V1.0 Oct 2020
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THERMISTOR PROBE
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Page 1: ...V1 0 Oct 2020 I N S T R U C T I O N M A N U A L THERMISTOR PROBE STRING ...
Page 2: ...RKINGS 6 4 0 DELIVERY 7 4 1 Packaging 7 4 2 Handling 7 4 3 Inspection 7 4 4 Storage 7 5 0 INSTALLATION 8 6 0 DATA HANDLING 9 6 1 Taking readings 9 6 1 1 Portable Readouts 9 6 1 2Data loggers 9 6 2 Data reduction 10 7 0 TROUBLESHOOTING 11 8 0 SPECIFICATION 12 9 0 SPARE PARTS 12 10 0 RETURN OF GOODS 13 11 0 LIMITED WARRANTY 14 ...
Page 3: ... series of sensors mounted along a multi core cable which provide a temperature profile and is manufactured to customer requirements in terms of the number and spacing of each sensor Applications such as but not limited to measuring temperature in the following Concrete particularly RCC dams Soil Tundra Rock Ice caps Glaciers Landfills Particular features of Geosense Thermistors are Fast response ...
Page 4: ...e Steinhart Hart equation T 1 A B LnR C LnR 3 273 2 Where T Temperature in degrees Centigrade LnR Natural log of Thermistor resistance in ohms Readings can be made with a wide range of readout units including the VWR 1 MP12 which display the reading directly in degrees Celsius or resistance Ohms or by an ohmmeter in combination with look up tables Readings can also be automated using an automatic ...
Page 5: ...es The Electromagnetic Compatibility Directive 2014 30 EU Restriction on the use of certain Hazardous Substances RoHS2 2017 2102 EU Waste electrical electronic equipment WEEE 2012 19 EU Equipment description Thermistors Thermistor Strings Make Brand Geosense Model Numbers TP 1 TP 2 TS 1 TS 2 TS 3 TS 4 TS 5 TS 6 Compliance has been assessed with reference to the following harmonised standard EN 613...
Page 6: ...dividual Serial Number Manufacturers Name Address CE Mark Markings on Geosense Thermistors varies depending on whether it is a Probe Type or a Thermistor String The Probe Type only has a label on the end of the able identifying its reference S N Label A The Thermistor String has an additional label label B Label A Label B ...
Page 7: ...torage or onward transportation Cable should also be handled with care Do not allow it to be damaged by sharp edges rocks for example and do not exert force on the cable as this may damage the internal conductors and could render an installation useless 4 1 Packaging Thermistors are packed for transportation to site Packaging is suitably robust to allow normal handling by transportation companies ...
Page 8: ... RED WHITE 10 RED GREEN 11 RED BLUE 12 RED YELLOW 13 RED BROWN 14 RED ORANGE 15 GREEN WHITE 16 GREEN BLUE 17 GREEN YELLOW 18 GREEN BROWN 19 GREEN ORANGE 20 WHITE BLUE 21 WHITE YELLOW 22 WHITE BROWN 23 WHITE ORANGE 24 BLUE YELLOW 25 BLUE BROWN They should be installed in accordance with the specific project requirement It is therefore important that the correct reference is made recorded for each s...
Page 9: ...e Geosense VWR1 portable readout 1 Connect signal cables from the Thermistor to the GREEN WHITE terminals 2 Press the On Off button to switch the unit on Press it again to acquire a reading from the connected instrument 3 The readout displays the temperature reading in both resistance Ohms and degrees C For more details see the VWR 1 readout manual 4 Press and hold down the On Off button to switch...
Page 10: ...342 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 9...
Page 11: ...i meter which are readily available in the market RESISTANCE OF THE THERMISTOR STEP 1 Set the range to 20kΩ or Ω if using a multi meter which has automatic ranging STEP 2 Connect the T green conductor to the red lead on the multi meter and the T white to the black lead on the multi meter The readings will be dependent on the temperature as below 10 C 5 971kΩ 5971Ω 15 C 4 714kΩ 4714Ω 20 C 3 478kΩ 3...
Page 12: ...2 ºC Resolution 0 1 ºC 0 1 ºC Housing PVC Stainless steel Housing diameter mm 31 16 Housing length mm 85 85 Cable diameter mm 7 7 Cable Type 900 VW Sensor with Foil Screen Drain Wire String STRINGS Model TS 1 TS 2 TS 3 TS 4 TS 5 TS 6 Temp range 50 to 150 ºC Accuracy 0 2 ºC Resolution 0 1 ºC Points 1 2 3 4 5 7 8 10 11 15 16 25 Cable diameter 7 8 9 9 8 11 4 12 5 14 8 Cable Type 910 Multi Core with F...
Page 13: ...arranty Conditions This covers defects which arise as a result of a failure in design or manufacturing It is a condition of the warranty that the Thermistor must be installed and used in accordance with the manufacturer s instructions and has not been subject to misuse In order to make a warranty claim contact Geosense and request a Returned Equipment Report Form QF034 Tick the warranty claim box ...
Page 14: ...o be defective upon inspection at the factory Shipment of defective part or parts to the factory shall be at the expense of the Purchaser Return shipment of repaired replaced part or parts covered by this warranty shall be at the expense of the Manufacturer Unauthorised alteration and or repair by anyone which causes failure of the unit or associated components will void this LIMITED WARRANTY in i...
Page 15: ...15 V1 0 Oct 2020 NOTES ...
Page 16: ...16 V1 0 Oct 2020 ...
