Ø Introduction

This product utilizes sealed catalytic digestion followed by colorimetric measurement. The instrument adopts advanced cold light source, narrowband interference technology, and microcomputer automatic data processing to directly display the COD (mg/L) value of the sample. This instrument is widely used in environmental monitoring, sewage treatment, colleges, research institutions, and other departments;

Ø Main Features

l The separation of the measuring instrument and the digestion instrument does not affect the stability of the optical system.

l The measuring instrument is a cold light source and narrowband interferometric optical system with good optical stability.

l The digestion instrument has PID automatic temperature control and timing, with high accuracy.

l The digestion temperature and time can be infinitely set for other purposes.

l It can save 10 standard curves and 999 measured values each, without losing them when powered off.

l LCDLarge screen LCD display, easy and intuitive operation.

l Equipped with factory working curve recovery function.

l Printing function: It can print test records immediately or query records for printing.

l USBInterface, capable of connecting to a computer.

Ø Specification

Measurement range:（5～2000）mg/L(Excess range can be measured after dilution)

Indication error: ≤± 5%

Repeatability: ≤ 3%

Anti chlorine interference: ≤ 2000mg/L

Temperature control system: adjustable from room temperature to 180 ℃, with a digestion temperature of 165 ℃

Temperature control accuracy: ± 0.5 ℃

Dissolving time: 15 minutes

Optical stability: The instrument's absorbance value drifts less than 0.002A within 20 minutes

Batch processing capacity: 16 water samples

Environmental temperature: 5-40 ℃

Relative humidity: ≤ 85%

Dimensions: 340mm × 250mm × 130mm Dissolver 216mm × 320mm × 146mm

Weight: 4kg for the main unit, 6kg for the digestion instrument

Power supply: AC (220 ± 22) V; (50 ± 0.5) Hz

Power consumption: Host<10W, Dissolver<500W