ESICO Microprocessor pH-EC Meter 1611

ESICO Microprocessor pH-EC Meter 1611

ESICO Microprocessor Based pH-EC Meter 1611: Advanced Triple-Parameter Water Analysis System

The Microprocessor Based pH-EC Meter Model 1611 is a sophisticated solid-state instrument designed for precise measurement of pH, Electrical Conductivity (EC), and Temperature in a single compact unit. Developed by Environmental and Scientific Instruments Co. (ESICO), an ISO 9001:2000 certified manufacturer, this advanced analyzer combines cutting-edge microprocessor technology with user-friendly operation to deliver enhanced accuracy and reproducibility for water quality testing and laboratory applications.

Key Features & Benefits ESICO Microprocessor pH-EC Meter 1611

• Triple-Parameter Measurement - Comprehensive testing of pH, EC, and temperature in one device
• Microprocessor Technology - Latest digital processing ensures high accuracy and stable readings
• 16x2 Alphanumeric LCD Display - Clear backlit screen for excellent visibility in all conditions
• Intuitive Interface - 8 soft-touch membrane keys with user-friendly prompts guide through measurements
• Extensive Data Storage - Memory for 90 samples retained even when power is off
• Printer Connectivity - Direct connection to dot-matrix printers via Centronics interface
• Auto Temperature Compensation - Ensures accurate readings across varying temperatures
• Auto Buffer Recognition - Automatically identifies standard buffer solutions in pH mode
• Auto-Ranging EC Measurement - Selects optimal measurement scale for conductivity readings
• Programmable Parameters - Adjustable reference temperature and temperature coefficient in EC mode
• Versatile Applications - Suitable for laboratory, industrial, agricultural, and water quality testing
• ISO Certified Quality - Built to exacting standards with 1-year warranty

Technical Specifications

Parameter	pH	Conductivity (EC)	Temperature
Range	0-14.00 pH	0-20, 0-200 μS 0-2, 0-20, 0-200 mS	0-100°C
Resolution	0.01 pH	0.01 μS	0.1°C
Accuracy	0.01 pH ± 1 Digit	± 0.5% FS ± 1 Digit	± 0.1°C
Temperature Compensation	Auto/Manual (0-100°C)	Auto/Manual (0-50°C)	-
Cell Constant	-	Adjustable (0.05-10.5)	-
Temperature Coefficient	-	Adjustable (0.1-4.0%)	-
Auto Buffer Recognition	4.00, 7.00, 9.20 pH	-	-
Range Selection	-	Automatic	-

General Specifications ESICO Microprocessor pH-EC Meter 1611

• Display: 16x2 Line Alphanumeric LCD Display with Backlit
• Storage: Up to 90 Samples
• Keyboard: 8 Soft touch membrane type keys
• Printer Interface: Provision for attachment of Dot-Matrix Printer with Centronics Interface
• Power: 230V ± 10% AC, 50 Hz
• Weight: 2.5 Kg (Approx)
• Dimensions:
  • Instrument: 285 x 195 x 90 mm (L x B x H) (Approx.)
  • Packing Box: 335 x 305 x 265 mm (L x B x H) (Approx.)

Included Accessories

• pH Combination Electrode
• pH Buffer Tablets (4.00 & 7.00 pH)
• Conductivity Cell
• Temperature Probe
• Electrode Stand
• Dust Cover
• Instruction Manual
• Mains Lead

Applications & Industries ESICO Microprocessor pH-EC Meter 1611

Laboratory & Research

• Chemical Analysis - Precise measurement of solution properties
• Research Projects - Reliable data collection for scientific studies
• Quality Control - Verification of product and process specifications
• Educational Institutions - Teaching and demonstration of water chemistry principles
• Environmental Testing - Analysis of water samples for contamination and quality

Industrial Applications ESICO Microprocessor pH-EC Meter 1611

• Pharmaceutical Manufacturing - Quality assurance for water-based formulations
• Boiler Feed Water Monitoring - Prevention of scale formation and corrosion
• Water Purification Plants - Process control and output verification
• Petroleum Refineries - Water quality assessment for various processes
• Breweries - Water quality control for beverage production
• Fertilizer Plants - Solution preparation and quality verification

Water Quality Management ESICO Microprocessor pH-EC Meter 1611

• Municipal Water Works - Regulatory compliance and treatment monitoring
• Swimming Pool Maintenance - Optimal water chemistry for safety and comfort
• Aquaculture - Monitoring water parameters for aquatic species health
• Wastewater Treatment - Process control and discharge compliance
• Drinking Water Quality - Verification of potability standards

Agricultural Applications

• Soil Testing Laboratories - Analysis of soil extract properties
• Irrigation Water Assessment - Evaluation of water suitability for crops
• Hydroponics - Nutrient solution monitoring and adjustment
• Crop Research - Investigation of soil-water-plant interactions
• Agricultural Extension Services - Support for farmer recommendations

Detailed Parameter Functions ESICO Microprocessor pH-EC Meter 1611

pH Measurement System

The pH measurement capability of the Model 1611 provides comprehensive analysis of solution acidity/alkalinity:

• Complete Range Coverage - Full 0-14 pH scale with 0.01 pH resolution
• High Precision - Accuracy of 0.01 pH ± 1 digit for critical applications
• Intelligent Calibration - Automatic recognition of 4.00, 7.00, and 9.20 pH buffers
• Temperature Compensation - Auto or manual adjustment from 0-100°C
• Stable Readings - Advanced signal processing reduces measurement noise
• Intuitive Operation - Guided calibration and measurement procedures

Conductivity (EC) Measurement System ESICO Microprocessor pH-EC Meter 1611

The conductivity function delivers precise measurement of solution ionic content:

• Wide Measurement Range - From 0 to 200 mS across multiple auto-selected ranges
• Fine Resolution - 0.01 μS resolution for detecting minor conductivity changes
• High Accuracy - ± 0.5% full scale for reliable measurements
• Custom Cell Constant - Adjustable from 0.05 to 10.5 for different conductivity cells
• Temperature Compensation - Auto/manual adjustment from 0-50°C
• Programmable Temperature Coefficient - Customizable from 0.1-4.0% for different solutions
• Auto-Ranging - Automatic selection of optimal measurement scale

Temperature Measurement System

The dedicated temperature function provides both standalone measurements and compensation for other parameters:

• Wide Measurement Range - Covers 0-100°C for diverse applications
• High Resolution - 0.1°C increments for precise temperature monitoring
• Superior Accuracy - ±0.1°C precision for critical temperature assessment
• Dedicated Probe - Specialized temperature sensor for reliable readings
• Integrated Display - Temperature values shown on the main display interface
• Parameter Compensation - Provides correction data for pH and EC measurements

Advanced System Features ESICO Microprocessor pH-EC Meter 1611

Intelligent Memory & Data Management

The Model 1611 incorporates sophisticated data handling capabilities:

• 90-Sample Storage - Extensive memory for field or laboratory measurements
• Non-Volatile Memory - Data retained even when power is disconnected
• Measurement Review - Recall of stored readings for analysis and comparison
• Printer Integration - Direct output to attached printer for documentation
• Centronics Interface - Standard connection to dot-matrix printers
• Selective Data Output - Print individual or multiple stored results

User-Friendly Interface ESICO Microprocessor pH-EC Meter 1611

The instrument features an intuitive design for efficient operation:

• Alphanumeric Display - 16x2 character LCD with backlight for clear visibility
• Membrane Keypad - 8 soft-touch keys for reliable, splash-resistant operation
• Interactive Prompts - On-screen guidance throughout measurement process
• Logical Menu Structure - Straightforward navigation between functions
• Parameter Selection - Simple switching between measurement types
• Status Indicators - Visual feedback on current operations and settings

Microprocessor Architecture

Advanced digital design delivers superior performance and capabilities:

• Digital Signal Processing - Enhanced accuracy through sophisticated algorithms
• Automatic Calibration - Streamlined procedures with buffer recognition
• Intelligent Range Selection - Optimal measurement scaling without manual switching
• Parameter Integration - Coordinated measurements between different functions
• Real-Time Compensation - Dynamic adjustment for temperature effects
• System Diagnostics - Self-monitoring for reliable operation

Understanding Water Quality Parameters

pH Measurement ESICO Microprocessor pH-EC Meter 1611

pH is a critical parameter for assessing water quality and chemical solutions:

• Definition - Logarithmic scale measuring hydrogen ion concentration (acidity/alkalinity)
• Neutral Point - pH 7.0 represents neutral solutions
• Acidic Range - Values below 7.0 indicate increasing acidity
• Alkaline Range - Values above 7.0 indicate increasing alkalinity
• Temperature Sensitivity - pH changes with temperature, requiring compensation
• Critical Control Parameter - Essential for numerous industrial processes and biological systems

Electrical Conductivity (EC)

Conductivity measures water's ability to conduct electrical current, indicating the concentration of ionized substances:

• Pure Water Baseline - Ultrapure water has very low conductivity (< 0.1 μS/cm)
• Dissolved Ion Indicator - Increases proportionally with dissolved salt content
• Temperature Sensitivity - Conductivity changes approximately 2% per °C
• Water Source Identifier - Different water sources have characteristic conductivity signatures
• Industrial Process Monitor - Critical parameter for many manufacturing processes

Typical Parameter Ranges for Common Applications

Common pH Ranges by Application ESICO Microprocessor pH-EC Meter 1611

Application	Typical pH Range	Significance
Drinking Water	6.5-8.5	Potability standards and corrosion control
Swimming Pools	7.2-7.8	Disinfection effectiveness and swimmer comfort
Freshwater Aquariums	6.5-7.5	Optimal conditions for most freshwater fish
Agricultural Soil (extracts)	6.0-7.5	Nutrient availability for most crops
Boiler Water	8.5-9.5	Corrosion prevention in boiler systems
Industrial Wastewater	6.0-9.0	Typical regulatory discharge requirements

Common Conductivity Ranges by Application ESICO Microprocessor pH-EC Meter 1611

Water Type	Typical Conductivity Range	Significance
Ultrapure Water	0.05-0.5 μS/cm	Laboratory, pharmaceutical, semiconductor manufacturing
Distilled Water	0.5-3 μS/cm	Laboratory applications, battery water
Drinking Water	50-1500 μS/cm	Public water supply quality monitoring
Freshwater Rivers	100-2000 μS/cm	Environmental monitoring, ecological studies
Brackish Water	2000-15,000 μS/cm	Estuary monitoring, certain industrial processes
Seawater	45,000-55,000 μS/cm	Marine studies, aquaculture, desalination

Operational Benefits ESICO Microprocessor pH-EC Meter 1611

Laboratory & Field Testing Advantages

The Model 1611 offers significant benefits for testing procedures:

• Multi-Parameter Efficiency - Complete analysis with a single instrument
• Time Savings - Rapid switching between different measurements
• Streamlined Calibration - Automatic procedures reduce setup time
• Consistent Methodology - Standardized approach across all parameters
• Reduced Equipment Needs - Single device replaces multiple meters
• Documentation Simplification - Integrated data storage and printing capabilities

Economic Advantages ESICO Microprocessor pH-EC Meter 1611

The integrated design provides cost benefits over multiple single-parameter instruments:

• Lower Equipment Investment - One device instead of separate pH and EC meters
• Reduced Maintenance - Fewer instruments to service and calibrate
• Space Optimization - Smaller footprint in laboratory or workspace
• Simplified Inventory - Fewer consumables and accessories to manage
• Extended Capabilities - Advanced features not typically found in basic meters
• Quality Assurance - ISO-certified manufacturing with warranty coverage

Setup & Operation Guidelines ESICO Microprocessor pH-EC Meter 1611

Initial Setup

1. Place the instrument on a stable, level surface away from vibration and electromagnetic interference
2. Connect appropriate electrodes and probes to their respective ports
3. Attach the temperature probe for automatic temperature compensation
4. Connect to power supply (230V ± 10% AC, 50 Hz)
5. Allow system to stabilize before calibration or measurement
6. For printer output, connect compatible dot-matrix printer via Centronics interface

Calibration Procedures ESICO Microprocessor pH-EC Meter 1611

• pH Calibration
  1. Prepare fresh buffer solutions (4.00, 7.00, 9.20 pH)
  2. Select pH mode and follow on-screen prompts
  3. Immerse electrode in appropriate buffer solutions as directed
  4. System automatically recognizes standard buffers
  5. Rinse electrode thoroughly between buffer solutions
• EC Calibration
  1. Prepare standard conductivity solution appropriate for your range
  2. Select EC mode and follow calibration prompts
  3. Adjust cell constant if necessary (0.05-10.5 range)
  4. Set temperature coefficient appropriate for your solutions (0.1-4.0%)
  5. Program reference temperature as needed

Best Practices for Accurate Measurements ESICO Microprocessor pH-EC Meter 1611

• Electrode Maintenance - Regularly clean and properly store electrodes
• Sample Handling - Allow samples to reach stable temperature before testing
• Calibration Frequency - Perform daily calibration for critical applications
• Rinsing Procedure - Thoroughly rinse electrodes between samples with distilled water
• Parameter Sequencing - Measure least contaminating parameters first (typically pH before EC)
• Data Recording - Use storage function to capture measurements for later analysis

Electrode Care & Maintenance ESICO Microprocessor pH-EC Meter 1611

pH Electrode

• Storage Solution - Keep electrode bulb moist in storage solution or 4.0 pH buffer
• Regular Cleaning - Rinse with distilled water after each use
• Deep Cleaning - For contaminated electrodes, use appropriate cleaning solutions
• Bulb Protection - Avoid touching the glass bulb to prevent damage
• Inspect Regularly - Check for cracks, salt deposits, or reference junction issues
• Rejuvenation - Soak tired electrodes in rejuvenation solution if response slows

Conductivity Cell ESICO Microprocessor pH-EC Meter 1611

• Rinsing - Always rinse with distilled water before and after use
• Periodic Cleaning - Remove contaminants with mild detergent or alcohol
• Platinization - For platinum cells, re-platinize when necessary
• Dry Storage - Unlike pH electrodes, store conductivity cells dry
• Inspect Contacts - Ensure connectors are clean and corrosion-free
• Avoid Damage - Protect cell from physical impacts

About Environmental and Scientific Instruments Co. (ESICO)

Environmental and Scientific Instruments Co. (ESICO) is an ISO 9001:2000 certified manufacturer specializing in laboratory and analytical instruments. With a comprehensive product range covering spectrophotometers, flame photometers, pH meters, conductivity meters, dissolved oxygen meters, and integrated analysis systems, ESICO provides high-quality scientific equipment for research, educational, industrial, and environmental applications. The company's commitment to quality is reflected in their ISO certification and one-year warranty on the Microprocessor Based pH-EC Meter Model 1611. As part of their extensive product lineup, ESICO offers complementary instruments including various types of spectrophotometers, moisture analyzers, dissolution testers, microscopes, and portable field testing equipment.

Additional ESICO Products ESICO Microprocessor pH-EC Meter 1611

ESICO's comprehensive range includes:

• Semi Auto Analyzers
• Single and Double Beam UV/VIS Spectrophotometers
• Flame Photometers
• Haemoglobin Meters
• Photo Colorimeters
• Various Water Quality Analyzers (TDS, DO, Salinity, Turbidity)
• Karl Fischer Moisture Titrators
• Fluorometers
• Pharmaceutical Testing Equipment (Dissolution, Disintegration, Friability)
• Temperature Measurement Instruments
• Water & Soil Analysis Kits
• Portable Test Meters
• Various Laboratory Microscopes

Summary ESICO Microprocessor pH-EC Meter 1611

The ESICO Microprocessor Based pH-EC Meter Model 1611 represents an advanced, integrated solution for professional water quality analysis and laboratory testing. By combining three essential measurement parameters—pH, electrical conductivity, and temperature—in a single microprocessor-controlled instrument, it delivers exceptional versatility, accuracy, and value. Key advantages include the user-friendly interface with alphanumeric display and guided operation, extensive 90-sample storage capacity, automatic calibration features, and programmable parameters for application-specific customization. The instrument's comprehensive measurement capabilities make it ideal for diverse applications in chemical laboratories, pharmaceutical manufacturing, water treatment facilities, agricultural testing, and environmental monitoring. Built to ISO 9001:2000 standards and backed by a one-year warranty, the Model 1611 offers the reliability, precision, and functionality required for professional water quality assessment and laboratory analysis. With its combination of advanced features, multi-parameter integration, and user-focused design, this instrument delivers exceptional performance and operational efficiency for both routine testing and specialized analytical applications.