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Model UG20DL

Underwater Thickness Gauge

Operating Instructions

Содержание UG20DL

Страница 1: ...0 en Model UG20DL Underwater Thickness Gauge Operating Instructions...

Страница 2: ...y network which supplies buildings used for domestic purposes These operating instructions are available for download on our website www elcometerndt com The following trademark is a registered tradem...

Страница 3: ...adings 14 9 ThruPaint Measurement Technique 15 10 Measurement Options 15 11 Measurement Recording your Readings 17 12 Data Transfer Software 19 13 Storage 20 14 Maintenance 21 15 Technical Specificati...

Страница 4: ...being measured The Model UG20DL includes a data logging memory facility which allows readings to be stored in the memory before being downloaded to a computer 1 1 STANDARDS Your gauge can be used in a...

Страница 5: ...HOUSING SEALS The housing is sealed by o rings one on each end cap which require meticulous care In order to maintain a watertight seal the o rings and their mating surfaces must be clean free of fore...

Страница 6: ...eries from the gauge if it is to remain unused for a long period of time This will prevent damage to the gauge in the event of malfunction of the batteries 3 2 CHOOSING THE TRANSDUCER When you purchas...

Страница 7: ...he sound echoes back into the transducer When the transducer is placed against the material being measured it is the area directly beneath the centre of the wearface that is being measured 3 4 SWITCHI...

Страница 8: ...itted to the gauge dual element type or single element membrane type Method Action Notes Press and Short Hold Enters into or exits out of the menu struc ture If entering into the menu structure Enter...

Страница 9: ...n it is switched on and then every 30 seconds This provides visual confirmation of the the settings at any time without having to scroll through the menus to find the values of the settings The gauge...

Страница 10: ...measured until a new measurement is made Note When the battery voltage is low the entire display will begin to flash When this occurs the batteries should be replaced 6 MEASUREMENT MODES Your gauge ha...

Страница 11: ...HO ECHO MODE E E THRUPAINT This mode measures between two reflections This technique is commonly used to eliminate errors from surface coatings and also to make measurements in multiple layered materi...

Страница 12: ...not set correctly all of the measurements the gauge makes will be in error by some fixed number When the zero point of the transducer is set this fixed error value is measured and automatically correc...

Страница 13: ...the current velocity setting in your gauge Disregard the value displayed it is not important What is important is accurately performing these steps to ensure reliability of the zero calculation 4 Use...

Страница 14: ...transducer from the zero disk 7 4 CALIBRATING In order for the gauge to make accurate measurements it must be calibrated to the sound velocity of the material being measured Different types of materia...

Страница 15: ...the Gauge on page 11 Select units see Units on page 16 8 2 PROCEDURE 1 Apply couplant For the gauge to work correctly there must be no air gap between the transducer and the sur face of the material t...

Страница 16: ...detection mode The combination of using both modes is ideal for the advanced inspectors needs 9 2 Setting Up ThruPaint Mode When you select the appropriate transducer type from the list of probes stor...

Страница 17: ...trying to measure a material that is hard to penetrate due to the material type or the overall thickness of the material and when locating fine pits or flaws In these instances increase the gain to s...

Страница 18: ...ow however it must not start or end with a special character Once a start and end ID are entered into the gauge and the log created the gauge automatically generates all the identifiers within that ra...

Страница 19: ...at is larger than the stated boundaries an error message OUT OF MEMORY is displayed 11 2 2 Auto Increment Direction The Auto Increment function allows you to specify which direction to advance the cur...

Страница 20: ...g see Measurement Taking Readings on page 14 4 Press and release the control button The measurement value and data is saved to the current storage location of the data file The storage location is the...

Страница 21: ...ires an available communications port in order to transfer data to and from the gauge NDT Link supports COM1 COM2 COM3 and COM4 12 1 3 USB to Serial Converter Some newer laptop computers do not have s...

Страница 22: ...l Elcometer NDT supplier or directly to Elcometer NDT The warranty will be invalidated if the instrument has been opened 14 2 TRANSDUCER The transducer will wear with repeated use Transducer life depe...

Страница 23: ...styrene polyurethane PVC stainless steel and steel Weight including batteries 680 g 1 5 lbs Dimensions Length x Dia 229 mm x 60 33 mm 9 0 x 2 375 Gauge Operating Temperature 29 C to 60 C 20 F to 140 F...

Страница 24: ...e limitation or exclusion may not apply to you However any implied warranty of merchantability or fitness is limited to the two year duration of this written warranty This warranty gives you specific...

Страница 25: ...ing measured such that a strong stable echo is received by the gauge Several factors affect the strength of ultrasound as it travels These are outlined below 18 1 INITIAL SIGNAL STRENGTH The stronger...

Страница 26: ...High penetration plastics and castings PULSE ECHO P E COATING OFF Cast iron 1MHz to 5MHz transducer Cast aluminium 10MHz transducer Plastics typically require lower frequency trans ducers depending o...

Страница 27: ...acts on light the beam becomes diffused and scattered in all directions In addition to posing obstacles to measurement rough surfaces contribute to excessive wear of the transducer particularly in sit...

Страница 28: ...e material decreases In most applications with surface temperatures less than approximately 100 C 200 F no special procedures are required At temperatures above 100 C 200 F the change in sound velocit...

Страница 29: ...5232 0 206 PVC 2388 0 094 Copper 4674 0 184 Quartz Glass 5639 0 222 Epoxy Resin 2540 0 100 Approx Rubber Vulcan ised 2311 0 091 German Silver 4750 0 187 Silver 3607 0 142 Glass Crown 5664 0 223 Steel...

Страница 30: ...the STORE top level menu item is replaced by MEMOFF DIRECT NORTH Part of the data logger The submenu item selected specifies in which direction to advance the cursor after a measurement is stored If a...

Страница 31: ...ers of the same type frequency and diameter your gauge has a zero coating feature This enables your gauge to obtain very accurate readings on coatings eliminating potential errors incurred from slight...

Страница 32: ...or measurements in millimetres MODE P E Select to measure non coated material bare metals PECT Select to measure coated materials Measures the thickness of both the base material and coating E E Selec...

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