概览
4WHB10K 为4线半桥测量提供桥臂电阻，该模块用于那些有10 kohm阻抗的传感器。
优势与特点
- Makes accurate measurement of 10-kohm, 4-wire half bridges simple
- Easy to install or remove
- Connects directly into data logger input terminals
- Compatible with most Campbell Scientific data loggers
图像
3D/CAD 文件：
相似产品
技术说明
4WHB10K Schematic
4WHB10K-to-Sensor Hookup
产品规格
| Used With | 4-wire half bridge measurements with a 10 kΩ resistance |
| Resistance | 10 kΩ (bulk metal foil) |
| Tolerance | ±0.01% (@ 25°C) |
| Maximum Temperature Coefficient | ±0.8 ppm/°C |
| Power Rating | 0.25 W (@ 70°C) |
| Dimensions | 1.5 x 1.5 x 2.7 cm (0.6 x 0.6 x 1.0 in.) for body with prongs |
| Weight | 6 g (0.2 oz) |
兼容性
Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.
数据采集器
| Product | Compatible | Note |
|---|---|---|
| 21X (retired) | ||
| CR10 (retired) | ||
| CR10X (retired) | ||
| CR200X (retired) | ||
| CR206X (retired) | ||
| CR211X (retired) | ||
| CR216X (retired) | ||
| CR23X (retired) | ||
| CR295X (retired) | ||
| CR300 | ||
| CR3000 (retired) | ||
| CR310 | ||
| CR350 | ||
| CR500 (retired) | ||
| CR5000 (retired) | ||
| CR510 (retired) | ||
| CR6 | ||
| CR800 (retired) | ||
| CR850 (retired) |
Miscellaneous
| Product | Compatible | Note |
|---|---|---|
| CR9050 (retired) |
Additional Compatibility Information
Data Logger Considerations
The 4WHB10K uses two sequential differential analog inputs; the first differential channel must have an adjacent analog ground channel to accept the "ground prong" of the 4WHB10K. Not all data logger terminal strips have this sequence on all channels, so please check your data logger's wiring panel to confirm channel assignments, especially if you plan to use multiple Terminal Input Modules.
Newer CR10X Wiring Panels and the CR10XTCR Thermocouple Cover are deep enough to cover the data logger input channels with a Terminal Input Module attached; older CR10TCRs are not deep enough.
Programming
The 4WHB10K is measured either with CRBasic's BrHalf4W Instruction or Edlog's Instruction 9 (Full-Bridge with Excitation Compensation).
常见问题解答
4WHB10K: 2
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For more information, refer to Figure 3-1 in the "Wiring" section of the 4WPB100, 4WPB1K PRT Bridge Terminal Input Modules Instruction Manual.
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The 4WPB100, 4WPB1K, and 4WHB10K terminal input modules can be used instead of the 3WHB10K module. However, ensure that the jumper is installed between the ground side of the sensor and the low input of the second channel to maintain the four-wire accuracy.