Campbell Scientific CS451/CS456 Pressure Transducer - Manual (Page 7)

Table of Contents
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1. Introduction ................................................................. 1
2. Cautionary Statements ............................................... 1
3. Initial Inspection ......................................................... 1
4. Quickstart .................................................................... 2
5. Overview ...................................................................... 5
6. Specifications ............................................................. 6
7. Installation ................................................................... 8
7.1 Installation Considerations ................................................................... 8
7.1.1 Transducer Position ...................................................................... 8
7.1.2 Vent Tube ..................................................................................... 8
7.1.3 Appropriate Water Depth .............................................................. 9
7.1.4 Dislodging Bubbles ....................................................................... 9
7.2 Installation Procedure .......................................................................... 9
7.2.1 Lower to depth .............................................................................. 9
7.2.2 Secure the Transducer ................................................................... 9
7.2.2.1 Tie Wrap/Tape .................................................................... 9
7.2.2.2 Split Mesh Cable Grip ...................................................... 10
7.2.3 Measure the Initial Elevation ...................................................... 10
7.2.4 Offset Calculation ....................................................................... 10
7.3 Wiring ................................................................................................ 11
7.3.1 SDI-12 Datalogger Connections ................................................. 11
7.3.2 RS-232 Connections ................................................................... 11
7.3.3 A150/CWS900 ............................................................................ 12
7.4 Programming ...................................................................................... 12
7.4.1 CRBasic Programming ............................................................... 12
7.4.2 Edlog Programming .................................................................... 13
8. Operation ................................................................... 13
8.1 Configuration ..................................................................................... 13
8.1.1 PC Connection Using the A200 .................................................. 14
8.1.1.1 Driver Installation ............................................................ 14
8.1.1.2 A200 Wiring ..................................................................... 14
8.1.1.3 Powering the Sensor ......................................................... 15
8.1.1.4 Determining which COM Port the A200 has been
Assigned ....................................................................... 15
8.1.2 Device Configuration Utility (version 2.03 or higher) ................ 15
8.2 SDI-12 Commands ............................................................................. 16
8.3 Measuring Multiple SDI-12 Sensors .................................................. 17
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