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Brand Name : NANBEI
Model Number : COD-571
Certification : CE,ISO
Place of Origin : China
MOQ : 1set
Price : USD1000-USD1765/set
Payment Terms : TT, LC, Paypal, Western Union, MoneyGram…
Delivery Time : 7-10days
Product name : Colorimeter, Portable residual chlorine meter, oil moisture analyzer, Portable Precision Turbidimeter, online cod
Power supply : 220VAC, 3.7V 4000mAh Rechargeable Battery, AC 220V ± 10%, Four AA batteries, 50/60HZ
Measurement range : optical pathop), 10μg ~ 50 mg, 0-1000mg/L(COD), 0-20mg/L, 0~200NTU
Weight : 0.5kg, 50kg, 2kg, 3.5 Kg
Usage : automatic testing machine, water analysis
Indication error : ± 6%, ± 5%
Repeatability : ≤0.03, <1%(Deviation of D50 on National standard samples)
Indication stability : ≤ ± 0.3% FS
Chemical Oxygen Demand English Language Menu LCD Display ISO Certification
Features of NANBEI chemical oxygen demand :
u English language menu and LCD display for easy use
u It adopts dichromate colorimetric method.
u Direct reading of COD results and no need to analyze by other means such as titration.
u 2 point calibration (zero COD and full scale calibration)
u Measuring results can be viewed, deleted and printed. Up to 200 sets of measuring data
can be stored and it can be connected with TP-16 printer.
u It adopts digestion method of sealing reflux and can conduct simultaneous digestion of 21 samples for low energy consumption.
u The digestion temperature can be adjusted from ambient temperature to 165℃. Also, it is equipped with over temperature alarming system.
u The digestion time can be set from 0 to 120 min. It will be power off after response.

| Model Specification | COD-571 | |
| Range | COD | 0~1500mg/L | 
| Electrolysis current divide | — | |
| Accuracy | Basic accuracy | ≤150mg/L: ±8% reading ±1 mg/L; ≥150mg/L: ±8% reading | 
| Repeatability | 3% reading | |
| Stability | ±2% (reading )/15min | |
| Measuring Principle | Dichromate colorimetric method | |
| Digestion Method | Sealing reflux method(could dispelling 21 samples simultaneously) | |
| Digestion Temperature | Room-temperature~165℃ | |
| Digestion Time | 0~120min | |
| Calibration | Two-point calibration (zero and full scale calibration) | |
| Data Storage | 200 data with time-and-date stamp | |
| View, delete & print | Yes | |
| Display | LCD | |
| Power | AC(220±22)V, (50±1)Hz | |
| Dimension (mm),Weight(kg) | 270×280×125, 2 | |
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