COD analyzer (portable)Using a rapid closed catalytic digestion method (including photometric method), potassium dichromate was used as the oxidant, and a 610 nanometer monochromatic light source was used to determine the concentration of hexavalent chromium reduced to trivalent chromium, thus completing the determination of COD. Use imported specialized quartz colorimetric tubes instead of colorimetric dishes or cells, heat and react in the same container before performing colorimetric operations. Reduce the amount of reagents and lower the instrument failure rate.
The ZQ35-CM-03 portable measuring instrument and ZQ35-03 portable heater are new water quality monitoring instruments that are compact and energy-saving. The instrument has been designed for miniaturization, making it easy to carry. The heating device uses technology to achieve low-power heating, and the power consumption of the heater does not exceed 90W. The instrument adopts digital processing technology to directly display measurement results, making it easy and intuitive to use. Suitable for on-site monitoring and emergency monitoring in the wild. The instrument can be powered by a car cigarette lighter (~12V) plug or a portable battery produced by our company. The instrument can also be powered by a dedicated power converter in laboratories with~220V, achieving dual-use of AC and DC.

COD analyzer (portable)Specification
Zui low detection limit: 3mg/L
Detection range: 10-200mg/L low range
50-2500mg/L high range
Relative error: ± 5% low range
± 4% high range
Working temperature: 5-35 ℃
Weight: 1kg
Dimensions: 270 × 190 × 170 (mm)

Main technical indicators of heater
Temperature control range: 100-180 ℃
Temperature control accuracy: ± 2 ℃
Timing range: 10-199min
Timing accuracy: ± 20s (165 ℃)
Display mode: 5-digit LED
Working temperature: 5-35 ℃
Weight: 1.5Kg
Dimensions: 270 × 220 × 170 (mm)