Online COD detector: The sewage discharge outlet of the sewage treatment plant meets the national standard
Category:
Instrumentation/Analytical instruments/Water quality analyzer
Model:
CODcr
Brand:
Qingdao Lubo Jianye Environmental Protection Techn
model:
CODcr
Installation method:
online
Processing & Customization:
yes
measurement range:
10-5000 mg/L COD
measurement accuracy:
When ≥ 100mg/L, not exceeding ± 10%
power supply voltage:
AC220±10% V，50±10% Hz，5A
resolution:
±10%
weight:
About 40
Place of Origin:
Qingdao
manufacturer:
Qingdao Road Expo
Retail Price
17,000.00USD
重量
kg
- Product Description
-
model CODcr
Installation method online
Processing & Customization yes
measurement range 10-5000 mg/L COD
measurement accuracy When ≥ 100mg/L, not exceeding ± 10%
power supply voltage AC220±10% V，50±10% Hz，5A
resolution ±10%
weight About 40
Place of Origin Qingdao
manufacturer Qingdao Road Expo
Description :
Qingdao Lubo Factory direct supply, welcome to call for details, Product Manager: Fu Yajian
Online CODcr automatic analysis and detection instrument
Chemical Oxygen Demand (COD) refers to the amount of oxidizing agent consumed by reducing substances in water that are easily oxidized by strong oxidizing agents, converted to mg/L. Chemical oxygen demand reflects the degree of pollution caused by reducing substances in water, including organic matter, sub salts, ferrous salts, sulfides, etc. COD is one of the indicators for total emissions in China, which refers to the amount of oxidant consumed when treating water samples as an oxidant under strong acid and heating conditions, expressed in mg/L of oxygen.
Product Introduction
The chemical oxygen demand (COD) online analyzer is a fully automatic COD online analyzer based on the national standard method - determination of chemical oxygen demand using the dichromate method. The mixed solution formed by water samples under high temperature and high pressure environment (as a catalyst to oxidize linear aliphatic compounds more fully) undergoes redox reactions inside, during which Cr (VI) in the solution is reduced to Cr (III), resulting in a change in the color of the mixed solution. The degree of color change in the solution corresponds to the chemical oxygen demand (COD) of the water sample, and the instrument can directly measure the COD value of the water sample through optical signals. The chloride ions in the water sample are the main interfering substances, and the interference of chlorine can be eliminated by adding mercury content to chelate the chloride ions in the water sample.
Widely used in various fields such as sewage treatment plants, washing plants, chemical wastewater discharge outlets, industrial production process water, and industrial and municipal wastewater treatment.
execution standard
GB11914-1989 "Determination of Chemical Oxygen Demand for Water Quality"
HJ/T 377-2007 "Chemical Oxygen Demand (CODcr) Water Quality Online Automatic Monitoring Instrument"
Technical Specifications
Method basis
Determination of Chemical Oxygen Demand
measurement range
10-5000 mg/L COD
accuracy
When ≥ 100mg/L, not exceeding ± 10%; When<100mg/L, not exceeding ± 8mg/L
repetitiveness
When ≥ 100mg/L, not exceeding ± 10%; When it is less than 100mg/L, it should not exceed ± 6mg/L.
measurement period
The minimum measurement cycle is 20 minutes, and according to the actual water sample, the digestion time can be modified arbitrarily within 5-120 minutes
sampling period
Time interval (adjustable from 10 to 9999 minutes) and hourly measurement mode
calibration cycle
Adjustable at any interval and time from 1 to 99 days
maintenance cycle
Usually once a month, about 30 minutes each time
output
RS-232, 4-20mA (optional)
Environmental Requirements
For indoor environments with adjustable temperature, it is recommended to have a temperature range of+5-28 ℃; Humidity ≤ 90% (non condensing)
power supply
AC220±10% V，50±10% Hz，5A
AfterSalesService :
Key words:- Online COD detector
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