Negele conductivity meter usage instructions

Negele conductivity meter method: Negee conductivity meter is a multi-range instrument that can meet the requirements of various applications from deionized water to seawater. The German negele conductivity meter provides automatic temperature compensation and a temperature coefficient, so it can be used to measure liquid samples with different temperature coefficients than water. The negele conductivity meter is available in three ranges and has an automatic range selection function that automatically selects the most appropriate range for detection.
The negele conductivity meter is a digital representation of the ability of a solution to conduct current. The conductivity of water has a certain relationship with the amount of inorganic acids, bases and salts contained in it. When their concentration is low, the conductivity increases with the increase of concentration. Therefore, this index is often used to estimate the total amount of ions in water. Concentration or salt content.
Water hardness unit conversion
Negele conductivity meter hardness unit ppm German hardness French hardness British hardness
1ppm = 1.000ppm 0.0560 0.1 0.0702
1 German hardness = 17.847ppm 1 1.7847 1.2521
1 French hardness = 10.000ppm 0.5603 1 0.7015
1 British hardness = 14.286ppm 0.7987 1.4285 1
Negele conductivity meter and water hardness
Negele's conductivity meter performance characteristics ● All Chinese display, friendly interface: all data, status and operation prompts are displayed in Chinese, there is no symbol or code defined by the manufacturer.
●Simple menu structure, text-based human-table dialogue: It is clearer and more convenient to use, and can be operated according to the prompts on the screen.
● Multi-parameter simultaneous display: Simultaneous display of conductivity, output current, temperature, time and status.
●Automatic compensation of (super) pure water: For ultrapure water, the automatic temperature compensation of conductivity at 25 °C is realized.
● Notepad function: faithfully record the operation of the instrument and the occurrence time of the alarm, which is easy to manage.
● History curve and digital recorder function: The secondary meter automatically stores the measurement data every 5 minutes, and can continuously store the conductivity for one month.
● Digital clock function: displays the current time and provides a time reference for the digital recorder function.
●Backlight function: It can be used in an environment with dim light or no light. It automatically adjusts the contrast to the clearest according to temperature changes.
● Anti-program flight: The watchdog program ensures that the instrument will not crash, which is the basic requirement of online instruments.
● Output current setting and checking function: Manual current source function, can check and arbitrarily set the output current value, which is convenient for detecting the recorder and the lower computer.
● Software setting current output mode: software selection is 0~10mA or 4~20mA output.
Negele conductivity meter usage
Conductivity meter is a kind of instrument suitable for precise measurement of various liquid media. Conductivity meter is mainly used to accurately measure the conductivity value of liquid medium. When equipped with the corresponding constant electrode, the conductivity of high purity water can be accurately measured. Can be widely used in drinking water and sewage, chemical, petrochemical, pulp and paper, food and beverage, sugar, steel, surface treatment, steam power and electronics, semiconductor, pharmaceutical industry.
1. Check if the pointer refers to zero. If you do not mean zero adjustment knob on the conductivity meter,
2. Adjust the conductivity meter to the calibration file and point the pointer to the maximum scale.
3. Adjust the knob according to the electrode constant and adjust to the measurement file during measurement.
Negele conductivity meter use precautions
1. The lead of the electrode should not be wet, otherwise it will not be measured.
2. High-purity water should be measured quickly after it is placed in the container, otherwise the conductivity will rise quickly because the CO2 in the air dissolves into the water and becomes carbonate ions.
3. The container containing the solution to be tested must be clean and free from ionic contamination.
Negele conductivity meter application field editing ● power plant - water treatment;
● Water plant and sewage plant - wastewater treatment;
● Papermaking - production process / wastewater treatment;
●Chemical refining - production process / wastewater treatment;
● metallurgy and mining - production process / wastewater treatment;
● food and beverage - production process / wastewater treatment;
● Pharmaceutical industry - biological reaction and fermentation / wastewater treatment;
● Semiconductor - production process / wastewater treatment / high purity water production.