土壤含水量测量
概览
HS2 手持式显示器用于新型的Hydrosense II 土壤含水量传感器。当与CS658 或 CS659便携式土壤含水探头配对时，替代了先前的Hydrosense 土壤含水量系统。它的特征是新的手持式显示器和新的探头设计。HS2 手持式显示器设计紧凑而便携，按键布局允许单手操作。
优势与特点
- 紧凑且重量轻
- 在野外读取实时的土壤含水量测量
图像
技术说明
手持式显示器
这种显示器包含三英寸的液晶显示器和4个导航键，可尽可能轻松地更改设置、实施测量。内置的GPS会给每一次测量标注纬度和经度。
可创建条带区域，进行群组测量，并计算该区域内的平均土壤湿度。当前的位置和条带显示在显示器中，这样可进行相同条带内的测量。
增加了数据内存，可在设备上存储超过1000个测量。之后可通过蓝牙通讯下载到PC上，进行查看和归档。
土壤含水量探头
新的土壤含水量探头与老的探头使用相同的精确测量技术，不过探头的外壳经过重新设计，支持插入硬实土壤或从中移除。探头的探针通过卡套螺母紧固连接到探头壳体上，在插入时可提供额外的稳定性。模塑塑料手柄传感器线缆与壳体，更方便握住传感器。
软件
新的PC软件已经开发了HS2的数据存储功能中的大多数。软件通过蓝牙通讯连接到HS2，不需要额外的线缆。
软件可让用户实现以下操作：
- 以表格和绘图形式查看数据
- 编辑条带位置和大小
- 改变设备设置
- 导出数据到CSV，接口第三方软件
- 在Google Earth中查看条带和测量
产品规格
| Measurements Made | Volumetric water content (VWC) of porous media (such as soil) |
| Required Equipment | HS2 is a complete system. |
| Soil Suitability | Short rods are easy to install in hard soil. Suitable for soils with higher electrical conductivity. |
| Rods | Replaceable |
| Sensors | Interchangeable sensors; can swap the 12 cm and 20 cm sensors with the reader. |
Handheld Display |
|
| Display | 128 x 64 pixel graphic LCD |
| Backlight | Blue and white LED (brightness-adjustable) |
| GPS Accuracy |
|
| Bluetooth Range | ~10 m (~30 ft) |
| Data Storage | > 1000 records (ring memory) |
| Zone Storage | > 100 records |
| Power Supply | 6 Vdc, 4 AA batteries |
| Battery Life | 6 to 12 months (typical usage) |
| Dimensions | 200 x 100 x 58 mm (7.9 x 3.9 x 2.3 in.) |
| Weight | 340 g (12 oz) |
Typical Power Consumption of Display |
|
| Sleep | 20 µA |
| Backlight Off | 2 mA |
| Backlight at 60% | 18 mA |
| Backlight at 100% | 30 mA |
| GPS Active | 35 mA |
| Bluetooth Active | 30 mA |
Probe Options |
|
| -NOTE- | The CS659 and CS658 cannot share rods. |
| Water Content Accuracy |
|
| Volumetric Water Content Resolution | < 0.05% |
| Volumetric Water Content Range | 0% to 50% VWC |
| Cable Type | Spiral |
| Cable Length | 250 cm (98 in.) extended |
| Rod Diameter | 5 mm (0.14 in.) |
| Rod Length |
|
| Body Dimensions | 100 x 92 x 40 mm (3.9 x 3.6 x 1.6 in.) |
| Weight | 450 g (15.9 oz) |
兼容性
System
The HS2 is the display used in the Hydrosense II System.
Water Content Sensors
The water content sensor is ordered as an option, and may also be purchased separately. Either the CS658 or CS659 can be used with the HS2. The CS658 has 20-cm rods, and the CS659 has 12-cm rods.
Note: The CS658 and CS659 cannot share rods (i.e., 12-cm rods cannot be used with the CS658, and 20-cm rods cannot be used with the CS659).
下载
HydroSoft v.1.0.8 (5.16 MB) 26-07-2012
Current version of the HydroSense II Support Software.
常见问题解答
HS2: 19
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Four AA batteries power the HS2. The batteries are user replaceable.
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No. The displays and sensors are not interchangeable between the HydroSense and HydroSense II.
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Yes. See the "Connecting via Bluetooth" subsection in the "Data Storage and Retrieval" section of the HS2 Instruction Manual.
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When Deficit Mode is used, a value greater than 100% RWC indicates that the water content is above the wet reference. For more information, see the "Water Deficit Data" subsection in the "Operation" section of the HS2 Instruction Manual.
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As stated in the "Connecting via Bluetooth" subsection in the "Data Storage and Retrieval" section of the HS2 Instruction Manual: “The first time the HydroSense II unit is used with a new computer, the computer and HydroSense II must be ‘paired’ before a connection can be made. The pairing code is ‘1234.’” For more information, see the "Connect to a Device" subsection of the "Quickstart" section of the HydroSense II Support Software User Guide.
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No. These products are retired.
- The CD620 display was replaced by the HS2.
- The CS620 Water Content Sensor was replaced with the CS658 and CS659.
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A detailed comparison can be found in Table 4-1 in the "Overview" section of the HS2 Instruction Manual.