Videoscopio Everest Vit Pro - Plus

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BASIC PRINCIPLES OF REMOTE VISUAL INSPECTION (RVI) León & Russo Ingenieros S.A.C. Ensayos No Destructivos

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Transcript of Videoscopio Everest Vit Pro - Plus

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BASIC PRINCIPLES OF REMOTE VISUAL INSPECTION (RVI)

León & Russo Ingenieros S.A.C.

Ensayos No Destructivos

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REMOTE VISUAL INSPECTION

• Companies dedicated to high standards in their research, development, manufacturing, maintenance and quality control functions will be familiar with non-destructive testing (NDT).

• The NDT technique which is perhaps the simplest to use, easiest to interpret and most economical to adopt is Remote Visual Inspection (RVI).

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• RVI is the inspection of objects or areas usually inaccessible to the eye without disassembling surrounding structures or machinery. It allows inspectors to discover hidden defects before they cause major problems. RVI makes it possible to inspect otherwise difficult-to-reach areas, such as inside turbine and piston engines, pipes, airframes, tanks, vessels and other voids, including behind walls and into air conditioning ducts.

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• Videoscopes, fiberscopes, and borescopes penetrate remote places through small openings and send images directly back to the observer or to a video monitor. Videoscopes have a tiny TV camera mounted in the objective tip of a flexible probe, and utilize a fiberoptic light guide to illuminate the area being inspected. In flexible fiberscopes, the image is relayed through a fiberoptic image bundle, with illumination supplied by a fiberoptic light guide.

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• Rigid borescopes combine fiberoptics and optical lenses, with illumination being supplied through a fiberoptic light guide and the image being relayed through a miniature lens system.

• Videoscopes, fiberscopes and borescopes are available in a variety of diameters, lengths and optical specifications, to suit virtually every inspection task.

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What are Fiber Optics?

• Fiber optics (optical fibers) are long, thin strands of very pure glass about the diameter of a human hair. They are arranged in bundles called optical cables and used to transmit light signals over long distances.

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Parts of a single optical fiber

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• Core - Thin glass center of the fiber where the light travels

• Cladding - Outer optical material surrounding the core that reflects the light back into the core

• Buffer coating - Plastic coating that protects the fiber from damage and moisture

• Hundreds or thousands of these optical fibers are arranged in bundles in optical cables. The bundles are protected by the cable's outer covering, called a jacket.

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TOTAL INTERNAL REFLECTION

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• READ: To ensure operator safety, be sure to read and understand this Operator’s Manual before using the system.

• POSSIBLE EXPLOSION HAZARD: Do not use in explosive environments.

• ACCESSORIES: The accessories listed in the latest version of this manual are the only accessories that the manufacturer considers to be suitable for use with this product.

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• ELECTRICAL SHOCK HAZARD: The top cover of the Processor Light Source should never be removed. Electrical shock hazard exists due to high internal voltage. There are no user serviceable parts inside the Processor Light Source except for the lamp and fuse, which are accessible through the bottom and back panel, respectively.

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• VENTILATION: The Processor/Light Source (PLS) must have adequate ventilation to prevent overheating. Do not cover or drape the Processor Light Source. To ensure adequate airflow, be sure to provide a 3-inch (7.6 cm) distance between the Light Source chassis and any solid objects. Do not place on a soft surface that can result in the bottom ventilation holes being blocked. Operation with the PLS installed in the shipping case is the preferred operational configuration.

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• FUSES: Replace fuses as marked. See “Fuse Replacement” section.

• LAMP REPLACEMENT: Use caution when replacing the lamp, it may be hot. Only use Everest·VIT lamp part number: PXA101 for lamp replacement.

• DO NOT OPERATE PROCESSOR/LIGHT SOURCE (PLS) WITHOUT LAMP CONNECTED TO LAMP CONNECTOR, DAMAGE TO THE PLS MAY RESULT.

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• Warning: ULTRAVIOLET, INFRARED, AND INTENSE VISIBLE RADIATION EMITTED FROM THE LAMP SOURCE. SKIN OR EYE INJURY MAY RESULT. 1. Avoid exposure of eyes and skin to lamp and fiber bundle output while in operation. 2. Do not operate the light source without the power plug/fiber optic cable installed. 3. Turn off the light source or turn the brightness control to minimum when changing the optical tips at the end of the insertion tube.

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• WARNING: Always turn off Processor /Light Source before disconnecting VideoProbe power plug from the Processor/Light Source to reduce Risk of High Intensity Light Exposure To Eyes!

• WARNING: Use of any piece of this equipment in a manner not specified by the manufacturer may impair the product’s ability to protect the user from harm.

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• WARNING: The VideoProbe XL PRO and its working tools should never come in direct contact with any voltage or current source. Damage to the equipment and/or electrical shock to the operator may result!

• The XL PRO may be disconnected from the AC power mains supply by disconnecting the power cord from the mains power source.

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• The electronic joystick has a different “feel” than the conventional mechanical knobs and a few minutes practice will enhance your understanding of its advantages. Practice fine tip movements by moving the joystick small amounts and pausing to observe on the monitor the time required for the electronics to respond.

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• Maximize articulation capability by minimizing the coiling of unused insertion tube length. Bends in the insertion tube decrease the effectiveness of the push-pull steering cable mechanism.• Tip articulation can generally be increased by straightening the probe to its full length, holding the distal end of stiff insertion tube (just before articulation section), and shaking it vigorously to loosen clumped lubricant throughout the tube length. Do not stress the articulation section during this operation!

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• Be sure to notice the view orientation advantage of the monitor compared to an eyepiece. Regardless of how the probe has been rotated or turned, forward movement of the joystick always directs the view on the monitor up. Similarly, a backward movement always looks further down, left looks left and right looks right (Up/Down is reversed when using a side view tip). Understanding this consistent orientation of the joystick to monitor images makes manipulation of the tip much easier than it has been.

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• Get longer life from your Processor/Light Source lamp by avoiding frequent turning on and off.• If the probe ever becomes difficult to insert into its storage tube, clean out the tube and lubricate the probe with a light silicone oil. This problem can normally be prevented by cleaning the probe before storage each time it is used.• When using the detachable lens optics, always keep them clean and dry.

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• Clean the window in the tip section (camera head) frequently. Often a fuzzy image is due to dirt on the window.

• Articulating Section / Insertion Tube: Avoid pointed objects that can penetrate the tube’s outer sheath. Return probe for repair at the first sign of penetration.

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NOTE: Articulating Section: Pulling or twisting this section can separate it from the insertion tube. Return the probe for repair at the first sign of separation. Also, reduce the possibility of damage to the articulating tip by repositioning it to a neutral, forward position with the “Home” feature before withdrawing it from equipment or storing the probe in the case.

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The VideoProbe XL PRO comes assembled and ready to use. Just open the case, plug it in and turn it on. The system may be operated on AC or DC power, with the Processor/Light Source (PLS) stored or removed from the case. It may be operated as a stand alone system or in conjunction with a VCR, external monitor or other video peripheral equipment.

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SYSTEM SETUP

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1. POWERAC Power: If using AC power, connect the

AC power cord from the PLS to 110v or 220v AC outlet.

DC Power: If using DC power, remove the PLS from the case and disconnect the AC cord. Connect the DC cable from an XL PRO Battery set or a compatible DC power source to the DC jack on the rear panel of the PLS

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2. Verify that the VideoProbe’s power plug is securely latched into the PLS’s Probe Power Plug Receptacle, before removing the VideoProbe from the case.

Remove the VideoProbe from the case holding the hand-piece with one hand while positioning the insertion tube with the other.

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3. Turn on the power switch located on the PLS’s front panel. When system power is on, a green power indicator lamp located on the front panel will illuminate.

4. Adjust the Brightness Control knob fully counter-clockwise until it clicks into the “Auto” position.

5. An image should appear on the unit’s LCD.

LCD may require a 5 to 20 minute warm-up period in temperatures below 32˚F (0˚C).

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ATTACHING PERIPHERAL DEVICES

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• Video Output: All models of the XL PRO provide both Composite video and S-video output connectors on the front panel of the PLS. Connect to the peripheral device’s “Video In” input connector.

Video Cables are available as accessories.

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• Video Inputs: The PXLD, PXLA and PXLM models provide Composite video and S-video input connectors on the front panel of the PLS, which allow the VideoProbe XL PRO to capture, manipulate and store video from external sources. Use the appropriate composite or S-video cables (available as accessories) to connect to the PLS “Video Input” connector.

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• Audio Output: PXLD, PXLA, and PXLM models provide an RCA jack, which provides line level audio output. The system may be configured to provide continuous live audio from the hand-piece microphone, or just to output audio during stored image audio clip playback operation.

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• USB Cable: The PXLA and PXLM XL PRO Plus models contain a USB connection on the front panel of the PLS, which provides a continuous live video stream from the VideoProbe.

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DETACHABLE TIP OPTICS

(PROBE TIPS)

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The VideoProbe XL PRO contains a fixed focus optical system which is designed with a large depth of field and does not require operator focus.

Depth of field, field of view and direction of view can be varied by selecting the appropriate optical tip for the probe.

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Attachment & Removal of Tip Optics

6.1 and 8.4mm Probes (Forward-Viewing Tip Optics)

Assembly:•Align the green dot on the detachable lens optics with

the green dot on probe head. Gently push the detach- able tip optics onto the probe head. Rotate clockwise until the locking wire snaps in place.

Disassembly:•Push the locking wire toward the detachable lens

optics face. Rotate counterclockwise and remove the detachable lens optics from the probe head.

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CAUTION: DO NOT FORCE THE DETACHABLE

LENS OPTICS ON OR OFF.

TWISTING THE BENDING NECK MAY DAMAGE PROBE.

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The Internal Working Channel

The internal working channel is available in the 6.2 mm and 7.3 mm models. This channel has a 1.6 mm I.D. and allows use of micro tools together with forward-viewing optical tips to perform a number of measurement and retrieval tasks.

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HOW TO OPERATE THE XL PRO

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The VideoProbe XL PRO is equipped with the latest in video borescope technology. A fiber-optic bundle illuminates the inspection area with light generated by a new state-of-the-art 50 watt Welch Allyn So-larc® arc lamp in the Processor/Light Source (PLS). A miniature camera assembly in the VideoProbe’s Tip Section converts the optical image into an electronic image. This image is carried back through the probe and displayed on the color LCD, which is built into the probe hand-piece.

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WARNING: PROBE IS GROUNDED! Do not allow the Insertion Tube, Probe Tip

Section, or working channel tools to come into contact with a source of electrical current/voltage. Doing so may result in personal injury or permanent damage to the VideoProbe or inspected equipment.

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VIDEOPROBE XL PRO HAND-PIECE

CONTROLS

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Joystick – Tip Articulation

An electronic joystick points the viewing tip of the probe right where you need it. Looking at the monitor image, push the joystick forward to steer the view higher, backward to view lower, right to view to the right and left to view to the left. Regardless of how you have rotated the probe or the path the probe has taken through your inspection, the movement of the joystick always has the same effect on the image. You need only watch the monitor and steer the joystick in the direction you want to see.

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Coarse/Fine Option An option is available in the Setup Menu which

allows the articulation to be set for coarse or fine tracking response to joystick movements. (See “Setup Menu – Steering Control”).

All-Way® Articulation

Note: The VideoProbe XL PRO is designed with a high degree of tip articulation. However, as with all flexible borescopes, the degree of articulation will vary with the number of bends placed in the insertion tube. You can maximize the articulation by preventing unnecessary coils or bends in the insertion tube during operation.

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Joystick – Menu Navigation

The joystick is used to navigate through the various menus which are available in the more advanced models. Up/Down joystick movements navigate up and down the menu while Left/Right joystick movements access “drop-down” menu features which appear on-screen associated with primary menu options.

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Menu Access: Press MENU buttonMenu Navigation: Use joystick to move the

cursor to desired item • To select a field, move the joystick up or down

until it is highlighted (changes color). • To change the values or option in a field, move

the joystick left or right until the desired setting is highlighted.

Drop Down Menus: If there is a drop-down menu associated with an item in a menu, a ►

character will appear after the menu item. Example: LONG EXPOSURE ►

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• To Accept Menu Setting: Press the ENTER button (unless screen instructions indicate alternate methods).

• To Cancel or Exit Menu : Press the MENU button a second time to return to previous operational mode (unless screen instructions indicate alternate methods).

• • Or, press EXIT button to return to default live viewing mode.

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Joystick – Text Generator Usage: • The joystick may be used to create text for

text annotation overlay onto live or frozen images.

• The joystick may be used to name files or folders.

• The joystick may be used to set the time and date.

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STEER-and-STAY™ The STEER-and-STAY buttons activate a

lock function that holds the probe tip (camera) in a chosen position.

• When this mode is activated, both STEER/STAY buttons will illuminate.

• Moving the joystick while the Steer/Stay mode is active allows for slower articulation, making fine articulation easier.

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• The tip will hold the last position directed by the joystick until either the joystick is moved again or the Steer/Stay mode is turned off.

• This mode can be turned off by pressing the STEER/ STAY button again, or by pressing the “HOME” button.

• Note: The STEER/STAY mode will turn off after 15 consecutive minutes without joystick movement.

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IMPORTANT!• • Never turn system power off with tip

articulated. Assure the tip is straight. Not doing so may result in damage to the articulation mechanism when the insertion tube is removed from the object being inspected.

• • Be sure the STEER/STAY mode is turned off prior to removing the probe from your equipment.

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HOME – Return to Center

This automatic tip centering feature is helpful when you want to reorient the probe tip to its neutral straight position, or you want to center the tip for withdrawal from equipment.

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Image Brightness

Access • “▲LCD▼”. Button The brightness of the image shown on

the LCD can be adjusted up or down with the control button marked “▲LCD▼”. This adjustment will be maintained until the system power is turned off. When turned back on, the image brightness will reset to the default brightness setting.

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Freeze Frame – Button & Menu

Freezes live image currently displayed on screen

Press the ENTER button while any live image is displayed on the LCD.

To Exit FF: Press ENTER again or EXIT button to return the system to live mode.

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Zoom Magnifies live images up to 3X • Since the system’s electronics enlarge the

image, pixelation will increase as the zoom is increased.

• Press ZOOM button while in a live video mode

Note: Zoom cannot be performed while viewing video from an external source

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Operation: There are two ways to change the zoom level. The zoom will cycle through four levels (1.5x, 2.0x, 2.5x, 3.0x) with each press of the ZOOM button. If the ZOOM button is held down, a continuous zoom up to 3.0x takes place.

• When the system is in zoom mode, the level of zoom will be displayed in the top right corner.

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Storing: Zoomed images may be stored.Freezing: Images can be frozen while

zoomed.Measuring : If you press the MEASURE

button while in live zoomed image mode, the image will freeze and a message appears on-screen asking if you want to select a shadow- based measurement, stereo-based measurement or a known reference- based measurement.

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• If you select a shadow or stereo- based measurement, the image which appears for measurement will be non-zoomed view.

Exit: Press ZOOM button repeatedly until standard view screen returns, or press the EXIT button.

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Image Storage• The system stores images in folders in

either flash memory, or floppy disk. A default folder name of “Main” is initially created by the XL PRO. New folders may be created using the file manager menu.

• Each image is placed in a folder with an image file name based on date, i.e., YYMMDDXX.BMP or .JPG, where YY is year, MM is month, DD is day, and .bmp and .jpg are file formats.

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• File names for shadow and stereo images saved with measurement data will start with the letter “M” for measurement in place of the first year, i.e.,MYMMDDXX.BMP.

• The saved image contains information displayed on the screen at the time the image was saved (i.e., time, date, zoom level, measurement result, measurement cursors, accuracy index, measurement tip used and shadow position).

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• Images may be saved with or without measurement data, using MENU, SAVE or without measurement data using Quick Save by holding down the FREEZE ENTER button.

• The number of images that can be stored in internal memory or on a floppy disk or SmartMedia card depends on the image content and the video format option selected from the SETUP MENU.

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IMAGE SAVE

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Saves images displayed on hand-piece LCD for future reference.

• Only frozen images may be saved. • From live viewing, press FREEZE button.

The image will freeze and FF will appear in the upper right corner of the screen.

• Recalled images may be re-saved since they are already frozen.

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• Split screen images may be saved as long as both half screens contain frozen images.

• From a frozen image screen, press MENU. Operation The menu associated with that frozen screen will appear.

• Use the joystick to move the arrow pointer to select the memory location where you would like to store the image.

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Saving • You have a choice of saving the image in one of two active folders: an internal C:\ memory folder, or a floppy FlashPathA:\ folder or CompactFlash A:\ folder.

• If the image was captured using a stereo or shadow tip, the MEASURE option will allow the image to be saved with calibration data so that measurements can later be performed using the saved image.

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• The name of the currently active folders is shown on the menu screen next to C:\ and A:\.

• You may choose to save to a folder in A: or C: which is not currently active by moving the arrow pointer to CHOOSE C:\ FOLDER or CHOOSE A:\ FOLDER and pressing ENTER..

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Rename Lets you change the filename.

• Use the joystick and press ENTER to select Rename.

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MAIN MENU OPERATION

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Provides access to the following sub-menus and image functions:

• SPLIT SCREEN• LONG EXPOSURE • LIVE ANNOTATION • VIEW • VIDEO RECORD• FILE MANAGER • SETUP MENU

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SPLIT SCREEN OPERATION Allows a frozen or recalled image to be

viewed alongside a live or frozen image in any combination of live, frozen, and recalled images (except live/live). • Press MENU button while in the live,

freeze frame, or recalled image modes. • Use cursor to select SPLIT SCREEN • Press ENTER button

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• Initially, a frozen image of the previously shown full-screen image is shown on the right half screen, and a half screen view of the previously shown full screen image (a live, freeze frame, or recalled image) is shown on the left half screen (Live/FF Split).

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Split screen

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LONG EXPOSURE USAGE

The LONG EXPOSURE mode extends image exposures up to 8 seconds to make the image brighter in areas of low light levels.

• Press MENU while in the live mode. • Highlight LONG EXPOSURE by using the joystick to move the cursor up or down.

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• A secondary LONG EXPOSURE menu will appear containing options to select:

AUTO MANUAL • Use the joystick to highlight the desired long

exposure option.• Press ENTER.

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Long Exposure

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FILE MANAGER

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The File Manager menu is used for recalling, copying, or deleting images and video from, or between, the internal flash memory (the C:\ drive), the floppy disk (the A:\ drive) or CompactFlash (the A:\ drive on XL PRO Plus models) drive.

• If an image has an associated .wav file, it will also be operated on in the same manner as the image file which is selected.

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• File folder creation, renaming and deletion are accessed through this menu.

• A floppy disk or CompactFlash erase function is available through this menu.

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• Press the MENU button • Highlight FILE MGR with the cursor • Press ENTER Operation• A menu titled FILE

MANAGER (as shown above) will be displayed

• See individual feature descriptions for use of each menu function

Exit • Press MENU button again, or press EXIT button.

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FILE MANAGER Menu FOLDER OperationsThe XL PRO supports the creation and

modification of file folders in the internal C:\ memory and the A:\ disk drive. Initially the XL PRO creates a folder named MAIN in the C:\ and A:\ memory locations. The user maycreate additional folders on either the C:\ or A:\ memory locations.

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File Manager

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Menu Feature CREATE FOLDER

• Highlight FOLDER in the FILE MANAGER menu.

• Move the arrow pointer to either C:\or A:\. A drop-down menu withCREATE/RENAME/CHOOSE/ DELETE will appear.

• Move the arrow pointer to CREATE.

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• Press ENTER. Thumbnail images of the current folders on the chosen drive appears on-screen along with a new un-named folder.

• The new folder has a blinking letter “A” in the folder name. You may modify the folder name by using the joystick or an external keyboard.

NOTE: Spaces are not allowed in folder names.

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• Press the ENTER key on the hand-piece to save the folder name. A new screen appears which asks if you would like to choose this new folder as the selected folder the next time you save an image to that drive.

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- Press ENTER to select the new folder as the chosen folder for the next SAVE operation.

- Press EXIT to keep the previously chosen folder as the destination for the next SAVE operation.

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Set up Menu

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Setup MenuThe Setup menu is used to change various

basic system settings. • The settings you choose are stored and

recalled at power-up. Press the MENU button. • Use the joystick to select SETUP MENU

from the on screen display. • Press ENTER. A list of user modifiable

fields will appear.

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Move the joystick such that the small arrow pointer is located next to the setting you would like to modify or the process you wish to activate.

• Press ENTER to choose a new setting. To Accept • Press MENU, or see Specific

on-screen Setup menu topic instructionsTo Cancel • Press EXITExit • Press EXIT

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MEASUREMENT OPERATIONS

The XL PRO VideoProbe supports three different types of measurement operations:

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ShadowProbe ShadowProbe measurements involve

Measurements the use of Shadow Probe tips which project a shadow onto a target.

Using triangulation geometry based on the shadow location, measurements may be made on the target.

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StereoProbe StereoProbe measurements involve

Measurements the use of Stereo Probe tips which capture stereoscopic images of a target. The XL PRO processor uses a triangulation geometry methodology to perform measurements on the target.

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Comparison Comparison measurements rely on the

Measurements dimensions of a known object in the field of view or introduced into the field of view to calculate other dimen- sions.

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Measurement AccuracyCAUTION NOTE:The accuracy of measurements performed

by XL PRO Systems cannot be guaranteed by Everest VIT. The accuracy of any measurement is dependant on the ability of an operator to capture a quality image and the skill of the operator to accurately place measurement cursors.

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In the case of stereo measurements, the ability to verify that the XL PRO’s automatic matching of the cursors placed by the operator is accurate is also critical to achieving accurate measurement results.

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ShadowProbe Measurement System There are seven types of shadow-based

measurements that may be performed by the XL PRO PXLM series.

1.Distance 2.Skew 3.Depth 4.Point-to-Line

5.Area 6.Multi-Segment Length 7.Circle Gauge

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A shadow measurement is made with a frozen image or a recalled image taken from the shadow measurement screen, or an image saved as a measurement image.

For maximum accuracy, move the shadow as close to the left side of the screen as possible (the shadow moves left as the probe approaches the surface), and place the shadow line and cursors as accurately as possible. Measurement can be made even if the tip is so close to a surface that the image is somewhat out of focus. In this case, features must be sharp enough so the cursors can be placed accurately.

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Important: ShadowProbe measurements tips, unlike

standard optical tips, are factory calibrated for use with specific probes and will not measure accurately if used with other measurement probes. Tips are matched to probes by serial number engraved in the side of the tip and listed on the probe plug label, and calibration data is stored in memory in the probe.

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Shadow Tip Identification

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ShadowProbe measurement is a linear measurement of points on a flat surface which is perpendicular to the optical axis of the probe. The shadow will indicate this viewing condition by appearing as an unbroken vertical line that remains vertical even when the probe is rotated.

ShadowProbe Measurement In this viewing condition, measurements can be taken

anywhere in the frozen image. In general, measuring on or near the shadow line reduces the risk of error caused by a non-perpendicular

viewing angle.

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• To initiate a Shadow measurement, press MEASURE or MENU buttons and follow the steps outlined in the sections below.

Zoom • During cursor placement operations in Windows stereo measurements, the user may press the ZOOM button in order to see a 3x magnification of the user positioned cursor.

Saving • After a measurement is completed,Measurement pressing MENU brings up theImages Measurement Screen menu, which allows you to save the image including measurements.

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• After completing a measurement, you Additional can reposition the cursors to adjust Measurements the measurement, or keep the first measurement and make a new one. Up to five measurements can be made on one image.

Exit • Press EXIT to return to the frozen Measurement ModeMode

• Press EXIT again to return to the live video.

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SHADOWPROBE DISTANCE

MEASUREMENTS

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A simple, accurate method to measure linear dimensions in an image.

• Position the tip so the shadow line lies on the same surface as the feature to be measured.

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To maximize accuracy, move in as close as possible. This moves the shadow line toward the left side of the screen. (If you cannot obtain a vertical shadow, you should select a SKEW measurement.)

• Press FREEZE to freeze the image.

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• Press MEASURE to activate the measurement feature. A screen will appear which asks you to choose which type of measurement you wish to perform, comparison, stereo or shadow.

• Use the joystick to select SHADOWDISTANCE along with the tip which will be used to perform the distance measurement.

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• Press ENTER to accept the measurement type and tip to be used for the measurement.

• If this is the first time a measurement function has been selected after power-up, a warning screen appears. This screen advises you to verify that the tip selected from the menu is the tip which is installed on the probe.

• Press ENTER

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• A vertical dashed line cursor will appear on the screen. Move the dashed line with the joystick to the center of the vertical shadow.

• Press ENTER.

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One cursor appear. Use joystick to place cursor. If the probe was perpendicular to the object in both the horizontal and vertical planes, measurements may be taken at any point in the image.

• Press ENTER. • Second cursor appears. Use joystick to

move to desired location. Press ENTER. Measurement results will appear.

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SHADOWPROBE SKEW

MEASUREMENTS

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A Skew measurement is a linear measurement of an object on a surface that is at a skewed angle (nonperpendicular) to the optical axis of the probe (Figure 38). Usually the shadow will appear sloped (nonvertical), indicating that the surface distance from the probe (and therefore magnification) is not constant throughout the image.

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From a skewed viewing angle, measurements can only be made along the shadow, so the shadow must be aligned to the object to be measured before the image is frozen.

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• A sloped shadow means the viewing tip is

not perpendicular to the surface, therefore height above the surface and magnification will change across the image.

• Tip-to-target reference distance is only known on the shadow, so place it on the object before freezing the image.

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• Maximize accuracy by using the greatest magnification (filling as much of the screen as possible with the image), getting as close to perpendicular as possible, marking the limits measured precisely with the cursors, and accurately centering the cursors on the shadow line.

• Press FREEZE to freeze the image. • Press MEASURE and use the joystick to

select SHADOW, SKEW.

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• Select the appropriate tip and press ENTER.

Two cursors will appear. • Move the cursors with the joystick to mark

the features to be measured along the shadow.

• The cursors must be accurately centered on the shadow.

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• The distance between the cursors and the Accuracy Index (if activated) will be constantly displayed.

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SHADOW PROBE DEPTH

MEASUREMENT

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A Depth measurement measures the height or depth of an object by determining the distances from the probe to the upper and lower surfaces and calculating the difference. The viewing angle should be perpendicular to the surface plane or the resulting measurement will be a diagonal depth rather than a true vertical depth.

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When the surface planes are perpendicular, the shadow will appear vertical in the image and remain vertical even when the probe is rotated. The shadow will break to the left to indicate a raised surface or to the right to indicate a recessed surface.

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Depth measurements can only be made along the shadow, so align the shadow vertically across the change in contour before freezing the image. When marking the depth or height to be measured, place the point cursors along the center of the shadow on the lower and upper surfaces near the break.

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Initial Setup Prepare for measurement by selecting

and installing the most appropriate measurement tip for the inspection from the list of tips calibrated for the probe.

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• A Depth measurement evaluates the difference in height between two points to indicate vertical changes due to wear, misalignment and other causes.

• The shadow’s shape indicates surface contours, because it bends over surface irregularities, e.g., it breaks sharply right when a surface falls rapidly away from the tip, and bends gradually to the right for gentle slopes away from the tip.

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Make Depth measurements by locating the object with the shadow lying on the area to be measured. If the shadow is not visible, move the probe closer until it appears. Keep the probe perpendicular (a vertical shadow) to the main surface.

• Press FREEZE to freeze the image. • Press MEASURE, select DEPTH and

the appropriate tip then press ENTER.

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• Two cursors will appear. • Using the joystick to center one of

thecursors on the shadow where it falls on the first surface to be measured. Press ENTER.

• Use the joystick to center the second cursor on the shadow where it falls on the second surface to be measured. Press ENTER.

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• The vertical distance between the cursors and the Accuracy Index (if activated) will be constantly displayed.

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SHADOWPROBE POINT-TO-LINE MEASUREMENTS

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Provides measurement data in two dimensions, along an X-axis and Y-axis.

• Position the tip so the shadow line lies on the same surface as the feature to be measured. To maximize accuracy, move in as close as possible. This moves the shadow toward the left side of the screen.

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• Press FREEZE to freeze an image. • Press MEASURE, select SHADOW, PT-

LINE and the appropriate tip. Press ENTER.

• The first of three cursors will appear. The first two cursors establish the reference line. The third cursor sets a point perpendicular to the reference line for the distance measurement.

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• Position the first cursor as the starting point of the line. Press ENTER.

• Position the second cursor as the end point of the line. Press ENTER.

• Position the third cursor as the perpendicular point. Press ENTER.

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• The perpendicular distance will bedisplayed with a flashing background. Use the joystick to reposition the number and press ENTER. The length of the reference line is also displayed on the side of the image.

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Point to line measurement

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SHADOWPROBE AREA

MEASUREMENTS

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Used to measure the size or area of a defect.

Provides measurement data on a flat, perpendicular surface.

• Position the tip so the shadow line lies on the same surface as the feature to be measured. To maximize accuracy, move in as close as possible. This moves the shadow toward the left side of the screen.

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• Press FREEZE to freeze the image. • Press MEASURE, select SHADOW,

AREA and the appropriate tip and press ENTER.

• A vertical dashed line cursor will appear on the screen. Move the dashed line with the joystick to the center of the vertical shadow and press ENTER.

.

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• The first of up to 24 cursors will appear. Position the cursor as the first point on the feature to be measured and press ENTER

• Continue to place cursors around the edge of the feature being measured. A minimum of three cursors must be placed to outline the area.

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• Press ENTER without moving a cursor to close the area being measured. The system will display the Area with a flashing background.

• Use the joystick to reposition the Area measurement if desired and press ENTER.

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Area Measurement

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SHADOWPROBE MULTI-SEGMENT LENGTH

MEASUREMENTS

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Used to measure the length of a non-linear defect or feature by combining the lengths of shorter segments.

• Position the tip so the shadow line lies on the same surface as the feature to be measured. To maximize accuracy, move in as close as possible. This moves the shadow toward the left side of the screen.

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• Press FREEZE to freeze an image. • Press MEASURE, select SHADOW,

MULTI-LENGTH, and the appropriate tip and press ENTER.

• A vertical dashed line cursor will appear on the screen. Move the dashed line with the joystick to the center of the vertical shadow and press ENTER.

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• The first of up to 24 cursors will appear. Position the cursor as the first point on the feature to be measured and press ENTER.

• Continue to place cursors along the feature. A minimum of two cursors must be placed.

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• Press ENTER without moving the cursor to end the measurement.

The total distance of all segments will be displayed with a flashing background.

• Use the joystick to reposition the distance if desired and press ENTER.

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SHADOWPROBE CIRCLE GAUGE MEASUREMENT

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A circle gauge is useful as a quick GO/NO-GO measurement tool.

Note: In order to provide accurate measurements, it is important that the image being used during circle gauge measurements was frozen while the probe tip was perpendicular to the target image.

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• Position the tip so the shadow line lies on the same surface as the feature to be measured. To maximize accuracy, move in as close as possible. This moves the shadow toward the left side of the screen.

• Press FREEZE to freeze an image. • Press MEASURE, select SHADOW,

CIRCLE GAUGE, and the appropriate tip and press ENTER.

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• A vertical dashed line cursor will appear on the screen. Move the dashed line with the joystick to the center of the vertical shadow and press ENTER.

• Follow insturctions on screen, use the joystick to set the Circle Gauge size.

• Press ENTER.

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• Use the joystick to reposition the circle on the object being compared and press ENTER.

• The circle which now appears has the inside dimension equal to the value you have selected.

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• A Gauge Size with flashing background is displayed. Use the joystick to move the value if desired and press ENTER.

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MAINTENANCE AND CLEANING

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• Clean the VideoProbe after each use. • Wipe down the insertion tube with a 70%

alcohol-to-water solution after each use. • Clean the probe’s detachable optics

(lenses) with cotton swabs and glass cleaner or 70% alcohol to water solution before and after each use.

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• Clean the window on the tip section periodically to avoid fuzzy images. If the probe is used in a dirty environment, then increase the interval as needed.

• Use a common spray window cleaner for the lens, LCD and other parts, if needed.

• Never immerse or soak the hand-piece or the probe power plug.

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Chemical Compatibility Chemical compatibility refers to the probe’s

ability to come into contact with various liquid substances and not be damaged. There are far too many different liquids in the industrial environment for Everest VIT to test each one, so customers must determine for themselves if the probe is compatible with their specific chemicals.

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However, Everest VIT has tested the VideoProbe XL PRO to several of the more common substances and reports the results in the hope that it might be of assistance. Whatever the liquid, duration of exposure should be minimized and the probe cleaned after each use before storage. See manual for cleaning instructions. (Note: that the VideoProbe XL PRO is not certified for operation in explosive environments.)

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SUBSTANCE AFFECT ON PROBEWater Not affectedAircraft Gasoline Not affectedJet-A-Fuel Not affectedIsopropyl alcohol Not affectedJP-4 Fuel Not affectedKerosene Not affectedSynthetic Turbo Oil Not affectedGasoline Not affectedDiesel Fuel Not affected

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As a general rule of thumb, if the liquid is relatively clear and safe for your hand, then it is probably safe for the probe. Conversely, if it is not safe for your hand, it is probably not safe for the probe.

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AGRADECE A SU EMPRESA POR PREFERIRNOS PARA SER SUS PROVEEDORES DE LOS MEJORES

EQUIPOS EN NDT.

León & Russo Ingenieros S.A.C.

Ensayos No Destructivos