Weihai Systems JXBS-3001-EC User manual

INSTRUCTION
MANUAL
Soil EC humidity temperature sensor
JXBS-3001-EC
TYPE 485
VER1.0
WeihaiJXCTElectronicTechnologyCo.,Ltd.
I PRODUCT INTRODUCTION

1.1 Product Overview
The soil EC moisture temperature three-in-one sensor is
suitable for measuring soil temperature and moisture and
total soil salt content (conductivity). The soil three-in-one
sensor creatively measures salinity, moisture, and temperature
together, which greatly facilitates the customer's systematic
evaluation of soil conditions. .
Compared with the German original high-precision sensor
and the actual soil drying and weighing method calibration,
the precision is high, the response is fast, and the output is
stable. It is less affected by the salt content of the soil and is
suitable for various soil qualities. Can be buried in the soil for

a long time, resistant to long-term electrolysis, corrosion
resistance, vacuum potting, completely waterproof.
1.2 Application
It is widely used in scientific experiments, water-saving
irrigation, greenhouses, flowers and vegetables, grass
pastures, rapid soil testing, plant cultivation, sewage
treatment, grain storage and water content and temperature
measurement of various particulate matter.
1.3 Measurement parameters and
hardware parameters
PARAMETERS
CONTENT
PARAMETERS
CONTENT
POWER SUPPLY
12-24V DC
TEMPERATURE
MEASURING
RANGE
-40 ℃-80 ℃(可
定制)

MOISTURE
MEASURING
RANGE
0-100%
TEMPERATURE
ACCURACY
±0.5℃
STORAGE
ENVIRONMENT
S
-45℃-115
℃
OUTPUT
SIGNAL
RS485
MOISTURE
ACCURACY
±3% in
the range of
0-53%;
±5% in
the range of
53-100%
INSTALLAITION
METHOD
Fully embedded
or all probes
inserted into the
test medium
EC RANGE
0-10000us/
cm
EC
RESOLUTION
10us/cm
RESPONSE
TIME
<1s
PROTECTION
CLASS
IP68
POWER
CONSUMPTIO
N
≤0.15W
（@12V
DC , 25℃）
WORKING
PRESSURE
RANGE
0.9-1.1atm
When measuring frozen soil layer, the moisture value will
be low and inaccurate, which requires user compensation.
The factory default product is suitable for measuring

ordinary yellow, black and red land. It is not suitable for
absolute moisture measurement in saline-alkali land, sandy
land or other powder objects with large salt content. The
single can still characterize the relative moisture difference.
For this type of moisture measurement, the manufacturer
should be contacted for a separate calibration.
1.4 Calculation method and meaning of
soil moisture
The soil moisture calculated by this sensor is the soil
volumetric water content (also called soil volumetric water
content), which is what people call "soil humidity" and "soil
moisture" in a popular sense.

The volumetric water content of soil is calculated as the
ratio of the volume of water in the soil to the total volume of
the soil. 0% means completely dry soil without any moisture,
100% means completely water without any soil.
1.5 System Frame Diagram
The sensor can be connected and used alone. First, it is
powered by 12V DC power supply. The device can be directly
connected to a PLC with a 485 interface, and it can be
connected to a microcontroller through a 485 interface chip.
Program the microcontroller and PLC through the modbus
protocol specified later to cooperate with the sensor. At the
same time, you can use USB to 485 to connect to the computer,

and use the sensor configuration tool provided by our
company for configuration and testing.
This product can also be used in combination with
multiple sensors on a 485 bus. Please observe the "485 bus
field wiring code" (see Appendix) when combining 485 buses.

In theory, one bus can connect more than 16 485 sensors. If
you need to connect more 485 sensors, you can use a 485
repeater to expand more 485 devices. The other end is
connected to a PLC with a 485 interface and a 485 interface
chip. Connect to a single chip microcomputer, or use USB to
485 to connect to a computer. Use the sensor configuration
tool provided by our company for configuration and testing.

II INSTRUCTIONS

2.1 Equipment inspection before
installation
Please check the equipment list before installing the
equipment:
Name
Number
THE SENSOR DEVICE
1
12V POWER ADAPTER（Optional）
1
WARRANTY CARD / CERTIFICATE
1
THE USB TO 485 DEVICE（Optional）
1
2.2 Interface description
The power interface can be 12-24V for wide voltage