Energy-saving Heating Digester/Air-cooled COD Digester/COD Digestion Instrument
Model: HAD/WD-2
The HAD/WD-2 air-cooled COD digester uses far-infrared electric heaters for heating and utilizes air condensation to replace water condensation in the reflux device. This instrument employs microcomputer timing to control the processes of boiling, heat preservation, cooling, and stopping work automatically.
High-pressure Reactor Vertical Flow Purification Workbench
This device is widely used for the digestion of chemical oxygen demand samples in various industries. Thanks to the intelligent temperature control by the microcomputer, the samples are kept in a micro-boiling state, resulting in minimal evaporation and high air-cooled reflux rate, which ensures the accuracy of chemical oxygen demand measurements while saving more than 35% energy.
Variable Speed Multi-purpose Oscillator Taper Shank Twist Drill
This device features high thermal efficiency, water and electricity savings, easy installation, simple operation, and low failure rate, meeting relevant technical requirements of analytical standards.
Except for the heater, the method principle and analysis steps are consistent with the national standard analysis method (GB11914-89), ensuring that the precision and accuracy are not different from the standard analysis methods.
This method has been included in the "Monitoring and Analysis Methods for Water and Wastewater" (Fourth Edition) (Supplementary Edition)
Technical Specifications
1. Sample preheating boiling time: approximately 15 minutes (adjustable from 10 to 40 minutes);
2. Automatic heat preservation time: 2 hours;
Combined Air Supply Unit Plastic Bending Test Machine Woven Bag Tension Tester Environmental Electric Heating Mantle FE30K
3. Air cooling delay time: 15 minutes delay (adjustable from 10 to 40 minutes);
4. Sample reflux rate > 95%;
5. Measurement error: Potassium Hydrogen Phthalate standard solution (500 mg/L), relative standard deviation ≤ 5%; Industrial organic wastewater (500 mg/L), relative standard deviation ≤ 8%;
6. Ambient temperature: -5 to 50°C;
7. Number of samples heated simultaneously: 6;
8. Heating power: 2000W (AC220V), actual power 1200W;
9. Instrument dimensions: Length*Width*Height (mm): 270*395*565
10. Weight: 15Kg
