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E-mail
wangjh@dianjiangtech.com
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Phone
19901636028
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Address
Building 42, Fortune Xingyuan, Lane 188, Maoting Road, Chedun Town, Songjiang District, Shanghai
DianDian (Shanghai) Technology Co., Ltd
wangjh@dianjiangtech.com
19901636028
Building 42, Fortune Xingyuan, Lane 188, Maoting Road, Chedun Town, Songjiang District, Shanghai
Purpose: Steam permeameterIt is an important system for studying water balance and related parameters in ecosystems, mainly developed for agricultural and forestry water related issues such as the transportation and transfer of water in the atmosphere, plants, soil, soil organisms, and groundwater, as well as the interactions that occur. We mainly study the influencing factors of water transport and water balance in columnar soils through soil weighing systems, monitoring systems, and data acquisition systems.
Features:
A complete soil evapotranspiration system suitable for agricultural production, scientific research, and water conservancy measurement purposes;
Easy to maintain and suitable for long-term field monitoring;
High measurement accuracy, no need for manual intervention;
Integrate data collection and wireless communication, and have chart display function;
The data collection density can be set by oneself;
Support communication/solar/battery power supply methods;
It can be used for single site applications or networked for wireless data transmission;
Large capacity data storage;
Can be connected to various soil and environmental meteorological sensors externally;
Technical Specifications:
data collector | ||
Operating temperature |
-From 20 ° C to+70 ° C, the low temperature can be extended to -30 ° C under small loads |
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Analog input |
12 single ended devices |
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pulse counting |
1 piece |
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frequency |
1 piece |
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Voltage excitation terminal |
1 piece |
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Switch 12V |
6 of them |
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Switch 3.3V |
1 piece |
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Digital I/O |
8 SDI-12, 2 sets of RS485 or RS232 |
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input restrictions |
±5 V |
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Analog voltage accuracy |
12 bit resolution, range of 5000mV, basic resolution of 1.47mV, accuracy of ± (0.08% reading+1 bit resolution) (-20 ℃ -40 ℃) |
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ADC |
12 digits |
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power supply |
17-24V (customizable within 5V-24V according to requirements) |
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communication protocol |
Modbus, RS485/RS232/TTL, DDI, SDI-12, and others |
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Internal storage |
32M data storage, 32M image storage |
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MicroSD card expansion |
Supports up to 32GB Micro SD |
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Internal lithium battery |
20Ah/3.7V polymer lithium battery |
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Electricity consumption (3.7V) |
Powered by internal battery, at a voltage of 3.7V, sleep mode: 0.11mA, measurement: 12mA (excluding sensors), transmission: 100mA-800mA |
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size |
290mm×250mm×110mm |
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weight |
2.25kg |
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Soil column bucket (customized) | ||
material |
stainless steel |
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size |
Surface area of 1-2 square meters, height of 1-2 meters |
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Weighing unit | ||
range |
0-15 tons |
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precision |
C3/C6 |
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material |
stainless steel |
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Subsurface water sensor | ||
sensor type |
Flip bucket and magnetic spring switch |
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output |
switch signal |
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resolution |
0.2mm(4.28ml) |
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data transmission | ||
cloud platform |
Free for 3 years |
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Expandable configuration (optional) | ||
Three parameters of soil |
optional |
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Soil tension sensor |
optional |
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Soil solution sampler |
optional |
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