COD digester for high chlorine wastewater

COD digester for high chlorine wastewaterFollow the environmental protection industry standard of the People's Republic of China - Determination of Chemical Oxygen Demand for High Chlorine Wastewater - Chlorine Calibration Method.

The instrument adopts microcomputer technology for timed control of the heating electric furnace, which can simultaneously heat 8 conical bottle reflux devices. To achieve the goals of energy conservation, reducing power load, and improving efficiency.

The high chlorine COD digester adopts a glass burr reflux tube instead of a spherical reflux tube, and uses air cooling technology instead of tap water cooling, which can save water and standardize the instrument. The instrument can simultaneously analyze 6 high chlorine samples and 2 blank samples. The chemical solution preparation, operation, and COD calculation of the instrument shall comply with HJ/T 70-2001.

Technical Specifications

1. Measurement range: 0-700mg/L, 0-7000mg/L (diluted water sample)

2. Measurement time: no more than 2 hours

3. Measurement error: Potassium hydrogen phthalate standard solution (500mg/L), relative standard deviation not exceeding 5.0%

4. Industrial organic wastewater (500mg/L), with a relative standard deviation not exceeding 8.0%

5. Environmental temperature: 5-40 ℃

6. Heating power: 1300W (AC 220V ± 22V, 50HZ)

COD digester for high chlorine wastewaterInstructions for using the front panel buttons

1. The instrument panel has five buttons, namely the start button, up button, settings button, down button, and fan button.

2. There are a total of 6 indicator lights on the instrument panel, including the working indicator light, time indicator light, temperature indicator light, power indicator light, start indicator light, and fan indicator light.

3. After resetting the instrument, the fan is in the on state. The instrument fan can be turned on and off at any time. Press it once to turn it on, press it again to turn it off, and switch it on and off repeatedly.

4. The start button can only be pressed when the work indicator light is on. After resetting the instrument, the heating device is in a stop heating state. Press the start button once to start heating the instrument, and then press the start button again to stop heating the instrument. Repeat the switch.

5. Press the setting button (if the instrument is in a heating state, it will stop heating), and the 6 indicator lights will light up alternately. When the instrument's working light is on, the start button can be pressed, but the up and down buttons are invalid. When the time indicator light is on, the heating time can be modified by pressing the up and down keys (once to add or subtract 10 minutes), and set to 150 minutes. When the temperature indicator light is on, the heating temperature can be modified by pressing the up and down keys (once to add or subtract 10 ℃) to set 410 ℃. When the power indicator light is on, the heating power can be modified by pressing the up and down keys (once to increase or decrease by 10%),.

6. The instrument's time, temperature, and power parameters are automatically saved after being set. Automatically call upon next startup, no need to set it up again.

Instructions for using high chlorine COD digester

Before powering on the instrument, as much distilled water as possible should be added from the water injection port of the reflux pipe to ensure cooling effect.