Ø Introduction

This instrument features a liquid crystal display, a separate design for the digester and host, built-in curves, a built-in printer, and a USB interface for uploading data. It is widely used in environmental monitoring, sewage treatment, large, medium, and small water plants, industrial and mining enterprises, domestic or industrial water use, universities, 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, timely and high accuracy.

l Simple and time-saving operation. Dissolving colorimetry does not require changing the tube.

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

l 10 standard curves and 99 measured values of COD, ammonia nitrogen, and total phosphorus can be stored separately without loss during power outage.

l LEDLarge screen LCD display, easy and intuitive operation.

l Equipped with factory working curve recovery function.

l Equipped with printing function, it can immediately print or query test records for printing.

l USBInterface, capable of connecting to a computer.

Ø Main Technical Performance

Measurement range: (beyond dilution determination)

COD：5～2000mg/L； Ammonia nitrogen: 0.02-25mg/L Total phosphorus: 0.00-10mg/L

Indication error: COD: ≤± 5%; Ammonia nitrogen: ≤± 3%; Total phosphorus: ≤± 5%

Repeatability: ≤ 3%

Anti chlorine interference: ≤~2000mg/L (COD determination)

Temperature control system: The room temperature can be set at 180 ℃, the COD digestion temperature is 165 ℃, and the total phosphorus digestion temperature is 120 ℃.

Temperature control accuracy: ± 0.5 ℃

Temperature control time: adjustable from 1 to 999 minutes

Dissolving time: COD is 15 minutes, total phosphorus is 30 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%;

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

Dimensions: Measuring instrument 340mm × 250mm × 130mm

Dissolver (DIS-16 type) 216mm × 320mm × 146mm

Weight: 4kg mainframe, 6kg digestion apparatus

Power consumption:<500W