Geokon GK-404 Instruction Manual Download | Manualshive

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©2019, GEOKON. All rights reserved.

Document Revision: O | Release date: 11/1

5

/19

Model GK-404

Vibrating Wire Readout

Instruction Manual

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Summary of Contents for GK-404

Page 1: ... 2019 GEOKON All rights reserved Document Revision O Release date 11 15 19 Model GK 404 Vibrating Wire Readout Instruction Manual ...

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Page 3: ...ON 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 the instal lation or use of the product The buyer s sole remedy for any breach of this agreement by GEOKON or any breach of any warranty by GEOKON shall not exceed the purchase price paid by the purchaser to GEOKON f...

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Page 5: ...INTENANCE 6 4 1 LOW BATTERY INDICATION AND AUTO OFF 6 4 2 BATTERY REPLACEMENT 6 4 3 CLEANING 6 4 4 CALIBRATION 6 5 TROUBLESHOOTING 7 6 LIMITS OF LIABILITY 8 APPENDIX A SPECIFICATIONS 9 A 1 VIBRATING WIRE READOUT 9 A 2 TEMPERATURE READOUT 9 A 3 PHYSICAL 9 A 4 TRANSDUCER PLUG PIN OUT 9 APPENDIX B THERMISTOR TEMPERATURE DERIVATION 10 B 1 THERMISTOR RESISTANCE FOR 3KΩ 10 B 2 THERMISTOR RESISTANCE FOR ...

Page 6: ...II FIGURES FIGURE 1 LEMO CONNECTOR 2 FIGURE 2 NECK STRAP CONNECTOR 2 FIGURE 3 CONNECTOR ON GK 404 2 FIGURE 4 DOWNWARD POINTING CONNECTOR 3 FIGURE 5 NECK STRAP CONNECTIONS 3 ...

Page 7: ...IFICATIONS 4 TABLE 3 VIBRATING WIRE READOUT 9 TABLE 4 TEMPERATURE READOUT 9 TABLE 5 PHYSICAL SPECIFICATIONS 9 TABLE 6 TRANSDUCER PLUG PINOUT 9 TABLE 7 THERMISTOR RESISTANCE FOR 3KΩ 10 TABLE 8 THERMISTOR RESISTANCE FOR 8 2KΩ 11 TABLE 9 THERMISTOR RESISTANCE FOR 10KΩ 12 ...

Page 8: ...IV EQUATIONS EQUATION 1 THERMISTOR RESISTANCE FOR 3KΩ 10 EQUATION 2 THERMISTOR RESISTANCE FOR 8 2KΩ 11 EQUATION 3 THERMISTOR RESISTANCE FOR 10KΩ 12 ...

Page 9: ...apable of operating for more than 20 hours continuously on two AA batteries It is designed for the readout of all Geokon vibrating wire gauges and transducers and is capable of displaying the reading in either digits frequency Hz period μs or microstrain με The GK 404 also displays the temperature of the transducer embedded thermistor with a resolution of 0 1 C ...

Page 10: ...e carrying case To connect the nylon strap to the carrying case clip both ends of the strap onto the plastic loops on the sides of the case Connect the neck strap to the GK 404 as follows 1 Locate the plastic connector on the neck strap see the figure below FIGURE 2 Neck Strap Connector 2 Place the larger circular hole onto the plastic nub on the back of the GK 404 with the bottom of the connector...

Page 11: ... GK 404 The individual leads can be identified as shown in the wiring diagram in Table 1 below Each sensor is read in turn by connecting either the red or black clip to the lead marked common The black or red clip must be connected to the leads marked 1 2 3 etc The blue clip should be connected to the cable shield wire and the green and white clips to the cable leads marked thermistor 1 White s bl...

Page 12: ...ing A F has different preprogrammed parameters that are optimized for certain instruments Each option also has different scaling and processing characteristics The table below details the correct position to use with the various models sold by GEOKON TABLE 2 Position Specifications 3 2 MODE BUTTON Pressing the Mode button will select the format of the vibrating wire reading The available options a...

Page 13: ...select automatic shutoff after five minutes 15 minutes or 30 minutes The Auto Off may be disabled so that the GK 404 will only shut off if the front panel On Off button is pressed The Auto Off will activate only if no front panel buttons are pressed for the specified amount of time The timer will reset each time a button is pressed When the GK 404 powers down all settings are saved to the internal...

Page 14: ...actory To replace the batteries use a 1 Phillips screwdriver to remove the battery compartment cover located at the back of the readout Install a new set of batteries following the polarities indicated inside the battery compartment Reinstall the battery compartment cover Never use two different types of batteries or mix old batteries with new This could cause batteries to leak and permanently dam...

Page 15: ...r of readout SYMPTOM VIBRATING WIRE GAUGE READING UNSTABLE Improper position selected Verify gauge model number against the recommended setting see Table 2 in Section 3 1 If position setting is correct the gauge is either marginal or there may be a strong source of electromagnetic interference nearby SYMPTOM THERMISTOR MEASUREMENT SHOWS DASHES Check alligator clip connections to thermistor leads I...

Page 16: ...lems be double checked using another measurement system In addition the readout is provided as is and GEOKON assumes no responsibility as to results performance or interpretation associated with the GK 404 vibrating wire readout Warranty shall cover parts except batteries and labor for a period of one year from the date of purchase In addition there is a one month grace period to the warranty for ...

Page 17: ...ype Thermistor YSI 44005 Dale 1C3001 B3 Alpha 13A3001 B3 Sensor Accuracy 0 5 Celsius Measurement Range 20 to 50 Celsius Measurement Resolution 0 1 Celsius Measurement Accuracy 1 0 of Full Scale Display 16 columns x two lines LCD Dimensions 120 mm 4 72 x 65 mm 2 56 x 22 mm 0 87 Weight Approx 145 grams 5 1 ounces with two AA alkaline batteries installed Temperature Range 20 to 50 Celsius Battery Two...

Page 18: ... 43 331 5 84 102 5 125 88 46K 38 8417 3 1363 44 321 2 85 99 9 126 82 87K 37 8006 4 1310 45 311 3 86 97 3 127 77 66K 36 7618 5 1260 46 301 7 87 94 9 128 72 81K 35 7252 6 1212 47 292 4 88 92 5 129 68 30K 34 6905 7 1167 48 283 5 89 90 2 130 64 09K 33 6576 8 1123 49 274 9 90 87 9 131 60 17K 32 6265 9 1081 50 266 6 91 85 7 132 56 51K 31 5971 10 1040 51 258 6 92 83 6 133 53 10K 30 5692 11 1002 52 250 9 ...

Page 19: ... 9 216 782 875 19 99 0 01 0 00 134 64 170 4 903 117 837 170 09 0 09 0 03 8200K 25 9 012 731 893 25 00 0 00 0 00 122 1 175 4 805 110 927 175 08 0 08 0 03 6721 54 30 8 813 684 514 30 01 0 01 0 00 110 95 180 4 709 104 426 180 07 0 07 0 02 5540 74 35 8 620 640 478 35 01 0 01 0 00 100 94 185 4 615 98 261 185 10 0 10 0 04 4592 40 8 432 599 519 40 02 0 02 0 01 92 086 190 4 523 92 512 190 09 0 09 0 03 382...

Page 20: ...7 0 138 119 4 170 63 3 202 36 2 234 18 971 11 4 725 43 1 480 75 555 3 107 241 1 139 116 9 171 62 1 203 35 6 235 18 090 12 4 543 44 1 432 76 539 9 108 235 3 140 114 5 172 61 0 204 35 1 236 17 255 13 4 368 45 1 385 77 525 0 109 229 7 141 112 1 173 59 9 205 34 5 237 16 463 14 4 201 46 1 340 78 510 6 110 224 3 142 109 8 174 58 8 206 33 9 238 15 712 15 4 041 47 1 297 79 496 7 111 219 0 143 107 5 175 57...

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Page 24: ...GEOKON 48 Spencer Street Lebanon New Hampshire 03766 USA Phone 1 603 448 1562 Email info geokon com Website www geokon com GEOKON is an ISO 9001 2015 registered company ...

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