RK500-23 EC Salinity Sensor

RK500-23

New

EC SOIL
On-line & real-time measurement
Titanium alloy electrode & teflon lining
High accuracy
Electromagnetic isolation
Strong resistance to corrosion
Polarization resistance
Integral design without external transmitter
RS485 and 4-20mA output

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 Soil salinity sensor integrates graphite electrode and precision platinum resistance, to measure the soil salt through temperature compensation algorithm. After submerged into the soil, it can directly test salt content in the soil.
 
FEATURES
  * On-line & real-time measurement
  * With temperature compensation
  * High accuracy
  * Simple operation and high reliability
  * Fast response
  * Strong resistance to corrosion
APPLICATIONS
  * Environmental protection
  * Agriculture & planting
  * Forestry
  * Soil quality measurement
  * Sewage treatment
  * Oil and gas pipeline corrosion monitoring

1. In Soil
Section installation
In the area of need to measure dig a soil profile, determine the position of the sensor and depth in the section, the section on level to dig deep for 10-20 cm round hole, insert the sensor level until the bottom of the hole, then filled out of the clay compaction, to ensure that the sensor electrode surface closely contact with soil.
Sensors buried, the soil pit backfill compaction sequence according to the original soil layer.
Ground stiletto installation
In the measurement area, down from the ground to play a hole to the desired depth, sensor inserted to the bottom of the hole, closely contact with the soil, will then stratified backfill compaction.
Measure the soil solution
Take a 1 mm sieve separation of 20.00g dried soil, put in 250 ml bottle drying triangle, add distilled water, 100 ml (water:soil = 5:1), oscillation for 5 minutes, the filtered in dry triangle in the bottle.Take the filtered solution 30 ml, placed in small 50 ml beaker, the sensor electrode in the leaching liquid to be tested.

 

Item

Technical Specification

EC Salinity

Measuring medium

Soil or similar to soil

Principle

Frequency conversion method

Range

 0~1000us/cm, 0~2000us/cm,0~5000us/cm,0~10000us/cm,0~200ms/cm,(any range of 0-300ms/cm can be customized, 1ms/cm = 1000us/cm)
0~100000ppm(mg/L)
1ppm(mg/L)=1000ppb(ug/L)=1000000ppt(ng/L)
Supply 7-30VDC(power consumption<0.2W)

Accuracy

±1%

Response time

1s

Output Signal

4-20mA & RS485 at the same time

Electrode

Titanium alloy 
/

Temperature compensation

/

Automatic compensation
Drift ≤0.3%FS/24h
Operating Temperature -20℃-+80℃
Probe material 316L 
Probe material Φ13*175mm
Ingress Protection IP68
Storage 10-60℃@20%-90%RH
Cable length Default:5m

 PARAMETER SELECTION TABLE

 

Remark

Series

Type

Parameter

Supply

Output

Cable Length

 

RK

 

 

 

 

 

 

 

 

500

 

 

 

 

 

 

 

 

23

 

 

 

 

 

      E       EC
      S       Salinity
        A     7-30V

 

 

 

 

X

 

 

Other

 

 

 

 

 

A

 

4-20mA

 

 

 

 

 

B

 

RS485

 

 

 

 

 

X

 

Other

 

 

 

 

 

 

5000

Unit(mm)

 

 

 

 

 

 

...

Unit(mm)

 

Example: RK500-23EAA5000 EC sensor, Supply:7-30V,  Output:4-20mA,   Cable length:5m.

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