NDT Systems Nova Eclipse TG930 User Manual

NDT Systems Nova Eclipse TG930 User Manual

Precision ultrasonic thickness gage

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Table Of Contents

1.0. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Principle of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 General Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Major Features: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. GETTING STARTED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1 Lay Out Shipment Contents . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Connect Probe and Cable . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 Reference Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. DISPLAY AND CONTROLS FAMILIARIZATION . . . . . . . . . . . . . . . . .
3.1 Display Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 Touch Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. OPERATION STEPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1 Power On - Battery Check - Auto-Off . . . . . . . . . . . . . . . . .
4.2 Probe Coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3 Basic Menu-Selections and Controls . . . . . . . . . . . . . . . . .
4.4 Calibration Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.5 THICKNESS MODE Sub-Menu: . . . . . . . . . . . . . . . . . . . . . .
4.6 ALARMS Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5. ADVANCED FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1 Scrolling B-Scan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2 Data Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3 MODIFY SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4 Ultrasonic Velocity . . . . . . . . . . . . . . . . . . . . . . . . . .
Longitudinal Ultrasonic Velocity Table . . . . . . . . . . . . .
6. GAGING TIPS AND TECHNIQUES . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1 Reference Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.3 Material Temperature Effects . . . . . . . . . . . . . . . . . . . . . . . .
6.4 Additional Test Material Factors . . . . . . . . . . . . . . . . . . . . .
7. GAGING PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1 Very Thin Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2 Pitting Corrosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Summary of Contents for NDT Systems Nova Eclipse TG930

  • Page 1: Table Of Contents

    Nova Eclipse TG930 - Users Manual Table Of Contents 1.0. INTRODUCTION ......... .
  • Page 2: Introduction

    7.5 Material Stacks ........NDT Systems thanks you for your purchase of the NOVA TG930 handheld 7.6 Plated or Painted Materials .
  • Page 3: General Applications

    Nova Eclipse TG930 - Users Manual Nova Eclipse TG930 - Users Manual probe. The transducer has a thin wafer of a piezoelectric material at its surface. Piezoelectric materials convert short pulses of electrical energy into tiny mechanical displacements, and, conversely, from mechanical displacements into electrical impulses.
  • Page 4: Major Features

    • Backlight – automatic, or on/off selectable. • Ultra-portability – a pocket-sized, handheld instrument incorporating NDT Systems’ “Easy Grip” custom extruded aluminum case. • State-of-the-art microprocessor-based design offers unparalleled, high accuracy performance for numerous thickness gaging applications. • Adjustable ScanBar feature produces a simple, analog-metered display of thickness for easy and rapid view of thickness trends.
  • Page 5: Getting Started

    Nova Eclipse TG930 - Users Manual Nova Eclipse TG930 - Users Manual 2.3 Reference Standards The NOVA TG930 incorporates the latest technology available in To calibrate the NOVA TG930, it is necessary to have one or more known microprocessor design. Through sophisticated on-chip programming, the thicknesses of the same material as that of the test object.
  • Page 6: Display And Controls Familiarization

    Nova Eclipse TG930 - Users Manual Nova Eclipse TG930 - Users Manual NDT Systems offers numerous ultrasonic couplants which cover virtually all Touch Commands. These displays will be shown and described in Section application areas for the NOVA TG930. These specially formulated 4, Operation Steps, and subsequent sections of the Manual.
  • Page 7: Display Features

    Probe In Use 4.1 Power On - Battery Check - Auto-Off Echo Mode (IP-1st, 1st-2nd, 2nd-3rd) Momentarily depress the ON/OFF Touch Command. NDT Systems’ Logo Battery Level Indicator and contact information are displayed. After the system boots, the Thickness Display Measurement Display automatically switches on.
  • Page 8: Basic Menu-Selections And Controls

    Nova Eclipse TG930 - Users Manual Nova Eclipse TG930 - Users Manual to surface). Thickness readings should not be considered reliable if the limits. It can start and end at any values within the NOVA TG930 Coupling Indicator intermittently blinks, or flickers.
  • Page 9 Nova Eclipse TG930 - Users Manual Nova Eclipse TG930 - Users Manual and will turn off automatically after approximately 5 seconds or until the next measurement is made. In Off, the backlight will stay off indefinitely. In On, Direct Contact transducers (e.g., the C11) can also be used. The Contact the backlight will remain on continuously whenever the gage is powered up.
  • Page 10: Calibration Procedures

    Nova Eclipse TG930 - Users Manual Nova Eclipse TG930 - Users Manual conditions, should be chosen. Pulse: toggles between Normal and Wide. procedure until the precise thicknesses are set. Following two-point Normal is the default condition. At Pulse:, continue pressing the Down calibration, press MENU to return to the Measurement Display.
  • Page 11: Alarms Sub-Menu

    Nova Eclipse TG930 - Users Manual Nova Eclipse TG930 - Users Manual Following a scan, to clear the displayed MinHold thickness, press the 5. ADVANCED FEATURES ENTER key. This sets a blank value next to Min. :, and readies the gage for 5.1 Scrolling B-Scan...
  • Page 12: Data Logging

    Nova Eclipse TG930 - Users Manual Nova Eclipse TG930 - Users Manual Minimum Thickness display. The B-Scan will run approximately 25 percent The number following Avail: is the number of faster. The graphic representation of thicknesses can be approximated from data points available for Logged data.
  • Page 13 Nova Eclipse TG930 - Users Manual Nova Eclipse TG930 - Users Manual above, is to upper-case characters. Lower-case characters can be selected The Log File Name is displayed at the top. At View Log, press ENTER. by pressing the Left ARROW to highlight the left-hand column having two The Grid or Linear Log File selected will open.
  • Page 14: Modify Setup

    NOTE: Many of the settings on this menu are also available in other menus as well. All settings are provided here for ease of total instrument setup. For instance, if you require the assistance of the custom application development team at NDT Systems they will have a means to inform the user of application specific setup information.
  • Page 15 TG930 originally, it may be added any time represent the basic required information later by returning the instrument to NDT Systems for installation of the the TG930 is processing in order to option. If the user is going to need frequent adjustment and storage of calculate an accurate thickness reading.
  • Page 16 Nova Eclipse TG930 - Users Manual Nova Eclipse TG930 - Users Manual Ultrasonically, the plastic is about ½ the ultrasonic speed or velocity as within the interface time zone, the gage will think it is reading the interface metal under test. Therefore, once the metal approaches 0.600" thick it will...
  • Page 17: Ultrasonic Velocity

    Nova Eclipse TG930 - Users Manual Nova Eclipse TG930 - Users Manual 5.4 Ultrasonic Velocity Longitudinal Ultrasonic Velocity Table Velocity Measurement: To accurately measure the Longitudinal Ultrasonic (At Room Temperature) Velocity characteristic of any particular material, it is necessary to have a sample of the material having known composition, and, if a metal, the heat treatment condition.
  • Page 18: Gaging Tips And Techniques

    Nova Eclipse TG930 - Users Manual Nova Eclipse TG930 - Users Manual 6. GAGING TIPS AND TECHNIQUES Excessive surface roughness can cause erratic, extremely low, or no 6.1 Reference Standards thickness readout. In such cases, consider scraping, sanding, grinding or...
  • Page 19: Material Temperature Effects

    If successful results cannot be obtained, it may be necessary to use an ultrasonic flaw detector such as the Quantum TE or a thickness gage with A-Trace capability such as NDT Systems' Eclipse TG-2. Non-Parallel Surfaces: The surfaces on both sides of a section must be relatively parallel or concentric in order to obtain a satisfactory ultrasonic echo for a thickness reading.
  • Page 20: Gaging Precautions

    Painted surfaces may, or may not, create gaging problems. It is essential to thickness. It is advisable to double check critical thinner sections by using experiment with reference samples having the same condition as the test NDT Systems' NOVAScope, the Eclipse TG-2, or an ultrasonic flaw detector material. such as Quantum TE.
  • Page 21: Accessories

    PC. For field inspections, it is unnecessary to have the PC at On Protective Leather Case for the gage. Contact NDT Systems for a hand, although there is the capability to read Logged data directly into a complete list of available options.
  • Page 22: Probes Available

    Nova Eclipse TG930 - Users Manual Nova Eclipse TG930 - Users Manual 9. PROBES AVAILABLE...
  • Page 23 Nova Eclipse TG930 - Users Manual Nova Eclipse TG930 - Users Manual Several of the probes in this section may work best if modified slightly to meet demanding application requirements. See Section 5.3...
  • Page 24: Maintenance

    Nova Eclipse TG930 - Users Manual Nova Eclipse TG930 - Users Manual 10. MAINTENANCE 11. SPECIFICATIONS Normal maintenance consists of little more than keeping the gage surfaces and probes clean. The probes and cables should be inspected periodically, and replaced, if excessively worn.
  • Page 25: Warranty

    Purchaser's exclusive remedy will be the return of the purchase price for the instrument. The liability of NDT Systems shall in no event be greater then the full amount of the purchase price for the instrument.

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