The standard COD digestion device only has the function of heating and countdown. The heating plate is an ordinary electric furnace plate of silicon carbide. The size is 20x30cm. It is the most common heating device. The cooling is a special condenser tube plus single fan air cooling. As long as the power of the fan, the material of the electric furnace board, the power of the heating wire, and the number of digestion samples, there is no difference.
Standard COD digestion device, which is an upgraded product of the standard COD digestion device. The heating plate is changed to a special custom insulation material to press and sinter the molding. The crystallized glass plate is used to heat the mesa. Dimensions: 42 x 22cm. The overall structure of the heating plate is separated. Heating, easy maintenance, and dual fan cooling, cooling effect is good, can simultaneously digest 8 250ml Erlenmeyer flask or 12 300ml cylindrical bottle samples.
The COD temperature heater is designed for constant temperature heating. It heats 12 cylindrical bottles with aluminum blocks, and uses special long cooling tubes to cool naturally.
By comparison, each has its own strengths and comprehensive structure and utility of various instruments, we have upgraded on the basis of the standard COD digestion device, and the KHCOD-8K has been changed to liquid display in Chinese, displaying standby, heating, cooling, and display heating. The actual temperature of the board table shows the countdown of the heating time at a glance. At the same time, the stepless voltage regulation heating function is added to the circuit. This guarantees that customers can have the best heating effect regardless of seasons.
CT For Three-phase Electricity Meters
Our company`s current transformers have high precision,wide range,small volume and good linearity that can be used to the field of electronic watt-hour meter, electric energy metering, electronic detection.
Performance
â—Power frequency insulation strength:The insulation between the primary winding and the secondary winding and the ground part of the CT can bear 4kV power frequency voltage for 1minute
â—Interturn insulation strength:The secondary open circuit, the primary winding through the rated current 1min, no inter-turn damage in the transformer
â—The deviation is better than the industry standards and national standards
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