Specifications

Power requirements: 5 to 18 VDC
Power consumption  

Idle current:

< 50 µA

Measurement/communication current:

8 mA for 1-s measurement

Maximum peak current:

40 mA
Measurement time: Less than 1.5 s
Outputs: SDI-12 (version 1.3) 1200 bps
RS-232 9600 bps, 8 data bits, no parity, 1 stop bit, no flow control

Measurement ranges:

Pressure (psig)

Pressure (kPa)

Depth of fresh water

0 to 2.9

0 to 20

0 to 2 m (6.7 ft)

0 to 7.25

0 to 50

0 to 5.1 m (16.7 ft)

0 to 14.5

0 to 100

0 to 10.2 m (33.4 ft)

0 to 29

0 to 200

0 to 20.4 m (67 ft)

0 to 72.5

0 to 500

0 to 50.9 m (167 ft)

0 to 145

0 to 1000

0 to 102 m (334.5 ft)
Accuracy: ±0.1% full scale range TEB1 or
±0.05% full scale range TEB2
Water-level resolution: 0.0035% full scale range
Worst-case temperature resolution: 0.006 °C
Overpressure: Twice the pressure range
Dry storage temperature: –40 to 100 °C
CAUTION:

Sensor will be damaged if it is encased in frozen liquid.

Operating temperature: 0 to 60 °C
Temperature accuracy: ±0.2 °C
Maximum cable length  

SDI-12 (one transducer connected to a single terminal):


~475 m (1500 ft)

SDI-12 (10 transducers connected to a single terminal3):


60 m (200 ft)

RS-232:

60 m (200 ft)

Cable type:

5 Conductor, 26 AWG
Hytrel jacket
Body material: CS451 – 316L stainless steel
CS456 – titanium
Element material: CS451 – 316L stainless steel
CS456 – Hastelloy
Standard nose cone material: Delrin
Length: 213.36 mm (6.875 in)
Diameter: 21.34 mm (0.84 in)
Cable outer diameter: 0.589 cm (0.232 in) nominal
0.599 cm (0.236 in) maximum
Distance from pressure sensor interface (black line etched on housing) to:  

End of NPT fitting:

2.54 cm (1 in)

End of standard nose cone:

2.3 cm (0.9 in)

End of weighted nose cone:

9.9 cm (3.9 in)
Air gap  

Standard and weighted nose cone:

0.653 cm (0.257 in)

NPT fitting:

2.72 cm (1.07 in)
Weight:  

CS451:

0.17 kg (0.37 lb)

CS456:

0.10 kg (0.23 lb)

Cable:

0.421 kg/m (0.283 lb/ft)
Compliance: View the EU Declaration of Conformity at:
www.campbellsci.com/cs451
www.campbellsci.com/cs456

 

1 Total Error Band (TEB) includes the combined errors due to nonlinearity, hysteresis, nonrepeatability, and thermal effects over the compensated temperature range, per ISA S51.1.

2 0.05% full scale range accuracy not available in the 0 to 2.9 psig range.

3 Campbell Scientific recommends using separate terminals when possible.