| Customization: | Available |
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| Installation Type: | Insert Into Soil |
| Contact: | Contact |
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TR-HTS FDR 4-20mA Output rs485 modbus i2c htc505 ip66 soil moisture and temperature sensor integrated temperature and humidity sensor has stable performance and high sensitivity. It is an important tool for observing and studying the occurrence, evolution, improvement and dynamics of soil. Soil temperature and soil moisture can be measured simultaneously; by measuring the dielectric constant of the soil, the true moisture content of various soils can be directly and stably reflected. The soil moisture sensor measures the volume percentage of soil moisture and is a soil moisture measurement method that meets current international standards.
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Technical parameters
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Signal output
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Voltage output 0-2V
Output impedance<1Kohm |
Current output 4-20mA
Load resistance<500ohm |
RS485 interface, Modbus protocol (If RS232, using data communications interface converters)
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Supply voltage
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5-30V/DC
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12-30V/DC
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5-30V/DC
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Max power consumption
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40mA@24V DC
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80mA@24V DC
(when 2 current output channels both 20mA) |
30mA@24V DC
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Soil moisture measurement scope
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A cylinder with a diameter of 20cm and a height of 17cm centered on a central probe
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Response time(moisture and temperature)
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<1s
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Soil moisture measurement range
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0-100% moisture volume percentage
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Soil moisture measurement resolution
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±3% between 0-53%; ±5% between 53-100%
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Soil temperature measurement range
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-40~80ºC
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Soil temperature measurement accuracy
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±0.5ºC
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Protection grade
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IP68
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Operating temperature
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-40~85ºC
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Storage environment
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-40~85ºC
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Probe material
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Food grade stainless steel
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Sealing material
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Black flame retardant epoxy resin
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Installation method
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All imbedded or probe inserted into the medium under test
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Model
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Wiring diagram
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Voltage output
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Red(V+): +
Black(G): ground Blue(O1): output signal(temperature) Brown(O2): output signal(moisture volume percentage) Yellow: Do not connect White: Do not connect Green: Do not connect |
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Current output
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Red(V+): +
Black(G): ground Blue(O1): output signal(temperature) Brown(O2): output signal (moisture volume percentage) Yellow: Do not connect White: Do not connect Green: Do not connect |
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RS485 interface, Modbus protocol
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Red(V+): +
Black(G): ground Blue(O1): Do not connect Brown(O2): Do not connect Yellow(T+): RS485+/A/T+ White (T-): RS485-/B/T- Green (SET): When connecting V+(power is positive), the power on start module enters "setting mode". When not connected or connected to G (power ground), the power start enters "operation mode". The configuration parameters such as Modbus address, baud rate, verification bit, communication protocol, etc. are stored in the EEPROM (power-off storage device) inside the module. Sometimes you forget the specific configuration of these parameters and cannot communicate with the module. To prevent this problem, the module has a special mode called setup mode. When the module starts up in Settings mode, the module will communicate with the following parameters: Modbus address is fixed at 0 Communication configuration is 9600,N,8,1(9600bps,no verification bit,8 data bits,1 stop bit) Communication protocol is Modbus-RTU Configuration parameters in an EEPROM do not change as the module enters "setup mode," and when the module is in "run mode," these configuration parameters in the EEPROM are still communicated. |
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