RETIRED ›
This product is no longer available and has been replaced by: CS451. Some accessories, replacement parts, or services may still be available.
CS450-L Pressure Transducer
Stainless Steel
Ideal for long-term deployment in harsh conditions
weather applications water applications energy applications gas flux & turbulence applications infrastructure applications soil applications

Overview

The CS450 is a pressure transducer for water level measurements in canals, wells, ponds, harbors, lakes, streams and tanks. It has a stainless-steel case that can be submerged in most canals, wells, ponds, lakes, and streams. The CS450 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 dataloggers.

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Benefits and Features

  • Quality construction ensures product reliability
  • Rugged stainless-steel case protects piezoresistive sensor
  • Compatible with most Campbell Scientific dataloggers
  • Fully temperature-compensated
  • Low-power sleep state between measurements reduces power consumption
  • Optional weighted nose cone facilitates submersion
  • NPT fitting allows it to be used in closed-pipe applications
  • Quick shipment after receipt of order (ARO)
  • Compatible with the A150 Desiccated Case, which allows it to be connected to the CWS900 and used in a wireless sensor network

The "-L" on a product model indicates that the cable length is specified at the time of order.

Images

Detailed Description

The CS450 consists of a piezoresistive sensor and a temperature sensor housed in a 316L stainless-steel 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 CS450 has several pressure range options and two accuracy options . 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 CS450 to be connected to a CWS900 Wireless Sensor Interface (for use in a wireless sensor network) or to be connected to a prewired enclosure (see Ordering Information).

Specifications

Measurement Time < 1.5 s
Outputs SDI-12 (version 1.3) 1200 bps; RS-232 9600 bps
Resolution 0.0035% FS
Operating Temperature -10° to +80°C
Compensated Temperature 0° to 60°C
Temperature Accuracy ±0.2°C
Overpressure 2 x pressure range
Power Requirements 6 to 18 Vdc
Accuracy with Standard Accuracy Option ±0.1% FS TEB (Includes the combined errors due to nonlinearity, hysteresis, nonrepeatability, and thermal effects over the compensated temperature range, per ISA S51.1.)
Accuracy with High Accuracy Option ±0.05% FS TEB (The high accuracy [±0.05% FS] option is not available for the 0 to 2.9 psig range option.)
Cable Type Hytrel Jacket, five conductor, 26 AWG
NPT Fitting 1/4-in. NPS
Top Cone Material Delrin
Body Material 316L stainless steel
Element Material 316L stainless steel
Diameter 2.13 cm (0.84 in.)
Length 21.34 cm (8.4 in.)
Distance
  • 2.86 cm (1.13 in.) from black line etched on housing to end of NPT fitting
  • 4 cm (1.58 in.) from black line etched on housing to end of standard nose cone
  • 11.59 cm (4.56 in.) from black line etched on housing to end of weighted nose cone
Weight without Cable 0.18 kg (0.40 lb)
Cable Weight 0.421 kg/m (0.283 lb/ft)
Weight 0.211 kg (0.465 lb) for 25414 Weighted Nose Cone

Power Consumption

Quiescent < 80 µA
Measurement/Communication 8 mA (1-s measurement)
Maximum 40 mA

Pressure Measurement Range

Option -2 ≤ 2.9 psig (20 kPa)
Option -7 ≤ 7.25 psig (50 kPa)
Option -14 ≤ 14.5 psig (100 kPa)
Option -29 ≤ 29 psig (200 kPa)
Option -72 ≤ 72.5 psig (500 kPa)
Option -145 ≤ 145 psig (1000 kPa)

Depth of Fresh Water Measurement Range

Option -2 ≤ 2.0 m (6.7 ft)
Option -7 ≤ 5.1 m (16.7 ft)
Option -14 ≤ 10.2 m (33.4 ft)
Option -29 ≤ 20.4 m (67 ft)
Option -72 ≤ 50.9 m (167 ft)
Option -145 ≤ 102 m (334.5 ft)

Maximum Cable Length

SDI-12 (1 sensor connected to a single port) ~457 m (1500 ft)
SDI-12 (10 sensors connected to a single port) 60 m (200 ft)
RS-232 60 m (200 ft)

Compatibility

Desiccated Case

The CS450 can be used with the A150. The A150 is a small, self-contained junction box that allows the CS450 to be connected to a continuation cable, a prewired-enclosure connector, or a CWS900-series wireless-sensor connector. Connection to a CWS900-series interface allows the CS450 to be part of a wireless sensor network.

Datalogger Considerations

Compatible Contemporary Dataloggers

CR200(X) Series CR800/CR850 CR1000 CR3000 CR9000X

Compatible Retired Dataloggers

CR500 CR510 CR10 CR10X 21X CR23X CR9000 CR5000 CR7X

Case Studies

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