Chemical Oxygen Demand

Model: WAOL 2000-COD

　　Product Description, Technical Parameters, and Configuration

　　Instrument Introduction

The COD online water quality analyzer is based on the national standard analysis method, with low sample and reagent consumption, high degree of automation, and the ability to automatically monitor COD in water bodies without human supervision for a long time.

　　Performance Characteristics

The pre-treatment of water samples adopts a maintenance free design, with a maintenance cycle exceeding six months

Equipped with automatic and manual calibration functions, the instrument can automatically complete calibration work every day

Equipped with automatic recovery function for incoming calls after power failure

Can automatically control the water sampling work of various water pumps

Equipped with instrument malfunction, no reagent, no water sample collected, numerical exceeding standard, automatic alarm and automatic protection functions

The measurement methods can be set: interval measurement, continuous measurement, and whole point measurement

All functions of the instrument can be operated through a user-friendly human-machine interface on the touch screen. The instrument calibration, parameter recording, and alarm value analysis time can be set on the upper computer through remote control. Remote diagnosis of instrument faults and remote modification of programs are also possible

The instrument can store operational data for more than one year

The device has a simple structure, easy operation, long lifespan, and low failure rate

Imported global brand electrical components and maintenance free sampling systems ensure the long-term reliable operation of the instrument

Automatic leakage alarm function, when a reagent leak occurs, the instrument will automatically sound an alarm, prompting the user to perform maintenance

　　Technical Specifications

Model: WAOL 2000-COD

Measurement principle: high temperature and high pressure digestion, colorimetric method

Measurement interval: programmable

Measurement time: ≤ 20 minutes

Measurement range: 0-1000mg/L (expandable)

Accuracy: ≤ 10%

Repeatability: ≤ 3%

Signal output: Standard 4-20mA analog output; RS232/RS485

Alarm: 1 high limit alarm, 1 system

Medication replacement: 4-5 weeks, depending on operating temperature

Sample and scrap transportation: no pressure; Sample temperature; 10-30℃

Environmental temperature: 5-40 ℃

Power supply: 50Hz 220V

Weight: 30kg

Power: 100W

Size: 500mm × 780mm × 320mm

Certification: CE

Application field

It can be widely used in water environment automatic monitoring stations, water treatment plants, regional water boundary points, water quality analysis rooms, monitoring of COD content in discharged wastewater and sewage, and monitoring of water environment by environmental regulatory agencies at all levels.