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EI-DVI Model 1012 Microprocessor pH Meter: High Accuracy Laboratory System:
The EI-DVI Model 1012 Microprocessor pH Meter is a high-performance, microcontroller-based system engineered for accurate, reliable, and precise measurement of pH, millivolts (mV), and temperature. Utilizing advanced microprocessor technology and engineering techniques, the Model 1012 delivers enhanced accuracy and reproducibility, serving as an indispensable tool in research and quality control environments.
Core Features and Operation:
The Model 1012 features a research-grade design equipped with a user-friendly interface.
Measurement Capabilities The instrument measures three essential parameters: pH, mV, and Temperature. Its microcontroller-based system ensures enhanced accuracy and reproducibility for comprehensive electrochemical analysis of solutions.
Display and Interface The meter utilizes a 128 x 64 dots Graphical LCD Display to show measurement parameters and provide intuitive prompts that guide the user throughout the measurement process. The control panel is operated via 8 Soft Touch Membrane Type Keys for comfortable and straightforward operation.
Advanced Calibration and Reliability:
The system supports sophisticated calibration methods and features in-built reliability checks:
• Calibration: Supports both automatic and manual calibration.
• Auto Buffer Recognition: Automatically identifies standard buffer solutions (4.00, 7.00, and 9.20 pH).
• Temperature Compensation: Offers both Automatic and Manual Temperature Compensation across the range of 0–100 °C, ensuring accurate pH readings even in solutions with fluctuating temperatures.
• Error Codes: In-built error codes alert users to potential issues such as incorrect buffers, over-range conditions, and procedural errors, enhancing measurement reliability.
Data Management and Output The Model 1012 is designed for efficient data handling and documentation:
• Storage: The instrument is capable of storing up to 1000 samples in its non-volatile memory.
• Printer Attachment: Provision is included for the attachment of any dot matrix or thermal printer, utilizing an External Serial RS 232 interface, allowing for easy printing of stored results.
Versatile Applications:
The reliability and accuracy of the Model 1012 make it extremely useful across a wide range of industries and laboratories, including:
• Chemical and Pharmaceutical Industries: Essential for precise pH and mV measurements in chemical analysis and quality control processes.
• Agriculture and Soil Analysis: Provides critical soil pH measurements necessary for optimizing fertilizer usage and improving crop yield.
• Water Quality Control: Utilized in various water environments such as swimming pools, water works departments, boiler feed water, and water purification plants to monitor and maintain optimal water quality.
• Industrial Use: Suitable for demanding environments like petroleum refineries and breweries.
Technical Specifications (Model 1012):
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Parameter
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Specification (Model 1012)
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Type
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Microprocessor pH Meter (Table-Top/Benchtop)
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Function
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Measures pH, mV, and Temperature
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pH Range
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-2.00 to 20.00 pH
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pH Resolution
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0.01 pH
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pH Accuracy
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±0.01 pH, ±1 Digit
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mV Range
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0 to ±1999.9 mV
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mV Resolution
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0.1 mV
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mV Accuracy
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±0.1 mV, ±1 Digit
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Temperature Range
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-5 to 110 °C
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Temperature Resolution
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0.1 °C
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Temperature Accuracy
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±0.1 °C
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Temperature Compensation
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0 to 100 °C Auto/Manual
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Auto Buffer Recognition
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4.00, 7.00, and 9.20 pH
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Calibration
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Auto/Manual
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Display
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128 x 64 dots Graphical LCD Display
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Keyboard
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8 Keys, Soft Touch Membrane Type
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Storage
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Up to 1000 Samples
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Printer Interface
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External Serial RS 232 Dot Matrix/Thermal Printer Interface
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Electrode Slope
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80% to 120%
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Power Supply
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12V DC using 230V ± 10% AC Adaptor (50 Hz)
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Dimensions (L x B x H)
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270 x 202 x 80 mm (Approx.)
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Weight
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0.8 Kg (Approx.)
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Included Accessories:
The standard package includes essential components for immediate operation and accurate measurement:
• Combination pH Electrode
• Temperature Probe
• pH Electrode Stand
• Buffer Tablets (7.0 and 4.0 pH)
• Operation Manual
• Dust Cover
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