Campbell CS100 Manuale delle Istruzioni Scaricare il pdf (Pagina 9)

CS100 Barometric Pressure Sensor

1. Introduction

The CS100 is a capacitive pressure transducer that uses the Setra's electrical

capacitor technology for barometric pressure measurements over the 600 to

1100 millibar range. The transducer’s compact and rugged polyester

housing with stainless backplate contains two closely-spaced, parallel,

electrically-isolated metallic surfaces. One of the surfaces is essentially a

diaphragm constructed of a Setra’s proprietary compound of fused glass and

ceramic (Setraceram™) or a low-hysteresis material, such as 17-4 PH SS.

The diaphragm is capable of detecting a slight change in the applied

pressure, which is then converted to an analogue voltage signal by Setra’s

custom Application Specific Integrated Circuit (ASIC). The analogue signal

generated by the barometer can be directly measured by a Campbell

Scientific datalogger, such as 21X, CR7, CR500, CR510, CR10(X), CR23X,

CR200 series, CR1000, CR3000, CR800, CR850, CR5000, and CR9000(X).

The CS100 is supplied in the triggered mode, in which the datalogger

switches 12 VDC power to the barometer before the measurement. The

datalogger then powers down the barometer after the measurements to

conserve power.

Other measurement range options such as 500 to 1100 millibar, and 800 to

1100 millibar are also available. Please contact Campbell Scientific, Inc. for

ordering these special versions.

Figure 1. CS100 Barometric Pressure Sensor

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Campbell CS100 Manuale delle Istruzioni Pagina 9