Campbell Scientific CS450/CS455 Pressure Transducer - Manual (Page 8)

CS450/CS455 Pressure Transducer
Care should be taken when opening the package not to damage or cut the cable
jacket. If there is any question about damage having been caused to the cable
jacket, a thorough inspection is prudent.
The model number and pressure range is etched on the housing. Check this
information against the shipping documentation to ensure that the expected
model number and range were received.
Gauge pressure (Vented) devices must always have a desiccant tube attached.
New desiccant is blue in color. As the desiccant material absorbs water vapor,
it begins to turn pink, and eventually white when fully expired. Desiccant tubes
should be inspected regularly (i.e., every two months) and historical
information will help to baseline desiccant replacement requirements for a
given application/climate.
The desiccant tube is shipped with a black cap to cover the
vent hole. This cap MUST be removed prior to installation. CAUTION
Remember that although the CS450/CS455 is designed to be a rugged and
reliable device for field use, it is also a highly precise scientific instrument and
should be handled as such. There are no user-serviceable parts and any attempt
to disassemble the device will void the warranty.
2. Specifications
Power Requirements: 6 to 18 Vdc
Power Consumption: Quiescent current: < 80 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 Baud
RS-232 9600 Baud
Measurement Ranges:
Pressure (PSIG) Pressure (kPa) ft of fresh water
0 to 2.9 0 to 20 0 to 6.7
0 to 7.25 0 to 50 0 to 16.7
0 to 14.5 0 to 100 0 to 33.4
0 to 29 0 to 200 0 to 67
0 to 72.5 0 to 500 0 to 167
0 to 145 0 to 1000 0 to 334.5
Accuracy:
±0.1% FS TEB* or
±0.05% FS TEB**
Resolution: 0.0035% FS
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