Geokon 4450 Скачать руководство пользователя страница 6 | Manualshive

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FIGURES

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GK-404 ..................................................................................................................13

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TABLES

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ESISTANCE VERSUS

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EQUATIONS

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Содержание 4450

Страница 1: ...s 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 1994 2017 by Geokon Inc Doc Rev P 11 27 2017 ...

Страница 2: ......

Страница 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...

Страница 4: ......

Страница 5: ... 2 Sensors with Bare Leads 14 3 2 3 Operating the GK 405 14 3 3 GK 403 READOUT BOX OBSOLETE MODEL 15 3 3 1 Connecting Sensors with 10 pin Bulkhead Connectors Attached 15 3 3 2 Connecting Sensors with Bare Leads 15 3 3 3 Operating the GK 403 15 3 4 MEASURING TEMPERATURES 15 4 DATA REDUCTION 16 4 1 DEFORMATION CALCULATION 16 4 2 TEMPERATURE CORRECTION 17 4 3 ENVIRONMENTAL FACTORS 18 5 TROUBLESHOOTIN...

Страница 6: ...S RANGES OF 50 MM 2 AND BELOW 24 FIGURE 13 DIMENSIONS RANGES OF 100 MM 4 AND ABOVE 25 TABLES TABLE 1 MODEL 4450 READING VERSUS POSITION IN THE RANGE 8 TABLE 2 ENGINEERING UNITS CONVERSION MULTIPLIERS 16 TABLE 3 THERMAL COEFFICIENT CALCULATION CONSTANTS 17 TABLE 4 SAMPLE RESISTANCE 21 TABLE 5 RESISTANCE WORK SHEET 21 TABLE 6 THERMISTOR RESISTANCE VERSUS TEMPERATURE 22 TABLE 7 MODEL 4450 DISPLACEMEN...

Страница 7: ...rom Geokon Figure 1 Model 4450 Displacement Transducer 2 INSTALLATION 2 1 Preliminary Tests CAUTION Do not rotate the transducer shaft of the crackmeter more than 180 degrees This may cause irreparable damage to the instrument The alignment pin on the transducer shaft and slot on the body serve as a guide for alignment Never extend the crackmeter beyond its working range Before installing the gage...

Страница 8: ...d and black gage leads to the readout box Select position B See Section 3 for readout instructions 4 Gently pull on the transducer housing until the desired reading is obtained see Table 1 Do not extend the shaft further than the range of the gage The transducer also may be damaged if it is allowed to free fall through its stroke 5 Hold the desired reading and secure the cable side of the gage aga...

Страница 9: ...l as high safety factor systems further tighten the nut until the tube will not turn by hand or move axially in the fitting 3 Mark the nut at the six o clock position Figure 3 Make a Mark at Six O clock 4 While holding the fitting body steady tighten the nut one and one quarter turns until the mark is at the 9 o clock position Note For 1 16 1 8 3 16 and 2 3 and 4 mm fittings tighten the nut three ...

Страница 10: ...3 Inspect the ferrules for damage and replace if necessary If the ferrules are replaced the connector should be treated as a new assembly Refer to the section above for installation instructions 4 Reassemble the fitting by inserting the tube with preswaged ferrules into the fitting until the front ferrule seats against the fitting body Figure 6 Ferrules Seated Against Fitting Body 5 While holding ...

Страница 11: ...illed with epoxy to waterproof the connections When properly made this type of splice is equal or superior to the cable itself in strength and electrical properties Contact Geokon for splicing materials and additional cable splicing instructions Cables may be terminated by stripping and tinning the individual conductors and then connecting them to the patch cord of a readout box Alternatively a co...

Страница 12: ...nt cable exits the structure being monitored The enclosure has a removable top to allow the customer to service the components or replace the board in the event that the unit is damaged by a lightning strike A connection is made between the enclosure and earth ground to facilitate the passing of transients away from the displacement transducer See Figure 8 Plasma surge arrestors can be epoxied int...

Страница 13: ...ors with blue representing the shield bare To turn the GK 404 on press the ON OFF button on the front panel of the unit The initial startup screen will display Geokon Inc GK 404 verX XX After approximately one second the GK 404 will start taking readings and display them based on the settings of the POS and MODE buttons The unit display from left to right is as follows The current Position Set by ...

Страница 14: ...he male connector until it locks into place 3 2 2 Sensors with Bare Leads Attach the GK 403 2 flying leads to the bare leads of a Geokon vibrating wire sensor by connecting each of the clips on the leads to the matching colors of the sensor conductors with blue representing the shield bare 3 2 3 Operating the GK 405 Press the button labeled POWER ON BLUETOOTH A blue light will begin blinking signi...

Страница 15: ...e one or two digits while reading 4 The thermistor reading will be displayed above the gage reading in degrees centigrade 5 Press the Store button to record the value displayed If the no reading displays or the reading is unstable see Section 5 for troubleshooting suggestions The unit will automatically turn off after approximately two minutes to conserve power 3 4 Measuring Temperatures All vibra...

Страница 16: ...ion see Section 2 2 G is the calibration factor usually millimeters or inches per digit F is an optional engineering units conversion factor see Table 2 From To Inches Feet Millimeters Centimeters Meters Inches 1 12 0 03937 0 3937 39 37 Feet 0 0833 1 0 003281 0 03281 3 281 Millimeters 25 4 304 8 1 10 1000 Centimeters 2 54 30 48 0 10 1 100 Meters 0 0254 0 3048 0 001 0 01 1 Table 2 Engineering Units...

Страница 17: ...determined that the thermal coefficient K changes with the position of the transducer shaft Hence the first step in the temperature correction process is to determine the proper thermal coefficient based on the following equation K R1 TM TB G Equation 4 Thermal Coefficient Calculation Where R1 is the current reading TM is the multiplier from Table 3 TB is the constant from Table 3 G is the calibra...

Страница 18: ...97 168 Dcorrected 10 165 mm 4 3 Environmental Factors Since the purpose of the displacement transducer installation is to monitor site conditions factors that may affect these conditions should always be observed and recorded Seemingly minor effects may have a real influence on the behavior of the structure being monitored and may give an early indication of potential problems Some of these factor...

Страница 19: ...19 Figure 11 A Typical Calibration Sheet ...

Страница 20: ...r shaft is fully retracted with the alignment pin inside the alignment slot as shown in Figure 1 the readings will likely be unstable because the vibrating wire is out of its specified range Is there a source of electrical noise nearby Likely candidates are generators motors arc welding equipment high voltage lines etc If possible move the instrument cable away from power lines and electrical equi...

Страница 21: ... infinite infinite infinite White infinite infinite N A 3000Ω at 25 C infinite Green infinite infinite 3000Ω at 25 C N A infinite Shield infinite infinite infinite infinite N A Table 4 Sample Resistance Vibrating Wire Sensor Lead Grid SENSOR NAME Red Black White Green Shield Red Black White Green Shield Table 5 Resistance Work Sheet ...

Страница 22: ...2 83 107 9 123 77 66K 36 8006 4 1363 44 331 5 84 105 2 124 72 81K 35 7618 5 1310 45 321 2 85 102 5 125 68 30K 34 7252 6 1260 46 311 3 86 99 9 126 64 09K 33 6905 7 1212 47 301 7 87 97 3 127 60 17K 32 6576 8 1167 48 292 4 88 94 9 128 56 51K 31 6265 9 1123 49 283 5 89 92 5 129 53 10K 30 5971 10 1081 50 274 9 90 90 2 130 49 91K 29 5692 11 1040 51 266 6 91 87 9 131 46 94K 28 5427 12 1002 52 258 6 92 85...

Страница 23: ...0 F Frequency Range standard model 1200 2800 Hz Frequency Range slim stick model 1700 3600 Hz Coil Resistance 180 Ω 10 Ω Cable Type Two twisted pair four conductor 22 AWG Foil shield PVC jacket nominal OD 6 3 mm 0 250 Dimensions See Sections A 3 and A 4 for dimensions Table 7 Model 4450 Displacement Transducer Specifications Notes Minimum greater resolution possible depending on readout Depends on...

Страница 24: ...24 B 3 Dimensions Drawing for Ranges of 50 mm 2 and Below Figure 12 Dimensions Ranges of 50 mm 2 and Below ...

Страница 25: ...25 B 4 Dimensions Drawing for Ranges of 100 mm 4 and Above Figure 13 Dimensions Ranges of 100 mm 4 and Above ...

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