JXCT JXBS-3001-EC User manual

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JXBS-3001-EC Soil Electric Conductivity Sensor User Manual
JXBS-3001-EC
Soil EC Sensor User Manual
Analog Output (4-20mA/0-5V/0-10V)
Version: 2.0
Date: 2020-01-05
Status: Released
www.jxct-iot.com

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JXBS-3001-EC Soil Electric Conductivity Sensor User Manual
I. BRIEF INTRODUCTION
1.1 Product Overview
The soil conductivity sensor is suitable for measuring the total salt content (conductivity) of the soil. The soil
conductivity sensor greatly facilitates the customer system's assessment of soil conditions. .
Compared with the German original high-accuracy sensor, the precision is high, the response is fast, and the
output is stable. Suitable for all kinds of soil. Can be buried in soil for a long time, resistant to long-term
electrolysis, corrosion resistance, vacuum potting, completely waterproof.
1.2 Primary Parameters
TABLE 1 Primary Parameters
PARAMETERS
TECHNICAL SPECIFICATIONS
POWER SUPPLY
12-24V DC
EC MEASUREMENT RANGE
0-10000us/cm
EC RESOLUTION
10us/cm
STORAGE ENVIRONMENT
-45℃-115℃
RESPONSE TIME
<1s
INSTALLATION METHOD
All buried or probes are
inserted into the measured
medium
PROTECTION LEVEL
IP68
POWER CONSUMPTION
<1.15W
CURRENT OUTPUT TYPE
4-20mA
CURRENT OUTPUT LOAD
≤600 Ω
VOLTAGE OUTPUT TYPE
0-5V/0-10V
VOLTAGE OUTPUT LOAD
≤250 Ω
WORKING PRESSURE RANGE
0.9-1.1atm

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1.3 System frame Diagram
FIGURE 1 SINGLE-ENDED
FIGURE 2 MUTIPLE-ENDED

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JXBS-3001-EC Soil Electric Conductivity Sensor User Manual
II. HARDWARE CONNECTIONS
2.1 CHECKING BEFORE INSTALLATION
Check the list of devices before installation:
TABLE 2 List of Devices
2.2 Interface Description
The power interface is wide-voltage power input 12-24V. Analog products should pay attention to the positive and
negative signal lines. Do not reverse the positive or negative of the current/voltage signal lines.
FIGURE 3 PHYSICAL PICTURE
Name
Number
THE SENSOR DEVICE
1
12V POWER ADAPTER（Optional）
1
WARRANTY CARD / CERTIFICATE
1

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JXBS-3001-EC Soil Electric Conductivity Sensor User Manual
TABLE 3 Wiring Sequence
Line Color
Description
Power
Brown
Power supply Positive ( 12-24V DC )
Black
Power supply Negative
Communication
White
Voltage/current output Positive
Gray
Voltage/current output Negative
Blue
NC
Yellow
NC
We provide default cable length of 1.5meters, you can extend the cable yourself according to your needs.
2.3 Speed measurement method
Select the appropriate measurement site, avoid the stones, ensure that the steel needle does not hit a hard object,
throw the topsoil at the required depth of measurement, keep the underlying soil tightness, grip the sensor
vertically into the soil, insert It is not possible to shake left and right. It is recommended to measure multiple times
within a small area of a measurement point to obtain the average value.
2.4 Buried method
Dig a pit with a diameter of >20cm vertically and insert the sensor steel needle horizontally into the wall of the pit
at a predetermined depth. After the pit is buried tightly and stable for a period of time, it can be measured and
recorded for several days, months, or even longer.
2.5 Precautions
1, steel needle must be fully inserted into the soil.
2. Avoid direct sunlight on the sensor and cause excessive temperature. Use caution in the field against
lightning strikes.
3, do not violently bend the steel needle, do not force pull the sensor leads, do not beat or violently hit the
sensor.
4, sensor protection grade IP68, the sensor can be soaked in water.
5, due to the presence of radio frequency electromagnetic radiation in the air, it should not be in a state of
power in the air for a long time.

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JXBS-3001-EC Soil Electric Conductivity Sensor User Manual
III. WIRING INSTRUCTIONS
3.1 Typical four-wire wiring
Analog sensor wiring is simple, just connect the wire to the designated port of the device. The device supports
3-wire wiring.
The following figure shows the voltage sensor connection mode. The power line (brown line and black line) of the
sensor is connected to the power supply; the yellow (gray) color line of the sensor is the signal that is connected
to the acquisition device. Positive, yellow (gray) The voltage of the line is the output voltage; the blue line of the
sensor is the signal that the signal is being connected to the voltage acquisition device, and the voltage of the
blue line is the reference voltage, which is consistent with the voltage of the black line being 0V.
3.1 Typical Three-wire Connection Mode
For a typical three-wire connection, the blue line, the yellow line, and the gray color are omitted. In the sensor, the
gray line and the black line are short-circuited, so the gray line can be omitted.
For the three-wire current connection mode, after the power supply lines (brown and black wires) of the sensor
are connected to the power supply, it is only necessary that the white signal of the sensor is connected to the
signal of the current acquisition device.
For the three-wire voltage connection method, after the power cables (brown wires and black wires) of the
sensors are connected to the power supply, the white wires of the sensors need only to be connected to signals of
the voltage acquisition equipment.

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JXBS-3001-EC Soil Electric Conductivity Sensor User Manual
IV. ANALOG PARAMETERS MEANING AND
CONVERSION
4.1 Analog 4-20mA Current Loop
Current value
EC
4mA
0us/cm
20mA
10000us/cm
The formula is PEC = (I (current) -4mA) *625us/cm
Where I is in mA.
For example, the data Iout+ collected in the current situation is 8.25 mA, and the soil conductivity value
calculated at this time is 2652.25 us/cm.
4.2 Analogue 0-10V Voltage Output
Voltage value
EC
0V
0us/cm
10V
10000us/cm
The formula is PEC= V (voltage) us/cm
Where V is in mV.

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JXBS-3001-EC Soil Electric Conductivity Sensor User Manual
For example, the data Vout+ collected in the current situation is 3515 mV, and the soil conductivity value
calculated at this time is 3515 us/cm.
4.3 Analogue 0-5V voltage output
Voltage value
EC
0V
0us/cm
5V
10000us/cm
The formula is PEC= V (voltage) * 2us/cm
Where V is in mV.
For example, the data Vout+ collected in the current situation is 4228 mV. At this time, the soil conductivity value
is calculated as 8456 us/cm.