Ideal for long-term deployment in harsh conditions
Visão Geral
The CS456 is a pressure transducer for water-level measurements in canals, wells, ponds, harbors, lakes, streams, and tanks. It has a rugged titanium case that allows it to be used in saltwater and other harsh environments. The CS456 outputs either a digital SDI-12 or RS-232 signal to indicate observed pressure and temperature. This output can be read by many of our data loggers. The CS456 replaces the CS455 transducer. The new transducers have a smaller gap between the water ports and the diaphragm so that less air is trapped that the user must remove during deployment. Trapped air causes the transducer's readings to drift as the air slowly dissolves into the water.
Leia maisBenefícios e Características
- Rugged titanium case protecting the piezoresistive sensor and allowing it to be used in saltwater and other harsh environments
- Quality construction to ensure product reliability
- Fully temperature-compensated
- Low-power sleep state between measurements to reduce power consumption
- Optional weighted nose cone to facilitate submersion
- Compatible with most Campbell Scientific data loggers
- Optional NPT nose cone to enable usage in closed-pipe applications
- Quick shipment after receipt of order (ARO)
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Descrição Técnica
The CS456 consists of a piezoresistive sensor and a temperature sensor housed in a titanium case. It has a rugged Hytrel cable that remains flexible, even under harsh environmental conditions. The cable incorporates a vent tube to compensate for atmospheric pressure fluctuations. The vent tube terminates inside a desiccant tube, which prevents water vapor from entering the inner cavity of the transducer.
The CS456 has several pressure range options and two accuracy options (see Ordering Info). The standard accuracy option provides ±0.1% FS TEB over the 0° to 60°C temperature range. The high accuracy option provides ±0.05% FS TEB over the 0° to 60°C temperature range and includes a calibration certificate. TEB is the combined errors due to nonlinearity, hysteresis, non-repeatability, and thermal effects over the compensated temperature range, per ISA S51.1. Please note that the high accuracy option is not available for the 0 to 2.9 psig range option.
Campbell Scientific offers the A150 Desiccated Case that allows the CS456 to be connected to a prewired enclosure (see Ordering Information).
Especificações
| Measurement Time | < 1.5 s |
| Output Options | SDI-12 (version 1.3) 1200 bps; RS-232 9600 bps |
| Water-Level Resolution | 0.0035% FS |
| Worst-Case Temperature Resolution | 0.006°C |
| Dry Storage Temperature Range |
-10° to +80°C WARNING: Sensor could be damaged if encased in frozen ice. |
| Operating Temperature Range |
0° to 60°C WARNING: Sensor could be damaged if encased in frozen ice. |
| Temperature Accuracy | ±0.2°C |
| Overpressure | 2 x pressure range |
| Power Requirements | 6 to 18 Vdc |
| Cable Type | Hytrel Jacket, five conductor, 26 AWG |
| NPT Fitting | 1/4-in. NPS |
| Top Cone Material | Delrin |
| Body Material | Titanium |
| Element Material | Hastelloy |
| Distance |
|
| Ingress Protection | Exceeds IP68 |
| Diameter | 21.34 mm (0.84 in.) |
| Length | 213.36 mm (6.875 in.) |
| Cable Weight | 0.0421 kg/m (0.0283 lb/ft) |
| Weight | 0.10 kg (0.23 lb) without cable |
Power Consumption |
|
| Quiescent | < 50 µA |
| Measurement/Communication | 8 mA (1 s measurement) |
| Maximum | 40 mA |
Measurement Ranges at Fresh Water Depths |
|
| 0 to 2.0 m (6.7 ft) |
|
| 0 to 5.1 m (16.7 ft) |
|
| 0 to 10.2 m (33.4 ft) |
|
| 0 to 20.4 m (67 ft) |
|
| 0 to 50.9 m (167 ft) |
|
| 0 to 102 m (334.5 ft) |
|
Accuracy |
|
| -NOTE- | Includes the combined errors due to nonlinearity, hysteresis, nonrepeatability, and thermal effects over the compensated temperature range, per ISA S51.1. |
| Standard Accuracy Option | ±0.1% full-scale-range TEB |
| High Accuracy Option |
±0.05% full-scale-range TEB The high accuracy (±0.05% full-scale range) option is not available for the 0 to 2.9 psig range option. |
Maximum Cable Length |
|
| SDI-12 |
|
| RS-232 | 60 m (200 ft) |
Air Gap |
|
| Standard & Weighted Nose Cone | 0.653 cm (0.257 in.) |
| NPT Fitting | 2.72 cm (1.07 in.) |
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Perguntas Frequentes Relacionadas
Number of FAQs related to CS456: 6
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No. Because of the SDI-12 protocol, the CS45x-series pressure transducers can only make measurements every 1.5 seconds.
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Yes, but a data logger is required. The CS45x-series pressure transducers are not autonomous. They require a data logger to initiate and retrieve a measurement. The data logger can initiate an event-based measurement.
In contrast, the CRS45x-series water-level recording sensors support event-based recording using built-in data-collection features.
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The CS45x-series pressure transducers are suitable for monitoring lake levels. However, be sure to submerge the pressure transducer below the frost line. If ice forms against the diaphragm, it will deform the diaphragm and cause permanent damage.
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No. A data logger must be used with the CS45x-series pressure transducers.
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No. The A200 is only used to configure the CS451 and CS456 pressure transducers.
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No. To prevent damage to the pressure transducer, it must be removed if freezing is anticipated.