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Campbell Scientific - Model CS456 -Titanium Pressure Transducer
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.
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).
- 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)
- 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:
- 2.54 cm (1 in.)
- Distance from black line etched on housing to end of NPT fitting
- 2.3 cm (0.9 in.)
- Distance from black line etched on housing to end of standard nose cone
- 9.9 cm (3.9 in.)
- Distance from black line etched on housing to end of weighted nose cone
- 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 2.9 psig
- The high accuracy (±0.05% FS) option is not available for the 0 to 2.9 psig range option.
- 0 to 20 kPa
- The high accuracy (±0.05% FS) option is not available for the 0 to 2.9 psig range option.
- 0 to 5.1 m (16.7 ft):
- 0 to 7.25 psig
- 0 to 50 kPa
- 0 to 10.2 m (33.4 ft):
- 0 to 14.5 psig
- 0 to 100 kPa
- 0 to 20.4 m (67 ft):
- 0 to 29 psig
- 0 to 200 kPa
- 0 to 50.9 m (167 ft):
- 0 to 72.5 psig
- 0 to 500 kPa
- 0 to 102 m (334.5 ft):
- 0 to 145 psig
- 0 to 145 psig
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:
- ~457 m (1500 ft)
- 1 sensor connected to a single port
- 60 m (200 ft)
- 10 sensors connected to a single port
- 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.)