RST Instruments VW2100-DP - Page 4

VW2100 Vibrating Wire Piezometer
Instruction Manual
ELM0005P
RST Instruments Ltd.
Page iv
APPENDIX B : CASAGRANDE STYLE FILTER ASSEMBLY .................................................... 30
APPENDIX C : VW2100-DP (DRIVE POINT) PIEZOMETER................................................... 31
APPENDIX D : USING THE SECOND ORDER POLYNOMIAL TO IMPROVE THE ACCURACY OF THE
CALCULATED PRESSURE ........................................................................................... 32
APPENDIX E : THERMISTOR TEMPERATURE DERIVATION ................................................... 33
APPENDIX F REFERENCES ............................................................................................... 34
LIST OF FIGURES
Figure 1-1 Vibrating Wire Piezometer (0.7 MPa) .................................................................. 5
Figure E-1 Thermistor Resistance versus Temperature ....................................................... 33
LIST OF EQUATIONS
Equation 1 Linear equation ...................................................................................................... 11
Equation 2 Second order polynomial equation ......................................................................... 12
Equation E-1 Convert Thermistor Resistance to Temperature ................................................. 33
LIST OF TABLES
Table 7-1 General Specifications for All Models ................................................................. 27
Table 7-2 Specifications for Individual Models ................................................................... 28