Conductivity Online Monitoring Device HM-SEC

Product Overview:

Conductivity online monitoring device is a commonly used instrument equipment, mainly used for precise measurement of the conductivity of liquid media, widely used in industries, agriculture, scientific research, environmental protection and other fields.

Measurement principle:

The conductivity of water, which is the reciprocal of its electrical resistance, is commonly used to measure water quality. Conductivity is the ability of an object to conduct current, and the controller's built-in microcomputer circuit converts the conductivity value by measuring the concentration of electrolytes present in water. This indicator is commonly used to estimate the total concentration or salt content of ions in water.

Standard liquid configuration:

1410us/cm conductivity calibration solution

Preparation: Place the primary potassium chloride reagent in a drying oven at a constant temperature of 220 degrees Celsius and dry for 2 hours. Weigh 0.744g and place it in a container. Dissolve the reagent in 1000mL of distilled or deionized water with a conductivity lower than 0.2uS/cm and a constant temperature of 20 degrees Celsius

Conductivity calibration: 

Place the conductive electrode into a low concentration standard solution, enter the calibration menu - low point calibration, wait for about 3 minutes to stabilize, enter the conductivity value of this standard solution, and press ENTER to confirm storage.

Place the conductive electrode into a high concentration standard solution, enter the calibration menu - high point calibration, wait for stability, enter the conductivity value of this standard solution, and press ENTER to confirm storage.

The system automatically calculates parameters. If there are still errors 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 on the same interface TDS、 Temperature, current, etc

Technical Specifications: 

Product Name: Online Conductivity Meter/Resistance Meter/TDS Meter/Salinity Meter (Used with different electrodes, please note when placing an order)

Product Model:

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

(Range depends on the electrode, other ranges can be matched with 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; Electrical resistivity: 0.01K Ω/cm; 0.01M Ω/cm Temperature: ± 0.1 ℃

Stability: conductivity/TDS/salinity/resistivity: ≤ 0.2% F.S/24h

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

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

Current output: standard configuration includes 2 channels of 4-20mA

Communication output: Standard RS485 Modbus RTU

Dimensions: 215 * 125 * 80mm

Hole size:-

Protection level: IP65

Installation method: Wall mounted

Instrument weight: 1.5kg

Environmental temperature: -10~60 ℃; Relative humidity: ≤ 90%; There is no strong magnetic field interference around except for the Earth's magnetic field

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