AQUA water quality measuring device COD automatic measuring device COD-3100
Anatec Yanaco Co., Ltd.
About This Product
An automated device that measures COD (Chemical Oxygen Consumption), an important parameter for knowing the water quality of river water or industrial wastewater, based on the Japanese Industrial Standard JIS K0102 (Industrial Wastewater Testing Method) and Sewage Testing Method. is. We have further evolved the COD automatic measuring device, which has a proven track record of high reliability and stability, and are now delivering the "COD-3100" as a new model that meets user needs. While retaining the same maintainability and measurement performance as before, the amount of cleaning water used has been reduced to approximately 1/20.
■Features
・Since measurements can be made under the same temperature conditions as the JIS method, the measured values have a high correlation with the values obtained by the specified measurement method. Additionally, controlling the heating temperature eliminates the need for cooling water, reducing tap water consumption to approximately 1/20 compared to conventional methods.
・The end point is detected using a constant voltage method and polarization potential difference method using twin platinum electrodes that can differentially detect redox reactions, allowing accurate end point detection at all times without being affected by the properties of the sample.
- Samples are sampled by negative pressure suction from a sample water tank with a built-in filtration filter. In addition, by performing backflow cleaning using the sample and air, there is no sample remaining inside the piping, preventing dirt from adhering to it. Problems caused by samples containing turbidity components such as SS (flow path blockage, etc.) and maintenance are reduced, making it possible to maintain long-term performance.
■Repeatability (with standard solution)
・Full scale ±1% (for measurement range 20mg/L)
・Full scale ±2% (for measurement ranges exceeding 20mg/L and below 200mg/L)
・Full scale ±3% (when measuring range exceeds 200mg/L)
*For two-step dilution measurement, full scale ±4%...Option
■Zero drift/span drift
・Both zero and span drift (in 24 hours)
・Full scale ±3% (for measurement range 20mg/L to 200mg/L or less)
・Full scale ±4% (when measuring range exceeds 200mg/L)
(Full scale ±5% for two-step dilution measurement)
■Installation space
Maintenance space of 1m in front and approximately 0.6m in rear is required.
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Product
AQUA water quality measuring device COD automatic measuring device COD-3100
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Handling Company
Anatec Yanaco Co., Ltd.
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Categories
1 Models of AQUA water quality measuring device COD automatic measuring device COD-3100
| Product Image | Part Number | Price (excluding tax) | Dilution/washing water conditions | Display | End point detection | External dimensions | External input/output 1 | External input/output 2 | External input/output 3 | External input/output 4 | External input/output 5 | Ground | Heating method | Installation conditions | Mass | Measurement method: Alkaline potassium permanganate method | Measurement method: Sulfuric acid acid potassium permanganate method | Measurement period | Measuring range | Number of samples | Piping diameter | Power consumption | Power supply | Printed content | Printing method | Reagent consumption: Acid method (no silver nitrate added) | Reagent consumption: Acid method (silver nitrate addition) | Reagent consumption: alkaline method | Reagent replenishment | Sample conditions | Saved data | Titration method |
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COD-3100 |
Available upon quote |
Tap water or purified water (less variation in COD value) Water temperature: 2~35℃ Pressure: 0.1~0.4MPa Usage amount: 1.5L/measurement (for cleaning and dilution) |
7 inch lcd display | End point differential detection method of redox potential (galvanostatic polarization potentiometric method) | (W) 600 × (D) 600 × (H) 1,600mm (channel base type) | Measured value voltage output DC0.000~1.000V within ±0.005V (non-insulated) |
Measured value current output DC4~20mA±0.08mA (insulated) Load resistance 500Ω or less *Equipped with 1 output as standard Measured value output is a hold signal (until next measured value output) |
Alarm contact output No-voltage A contact output (1A or less when contact capacity is 30V DC) Concentration upper limit alarm Sample cutting *optional Washing water cutoff Instrument abnormality End point detection Power off |
Maintenance contact output (MAINT.) No-voltage a contact output (contact capacity 1A or less when DC30V) | External start input No-voltage A contact input (1 second or more) |
Class D grounding (separate from power grounding) (No sudden voltage fluctuations) |
Boiling water circulation method (oil circulation method available as an option) |
Indoor installation (installed in a building as close as possible to the water sampling point, avoiding direct sunlight) Temperature: 2~40℃ Humidity: 85%RH or less Vibration: General factory level Atmosphere: A place free of corrosive gases (H2S/SO2/NH3/CL2, etc.) |
Approximately 145kg | Alkaline method: When the chloride ion concentration of the sample (+ dilution water) is approximately 2,000 mg/L or more |
Acidic method (no silver nitrate added): When the chloride ion concentration is low and the catalytic effect of silver salt is less affected Acidic method (silver nitrate addition): When the chloride ion concentration of the sample (+ dilution water) is approximately 2000 mg/L or less |
Shortest measurement cycle: approximately 45 minutes Repeat measurements, arbitrary measurements, and measurement starts using external contact signals are also possible. |
Specify one range from 0~20,30,40,50,100,200,300,400mg/L (0~500mg/L or more is possible as an option) | 1 sample (2 or more samples available as an option) |
Tap water inlet: Rp1/2 (valve socket nominal diameter 13A) Drain outlet: Rp1 (valve socket nominal diameter 25A) Sample inlet: Rc1/8 (attached union) |
Approximately 700VA (at maximum load) | AC100V 50/60Hz (built-in earth leakage breaker) | Setting values, measured values, manual analysis conversion values (according to y=a+bx settings), measured value bar graphs, calibration values, daily reports, power off, various alarms/abnormal location individual marks printing, etc. (forward/reverse order printing selectable) ) | Graphic printer thermal paper (paper width 58mm) (automatic winding mechanism included as standard) |
Potassium permanganate solution 13.5mL Sodium oxalate solution 10mL Sulfuric acid solution 10mL |
Potassium permanganate solution 13.5mL Sodium oxalate solution 10mL Sulfuric acid solution 10mL Silver sulfate solution 5mL Ammonia water approx. 170mL |
Potassium permanganate solution 13.5mL Sodium oxalate solution 10mL Sulfuric acid solution 10mL Sodium hydroxide solution 10mL |
Continuous measurement is possible for 14 days without reagent replenishment with a measurement cycle of 1 hour. |
Water temperature: 2~40℃ Pressure: 0.02~0.05MPa Flow rate: 1~5L/min |
Measurement data: Approximately 6 months End point history data: about 1 month Alarm history data: Latest 10 items |
Slow injection continuous titration method using burette |
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About Company Handling This Product
- Japan