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Digital Display Salt Density Tester Recommended by DARUI Electric |
GB/T 5582—93 "Pollution Classes of External Insulation for High-Voltage Power Equipment"
Terminology Explanation
Equivalent Salt Deposit Density: refers to the solute density of the contaminant solution equivalent to the same conductivity of sodium chloride solution, usually expressed in Kg/ .
Creepage Distance to Voltage Ratio of Insulator: the total creepage distance L of the insulator divided by the product of the test voltage and ; it is usually expressed in mm/kV.
Pollution Layer: the conductive electrolytic layer on the surface of the insulator composed of salt and inert materials.
Salt Deposit Density (SDD): the amount of salt deposited on a given surface of the insulator (metal parts and cementing materials are not included in this surface) divided by the area of that surface; it is usually expressed in mg/ .
Introduction
SDMD-II, also known as Direct-Reading Equivalent Salt Density Tester (Salt Density Meter), is specially designed for testing the equivalent salt density of insulators. The system has built-in calculation formulas for equivalent salt density of insulators, making readings intuitive. It uses a Chinese menu for simple operation. The large-screen LCD display shows all parameters and results at a glance. Built-in large-capacity lithium battery facilitates field testing.
The instrument complies with the provisions and requirements of GB/T 16434—1996 "Environmental Pollution Classification and External Insulation Selection for High-Voltage Overhead Lines and Power Plants, Substations", and is suitable for salt density testing of external insulation equipment in places such as high-voltage overhead lines, power plants, and substations.
Performance Indicators
Technical Parameters:
●Measurement Range
Electrode constant 1 Conductivity 0.1μs/cm~20ms/cm
Electrode constant 10 Conductivity 2ms/cm~200ms/cm
Temperature Measurement Range Temperature 0℃～100℃
●Measurement Error
Conductivity 1% (Class 1) Temperature ±0.1℃
Equivalent Salt Deposit Density 1% (Class 1)
Note: When testing low-concentration solutions, choose an electrode with a small electrode constant K; when testing high-concentration solutions, choose an electrode with a large electrode constant K. For detailed selection, refer to the random accessories section.
4.3 Display Output Mode
A. LCD displays measurement results.
B. Measurement data can be directly output through a computer.
C. Upload to computer via data cable for processing.
4.4 Operating Conditions
Ambient temperature: 0℃ ～ 50℃
