CODCr fully automatic online analyzer Trescon COD-3250Introduction:

Measurement principle of Trescon COD-3250 automatic online analyzer CODCR
The mixed solution of samples and reagents undergoes complete dissolution at a high temperature of 175C, resulting in a change in the color of the solution. The degree of this change is related to the COI of the sample
Directly proportional. The optical system measures the absorbance values before and after changes, directly displaying the COD value of the sample

1. Typical applications
COD online monitoring of pollution sources, surface water, municipal sewage, and industrial wastewater

2. Performance advantages
2.1 Compliant with relevant national standards, using the classic potassium dichromate digestion spectrophotometric method
2.2 meters using negative pressure suction method, with no contact between the pump tube and the reagent/water sample, greatly extending the service life
2.3 Precise optical quantification system ensures accurate quantification of reagents and samples
2.4 The measurement interval can be flexibly set for easy operation
2.5 Has long-term stability and accuracy
2.6 Equipped with automatic calibration, diagnosis, and alarm functions
2.7 Touch screen operation

CODCr fully automatic online analyzer Trescon COD-3250Technical parameters:
Measurement principle: Classic potassium dichromate digestion spectrophotometric method
Measurement range: (20~1500)mgL
Accuracy: ≤ 10% of the measured value at 230mg/L< At 30mg/L, ≤ t5mg/L
Operating temperature: (5-40) ℃
Display: Touch screen
Communication interface: (4-20)mA; RS232; (RS485, MODBUS RTU optional)
Alarm output: optional high and low concentration limits, water shortage sample or system failure; Equipped with automatic or manual reset
Resolution: 0.1 mg/L
Minimum measurement cycle: 35min
Measurement interval: (35-999min adjustable point external trigger)
Calibration interval: (35~999) min, adjustable point external trigger
Power supply: (220 ± 22) VAC, (500.5)
Dimensions: 500mmx370mmx750mm (length x width x height)
1) Additional features: expandable to 5000mgL