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COD

Y552-B UV COD sensor calibration

Writer: admin Time:2024-03-01 14:26:08 Browse:158℃

Y552-B COD Sensor Calibration

Required equipments and raw materials
required equipments:
three 250ml brown bottles, one 1L brown bottles, one power adapter, one USB converter, 10m cable.
raw materials: 150mg/L standard solution, 450mg/L standard solution, distilled water or deionized water.

COD.jpg

Calibration steps
There are two methods of user calibration for the COD sensor: 1-point calibration and 2-points calibration.
1-point calibration was done in 150mg/L standard solution, 2-points calibration was done in 150mg/L and 450mg/L standard solution.

1-point calibration step (change the K value)

微信截图_20240301161558.jpg

Step 1:Put the COD sensor into deionised water. Open the SmartPC software and click "self-calibration". Wait for the self-calibration value to stabilize.

Step 2:Then put the COD sensor into 150mg/l standard solution, click "1 Point". Wait for the 1 point calibration value to stabilize.

2-points calibration step (change the K and B values)

微信截图_20240301161847.jpg

Step 1:Put the COD sensor into deionised water. Open the SmartPC software and click "self-calibration". Wait for the self-calibration value to stabilize.

Step 2:Then put the COD sensor into 150mg/l standard solution, click "2 Point". Wait for the calibration value to stabilize in the first solution.

Step 3:Then put the COD sensor into 450mg/l standard solution, Wait for thecalibration value to stabilize in the second solution.

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