Introduction to AQ3140 COD measuring instrument:

AQ3140 COD measuring instrumentReliable, stable, and capable of accurately measuring COD values in water bodies, it is an ideal choice for laboratory and on-site COD measurements. The AQ3140 COD measuring instrument adopts the method of potassium dichromate oxidation optical measurement of absorbance to measure COD concentration. The measured COD concentration is based on the linear relationship between absorbance and concentration, and the final chemical oxygen demand value is the amount of oxygen consumed by all organic matter in the oxidized water. The maximum measurement range of AQ3140 COD measuring instrument is 0-15000mg/L. This product adopts advanced design, combined with Orion AQUAFast pre made COD reagent, with precise measurement results and extremely high repeatability.

Functional features:

Dual LED
IP67 protection design
Can be calibrated to national or industry standards (such as NIST or ISO)
Can improve calibration for very specific measurement ranges
The measurement program can target any known interference present in the sample

Technical parameters:

Measurement parameters COD, chemical oxygen demand
Measurement range: Low range: 0-150 mg/L 02 Medium range: 0-1500 mg/L 02 High range: 0-15000 mg/L 02
Dual wavelength type, automatic wavelength selection, direct reading and measurement
Light source LED
Wavelength 430nm, 610nm
Wavelength accuracy ± 1nm
The accuracy of the photometer is 3% FS (T=20 ℃ -25 ℃)
Resolution of photometer 0.01 A
Power supply: 4 AAA (No. 7) batteries
17 hours of standby time and operating time, or connected while the display screen is turned off
Continuous mode measurement 5000 times
The automatic shutdown function is available, which will automatically shut down 10 minutes after the last button press
Backlight LCD display
Storage with 16 built-in groups, including time and date
Real time display of time and date
Calibrate user calibration and factory calibration, reset to factory calibration
Host size 155x75x35mm (length x width x height)
The weight of the host is approximately 260 grams (including battery)
Operating environment temperature: 5-40 ℃, relative humidity: 30-90% (no condensation)
Certification CE
Reagent type: Prefabricated digestion tube
Protection level IP6