6B-500A Tachymeter with all-in-one machine

This instrument digestion, measurement display integration, can accurately determine the chemical oxygen demand COD, ammonia nitrogen, total phosphorus (turbidity) indicators in a variety of water bodies. Can be widely used in tertiary institutions, research institutes, sewage treatment plants, environmental monitoring stations, petrochemical, paper, pharmaceutical, printing and dyeing, textile, leather, wine, dairy, electronics, municipal engineering and other industries.

Online Consulting

Online Message


  • Features
  • Technical Specifications
  • Standard Configuration
  • Data download


Technical Specifications

Standard Configuration

Data download

 -It uses big screen Chinese LCD display, and digestion, measuring display become integrated

-It can accurately test chemical oxygen demand (COD), ammonia nitrogen, total phosphorus (turbidity) indexes in various body of water

-It has memory of 100 curves, 15 standard curves, 85 extensive curves, and they all can be used in different environment, different waste water and other conditions

-As for the digestion of indoor temperature~200℃, the users can adjust by themselves according to requirement, which has more compatibility-the instrument can use national standard samples to calculate and store curve

-The built-in printer can print the current data and check historical data

-USB interface can connect the computer making online operation (optional)

-Cold light source, narrow band interference, and the light resource life is 100,000 hours

-Digestion power and load quantity can be adjusted automatically, and it also has intelligent constant temperature control and time delay

-It can adjust and store temperature and time at will

Measuring range

COD: 5-50mg/L 

            30-6000mg/L (subsection)

Ammonia nitrogen: 0.01 - 100mg/L (subsection)

Total phosphorus: 0.001 - 8mg/L (subsection)

Turbidity: 0-200NTU

Measuring error


Wavelength coverage


The number of curve

100 pieces

Data storage

Five million data



Batch sample

9 pieces/batches

Resist chlorine interference

{cl-} < 1200mg/L ; {cl-} < 4000mg

Temperature control range

Indoor temperature~200℃

The temperature of digestion


The time of digestion

10/30 minutes

Working power supply


Product size

360x280x 100mm



cooling bath frame, dedicated solid reagent, several dedicated reaction tubes, cuvette frame and semi-automatic filling injector


Internet of things WIFI customer platform management operating system