quality analysis. Adjustable resolution settings and stable measurement performance improve the consistency and comparability of mineral analytical data.

Hydrometallurgy Laboratory Applications

This instrument serves as monitoring equipment for leaching, precipitation, solvent extraction and electrolytic experiments. Real-time ORP and temperature measurement supports evaluation of redox reaction conditions and laboratory-scale hydrometallurgical testing processes.

Features

• Clear Data Display: Large backlit LCD screen provides clear visualization under different laboratory lighting conditions, improving convenience during mineral testing operations.

• Flexible Calibration Functions: Supports 1-point ORP offset calibration and 1–5 point pH calibration, allowing measurement correction according to standard buffer solutions.

• Dual mV Measurement Modes: Relative and absolute mV measurement modes support different testing standards and experimental requirements for redox reaction evaluation.

• Adjustable Resolution Options: Multiple display resolution selections adapt to both routine quality control and higher-precision mineral research applications.

• Large Data Storage Capacity: Built-in memory stores up to 500 groups of testing data, supporting historical review, comparison and experimental traceability.

• Automatic Temperature Compensation: Temperature compensation function reduces temperature-related measurement deviation and supports stable pH and ORP testing under changing laboratory conditions.

• Wide Temperature Measurement Range: The instrument supports conventional wet chemistry testing and medium-temperature metallurgical reaction monitoring applications.

Specification

Parameter Item	Technical Index
pH Measurement Range	-2.000～20.000 pH
pH Measurement Accuracy	±0.002 pH
pH Calibration Points	1–5 points
mV Measurement Range	0～±1999.9 mV
mV Measurement Accuracy	±0.2 mV
mV Display Resolution	0.1 mV / 1 mV (optional)
ORP Calibration Point	1 point offset calibration
Measurement Mode	Relative mV / Absolute mV
Temperature Measurement Range	0–105℃ / 32–221℉
Temperature Accuracy	±1℃ / ±1.8℉
Temperature Compensation Range	0–100℃ / 32–212℉
Data Storage Capacity	500 groups
Overall Dimension	210 × 188 × 60 mm
Net Weight	1.5 kg

Other Specification for Option

Multiple customized versions and matching electrode specifications are available to suit different testing accuracy requirements and experimental scenarios. Please contact our team for detailed configuration solutions.

Why Choose FKN PANDA

Reliable Testing Accuracy: FKN PANDA Laboratory ORP Meter combines accurate mV and pH measurement, multi-point calibration and temperature compensation functions to provide dependable redox potential data for mineral analysis and hydrometallurgical evaluation.

Operational Reliability: Stable sensing performance and standard calibration functions support continuous monitoring of acidic and corrosive mineral solutions while reducing measurement drift risks during laboratory operation.

Improved Laboratory Efficiency: Large-capacity data storage and flexible measurement modes support batch testing and experimental record management, reducing manual data handling requirements.

Mining Workflow Compatibility: Wide measurement ranges and professional ORP monitoring functions support ore pretreatment, leaching reaction evaluation and mineral solution quality inspection procedures.

Cost-Effective Laboratory Solution: Integrated pH, ORP and temperature measurement functions reduce the need for multiple single-function instruments, helping laboratories simplify equipment procurement and maintenance management.

ORP Meter – FAQ

Q1. How to select an ORP meter for redox potential monitoring in hydrometallurgical leaching workflows?

Selecting an ORP meter for mining laboratory applications requires consideration of the solution chemistry, testing objectives, and operating environment. In hydrometallurgical workflows, ORP measurement is commonly used to monitor oxidation-reduction conditions during leaching tests, reagent evaluation, and metallurgical studies. Important selection factors include electrode compatibility with the solution composition, measurement stability, calibration requirements, and data management functions. A suitable ORP meter should support reliable monitoring throughout the laboratory workflow, from mineral sample preparation and testing to metallurgical evaluation and process condition assessment.

Q2. What factors should be considered when choosing an ORP electrode for mining laboratory applications?

The ORP electrode is a critical component that directly influences measurement reliability in mining solutions. Selection should consider factors such as solution composition, oxidation or reduction conditions, temperature range, suspended solids, and chemical exposure. Different leaching systems, including sulfide oxidation, cyanidation, and acidic process solutions, may require different electrode materials and reference systems. Proper electrode selection helps maintain stable redox potential measurements, reduce maintenance frequency, and improve data consistency during hydrometallurgical testing and mineral processing research.

Q3. How does ORP electrode design affect measurement stability in complex mining solutions?

ORP electrode design affects measurement response, stability, and resistance to contamination in challenging mining environments. Solutions containing high chloride, sulfide, cyanide, or dissolved metals may influence electrode performance during extended testing. Factors such as sensing material, reference electrode structure, junction design, and surface condition can impact measurement consistency. In laboratory leaching studies and metallurgical experiments, selecting an electrode design suitable for the specific solution chemistry helps laboratories obtain more reliable redox data for process evaluation and optimization.

Q4. How can ORP meters support leaching kinetics studies and metallurgical process evaluation?

ORP meters provide important information about redox conditions during metallurgical testing, helping engineers understand the relationship between chemical environment and mineral dissolution behavior. In leaching kinetics studies, ORP monitoring can be combined with other parameters such as pH, temperature, and reagent concentration to evaluate process conditions. Reliable ORP data supports interpretation of oxidation-reduction reactions, reagent performance, and process response during laboratory investigations. This makes ORP measurement a valuable part of the workflow from mineral testing to metallurgical decision-making.

Q5. How should ORP meters be integrated into hydrometallurgical laboratory workflows?

ORP meters can be integrated into laboratory workflows for leaching tests, oxidation studies, cyanidation research, and process simulation experiments. During sample testing, ORP monitoring helps track changes in solution conditions and provides additional information for evaluating metallurgical reactions. For new laboratory setups, expansion projects, or equipment replacement, the instrument should be selected according to testing requirements, sample characteristics, and documentation needs. Integration with data recording systems may further improve traceability and support technical analysis of experimental results.

Q6. How should ORP meters be calibrated and maintained for consistent mining laboratory performance?

Regular calibration and maintenance are essential for maintaining reliable ORP measurements in mining laboratory operations. Calibration procedures should follow appropriate reference standards and laboratory quality requirements. Routine maintenance may include electrode cleaning, surface inspection, proper storage, and verification of response stability. Because mining samples can contain corrosive chemicals, suspended particles, or high ionic concentrations, maintenance schedules should be established according to actual operating conditions. Proper care helps reduce measurement drift and supports consistent results during continuous metallurgical testing programs.

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

Temperature variations can influence ORP measurement behavior, particularly during extended leaching experiments and controlled metallurgical tests. Changes in solution temperature may affect reaction rates, electrode response, and interpretation of redox conditions. When selecting an ORP meter, laboratories should consider temperature monitoring requirements and whether temperature compensation functions are needed for their applications. Maintaining appropriate temperature control and recording operating conditions helps improve measurement consistency and supports more accurate evaluation of hydrometallurgical processes.

Q8. What are the key differences between laboratory and online ORP meter configurations for mining applications?

Laboratory and online ORP meters serve different monitoring requirements within mining operations. Laboratory ORP meters are commonly used for controlled experiments, leaching studies, and metallurgical research where samples are analyzed individually. Online configurations are designed for continuous process monitoring where real-time measurement is required. When selecting between these options, laboratories and mining operations should evaluate testing frequency, process requirements, sample conditions, and data integration needs. The appropriate configuration depends on whether the objective is research evaluation, process development, or continuous monitoring.

Q9. How can ORP meter performance be validated for mining laboratory quality requirements?

ORP meter validation involves confirming measurement reliability through documented calibration procedures, reference standards, maintenance records, and operating verification. Mining laboratories performing controlled metallurgical testing should establish procedures for checking instrument performance and maintaining traceability of measurement results. Validation activities help ensure that ORP data used in leaching studies, mineral processing research, and process evaluation meets laboratory quality expectations. Proper documentation also supports consistent operation when laboratories expand testing capacity or implement structured quality management practices.

Q10. How to troubleshoot ORP drift, unstable readings, or electrode fouling in mining solution measurements?

Common ORP measurement issues such as unstable readings, slow response, or signal drift 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, reference system performance, and solution characteristics. In mining laboratory applications, regular inspection is particularly important because leaching solutions may contain corrosive chemicals, high solids, or reactive species. A systematic maintenance approach helps maintain reliable ORP measurements during long-term metallurgical testing workflows.

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