Geokon 1133911 Instruction Manual Download Page 1

 

 

 

 

 

Instruction Manual 

Model 4500HT 

High Temperature

 

Vibrating Wire Piezometer

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

No part of this instruction manual may be reproduced, by any means, without the written consent of Geokon, Inc. 

The information contained herein is believed to be accurate and reliable. However, Geokon, Inc. assumes no responsibility for 

errors, omissions or misinterpretation. The information herein is subject to change without notification. 

 

Copyright © 2012, 2013 by Geokon, Inc. 

(Doc Rev A 6/13) 

 

Summary of Contents for 1133911

Page 1: ... by any means without the written consent of Geokon Inc The information contained herein is believed to be accurate and reliable However Geokon Inc assumes no responsibility for errors omissions or misinterpretation The information herein is subject to change without notification Copyright 2012 2013 by Geokon Inc Doc Rev A 6 13 ...

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Page 3: ...re are no warranties except as stated herein There are no other warranties expressed or implied including but not limited to the implied warranties of merchantability and of fitness for a particular purpose Geokon Inc is not responsible for any damages or losses caused to other equipment whether direct indirect incidental special or consequential which the purchaser may experience as a result of t...

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Page 5: ... FIGURE 1 MODEL 4500HT HIGH TEMPERATURE PRESSURE TRANSDUCER 1 FIGURE 2 4500HT PRESSURE TRANSDUCER ATTACHED TO COILED CABLE 3 FIGURE 3 GK405 READOUT BOX 6 FIGURE 4 MODEL 4700 VW TEMP SENSORTYPICAL CALIIBRATION SHEET 9 FIGURE 5 MODEL 4500 VW PRESSURE SENSORTYPICAL CALIIBRATION SHEET AT ROOM TEMP 10 FIGURE 6 MODEL 4500 VW PRESSURE SENSORTYPICAL CALIIBRATION SHEET AT 100C 11 FIGURE 7 MODEL 4500 VW PRE...

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Page 7: ...roduction and injection wells thereby optimizing the recovery rate and reducing the costs of the steam injection process In geothermal applications they offer a means for in situ and continuous monitoring of pressures and temperatures over extended periods of time Figure 1 Model 4500HT high temperature pressure transducer 2 PRINCIPLE OF OPERATION The sensor utilizes a sensitive stainless steel dia...

Page 8: ... signal conditioning and readout of the instrument Datalogging systems are also available for remote unattended data collection of multiple sensors Contact Geokon for additional information Calibration data are supplied with each piezometer for conversion of gage readings to engineering units and for temperature corrections see Section 5 3 INSTALLATION 3 1 Preliminary Tests Upon receipt of the pie...

Page 9: ...be terminated with a connector a transition to a regular instrumentation cable or other as determined by the customer Figure2 4500HT pressure transducer attached to coiled cable Cable lengths of several kilometers are possible and the frequency output signal is not affected by changing cable resistances caused by splicing changes of length terminal contact resistances etc nor by penetration of moi...

Page 10: ...4500HT pressure transducer the red and black leads are connected to the pressure transducer and the green and white leads are connected to the vibrating wire temperature sensor 4 2 Operation of the GK 403 Readout Box The GK 403 can store gage readings and also apply calibration factors to convert readings to engineering units Special GK 403 units can be provided that have a 12Volt pluck Consult th...

Page 11: ...a 5 pin plug for connecting to the socket on the bottom of the GK 404 enclosure The other end will consist of 5 leads terminated with alligator clips Note the colors of the alligator clips are red black green white and blue Only the red and black clips are used Connect first to the red and black leads of the 4500HT cable pressure and then to the green and white leads temperature Use the POS Positi...

Page 12: ...vibrating wire sensor by means of 1 Flying leads with alligator type clips when the sensor cable terminates in bare wires or 2 by means of a 10 pin connector The two components communicate wirelessly using Bluetooth a reliable digital communications protocol The Readout Unit can operate from the cradle of the Remote Module see Figure 3 or if more convenient can be removed and operated up to 20 met...

Page 13: ...re 4 showing the output of the temperature sensor at 5 different temperatures ranging from room temperature to 250 degrees C Also supplied are six calibration sheets from the pressure transducer showing the output readings versus pressure change at each one of these six temperature intervals Typical Calibration Sheets for the 4500HT transducer are shown in Figures 5 thru 9 In essence the data inte...

Page 14: ...rom the equation P R1 R0 G An example follows From the one Model 4700 temperature calibration sheet and the five pressure calibration sheets at five different temperatures Using an Excel Spreadsheet and the Chart Wizard Trendlines T 3 7511E 07 RT 2 0 03484 RT 124 98 Equation 1 R0 0 00193T2 1 885T 8367 Equation 2 G 8 61E 11T2 2 038E 09T 0 0002246 Equation 3 For example suppose that the reading RT o...

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Page 16: ...10 Figure 4 A Typical Model 4700 VW Temperature Sensor Calibration Sheet Figure 5 Typical Calibration Sheet at 25 C ...

Page 17: ...11 Figure 6 Typical Calibration Sheet at100 C ...

Page 18: ...12 Figure 7 Typical Calibration Sheet at 150 C ...

Page 19: ...13 Figure 8 Typical Calibration Sheet at 200 C ...

Page 20: ...14 Figure 9 Typical Calibration Sheet at 250 C ...

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