NDT
INTERNATIONAL, INC.
711
S.
Creek
Road
(610)
793-1700
West Chester, PA 19382
FAX
793-1702
www.ndtint.com
E-mail:
[email protected]
Operating Instruction Manual
Revision 2
NDT-710 Ultrasonic Thickness Gauge
Page 1: ...DTINTERNATIONAL INC 711 S Creek Road 610 793 1700 West Chester PA 19382 FAX 610 793 1702 www ndtint com E mail ndtint ndtint com Operating Instruction Manual Revision 2 NDT 710 Ultrasonic Thickness Gauge ...
Page 2: ...ess Gauging How Does It Work 2 What Materials Can Be Measured 3 Things To Consider 4 Dual Transducers 5 The NDT 710 Thickness Gauge Specifications 6 Operation 7 Calibration 7 Using A Special Application Transducer and Sensitivity Adjustment 8 Battery replacement 9 Maintenance 10 Optional Accessories 10 Velocity and Conversion Table 11 Thickness Reference Blocks 12 Warranty 13 ...
Page 3: ... save material time and labor costs HOW DOES IT WORK All ultrasonic measurements require two components an electronic device the gauge itself and an ultrasonic transducer In order to make a thickness measurement the gauge transmits a pulse of electrical energy to the transducer which then converts this energy into high frequency sound waves This ultrasound enters the test material at the point of ...
Page 4: ...sonic thickness gauges can be set up for metals plastics ceramics composites epoxies and glass Liquid levels and biological samples can also be measured Materials generally not suited for conventional ultrasonic gauging include wood paper concrete and foam products Online or inprocess measurement of extruded plastics or rolled metal is often possible as are layers or coatings in multi layer materi...
Page 5: ...lities primarily due to potential interference from a multiple of the interface echo Geometry A contract transducer is preferred for most ultrasonic measurements unless sharp curvature or small part size makes contact measurements impractical As the surface curvature of the test piece increases the coupling efficiency from the transducer to the test piece is reduced In general as the surface curva...
Page 6: ...d on a delay line The two transducer elements are slightly angled towards each other creating a V shaped sound path beneath the surface of the part Although measurement with dual transducers is not as accurate as with other types of measurements they provide better performance on rough or corroded surfaces as found in pipelines storage tanks pressure vessels structural support beams and most other...
Page 7: ... use Set to ON backlight will come on when gauge is turned on and remain on until gauge shuts off Set to OFF backlight will remain off Temperature Range 10 to 120F 10 to 50C Size 1 4 H x 3 1 W x 5 7 L Weight 11 ounces Features Automatic Zero adjust circuit for fast calibration Automatic shut Off 2 minutes last measurement or key pressed Retains the last reading in memory Battery life is approximat...
Page 8: ...alibration block or test piece 5 Observe the thickness reading at the point where the transducer is in contact with the calibration block or test piece 6 Use the INCH MM key to switch between inch 19 999 max and millimeter 199 99 max units Note Always clean and apply couplant to all surfaces to be measured Large deposits of couplant remaining on the transducer may cause an erratic display when the...
Page 9: ...n step is repeated Using A Special Application Transducer Sensitivity Adjustment When using other than the standard transducer provided with the NDT 710 gauge it may be necessary to make an adjustment to the sensitivity pot This adjustment may be necessary when using these special application transducers Part No 710 2HT High Temperature Transducer 710 3 Low Range Transducer 710 4 High Power Transd...
Page 10: ...r signifying that the backlight is on continuously 3 Press again and AU will appear in the display signifying that the backlight in automatic mode In this mode the backlight will come on when the transducer is coupled to material and will to shut off automatically after 10 seconds of non use This mode will extend battery life Battery Replacement 1 The Low Battery indicator is a small arrow which w...
Page 11: ...surement range of 0 150 to 6 000 Part No 710 2HT Low Range 0 25 element diameter 0 38 contact diameter x 7 5 MHz transducer provides a measurement range of 0 030 to 2 000 Part No 710 3 High Power 0 50 element diameter 0 62 contact diameter x 2 25 MHz transducer provides a measurement range of 0 200 to 10 000 Part No 710 4 Small Diameter 0 18 element diameter 0 25 contact area x 5 0 MHz transducer ...
Page 12: ...42 0 41 PLATINUM 156 3 96 1 47 PLEXIGLAS UVA 109 2 76 2 11 PLEXIGLAS UVA II 107 2 73 2 15 POLYETHYLENE 105 2 67 2 19 POLYSTYRENE 105 2 67 2 19 POLYURETHANE 070 1 90 3 28 PORCELAIN 220 5 60 1 04 RUBBER Butyl 073 1 85 3 15 RUBBER Vulcanized 090 2 30 2 55 SILVER 142 3 60 1 62 STEEL Mild 4340 233 5 85 1 00 Factory Standard STAINLESS STEEL 225 5 80 1 02 TIN 131 3 32 1 76 TITANIUM 239 6 07 0 96 TUNGSTEN...
Page 13: ...kness Calibration Block Typical Note The typical thickness reference block is supplied in Ni plated C1018 steel and is also available in 7075 Aluminum and 304 Stainless Steel A Metric version is also available in 2 5 mm steps in a thickness range of 2 5 mm to 12 5 mm ...
Page 14: ...ntative 5 Goods or parts that are defective in workmanship and or material will be repaired or replaced free of charge FOB authorized repair station provided that the goods or parts are returned transportation charges prepaid within the specified warranty period 6 Materials returned for warranty repairs must have prior authorization Obtain a Return Material Authorization RMA number from NDT Intern...
Page 15: ...NDT INTERNATIONAL INC NDT 710 Thickness Gauge 14 NOTES and COMMENTS ...
