Application:
Usually electrical conductivity EC (Conductivity Electrical) is used to measure the concentration of soluble salts in the solution of the indicators, units per meter for the SIEMENS S/m (1S/m=10mS/cm = 10000uS/cm = 10dS/m).The conductivity and temperature of the soil can be determined by measuring the conductivity and temperature of the soil substrate or nutrient solution depending on the nature of the temperature and salinity. The EC value of the measurement temperature is usually 25 degrees Celsius, the same solution, the lower temperature of the measurement EC value is lower.Under normal temperature condition,, The variation of electrical conductivity of each phase is about 2% .
The conductivity and salinity are approximately linear, its proportion is based on temperature 25 ℃, the proportion is:1 S/cm=0.55 ~ 0.75mg/l salt content. At other temperatures, it is necessary to be adjusted, that is, the temperature of each change 1℃, the salinity of about 1.5-2%.
The temperature is higher than 25 ℃ with negative, temperature lower than 25℃ with positive. So the salt can be estimated according to the electrical conductivity.
Characteristics:
Soil moisture content, electrical conductivity and temperature three parameters.
One solution can also be used for fertilizer, and other nutrient solution conductivity matrix.
(3)Electrode using special treatment of the alloy material, can withstand a strong external impact, not easy to damage.
(4)Completely sealed, acid and alkali corrosion, can be buried in the soil or directly into the water for long-term dynamic testing.
(5)High precision, fast response, good compatibility, the probe insert design to ensure accurate measurement, reliable performance.
(6)Perfect protection circuit and a variety of signal output interface.
Technical parameter |
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signal output type |
Voltage output 0-2V (output impedance 0 ohm) |
Current output 4-20mA (load resistance <500ohm) |
RS485 interface Modbus Protocol |
Power supply |
3.6-30V/DC |
12-30V/DC |
3.6-30V/DC |
Quiescent dissipation |
6mA@24V DC |
50mA@24V DC (2 output channels all 20mA) |
6mA@24V DC |
Soil moisture measurement range |
0-50% volumetric moisture content Resolution: 0-50%, 0.03%, 1% within 50-100% Accuracy: 0-2%, inside 50% 3% within 50-100% |
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Conductivity range |
optional range: 0-5000 us/cm, 10000 us/cm, 20000 us/cm Resolution: 10 us/cm within 0-10000 us/cm, 50 us/cm within 10000-20000 us /cm Precision of 0-10000 us/cm range is ±3%; 10000-20000 us/cm range is ±5% |
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Electrical conductivity temperature compensation |
Built in temperature compensation sensor, compensation range 0-50℃ |
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Soil temperature measuring range |
Range: - 40 ~ 80 ℃, resolution: 0.1 ℃, precision: ± 0.5 ℃ |
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Measuring principle and measuring method |
The FDR method of soil moisture, soil electrical conductivity of alternating current bridge method to soil in situ insertion or immersion into the culture medium and fertilizer whole nutrition liquid in direct test |
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Protection grade |
IP68 submerged in water can be used for a long time |
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Operating environment |
-40~85℃ |
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The material of the probe |
Anti-corrosion special electrode |
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Sealing material |
Black flame retardant epoxy resin |
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Installation |
All embedded or probe inserted into the measured medium |
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Default cable length |
2 meters, the cable length can be customized according to requirements |
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attended mode |
Pre installed cold pressed terminal |
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outline dimension |
45*15*145mm |
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Electrode length |
70mm |
Type selection :
Code number |
Code |
Code info. |
Code1:product line |
MEC10 |
MEC10 Soil moisture, soil electrical conductivity (EC) and temperature, three parameter measuring sensor |
Code2:Measurement parameters |
A B C |
Soil moisture, soil electrical conductivity (EC) Soil temperature, soil electrical conductivity (EC) Three parameter measurement(RS485 Output Only) |
Code3: Soil moisture range |
A B |
0-50% 0-100% |
Code4: Electrical conductivity range |
A B C D |
0-5000us/cm 0-10000us/cm 0-20000us/cm Customer customization |
Code5:power supply |
A B C |
1.3-5.6V/DC 3.6-30V/DC 12-30V/DC (output:4-20mA Only) |
Code6:Output |
A B C D E |
Voltage output 0-2V Current output 4-20mA RS485 interface Modbus protocol RS485 interface, Modbus Protocol & voltage 0-2V output RS485 interface, Modbus Protocol & current 4-20mA output |
Code 7:Line length |
002 XXX |
2 meters Custom, XXX is an arbitrary length (unit: m) |
Model example: MEC10 Sensor, soil moisture range is 0-100%,Soil electrical conductivity measurement range 0-10000us/cm,3.6-30V/DC,RS485 interface, Modbus protocol, 5 wire length. Type selection code:MEC10 - A B B A C 005 |
Contact:Anna
Phone: +86 14775548318
Email: hns@szhonas.com
Whatsapp: +86-14775548318
Add:805 Jingfa Building, No. 46 Baoqian Lane, Baoqian Road, Baoan District, Shenzhen