Conductivity Online Monitor

Product Overview:

The conductivity online monitor is a commonly used instrument, mainly used to accurately measure the conductivity of liquid media, and is widely used in industry, agriculture, scientific research, environmental protection and other fields.

Measurement principle:

The conductivity of water is the reciprocal of the resistance of water, which is usually used to measure water quality. Conductivity is the ability of an object to conduct current. The microcomputer circuit built into the controller converts the conductivity value by measuring the concentration of electrolytes present in water. This indicator is often used to infer the total concentration or salt content of ions in water.

Standard solution configuration:

1410us/cm conductivity calibration solution

Preparation: Place the first-level potassium chloride reagent in a drying oven at a constant temperature of 220 degrees Celsius for 2 hours, weigh 0.744g and place it in a container, and dissolve the reagent in 1000mL of distilled water or deionized water with a conductivity lower than 0.2uS/cm and a constant temperature of 20 degrees Celsius

Conductivity calibration:

Put the conductivity electrode in a low-concentration standard solution, enter the calibration menu-low point calibration, wait for stabilization for about 3 minutes, enter the conductivity value of this standard solution, and press ENTER to confirm and store.

Put the conductivity electrode in a high-concentration standard solution, enter the calibration menu-high point calibration, wait for stabilization, enter the conductivity value of this standard solution, and press ENTER to confirm and store.

The system automatically calculates the parameters. If there is still an error after calibration, please recalibrate.

Instrument features:

❊ Dot matrix LCD screen display

❊ Intelligent menu operation

❊ Multiple automatic calibration functions

❊ Multiple signal output modes

❊ Manual and automatic temperature compensation

❊ Three sets of relay control switches

❊ High limit, low limit, hysteresis control

❊ Display conductivity, TDS, temperature, current, etc. on the same interface

Technical parameters:

Product name: Online conductivity meter/resistivity meter/TDS meter/salinity meter (used with different electrodes, please note when placing an order)

Product model:

Measuring range: Conductivity: 0-30mS/cm TDS: 0-25g/L Temperature: 0-80℃

(The range depends on the electrode, and other ranges can match different electrodes)

Measurement accuracy: Conductivity/TDS/salinity/resistivity: ±1%F.S Temperature: ±0.3℃

Temperature compensation: automatic or manual

Resolution: Conductivity: 0.01us/cm; 0.01ms/cm; TDS: 0.01mg/L; Salinity: 0.01ppt; Resistivity: 0.01KΩ/cm; 0.01MΩ/cm Temperature: ±0.1℃

Stability: Conductivity/TDS/Salinity/Resistivity: ≤0.2%F.S/24h

Relay: Three groups 5A 240VAC/5A 28VDC or 120VAC

Power supply: 85～265VAC or 9～36VDC, power: ≤3W

Current output: 2-way 4-20mA as standard

Communication output: RS485 Modbus RTU as standard

Dimensions: 215*125*80mm

Opening size: -

Protection level: IP65

Installation method: wall-mounted

Instrument weight: 1.5kg

Ambient temperature: -10～60℃; Relative humidity: ≤90%; No strong magnetic field interference around except the earth's magnetic field

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