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| Services Available | |
|---|---|
| Repair | Yes |
| Calibration | Yes |
| Free Support | Yes |
概览
CS470为紧凑的气泡式水位计，通常用于测量地下水或地表水的水位。但也可用于测量其它任何液位。CS470的精度为 ±0.02 英尺。Campbell Scientific的数据采集器控制CS470的泵，并计算测量结果。CS470通常通过SDI-12协议与数据采集器通讯；我们数据采集中的多数都支持SDI-12协议。
优势与特点
- Ideal for areas where submersed sensors can be damaged due to corrosion, contamination, flood-related debris, lightning, or vandalism
- Compatible with most Campbell Scientific data loggers
- Easy to maintain
- Robust pump design provides reliable operation
- Consistent accuracy ensured by drift-free measurements and offset compensation using relative measurement
- Purge function clears the measuring tube and the bubble chamber of contamination
- Does not use pressurized nitrogen tank—requiring less frequent attendance
- Existing tubes can be used
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技术说明
CS470含有一个用于压缩空气的活塞泵，压缩空气通过一根测量管流入被测量的水体；测量管中制造的压力的大小直接与气泡腔中上方的水柱成比例。CS470先后测量大气压力和气泡压力，继而通过两者的压力差，计算出气泡腔上方的水柱高度。
为了使用CS470，数据采集系统必须包含：测量管、气泡腔、电源、数据采集器以及与数据采集器连接的线缆。Campbell Scientific以通用附件（参阅订货信息）的方式提供测量管、气泡腔和线缆。CS470、数据采集器和电源必须安装在干燥的环境里，通常为一个Campbell Scientific机箱。用于安装CS470到机箱内背板的固定件与CS470一起发运。
CS470的通讯方式有SDI-12、 4 - 20 mA、 或 RS-485（SDI-12 协议通过一个物理的 RS-485接口），当与Campbell Scientific数据采集器一起使用时，SDI-12为首选的通讯协议。我们数据采集器中的多数都支持SDI-12协议。
产品规格
| Accuracy | ±0.61 cm (±0.02 ft) |
| Resolution | 0.003 ft /0.014 psi |
| Power Requirements | 10 to 30 Vdc |
| Measurement Time | 1 min |
| Outputs | SDI-12 (version 1.3) 1200 bps, 4-20 mA, RS-484 (SDI-12 Protocol via RS-485 interface) |
| Measurement Range | 0 to 15.2 m (0 to 50 ft) |
| 操作温度范围 | -20° to +60°C |
| Storage Temperature Range | -40° to +85°C |
| Relative Humidity Range | 10% to 95% RH (non-condensing) |
| Measurement/Communication Current (Typical) |
|
| Maximum Measuring Tube Length | 100.6 m (330 ft) |
| Electronics Box Dimensions | 16.5 x 20.5 x 11.5 cm (6.5 x 8.1 x 4.5 in.) |
| Weight | 1.5 kg (3.3 lb) |
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) | ||
| CR3000 (retired) | ||
| CR3000 (retired) | ||
| CR500 (retired) | ||
| CR5000 (retired) | ||
| CR510 (retired) | ||
| CR800 (retired) | ||
| CR850 (retired) | ||
| CR9000 (retired) |
常见问题解答
CS470: 9
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The measurement range is the same: 15.24 m (50 ft) of water. The CS471, however, is more accurate.
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Place the CS470 or CS471 above the high-water mark, and run the tubing into the water. Because the tubing is the only portion of the sensor in contact with the water, the sensor itself won’t be damaged by the current. It may be necessary, however, to replace damaged tubing occasionally.
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The smallest enclosure that will accommodate these items is our ENC14/16.
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Yes, as long as the PLC is able to read 4 to 20 mA signals.
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No. These sensors do not need a gas bottle, and a pump is included with them.
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Terminate the tubing in a stilling well to greatly mitigate the effects of deposition. If this is not possible, use pn 25502, OTT EPS-50 Bubble Chamber.