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Brochure-Automatic COD Monitor CODA-500

Brochure-Automatic COD Monitor CODA-500

Brochure-Automatic COD Monitor CODA-500

Product catalog summary

Overview

The document details the HORIBA CODA-500, an advanced automatic Chemical Oxygen Demand (COD) monitor designed for precise water quality analysis and wastewater monitoring. It emphasizes the instrument's innovative technology, operational efficiency, and integration within a broader Water Quality Monitoring System.

Key Specifications and Features

  • Reagent Efficiency: Uses only one-tenth the reagent volume compared to conventional systems, reducing operational costs.
  • Sample Volume: Measures 10 mL samples with dilution options for high COD concentrations.
  • Measurement Methods: Supports Acid Potassium Permanganate (CODA-500-A/C) and Alkaline Potassium Permanganate (CODA-500-B) methods.
  • Automation: Fully automated JIS-based measurement with a multilingual touch panel LCD interface.
  • Power Consumption: Reduced by 50% using direct heating without cooling water.
  • Connectivity: Interfaces include RS-232C, RS-485, USB, and MODBUS® for flexible integration.

Instrument Components

  • Control Panel: Touch panel displaying measurements, parameters, alarms, and maintenance info.
  • Reagent Measuring Unit: Patent-pending precise reagent injection system.
  • Reaction Tank Unit: Mixes, heats, and agitates samples and reagents.
  • Titration Unit: Uses platinum electrode for endpoint detection.
  • Dilution and Mixing Tanks: Optional units for sample dilution.
  • Waste Fluid Tank: 20-liter capacity with full-tank alarm and contact output.
  • Pure Water Tank: Optional for locations without tap water.
  • Reagent Tanks: Stores reagents A to E with ~1 month capacity and low-level alarms.
  • Tap Water Supply System: Includes flowmeter, activated charcoal filter, and valves.
  • Printer: Equipped with automatic winding for printouts.

Operational Advantages and Innovations

  • Color-coded reagent tubes prevent connection errors.
  • Color LCD enhances user interface and readability.
  • Reagent delivery service eliminates manual mixing, simplifying maintenance.
  • Compact sample and reagent volumes reduce chemical use and waste.
  • Alarm systems monitor reagent levels, waste tank capacity, and operational status for reliability.

Measurement Procedures

Acid Method (CODA-500-A/C):

  1. Measure 10 mL sample (diluted if needed).
  2. Add 1 mL (1+2) sulfuric acid.
  3. Add 0.5 mL 200 g/L silver nitrate solution.
  4. Add 1 mL N/40 potassium permanganate.
  5. Heat 30 minutes for oxidation.
  6. Add 1 mL N/40 sodium oxalate.
  7. Titrate with N/40 potassium permanganate.

Alkaline Method (CODA-500-B):

  1. Measure 10 mL sample (diluted if needed).
  2. Add 1 mL 20 g/L sodium hydroxide.
  3. Add 1 mL N/40 potassium permanganate.
  4. Heat 30 minutes under alkaline conditions.
  5. Add 1 mL N/40 sodium oxalate plus (1+2) sulfuric acid.
  6. Titrate with N/40 potassium permanganate.

General Specifications

  • Dimensions: 600(W)×510(D)×1600(H) mm
  • Weight: Approx. 150 kg
  • Power Supply: 100-240V AC ±10%, 50/60 Hz
  • Power Consumption: 250VA (100-120V), 350VA (120-240V)
  • Installation: Indoor, well-ventilated, dust/mist/corrosive gas free environment

Performance and Measurement Parameters

  • Measurement Range: 0-20 mg/L up to 0-2000 mg/L (with dilution)
  • Repeatability: ±1% F.S. (20 mg/L), ±2% (30-500 mg/L), ±5% (1000-2000 mg/L)
  • Zero Drift: ±3-5% F.S. over 24 hours
  • Measuring Principle: Acidic or alkaline potassium permanganate method at 100ºC (JIS K 0806)
  • Measurement Interval: 60 minutes
  • Heating: Direct heating method
  • Endpoint Detection: Potentiometric titration at constant current

Sample and Operating Conditions

  • Sample Temperature: 2-40 ºC
  • Sample Flow Rate: 2-20 L/min (dependent on overflow tank)
  • Chloride Ion Concentration: Alkaline method recommended for high chloride levels
  • Ambient Conditions: 2-40 ºC, up to 85% relative humidity (non-condensing)

Input/Output and Communication

  • Display: Color LCD touch panel with multilingual support
  • Analog Outputs: Standard 3 points (4-20mA DC), optional up to 6 points
  • Contact Outputs: Standard 14 points, optional 21 points; insulated non-voltage contacts
  • Analog Inputs: Standard 1 point (4-20mA DC), optional 2 points
  • Contact Inputs: Standard 9 points, optional 17 points; insulated
  • Communication: RS-485 with Modbus protocol standard; RS-232C optional

Functions and Features

  • Automated measurement start, calibration, cleaning, blank measurement, and maintenance
  • COD load calculation and data memory for 1 year
  • Printer with automatic take-up device included
  • Silver nitrate-free method available for samples with low chloride ions

Consumables and Maintenance

  • Reagents (potassium permanganate, sodium oxalate, sulfuric acid, silver nitrate, sodium thiosulfate, sodium hydroxide) replaced approximately every 40 days
  • Printer paper replaced every 2 months
  • Stirrer and reaction tank parts replaced every 3-6 months depending on usage
  • Replacement intervals vary with sample conditions and cleaning frequency

System Components and Accessories

  • Reagent tanks with ~1 month capacity and low-level alarms
  • Reaction tank unit for mixing, heating, titration
  • Platinum electrode for titration endpoint detection
  • Flowmeter and tap water supply unit (for models using tap water)
  • Waste fluid tank (20 L) with full alarm
  • Optional pure water tank for sites without tap water
  • Accessories include printer paper, ball valves, silicone tubes, stirrers, reaction tanks, and gaskets

Water Quality Monitoring System Integration

HORIBA provides a comprehensive system integrating CODA-500 with other analyzers (total nitrogen/phosphorus, organic pollutants, pH, conductivity, turbidity), water sampling, data acquisition, and remote communication systems. This supports environmental monitoring for wastewater discharge and aquatic ecosystem management.

Additional Notes

  • Specifications and appearance may change without notice
  • Color variations possible due to printing
  • Reagent delivery service available under annual contract
  • Unauthorized copying of catalog content prohibited
  • All brand and product names are trademarks or registered trademarks of their respective owners

Contact Information

For inquiries related to the industrial estate in New Delhi, India:

  • Address: Industrial Estate, Phase 3, New Delhi - 110020, India
  • Phone: +91 (11) 4646-5000
  • Fax: +91 (11) 4646-5020

These contact details are essential for communication and support.

See more

Catalog excerpts

Brochure-Automatic COD Monitor CODA-500-1

Power button Alarm lamp “Access in progress” lamp (saving data to external memory) Printer door “Maintenance in progress“ button USB port Display (touch panel) Control panel Displays measurement values, time, measurement points and other measurement data as well as information on parameters, maintenance and adjustment operations, alarms, function keys and so on. The control panel is a touch panel that enables operation directly from the screen. (Note: the screen shown above is a composite image.) Measuring unit Equipped with an automatic winding function. Measures sample water, dilution sample water and blank water. For the monitoring station for the aquatic environment, it is required to distribute total system to deliver analysis data to the customers. To meet the requests, we can offer Water Quality Monitoring System, that include analytical instruments for water quality , water sampling equipment, data acquisition system, and remote data communication system. HORIBA will provide the Water Quality Monitoring System to meet customers’ request. Save initial cost and labor to collect analytical instruments and other additional devices. HORIBA can provide total system with isolated stations/houses. Dilution water measuring tank (range option) Weighs dilution water. Reagent measuring unit Measures the injection quantity for each reagent (patent pending). Reagent tanks Dilution sample mixing tank (range option) Used to house reagent tanks A - E. The reagent tanks have a storage capacity of approximately one month. When reagent is low, an alarm is triggered and an external contact output signal is issued (output option). When dilution is needed to arrive at the proper sample concentration, the sample and dilution water are mixed in this tank. Platinum electrode Alkaline Method • CODA-500: Automatic Chemical Oxygen Demand (CODMN) monitor, • TPNA-500: Total nitrogen and total phosphorus concentration analyzer, • OPSA-150 (COD(UV)): Organic Pollutant Monitor with the principle of ultraviolet ray absorption by organic matters • pH analyzer • Conductivity analyzer • Turbidity analyzer • Water sampling system • Operation system • Data acquisition system (DAS) • Data communication system • Shelter and other equipment Reaction tank unit Used to mix, heat and agitate the sample and reagent and perform titration. On tap water supply models, used to monitor the flow rate. Titration unit Activated charcoal cylinder Used for titration injection of potassium permanganate to the reaction tank. On tap water supply models, the tap water is passed through activated charcoal to remove impurities. Waste fluid tank (Back: Standard) When the waste fluid tank is full, a waste fluid full alarm is triggered and a contact signal is output. The capacity of the tank is 20 liters. Tap water valve unit On tap water supply models, opens and closes the pressure and flow valves to adjust the supply flow rate. Pure water tank (Front: Optional) Used when tap water cannot be supplied. Color LCD for improved visual recognition Touch panel enables intuitive operations Multilingual support (English, Japanese, Chinese, Korean) Acid Method Used to detect the titration endpoint. Tap water supply unit It has been required to observe wastewater quality (and load in some case) to discharge wastewater to natural water body, such as river and lakes. HORIBA’s Water Quality Monitoring System will provide solutions for the customer’s requests. We can offer Water Quality Monitoring System, which include analytical instruments for water quality, water sampling equipment, data acquisition system, and remote data communication system. As the item to watch the water quality, we are prepared following automatic analytical instruments. measuring unit Newly developed dispensing and measuring methods enable the same measurement accuracy with only 1/10 the reagent quantity of existing systems 10 mL (CODA-500) 1/10 sample quantity= 100 mL (CODA-200: existing systems) Reagent delivery service eliminates the need for troublesome reagent mixing; simply replace the tanks Please read the operation manual before using this product to assure safe and proper handling of the product. �The specifications, appearance or other aspects of products in this catalog are subject to change without notice. �Please contact us with enquiries concerning further details on the products in this catalog. �The color of the actual products may differ from the color pictured in this catalog due to printing limitations. �It is strictly forbidden to copy the content of this catalog in part or in full. �The screen displays shown on products in this catalog have been inserted into the photographs through compositing. �All brand names, product names and service names in this catalog are trademarks or registered trademarks of their respective companies. http://www.horiba.com � HORIBA, Ltd. Head Office 2 Miyanohigashi, Kisshoin Minami-ku, Kyoto, Japan Phone: 81 (75) 313-8121 Fax: 81 (75) 321-5725 e-mail: [email protected] Tokyo Sales Office Kanda-Awaji-cho Nichome Building 2-6, Awaji-cho, Kanda, Chiyoda-ku, Tokyo, Japan Phone: 81 (3) 6206-4721 Fax: 81 (3) 6206-4730 � HORIBA Instruments (Singapore) Pte Ltd. Head Office Hanoi Office 10, Ubi Crescent #05-12 Unit 10, 4 Floor, CMC tower, Lobby B Ubi Techpark Duy Tan Street, Dich Vong Singapore 408564 Hau Ward, Cau Giay district, Phone: 65 (6) 745-8300 Hanoi, Vietnam Fax: 65 (6) 745-8155 Phone: 84 (4) 3795-8552 Fax: 84 (4) 3795-8553 Color tubes prevent erroneous connection of reagents � HORIBA Instruments Brasil, Ltda. Rua:Presbitero Plinio Alves de Souza, 645, Loteamento Polo Multivias Barirro Medeiros - Jundiai Sao Paulo CFP 13.212-181 Brazil Phone: 55 (11) 55 45 1500 Fax: 55 (11) 55 45 1570 � HORIBA UK Limited Northampton Office Kyoto Close Moulton Park, Northampton NN3 6FL, UK Phone: 44 (1604) 542-500 Fax: 44 (1604) 542-699 � HORIBA (China) Trading Co., Ltd. Beijing Office Shanghai Office Unit D, 1F, Building A, Synnex Room 1801, SK Tower, Tower 1 No.6 Jia, International Park, 1068 Jianguomenwai Ave., West Tianshan Road, Chaoyang District, Beijing, Shanghai, 200335 China 100022 China Phone: 86 (21) 6289-6060 Phone: 86 (10) 8567-9966 Fax: 86 (21) 6289-5553 Fax: 86 (10) 8567-9066 � HORIBA Korea Ltd. 10, Dogok-Ro, 6-Gil, Gangnam-Gu, Seoul, 135-860, Korea Phone: 82 (2) 753-7911 Fax: 82 (2) 756-4972 � PT HORIBA Indonesia Jl.Jalur Sutera Blok 20a, No.16-17, Kel.Kunciran, Kecamatan Pinang Tangerang - 15144 Phone: 62 (21) 3044-8525 Fax:62 (21) 3044-8521 � HORIBA India Private Limited Delhi Office Pune Office 246, Okhla Industrial Estate, 502, 5th Floor, Purushottam Phase 3 New Delhi - 110020, Plaza, Baner Road, Baner, India Pune - 411045 India Phone: 91 (11) 4646-5000 Phone: 91 (20) 4076-6000 Fax: 91 (11) 4646-5020 Fax: 91 (20) 4076-6010 � HORIBA Instruments Incorporated Alvin, TX Office Irvine Office 5318 W.FM517 Rd, Alvin, 9755 Research Drive, TX 77511, U.S.A Irvine, CA 92618, U.S.A. Phone: 1 (281) 482- 4334 Phone: 1 (949) 250-4811 Fax: 1 (281) 614-0303 Fax: 1 (949) 250-0924 � HORIBA (Austria) GmbH Kaplanstrasse 5 A-3430 Tulln, Austria Phone: 43 (2272) 65225 Fax: 43 (2272) 65230 � HORIBA Europe GmbH Head Office Hans-Mess-Str.6 D-61440 Oberursel Germany Phone: 49 (6172) 1396-0 Fax: 49 (6172) 1373-85 HORIBA Czech Prumyslova 7, CZ-10200 Praha 10, Czech Republic Phone: 420 (2) 460-392-65 � HORIBA France Sarl 12. Av des Tropiques Hightec Sud, F-91955 Les Ulis, France Phone: 33 (1) 69-29-96-23 Fax: 33 (1) 69-29-95-77 Reduced Running Costs Requires Only

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.