This product is no longer available.
| Services Available | |
|---|---|
| Repair | Yes |
| Calibration | Yes |
| Free Support | Yes |
概要
The CS470 is a compact bubbler that generally measures ground or surface water level, but can also measure any liquid level. This bubbler has an accuracy of ±0.02 ft. A Campbell Scientific data logger controls the CS470 pump and calculates the measurements. The bubbler typically communicates with the data logger via the SDI-12 protocol. Many of our data loggers support SDI-12.
続きを読む利点と特徴
- 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
イメージ
詳細
The CS470 contains a piston pump that compresses air. The compressed air flows through a measuring tube into the water being measured. The pressure created in the measuring tube is directly proportional to the water column above a bubble chamber. The CS470 measures both barometric pressure and bubble pressure, one after the other. The height of the water above the bubble chamber is then calculated by taking the difference between the barometric and bubble pressure measurements.
To use the CS470, the acquisition system must include the measuring tube, a bubble chamber, power supply, data logger, and data-logger-connection cable. Campbell Scientific offers the measuring tube, bubble chamber, and cable as Common Accessories. (See the Ordering Info on the web page.) The CS470, data logger, and power supply must be housed in a desiccated environment, typically a Campbell Scientific enclosure. Hardware for mounting the CS470 to an enclosure backplate is shipped with the sensor.
The CS470 can communicate via SDI-12, 4 - 20 mA, or RS-485 (SDI-12 protocol via a physical RS-485 interface). SDI-12 is the preferred protocol when using Campbell Scientific data loggers. Many of our data loggers support SDI-12.
仕様
| 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) |
| Operating Temperature Range | -20° to +60°C |
| Storage Temperature Range | -40° to +85°C |
| Relative Humidity Range | 10% to 95% RH (non-condensing) |
| Measurement/Communication Current (Typical) |
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| 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) |
互換性
注意： 以下は代表的な互換性情報を示しています。互換性のある製品や互換性のない製品をすべて網羅したリストではありません。
よくある質問
CS470に関するよくある質問の数： 9
すべて展開すべて折りたたむ
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No. These sensors do not need a gas bottle, and a pump is included with them.
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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 measurement range is the same: 15.24 m (50 ft) of water. The CS471, however, is more accurate.
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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.
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Yes, as long as the PLC is able to read 4 to 20 mA signals.
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The smallest enclosure that will accommodate these items is our ENC14/16.
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