Campbell Scientific AVW1 and AVW4 Interfaces for Vibrating Wire Sensors - Manual (Page 4)

TABLE OF CONTENTS
II
TABLES
2.2-1 Temperature vs. Thermistor Resistance, V, oC, and Linearization Error ................................... 2-1
3.2-1 Calibration Data for Sensor 3998................................................................................................ 3-2
FIGURES
2.2-1 Temperature Measurement Error at Three Temperatures as a Function of Lead Length ......... 2-3
2.2-2 Temperature Measurement Error on a 1000 Foot Lead ............................................................. 2-4
2.2-3 Temperature Measurement Error on a 3000 Foot Lead ............................................................. 2-4
2.2-4 Temperature Measurement Error on a 5000 Foot Lead ............................................................. 2-5
2.2-5 Thermistor Linearization Error .................................................................................................... 2-5
2.3-1 Direct Measurement of the Geokon Thermistor.......................................................................... 2-6
3.1-1 A Vibrating Wire Sensor.............................................................................................................. 3-1
4.1-1 The AVW1................................................................................................................................... 4-1
4.2-1 Hook up to AVW1 ....................................................................................................................... 4-1
4.3-1 Well Monitoring Example ............................................................................................................ 4-2
5.1-1 The AVW4................................................................................................................................... 5-1
5.2-1 Hook up for AVW4 ...................................................................................................................... 5-2
A.1
Pressure Conversion Chart......................................................................................................... A-1
B.1-1 AVW1 Schematic ........................................................................................................................ B-1
B.1-2 AVW1 Stuffing Chart................................................................................................................... B-2
B.1-3 AVW4 Schematic ........................................................................................................................ B-3
B.1-4 AVW4 Schematic ........................................................................................................................ B-4
B.1-5 AVW4 Stuffing Chart................................................................................................................... B-5