enModel CG100ABDL, CG100BDL& CG100B

Corrosion Gauge

Operating Instructions

0enThis product meets the Electromagnetic Compatibility Directive.
The product is Class A, Group 1 ISM equipment according to CISPR 11
Group 1 ISM product: A product in which there is intentionally generated and/or used conductively
coupled radio-frequency energy which is necessary for the internal functioning of the equipment
itself.
Class A product are suitable for use in all establishments other than domestic and those directly
connected to a low voltage power supply 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 trademark of Elcometer Limited, Edge Lane, Manchester,M43 6BU. United Kingdom:

Material Safety Data Sheets for the ultrasonic couplant supplied with the instrument and available
as an accessory, are available to download via our website:
Elcometer Ultrasonic Couplant Material Safety Data Sheet :www.elcometer.com/images/MSDS/elcometer_ultrasonic_couplant.pdf
www.elcometer.com/images/MSDS/elcometer_ultrasonic_couplant_blue.pdf
Elcometer Ultrasonic Couplant (High Temperature) Material Safety Data Sheet :www.elcometer.com/images/MSDS/elcometer_ultrasonic_couplant_hi_temp.pdf
All other trademarks acknowledged. © Elcometer Limited 2011/2014. All rights reserved. No part ofthis document may be reproduced, transmitted, transcribed, stored (in a retrieval system orotherwise) or translated into any language, in any form or by any means (electronic, mechanical,
magnetic, optical, manual or otherwise) without the prior written permission of Elcometer Limited.

TMA-0559 Issue 04
Text with cover: 23807

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Contents
1

About your Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2

The Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3

Getting Started. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4The Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

5The Measurement Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

6

Measurement - Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

7

Setting up the Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

8

Measurement - Taking Readings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

9Gates (CG100ABDL gauges only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

10 ThruPaint™ measurement technique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
11 Measurement - Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
12 Flaw Mode (CG100ABDL gauges only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
13 Measurement - Recording your Readings (CG100DL gauges only). . . . . . . . . . . . . . . 22
14 Gauge Setups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
15 Data Transfer Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
16 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
17 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
18 Technical Specification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
19 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
20 Spares & Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
21 Condition and preparation of surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
22 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
23 Sound Velocities of Common Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
24 The Menu Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
25 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362

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Thank you for purchasing this Elcometer NDT product. Welcome to Elcometer NDT.
The CG100 series of Corrosion Gauges are world beating products. With the purchase of thesegauges you now have access to the worldwide service and support network of Elcometer. For more
information visit our website at www.elcometerNDT.com.

1 ABOUT YOUR GAUGEThe CG100 series are corrosion gauges that measure with extreme versatility. They have the ability
to measure coatings and material thickness simultaneously while maintaining the ability to locate
pits, flaws and defects in the material. Based on the same operating principles as SONAR, theCG100 Series have the capability of measuring the thickness of various materials with accuracy ashigh as +/- 1% or +/- 0.1 millimetres (+/- 0.005 inches) whichever is the greater. The principal
advantage of ultrasonic measurement over traditional methods is that ultrasonic measurements canbe performed with access to only one side of the material being measured.
The CG100 series also include a data-logging (memory) facility which allows readings to be stored
in batches before being downloaded to a computer.
1.1 STANDARDSYour gauge can be used in accordance with the following Standards and test methods;
ASTM E 797, EN 14127 and EN 15317.
1.2 GAUGE OVERVIEW & WHAT THIS BOX CONTAINS
13

1. Transducer connection
2. Alarm LEDs

5

3. Battery compartment cover and zero block4. Display
4

5. Keypad
6. RS232 Output Socket

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Model CG100ABDL+ or CG100BDL or CG100B, Bottle of couplant, Battery (3 x), Carrying case, Test
Certificate, Operating instructions, CD with software to enable you to transfer your readings andsettings to and from a PC, RS232 cable and USB to serial converter.

Note: The box does not include a transducer; these must be ordered separately.
1.3 FEATURES OF THE GAUGE• Wide range of measurement modes:• Automatic: probe zero, probe recognition, and temperature compensation.
• Adjustable gain settings.
• Stores up to 64 custom setups for specific applications.
• High speed scan mode of up to 50 readings per second.
• Audible/visual alarm with high and low limit settings.
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•
•
•
•

Differential mode for QC inspections.
RF and RECT A-Scan displays (CG100ABDL gauges only).
Time based B-Scan display.
Measurement data storage formats: Alpha numeric grid and sequential.
Data can be downloaded to a computer for analysis and storage.
To maximise the benefits of your new Elcometer NDT gauge, please take some time to readthese Operating Instructions. Do not hesitate to contact Elcometer NDT or your Elcometer
NDT supplier if you have any questions.
1.4 PACKAGING
The gauge is packed inside its carrying case within a cardboard box. Please ensure that the
packaging is disposed of in an environmentally sensitive manner. Consult your Local Environmental
Authority for further guidance.

2 THE KEYPAD
0(18Activates the primary menu structure containing menu tab groups. These tabgroups then contain sub menu items, or functions.

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Clears a measurement from a log file cell location or set obstruct and backspace in an Alpha Edit Box.
Press to start taking measurements. Scroll forwards through the hot menu.

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2.

Press to confirm a change or selection. When in measurement mode, enables
or disables the Hot Menu. If your gauge is displaying a grid log, this key toggles
an advance to row number option.

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In the MENU, MEAS, and EDIT functions this key acts as a back or escapefunction. If your gauge is displaying a grid or sequential log, the ESC key toggles the display options; RF, RECT, B-SCAN or DIGITS.
Navigation keys.

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In menus this key activates list and edit boxes, displays and saves measurements to grid or sequential files locations.
Press to select a measurement mode. The measurement modes available
depend on which transducer is being used. See Section 6 “Measurement Modes” on page 10.
Switches the gauge ON or OFF.

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3 GETTING STARTED
3.1 FITTING BATTERIESYour gauge may be used with dry cell or rechargeable batteries. 3 x LR6 (AA) alkaline batteries aresupplied with this gauge.
When the battery voltage is low the entire display will start to flash. When this occurs the batteries
should be replaced.
To fit or replace batteries:
1. Unscrew battery compartment cover.
2. Referring to battery polarity instructions on rear of gauge, insert batteries.
3. Replace battery compartment cover.
Note: Remove the batteries 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 FITTING THE TRANSDUCER
The transducer transmits and receives ultrasonic soundwaves that the gauge uses to calculate the thickness of thematerial being measured.
The transducer connects to the gauge via the attachedcable, and two coaxial connectors. When using transducers
manufactured by Elcometer, the orientation of the dual
coaxial connectors is not critical; either plug may be fitted toeither socket.
Further information on fitting the transducer can be found on the Elcometer NDT Knowledge Centre
on www.elcometerNDT.com.
3.3 SWITCHING ON/OFF
To switch on or off, press the on/off key.
The gauge will switch off automatically after 5 minutes of inactivity.

4 THE MENUSYour gauge has two menu systems:• Full menu - displays all the functions and settings of the gauge (see also page 32).
• Hot menu - displays a sub-set of functions and settings related to taking measurements.
4.1 FULL MENU
Press MENU once toaccess the menus...

UP and DOWN scroll LEFT and RIGHT
then press MENU toscroll to the right along to the desired function. adjust the selectedfunction.
the sub menu bar and
ESC to scroll left to thesub menu you want.

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4.2 HOT KEY MENU (CG100ABDL gauges only)
Press MEAS once toaccess themeasurement screen.
The hot menufunctions are
displayed at thebottom of the reading
screen.

Press MEAS to scroll
right along the hotmenu functions and
ESC to scroll left.

Use UP, DOWN, LEFT
and RIGHT to adjust
the value of thefunction.

Alternatively, adjust
values by pressing
ENTER then use UP,
DOWN, LEFT and
RIGHT to scroll andadjust values. Press
OK when finished.

4.3 OVERVIEW
Throughout these instructions menu locations will be described using a simple system to guide theuser. Locations or menu items will be described in the order that they must be navigated toseparated by a "/".
For example, to reach the option "B-Scan Scroll Speed" MENU/DISP/B-SCAN SPEED would be
written. After adjusting the desired function press MEAS to return to the measurement screen.
4.4 SELECTING MENU LANGUAGE
The menus can be displayed in English, Spanish, German and French.
1.Select MENU/SET/LANGUAGE and adjust with the LEFT and RIGHT arrows.

5 THE MEASUREMENT SCREEN
Your gauge has up to four types of measurement screen:• A-Scan Waveform, RF(CG100ABDL gauges only)• A-Scan Waveform, RECT (CG100ABDL gauges only)• B-Scan• Digits
A-SCANRF

A-SCANRECT

B-SCAN

DIGITS

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To see the measurement screen, press MEAS.
To select which measurement screen to use, press MENU/DISP/VIEW and then select RF, RECT,
B-SCAN or DIGITS.
5.1 ITEMS COMMON TO ALL MEASUREMENT SCREENS
A number of items are common to all the measurement screens:
A

C

B
E

D

F

G
H

A

Battery Icon

Remaining battery life.

B

Repeatability/Stability
Indicator

This indicator is used in conjunction with the digital thickness
values displayed. When all the vertical bars are fully illuminatedand the last digit on the digital thickness value is stable, yourgauge is reliably measuring the value.

C

Material Thickness
Value/
Material Velocity Value

The thickness or sound velocity of the material under thetransducer (type depends upon measurement view).

D

Units

The current measurement units (Metric/English).

E

Feature Status Bar

Indicates the features currently enabled and in use:
• Measurement Mode (P-E, PECT, PETP, E-E, E-EV, CT)• Differential Mode (ON/OFF)• High Speed Scan Mode (ON/OFF)• Alarm Mode (ON/OFF/AUDIBLE)• Gain Setting (VLOW, LOW, MED, HI, VHI) CG100B &CG100BDL• Gain Value - CG100ABDL only
See “Measurement - Modes” on page 10 etc for further
information.

F

Measurement View Area RF, RECT, B-SCAN or DIGITS view area.

G

Measurement Labels
Bar

H

Hot Menu (ABDL gauges The hot menu contains a selection of the most commonly used
only)
options, allowing you to conveniently adjust these to your needs
while the graphical display is active.

Displays the viewable range and are based on the values of
DELAY/B-START and RANGE/B-DEPTH.

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5.2 RF A-SCAN MEASUREMENT SCREEN(CG100ABDL gauges only)
The RF view shows the full sound wave as
received by the gauge. The vertical axis
indicates the amplitude of the received wave
and the horizontal position indicates the time it isreceived, which is converted into thickness units
using the material velocity.
The point on the scan that is being used to
calculate the digital thickness reading isdisplayed as the vertical dashed line (seesection 9 on gates). The RF screen is used forgauge setup prior to inspection.

Hot Menu Enabled

Hot Menu Disabled

Hot Menu Enabled(CG100ABDL only)

Hot Menu Disabled

5.3 RECT A-SCAN MEASUREMENT SCREEN(CG100ABDL gauges only)
The rectified view shows only half of the
waveform, either the positive or negative half
depending on the POLARITY selected.
The RECT display is the preferred view for flaw
and pit inspections.
5.4 B-SCAN MEASUREMENT SCREEN
The time-based B-Scan display provides a crosssectional view of the material being tested. In
this example, the top, or accessible side of thematerial is represented as 0.00mm, and thebottom, or blind surface at 25.4mm.
This mode is used when you need to inspect the
profile of the blind surface. It can also be a usefulview when scanning for pits and flaws.
The B-Scan display is equipped with a scan bar
representing the overall thickness. The scan bar
gives the user a visual indication when a flaw ordefect passed over during the scan process.
If you are scanning a pipe, for instance, andpass over a pit during the process, the scan bar
will quickly deflect and alert you to go back andsearch for the defect.
5.5 DIGITS MEASUREMENT SCREEN
The digits display shows the thickness as avalue using a large font size. This view is usedtypically when the gauge is being used as abasic thickness gauge. The digits display
includes the same scan bar as the B-Scandisplay.

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5.6 CHANGING THE VIEWABLE RANGEIn RF view, RECT view and B-SCAN view, if the waveform around the detection point is not visibleon the display, use one of the following methods to adjust the viewable range of the display:• When in RF view or RECT view, change the values of the DELAY and RANGE functions until
the measurement falls inside the viewable range of the display - see instructions below.
• When in B-SCAN view, change the values of the B-START and B-DEPTH functions until themeasurement falls inside the viewable range of the display. B-START is the equivalent of
DELAY and B-DEPTH is the equivalent of RANGE and the instructions for changing thesevalues is identical to those for DELAY and RANGE - see instructions below.
• Use the Auto Find function - see “Auto Find (CG100ABDL gauges only)” on page 18.
Note: Even if the waveform is outside of the viewable range of the display, a measurement can betaken and viewed using the DIGITS view.
5.6.1 DELAY AND RANGEThe DELAY is the thickness value from which the A-SCAN display starts on the left of the screen.
The RANGE is used to adjust the value at the right side of the screen. Using these two parameters
allows the user to zoom in to a specific measurement range and increase the level of detail on thedisplay. For example, if a wall thickness was nominally 25mm and an operator was assessing forcorrosion on this wall they might set the DELAY to 10mm and the RANGE to 30mm to fit as much
relevant information on the display as possible.
B-START and B-DEPTH are analogous to DELAY and RANGE for a B-SCAN display respectively.
DELAY and RANGE or B-START and B-DEPTH may be adjusted in the hot menu or in the DISP
section of the main menu.
5.6.2 Adjusting DELAY and RANGE (or B-START and B-DEPTH)
The quickest way to adjust DELAY and RANGE is directly from the hot menu. Alternatively, adjust
the values using the menus:
1. Select MENU/DISP/DELAY or RANGE and adjust using LEFT or RIGHT or press ENTER TO
use the Digits Edit Box
2. Press OK to set the value
3. Press MEAS to return to the measurement
5.7 ADJUSTING B-SCAN SCROLL SPEED (CG100ABDL gauges only)
The scrolling speed of the time-based B-SCAN can be adjusted to suit your measurement
techniques.
To adjust the scroll speed
1. Select MENU/DISP/B-SCAN SPEED
2. Choose a value between 1 and 10 (10 is fastest)
3. Press OK
4. Press MEAS to return to the measurement screen.
5.8 GAIN
The gain (the amplitude of the transmitted pulse) can be adjusted to suit a variety of applications.
To obtain valid readings the gain must be set to the correct level to give reliable return echoes:• Too much gain may result in erroneous measurements by detecting noise rather than thematerial back wall itself.
• Not enough gain may result in intermittent detection. It may also result in lack of detection oninternal flaws, pits, or porosity.

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The gain setting on your gauge can be compared to the volume control of a home stereo system.
If you turn it up too much you cannot hear the music clearly. If it is turned down too much, you cannot
hear it at all.
Note: When the echo-echo ThruPaint™ measurement mode is selected, the manual gain feature
is disabled and greyed out in the menu items. In this mode, your gauge switches to an automatic
gain mode (AGC) that optimises the gain setting automatically.
Your gauge has been optimised for a medium gain setting and for the majority of applications it canbe used at this setting. Some applications however may require lower or higher gain settings:• Lower values might be necessary for noisy or granular cast materials. If the reading becomessporadic and will not settle down or resolve on a thickness value.
• Higher values may be necessary when 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 until the stability indicator reports a goodmeasurement.
5.8.1 To Adjust the Gain Value
The quickest way to adjust GAIN is directly from the hot menu. Alternatively, adjust the value using
the menus:
1. Select MENU/TUNE/GAIN and adjust using LEFT or RIGHT or press ENTER to use the Digits
Edit Box.
2. Press OK to set the value.
3. Adjust to suit the measurement application.
4. Press MEAS to return to the measurement screen.
5.9 THRESHOLD (CG100ABDL gauges only)
The threshold is the level of signal amplitude required to trigger a gate and activate the digitalthickness reading. Increasing the threshold value decreases the sensitivity of the gauge as a more
powerful signal is required to trigger the gate. For example on the A-scan display it may be clearthat there is a flaw in the material but the thickness reading is not taking this into account; lowering
the threshold has the effect of increasing the sensitivity of the gauge to a level that the flaw can bedetected. More information on thresholds can be found on the Elcometer NDT Knowledge Centre
on www.elcometerNDT.com
5.9.1 To Adjust the Threshold Value
The quickest way to adjust a threshold value is directly from the hot menu. Alternatively, adjust thevalues using the menus:
1. Press MENU/GT1/THRESHOLD1 (THRESHOLD2 and THRESHOLD3 are accessed andadjusted in the same way from the menus for GT2 and GT3 respectively).
2. Adjust to suit the measurement application.
3. Press MEAS to return to the measurement screen.
5.10 GATES (CG100ABDL gauges only)Your gauge is equipped with gates which control the time measurement process.
For instructions on how to use gates, see “Gates (CG100ABDL gauges only)” on page 18.

6 MEASUREMENT - MODES
Your gauge has two basic measurement modes, Pulse-Echo and Echo-Echo, plus a number ofvariations on these modes for specific measurement tasks.

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If an auto identified transducer is fitted to the gauge the appropriate mode will be automatically set.
To select measurement mode manually, press MULTI MODE and then select the mode you want
to use from the list displayed.
Note: The availability of the modes depends upon the type of transducer fitted to the gauge.
6.1 PULSE-ECHO MODE (P-E),COATING OFF
The standard measurement mode providing maximum sensitivity. This general purpose mode
should be used for corrosion and flaw inspections and will measure the total thickness of a material.
6.2 PULSE-ECHO COATING MODE (PECT), COATING ON
Special mode that allows measurement of coating thickness and material thickness at the sametime while retaining the capability to detect flaws.
6.3 PULSE-ECHO TEMPERATURE COMPENSATED MODE (PETP), TEMP COMP
This is a custom mode that combines pulse-echo and electronic zero techniques to automaticallyadjust for temperature changes in the transducer as a result of an increasing/decreasing
temperature gradient in the test material.
Note: Rough surface conditions can have an effect on the overall accuracy in this mode. If thesurface condition is in question, the pulse-echo mode should be used in conjunction with performing
an off block automatic zero as the temperature gradient changes.
6.4 ECHO-ECHO MODE (E-E), THRUPAINT™
This special mode allows the user to measure the material thickness of a substrate underneath a
coating while ignoring the coating thickness by using two echoes from the material back wall. Thismode is useful when the coating thickness makes up a sizeable proportion of a material, but has
the impact of reducing sensitivity so should not be used in pit and flaw inspections.
6.5 ECHO-ECHO VERIFY MODE (E-EV), THRU VERIFYThis mode uses a third echo to double check the measurement, increasing the reliability of ameasurement even further from the E-E mode.
6.6 COATING ONLY MODE (CT), COATING ONLY
Similar to the PECT mode but reports the coating thickness only.
6.7 FLAW MODE
Your gauge includes a Flaw Mode.
For instructions see “Flaw Mode (CG100ABDL gauges only)” on page 21.

CT
PECT

EEV

CT
EE

PE

PE

IE

EE

EEV

PECT

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7 SETTING UP THE GAUGE
7.1 AUTOMATIC TRANSDUCER IDENTIFICATION
If using a coating thickness transducer, the gauge will ask you to
confirm the transducer type.
1. Press OK to use the identified transducer.
Note: Always select OK to use the identified transducer type.
2. Use UP or DOWN to toggle coating on/off
3. Ensure that the wearface is clean and free of any couplant or
debris then press OK to perform a probe zero.
4. Calibrate the gauge - see:• “Calibrating - for a Material” on page 14 and• “Calibrating - for a Coating” on page 15.

7.2 SELECTING THE TRANSDUCER TYPE MANUALLY
Note: If not using a coating thickness transducer, you will need to selecta transducer type from the predefined list so that your gauge may
recall specific transducer properties.
Follow these steps to select your transducer type:
1. When the CONFIRM screen displays the ‘UNIDENTIFIED PROBE
TYPE’ message, press OK to display the predefined list oftransducer types (by diameter and frequency).
2. Using UP or DOWN, scroll through the transducer list until the correct type is highlighted and then press ENTER.
3. Press OK to overwrite the existing transducer type with the newly
selected transducer type.
4. Your gauge will automatically advance to the Zero Probe menu.
7.3 TRANSDUCER - ZEROING
Setting the zero point for the transducer is important in the same waythat it is important for a mechanical micrometer. Zeroing takes into
account slight variations in the manufacturing process for maximum
accuracy. If zeroing is not carried out correctly, the measurements
taken by the gauge will be in error by some fixed value.
Your gauge has two zero probe options• Off Block or Automatic Probe Zero - The gauge conducts anelectronic zero without the need for a zero block (Allmeasurement modes)• On Block or Manual Probe Zero - Requires use of the zero block on the top of the gauge(Pulse to echo mode only)
For most applications the Off Block Zero will be sufficient, however if it is found the gauge linearity
is off and extreme accuracy is required an On Block Zero should be conducted followed by an Off
Block Zero. This will adjust and eliminate any error.
These options may be accessed from MENU/PRB.

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7.4 OFF BLOCK ZERO (AUTOMATIC PROBE ZERO)
1. When the ZERO PROBE screen is displayed, remove all couplant from the face of thetransducer and check that the wearface of the transducer is clean and free of any debris.
2. Press OK (or ESC to cancel).
When the automatic probe zero is completed the measurement screen is displayed.
Your gauge should now be calibrated.
7.5 ON BLOCK ZERO (MANUAL PROBE ZERO)
When this zero probe option is selected a warning screen is displayed informing you that you mustzero the probe before taking measurements.
1. Press MEAS to display the measurement screen.
2. Remove all couplant from the face of the transducer and check that the wearface is clean andfree of any debris.
3. Apply a drop of couplant on the transducer and place thetransducer as shown in diagram.
Note: Disregard the value displayed; it is not important. What is
important is accurately performing these steps to ensure
reliability of the zero calculation.
4. Press MEAS, scroll to the PRB menu, scroll to the ZEROPROBE function and then press ENTER.
The ZERO PROBE screen is displayed.
5. UP and DOWN to toggle coating on/off.
6. Press OK (or ESC to cancel).
When the manual probe zero is completed the measurement
screen is displayed.
7. Remove the transducer from the probe zero disk.
5Your gauge should now be calibrated.

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7.6 TRANSDUCER - ZEROING FOR COATING ONLYMEASUREMENTS
Your gauge features an additional zero coating feature for use when measuring coatings to a highaccuracy is required.
Note: For this procedure, a coating transducer must be fitted to the gauge.

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1. Press MULTI, scroll to COATING ONLY (CT) and press
ENTER. The measurement screen is displayed.
2. Apply a drop of couplant on the transducer and place thetransducer in steady contact with the probe zero disk (battery
cover) and obtain a steady reading - see illustration.
Note: Disregard the value displayed; it is not important. What is
important is accurately performing these steps to ensure
reliability of the zero calculation.
3. Select MENU/PRB/ZERO COATING and then press ENTER.
A confirmation screen is displayed.
4. Press OK (or ESC to cancel).
When the zero coating process is completed the measurement
screen is displayed.
5. Press MULTI MODE, scroll to COATING ON (PECT) and press
ENTER.
The measurement screen is displayed.
You can now take readings.

5

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2.

&/5

0($6

(6&

7.7 CALIBRATING - FOR A MATERIAL
Sound travels through different materials at different speeds, and in order to measure thesematerials accurately the correct sound velocity must be programmed into the gauge. Your gauge
features 3 different ways of doing thisKnown material calibration - The material to be measured is selected from a list in the gauge
Known velocity calibration - If the material sound velocity is known this may be entered manuallyin m s-1
Known Thickness calibration - A sample of the material to be inspected is measured using
alternative means and then used to calibrate the gauge.
• One-Point calibration is the simplest and most commonly used calibration procedure with best
performance over large measurement ranges• Two-Point calibration uses two samples of different thicknesses, with enhanced accuracy
over small ranges close to the sample thicknesses used
For the highest measurement accuracy use the known thickness calibration as this takes into
account variation in material composition, temperature and a variety of other factors.
7.7.1 Known Material Calibration
If the material velocity is unknown, and a sample thickness cannot be taken from the material, you
can choose a material type from a list stored in the gauge. For each material stored in the list there
is a corresponding velocity value.
Note: These velocities will not always be an exact representation of the material being tested. Usethese values only if a close approximation is acceptable.
1.
2.
3.
4.
5.

Select MENU/CAL/MAT.
Press ENTER to display the list of material types.
Scroll through the material list until the appropriate material is highlighted.
Press ENTER to choose the material type.
Press OK to select the material type and display the menu items with the new material typeselected
6. Press MEAS to return to the measurement screen.

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7.7.2 Known Velocity Calibration
If the material velocity is known, you can enter the velocity value directly into the gauge. A list of thesound velocities of common materials is given at the end of this instruction manual.
1. Select MENU/CAL/VELOCITY.
2. Press ENTER to display the Digits Edit Box.
3. Adjust to match the material velocity.
4. Press OK.
5. Press MEAS to return to the measurement screen.
7.7.3 Known Thickness Calibration
If the sound velocity of a material is unknown, a sample with one or two known thicknesses can beused to determine the sound velocity.
Note: Although the gauge has a ThruPaint™/coating feature, known thickness calibration must be
performed on material with the paint or coating removed.
One-point Calibration The one point calibration option is most suited for linearity over large
ranges. You should always calibrate on high side of the intended measurement range. For example,
if the measurement range is 2.5 mm to 25 mm (.100" to 1.0"), you should calibrate on a known
thickness sample close to 25. mm (1.0").
Note: Before you start this calibration procedure, perform a probe zero.
1. Apply a drop of couplant on the transducer and place the transducer in steady contact with thesample or the material being tested. Be sure that the reading is stable and the repeatability
indicator, in the top left corner of the display, is fully lit and stable.
2. Select MENU/CAL/MAT/PT.
3. Press ENTER to display the Digits Edit Box.
4. Adjust to match the material thickness.
5. Press OK to calculate the velocity and return to the measurement screen, or ESC to cancel.
Note: Place the transducer back on the calibration point. The thickness reading should now matchthe known thickness but if outside tolerance, repeat the steps above.
Two-point Calibration For improved accuracy over a smaller measurement range, conduct
one-point calibration followed by a two-point calibration. For example, if the measurement range is
2.0 mm to 6.35 mm (.080" to 0.250"), perform a one point calibration on a known thickness sample
close to 6.35 mm (.250"), followed by a two-point calibration close to 2.0 mm (.080").
Note: Before you start this calibration procedure, perform a probe zero.
1. Conduct a one point calibration routine as described previously in this section. You should
conduct this routine at the high end of the measurement range
2. Repeat the routine with another sample at the low end of the measurement range, except thistime enter the thickness into the MATL 2PT area in the CAL menu.
Note: CHECK YOUR CALIBRATION. Place the transducer back on both calibration points. If the
thickness is out of tolerance repeat the steps above.
7.8 CALIBRATING - FOR A COATINGYour gauge comes pre-set with a coating velocity of 2159 m s-1 that has been found to be a good
approximation of coatings found in the field.
Accuracy may be improved by calibrating for the coating in the same way that a material may becalibrated for, using either coating velocity or known coating thickness calibration.
• In PECT mode a one point calibration is required
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•

In CT mode a 2 - point calibration is required.

7.8.1 Known Coating Velocity
If the coating velocity is known, you can enter the velocity value into your gauge.
1. Select MENU/CAL /COATING VEL.
2. Press ENTER to display the Digits Edit Box.
3. Adjust to match the coating velocity.
4. Press OK.
5. Press MEAS to return to the measurement screen.
7.8.2 Known Coating Thickness
One-Point Calibration: Measure a sample of the coating and carry out the calibration using thesame method as for a material, except enter the coating velocity into the "COATING 1PT" area of
the CAL menu. Measure a coating sample on the high side of the measurement range
Note: The coating sample must be coupled to metal in order to calibrate successfully. Place a dropof couplant on a piece of metal, lay the coating sample over the couplant on the metal and carry out
the calibration
1. Physically measure a location on a coating sample using a set of calipers or a digital
micrometer.
Note: The coating sample must be coupled to metal in order to calibrate successfully. Place a dropof couplant on a piece of metal, lay the coating sample over the couplant on the metal and proceed
to step 2.
2. Apply a drop of couplant on the transducer and place the transducer in steady contact with thecoating (on metal) sample or actual test material. Be sure that the reading is stable and therepeatability indicator, in the top left corner of the display, is fully lit and stable.
3. Select MENU/CAL /COATING 1PT function.
4. Press ENTER to display the Digits Edit Box.
5. Adjust to match the coating thickness.
6. Press OK to set the coating velocity and return to the measurement screen, or ESC to cancel.
Note: CHECK YOUR CALIBRATION! Place the transducer back on the calibration point. The
coating thickness reading should now match the known coating thickness sample. If the thickness
is not correct, repeat the steps above.
Two-Point Calibration Use a thinner sample for the two point calibration.
1. Conduct a one point calibration routine as described previously in this section. You should
conduct this routine at the high end of the measurement range.
2. Physically measure the thinner of the two samples of the coating, as close as possible to theminimum expected coating measurement range, using a set of calipers or similar.
Note: If coating measurements are to be made with the coating applied to a metal surface, thecalibration must be done in the same manner, with the samples coupled to a metal surface.
However, if the coating is to be measured as a stand alone material, the calibration must be
performed the same way.
3. Apply a drop of couplant on the transducer and place the transducer in steady contact with thethinner of the two coating and samples. Be sure that the reading is stable and the repeatability
indicator, in the top left corner of the display, is fully lit and stable.
4. Select MENU/CAL/ COATING 2PT.
5. Press ENTER to display the Digits Edit Box.
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6. Press OK to set the coating velocity and return to the measurement screen, or ESC to cancel.
Note: CHECK YOUR CALIBRATION. Place the transducer back on both calibration points. If thecoating thickness readings match the known thickness values of each sample calibration has beensuccessful and you are now ready to take measurements. If the thickness is not correct, repeat thesteps above.

8 MEASUREMENT - TAKING READINGS
Disclaimer: Inherent in ultrasonic thickness measurement is the possibility that the instrument will
use the second rather than the first echo from the back surface of the material being measured. This
may result in a thickness reading that is TWICE what it should be.
Responsibility for proper use of the instrument and recognition of this phenomenon rests solely withthe user of the instrument.
Other errors may occur from measuring coated materials where the coating is insufficiently bonded
to the material surface. Irregular and inaccurate readings may result. Again, the user is responsible
for proper use and interpretation of the measurements acquired.
8.1 BEFORE YOU START• Prepare the surface - further information can be found via the Elcometer NDT Knowledge
Centre on www.elcometerNDT.com• Ensure the correct transducer is selected and set in the gauge - see “Selecting the Transducer
Type Manually” on page 12.
• Select the correct measurement mode (P-E, PECT, PETP, E-E, E-EV, CT) - see“Measurement - Modes” on page 10.
• Set the zero point of the transducer - see:• “Transducer - Zeroing” on page 12 and• “Transducer - Zeroing for Coating Only Measurements” on page 13.
• Calibrate the gauge - see:• “Calibrating - for a Material” on page 14 and• “Calibrating - for a Coating” on page 15.
• Choose the measurement view (DIGITS, RF or RECT, or B-SCAN) - see “The Measurement
Screen” on page 6.
8.2 PROCEDURE
1. Apply couplant
For the gauge to work correctly there must be no air gap between the transducer and thesurface of the material to be measured. This is achieved using a couplant.
Before the transducer is placed on the surface, put a small amount of couplant supplied withthe gauge on the surface of the material. Typically a single drop is sufficient.
2. Place transducer onto the surface of the material to be measured
Place transducer onto the surface of the material to be measured
Press the transducer wearface into the couplant. Only moderate pressure is necessary tokeep the transducer stationary and the wearface seated flat against the surface of thematerial.
3. Read display
If six or seven bars of the stability indicator are showing, the display will be reading the correct
thickness of the material directly beneath the transducer.
If the stability indicator has fewer than five bars showing, or the numbers on the display seemerratic, check to make sure that there is an adequate film of couplant beneath the transducer,17

enand that the transducer is seated flat against the material. If the condition persists, it may benecessary to:• adjust the gain, or• select a different transducer (size or frequency) for the material being measured.
The gauge will perform a number of measurements every second when the transducer is incontact with the surface of the material. The display is updated as each reading is taken.
4. Remove transducer from surface
The display will show the last measurement made.
Note: Occasionally, a small film of couplant will be drawn out between the transducer and thesurface as the transducer is removed. When this happens, the gauge may perform a measurement
through this couplant film. This phenomenon can be seen when one thickness value is observed
while the transducer is in place, and another value is observed after the transducer is removed. If
this happens, take the reading again using less couplant.

9 GATES (CG100ABDL gauges only)
9.1 INTRODUCTION
Further information on gates can be found on the Elcometer NDT Knowledge Centre on
www.elcometerNDT.com
9.2 ADJUSTING THE GATESThe quickest way to adjust the settings of the three gates is directly from the hot menu. Alternatively,
adjust the values using the menus:
1. Press MENU, GT1, GT2 or GT3 menu and then highlight the setting you wish to adjust.
2. Adjust to suit the measurement application.
3. Press OK to set the value and return to the menu screen, or ESC to cancel.
4. Press MEAS to return to the measurement screen.

10 THRUPAINT™ MEASUREMENT TECHNIQUE
10.1 INTRODUCTIONYour gauge is equipped with a through paint measurement mode that uses a multiple echo
technique to allow measurement of the material thickness beneath a coating. This is useful forchecking the material thickness of painted object.
ThruPaint™ capability is available in E-E and E-Ev modes, to activate ThruPaint™ operation selectone of these measurement modes using the "MULTI MODE" key.
Special "High Damped" or "Coating Thickness" transducers are required for this mode to function.
Further information may be found on the Elcometer NDT Knowledge Centre on
www.elcomterndt.com.

11 MEASUREMENT - OPTIONS
11.1 AUTO FIND (CG100ABDL gauges only)
When using a scan type display, the DELAY and RANGE (or B-START and B-DEPTH) must be set
correctly for the waveform to be shown on the display. If these parameters are set up incorrectly
nothing will be seen. The AUTO FIND function solves this problem by automatically adjusting theseparameters so that the relevant part of the waveform is shown on the screen.
To use the AUTO FIND function place the transducer on the material to obtain a reading, select
MENU/UTIL/AUTO FIND.
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11.2 HIGH SPEED SCAN
Although your gauge excels at making single point measurements, it is sometimes desirable toexamine a larger region, searching for the thinnest point. The gauge includes a feature, called
SCAN MODE, which allows it to do just that.
This mode increases the overall repetition rate to a maximum of 50Hz with a high speed screen
refresh rate of 25 times a second.
This feature enables the user to make scanned passes over an arbitrary length of the test material
while still maintaining a reasonable representation of thickness over the scanned area or region.
This feature can be used in conjunction with High and Low alarm limits features to keep track ofboth values dynamically.
To enable/disable the high speed Scan Mode:
1. Select MENU/UTIL/SCAN MODE.
2. Use the LEFT and RIGHT arrows to toggle the SCAN MODE on/off.
3. Press MEAS to return to the measurement screen, ready to begin taking readings.
11.3 ALARM MODE
Your gauge includes an Alarm Mode. Set the limits, and if a measurement falls outside of theselimits your gauge will signal an alarm (a red light on the front panel of the instrument and/or an
audible beep).
This feature may be used for a variety of applications to verify the material is within the manufacturer
specifications.
There are two limit values, ALARM LOW and ALARM HIGH. You can choose to activate both orjust one of these values depending on your requirements.
To enable/disable Alarm Mode:
1. Select MENU/UTIL/ALARM.
2. Use LEFT and RIGHT to toggle the ALARM on/off/audible.
3. Press MEAS to return to the measurement screen, ready to begin taking readings.
To set the Alarm limits:
1. Select MENU/UTIL/ALARM LOW or ALARM HIGH.
2. Press ENTER to display the Digits Edit Box.
3. Adjust to suit the measurement application.
4. Press OK to set the alarm value and return to the menu screen, or ESC to cancel.
5. Press MEAS to return to the measurement screen.
11.4 DIFFERENTIAL MODE
Your gauge includes a Differential Mode. Set the nominal value of thickness (based upon the
expected thickness value), and the gauge measures the difference (+/-) from this nominal value.
This feature is typically used in QA incoming inspections on pipes, plate stock, coils, etc.
To enable/disable Differential Mode:
1. Select MENU/UTIL/DIFFERENTIAL.
2. Use LEFT and RIGHT to toggle the DIFFERENTIAL on.
A value will appear to the right of DIFFERENTIAL.
3. Press MEAS to return to the measurement screen, ready to begin taking readings.
To set the Differential value:
1. Enable Differential Mode (see steps above).
2. When DIFFERENTIAL has been enabled and a value is being displayed to the right of the
DIFFERENTIAL label, press ENTER to display the Digits Edit Box.
3. Adjust to suit the measurement application.
4. Press OK to set the differential value and return to the menu screen, or ESC to cancel.
5. Press MEAS to return to the measurement screen.

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11.5 POLARITY (CG100ABDL gauges only)
The polarity that your gauge detects on can be set to either positive or negative to obtain the best
detection results depending on the specific measurement conditions of your application. Polarity
affects both the gate (above or below the x axis in the RF A-Scan) and the Rectified A-Scan display(whether the top or bottom half of the RF display is shown.
For further information refer to the Elcometer NDT Knowledge Centre on www.elcometerNDT.com
To adjust POLARITY:
Set the measurement screen view to RF. The option is found in MENU/TUNE/POLARITY
11.6 PULSE WIDTH (CG100ABDL gauges only)Your gauge has an adjustable pulse width option. Pulse width refers to the duration of time thepulser is switched on. Pulse width determines the amount of energy transmitted into the material
being tested.
There are three pulse width options:
Spike
The Spike option is used for high resolution and general applications and can be considered as thestandard setting.
Thin
When additional energy is needed for more penetration, the Thin option may be necessary.
Wide
When even more energy is needed for more penetration, the Wide option may be necessary.
High frequency applications, where resolution is a requirement, may require the Spike or Thinsettings to achieve optimal results. Low frequency applications, where more penetration is arequirement, may require the Thin or Wide settings, offering increased penetration. The variety oftransducer frequencies and diameters used in conjunction with the pulse width setting, enable you
to fine tune the gauge to your application needs.
To adjust the Pulse setting:
The option to adjust the PULSE WIDTH function is found in MENU/TUNE/PULSE
11.7 PULSER VOLTAGE (CG100ABDL gauges only)Your gauge has a 200 V square wave pulser that can be adjusted for specific applications andtransducers. The standard pulser setting is 150 V, and the Pulser Volt function allows you toincrease or decrease this value by 50 V to give greater penetration for difficult material types, orincreased resolution on noisy materials.
The option to adjust the Pulser Voltage setting is found in MENU/TUNE/PULSER VOLT.
11.8 ATTENUATOR (CG100ABDL gauges only)Your gauge has a 20dB signal attenuator and amplifier. This feature offers a cut/boost to the overallsignal strength. In instances where the 60 dB range is not enough, or too much, this feature allows
you to increase/decrease the amplifier strength by a power of 10 (20dB). The standard setting iszero, which is an arbitrary value. The attenuation value is added to the gain value. Therefore, if theattenuator is increased to 20dB, this value is added to the value of the gain setting.
The option to adjust the Attenuator setting is found in MENU/TUNE/ATTENUATOR.

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12 FLAW MODE (CG100ABDL gauges only)
12.1 INTRODUCTIONYour gauge includes a basic flaw prove up mode. Further information on flaw detection can befound on the Elcometer NDT Knowledge Centre on www.elcometerNDT.com
12.2 FLAW MODE VIEW
FeatureDescription

A

Horizontal gridlines on the display represent
increments of 25% of the full screen heightB

The thickness reading normally occupying
this space is not relevant to flaw detection. It
is replaced by a dashed lineC

The peak hold symbol is only visible whenflaw mode is set to peak. Indicates the highest amplitude reflection detected during ascan. Pressing CLR will reset the position of
the peak hold symbol to zeroD

Vertical gridlines on the labelled with quadrant numbers. Unlike thickness mode they do
not correspond to the material thickness

12.3 ENABLING FLAW MODE
To use Flaw Mode, an angle beam transducer and dual lemo to single microdot cable are required.
These are available from Elcometer NDT.
1. Attach the dual lemo to microdot cable and angle beam transducer to the gauge.
2. Press MENU, scroll to the PROBE menu and then highlight the FLAW MODE function.
3. Use LEFT and RIGHT to adjust the value of the FLAW MODE function (OFF, ON, PEAK):• OFF - Disables FLAW MODE
• ON - Enables FLAW MODE
• PEAK - Enables the FLAW MODE and PEAK HOLD options and view. When this option isenabled, the peak hold symbol is displayed on the right side of the display (to reset tozero, press CLR).
4. Press MEAS to return to the measurement screen.
Note: When flaw mode is activated, a transducer delay will still be configured from the previously
loaded transducer. This will only affect the position of the starting point from the initial pulse. The
zero delay can be set to zero by loading the default setup located in the setup menu. Alternatively,
you can load a factory flaw mode setup, and begin making any adjustments necessary.

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13 MEASUREMENT - RECORDING YOUR READINGS (CG100DL gauges only)Your gauge is equipped with a data logger -. With a data file open, all your measurements are saved
into the file for later review and download to PC.
13.1 ABOUT THE DATA LOGGER
With a data file open, as you take measurements, the measurement data is stored in files in thegauge memory.
Data logger file format:
You have a choice of two different file formats:••

Grid format: Similar to a spreadsheet format in which each cell is used to store a reading. Cells
are referenced by the row number (1 to 999) and the column label (A to ZZ).
Sequential format: A single column of up to 512 possible rows (readings), and a column ofcorresponding identifiers associated with each individual reading. The identifier can be a
combination of up to 10 alphanumeric/special characters (see below), however it must notstart or end with a special character. Once a start and end ID are entered into the gauge andthe log created, the gauge automatically generates all the identifiers within that range.

Data logger filename character sets:
Any combination of the following characters can be used for file names and sequential format
identifiers:• Numeric characters: 0 - 9• Alpha Characters: A - Z• Special Characters: ! ' _ # space / . - ( )What measurement data is saved:
When a measurement is taken (irrespective of log file format), the following information is saved:• The reading value.
• A screenshot, the nature of which will depend on what view the gauge was in at the time thereading was taken. For example, if the view was in B-SCAN, then a B-SCAN screenshot will
be saved with the reading. This 'Save Graphics' option can be toggled on/off.
Memory capacity:
You can create and save as many data files as required up to the maximum capacity of the gauge
memory (32 Mbit). If you try to create a new file which exceeds the memory capacity, the gauge will
display an error message. Saved data must be deleted in order to make the space available.
Save Graphics Option

Memory Capacity(readings)

On

16 000 +Off

210 000 +22

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13.2 CREATING A NEW DATA LOGGER FILE - GRID FORMAT
To create a GRID log data file:
1. Select MENU/DATA/NEW.
2. Use (LEFT) or (RIGHT) to choose between grid and sequential log types
3. Press ENTER to continue.
4. Fill in a name and a note (if desired) for your data logger file.
5. Select the size of the grid. Grid positions are denoted by a number and a
letter, where the letter is the column and the number is the row.
Use TOP LEFT and LOWER RIGHT to define the size of the grid. For
example, a with the TOP LEFT set to A001 and LOWER RIGHT C003 would
produce a 3x3 grid.
The grid can have a maximum of 52 columns and 999 rows
6. Set the Auto Increment direction. This option allows you to select which
direction the cursor moves after a reading is stored in terms of compass
points. For example NORTH would move the cursor up a row, and WEST
would move a column left.
7. Choose whether to activate SAVE GRAPHICS or not (snapshot of the A OR
B scan on screen).
8. Finally create the log by scrolling to CREATE LOG, pressing ENTER andthen OK to confirm.
The measurement grid is now displayed along with the grid name on screen.

13.3 CREATING A NEW DATA LOGGER FILE - SEQUENTIAL FORMAT
To create a SEQ log data file:
1. Scroll to the DATA section of the main menu and highlight.
2. Select NEW and use LEFT and RIGHT to choose between grid andsequential log types.
3. Press enter to continue.
4. Fill in a name and a note (if desired) for your data logger file. Press OK
when complete.
5. Choose a START ID (see section 13.1).
6. Choose a END ID (see section 13.1).
7. Scroll to DIRECTION and select NONE, INCrement or DECrement to not
move or move either right or left through the sequential log automaticallywhen a reading is saved.
8. Finally create the log by scrolling to CREATE LOG, pressing ENTER andthen OK to confirm.
13.4 HANDLING LOGGER FILES
Once created, logger files may be opened or closed using the functions "OPEN"
and "CLOSE".
Closing logger files places the gauge in immediate mode and will prevent
accidental saving of data into an inappropriate log.
13.5 STORING READINGS IN A DATA LOGGER FILE
1. Create a new data logger file or open an existing file.
The grid or sequential file is displayed in the lower half of the measurement
screen.
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2.

3.

4.
5.
6.

7.

Note: Once the file is open, it will remain open until it is closed or another file is opened. If thegauge is switched off, the file will be opened automatically when the gauge is switched on
again. Press the ENTER key to display the file from the measurement screen.
If you want to save the reading to a particular cell location, scroll to the desired cell.
Note: The cell location must be empty. If it already contains a reading and you want to save a
new reading to the same location, refer to the instructions given in “Viewing and Deleting
readings” on page 24.
Take a reading and then press ENTER.
The reading value is saved in the file at the location selected and the cursor advances to thenext cell according to the rules set for the data logger file:• Grid log data file only: If INCR. DIR is set to NORTH, EAST, SOUTH or WEST, the cursor
will advance one cell in the chosen direction. When the cursor reaches the last cell in therow or column it will return to the other end of the row or column.
• Sequential log data file only: If DIRECTION is set to INC or DEC, the cursor will advanceone cell in the chosen direction. When the cursor reaches the last cell in the column it will
return to the other end of the column.
Note: If you try to save a reading into a cell location which already contains a reading value, awarning message is displayed (see Deleting a reading).
Grid log data file only: To advance to a specific row number, press OK enter the row number.
Press OK to advance directly to that row number in the grid log.
To toggle the display between DIGITS view and B-SCAN view, press ESC.
If you are unable to take a measurement due to the measurement location being physicallyinaccessible, press CLR.
The cell location in the data file is marked OBST (Obstruct).
The display of the log data file on the measurement screen can be switched on and off:
• To switch off, press MEAS
• To switch on, press ENTER

13.6 VIEWING AND DELETING READINGSWith a data file open:
1. Use the arrows to scroll through the cells in the data file.
As the cursor is moved to a different cell, the display is updated with the display view savedwith the reading (if SAVE GRAPHICS was set to YES). Readings stored in memory are
indicated by MEM in the top left corner of the measurement screen (in place of the bars of thestability indicator).
2. To delete a reading, scroll to the cell location, press CLR and then OK (or ESC to cancel).
The reading is deleted and if you wish you can now take another measurement and save thereading in this cell location.
13.7 EDITING A DATA LOGGER FILE
You can edit the following fields of data files:• Grid files: NAME, NOTE, and INCRement DIRection• Sequential files: NAME, NOTE, DIRECTION and LOG SIZE
To edit a file:
1. Open the data file.
2. EDIT and press ENTER.
The EDIT GRID LOG (or EDIT SEQ LOG) screen is displayed and lists all the fields which canbe edited.
3. Scroll to the field you want to edit, press ENTER and then adjust the contents of the field using
the techniques previously described to create a data file - see page 23.
4. When finished, scroll to SAVE CHANGES, press ENTER and then OK (or ESC to cancel).
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13.8 DELETING A DATA LOGGER FILE
1. Select MENU/DATA/DELETE ONE FILE.
2. Press ENTER.
The OPEN LOG screen is displayed and lists all the data files stored in your gauge memory.
3. Scroll through the list until the data file you want to delete is highlighted.
4. Press OK (or ESC to cancel).
The file is deleted.
13.9 DELETING ALL DATA LOGGER FILES
Note: This will delete all the data logger files in gauge memory - use with caution.
1. Select MENU/DATA/DELETE ALL DATA.
2. Press ENTER and then OK to confirm (or ESC to cancel).
The data logger memory is erased - all files are deleted.

14 GAUGE SETUPSYour gauge contains 64 configurable preset locations in which you can store custom gauge setups,
each one optimised for a specific measuring application.
These gauge setups can save time when conducting routine inspections of the same job or project.
This feature also helps to eliminate error between two or more users during the setup andcalibration process.
The setups store:• Measurement mode
• Transducer type• Gain setting• Scan mode setting• Alarm settings• Differential settings• Display type setting
As well as storing the setups in your gauge, you can also store the setups on a computer andtransfer them bi-directionally using the PC interface software included with the gauge.
The factory supplied setups stored in the gauge cover some of the more typical applications
commonly used with this type of instrument and may be modified freely by the user.
The PC interface software includes a default setup file that can be uploaded to the gauge at any
time to restore factory settings. However, you should consider saving modified setups to an empty
location rather than overwriting the factory setups in your gauge.
14.1 OPENING A SETUP
1. Select MENU/SET/OPEN.
2. Press ENTER to display the SETUP LIST BOX.
3. Scroll through the list of setups until the required setup is highlighted.
4. Press ENTER to activate the confirmation screen.
5. Press OK to load the setup from memory.
6. Press MEAS to return to the measurement screen.
14.2 SAVING AND EDITING A SETUP
Once the parameters and features have been adjusted for an application,
you can save these setting to a specific setup location for future use.

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It is sometimes necessary to rename a previously saved setup, or add additional comments abouta particular setup. The other comments about the project may also be required for additional
documentation purposes.
The following procedures outline the necessary steps for saving and editing a setup:
1. Press MENU, SET and SAVE.
2. Press ENTER to display the Save Setup edit box.
3. Scroll to NAME and then press ENTER to edit its value:• When you have finished, press OK to enter the value.
4. If you want to add a note, repeat step 3 for NOTE.
5. When you have finished, scroll to SAVE SETUP and press ENTER.
The setup list screen is displayed.

6. Scroll through the list of setups until the required location to save thesetup is highlighted.
7. Press OK to activate the confirmation screen.
8. Press OK to save the Setup, or ESC to cancel.
Note: The Name and Note parameters of a Setup can be edited at any timeby repeating the Save Setup routine described above. Therefore, the Save
Setup function can also be considered an Edit Function.
14.3 DELETING A SAVED SETUPThis option deletes a setup file from your gauge (for example, if it is no longer
needed).
1. Press MENU, scroll to the SET menu and then highlight the DELETE function.
2. Press ENTER to display the SETUP LIST BOX.
3. Scroll through the list of setups until the required setup is highlighted.
4. Press ENTER to activate the confirmation screen.
5. Press OK to delete the setup from memory.
14.4 USING THE DEFAULT SETUPYour gauge includes a default setup which you can use if there are no other setups stored in thegauge and you need to reset it to factory settings. This gives you the ability to load and modify abasic setup as follows:
1. Press MENU, scroll to the SET menu and then highlight the DEFAULT SETUP function.
2. Press ENTER to activate the confirmation screen.
3. Press OK to confirm.
4. Press OK again to confirm.

15 DATA TRANSFER SOFTWARE
Software is available which allows data to be transferred from your gauge to a PC. Presently
Elcometer supplies ElcoMaster™ software for this purpose.
To set-up other types of communications software:
1. Start the communications software.
2. Configure the software using the following parameters:
Data Bits - 8, Parity - None, Stop Bits - 1, Baud Rate 1200 (to print a report), or 9600 totransfer data file.

26

enNote: A report can be printed to a communications program (i.e. HyperTerminal), or printed toa serial printer using A4 or 8.5" x 11" paper.
3. Set the communications software COM port to the port number that the gauge is connected to.
15.1 TRANSFERRING MEASUREMENT DATA TO YOUR COMPUTER
15.1.1 RS-232 Connector
The RS-232 connector, located on the bottom end cap of the gauge, is a 2 pin female Lemo
connector. It is designed to connect directly from the gauge to a standard AT serial port on a PC. A
Lemo to 9 pin serial cable is supplied with the gauge.
Note: This connector is also used to upgrade the gauge with the latest version of firmware.
15.1.2 USB to Serial Converter
Some newer laptop computers do not have standard serial ports. In this case, use the USB to Serial
converter supplied with the gauge.
15.1.3 Computer System Requirements
ElcoMaster™ is compatible with any Windows computer system running Windows XP or above.
15.1.4 Using the XFER menu
The XFER menu of your gauge is used in conjunction with the ElcoMaster™ PC software. The steps
below outline the procedure for accessing the XFER menu and basic operation as follows:
1. Scroll to the XFER section of the main menu.
2. Press ENTER to activate the option selected.
3. Once the Backup or Restore function has been completed, press MEAS once to return to themenu items, or twice to return to the measurement mode.

16 STORAGE
Your gauge has a Liquid Crystal Display. If the display is heated above 50°C (120°F) it
may be damaged. This can happen if the gauge is left in a car parked in strong sunlight.
Always store the gauge in its case when it is not being used.
If the gauge is to remain unused for long periods of time, remove the batteries and store
them separately. This will prevent damage to the gauge in the event of malfunction of
the batteries.

17 MAINTENANCE
You own one of the finest corrosion gauges in the world. If looked after, it will last a lifetime.
17.1 FAULTSYour gauge is designed to give many years reliable service under normal operating and storage
conditions. The gauge does not contain any user-serviceable components. In the unlikely event ofa fault, the gauge should be returned to your local Elcometer NDT supplier or directly to Elcometer
NDT. The warranty will be invalidated if the instrument has been opened.
17.2 TRANSDUCER
The transducer will wear with repeated use. To extend transducer life, always set the transducer
down so that it is perpendicular to the panel surface. Dragging the transducer along the surface will
reduce the life of the transducer. Replacement transducers are available from your local Elcometer
NDT supplier or directly from Elcometer NDT.

27

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18 TECHNICAL SPECIFICATION
18.1 PERFORMANCE
Range

Pulse-Echo P-E

0.63 mm to 500 mm (0.025” to 19.999”)

Pulse-Echo Coating PECT

Material: 0.63 mm to 500 mm (0.025” to 19.999”)
Coating: 0.01 mm to 2.54 mm (0.001” to 0.100”)

Pulse-Echo Temp CompPETP

0.63 mm to 500 mm (0.025” to 19.999”)

Echo-Echo E-E

1.27 mm to 102 mm (0.050” to 4.0”)
Range will vary +/- depending on the coating.

Echo-Echo Verify E-EV

1.27 mm to 25.4 mm (0.050” to 1.0”)
Range will vary +/- depending on the coating.

Coating Only CT

0.0127 mm to 2.54 mm (0.0005” to 0.100”)
Range will vary +/- depending on the coating.

Resolution

0.01 mm (0.001")

Velocity Range

1250 m/s to 13995 m/s (0.0492 in/µs to 0.5510
in/µs)

18.2 PHYSICAL
Weight (including batteries)

380 g (13.5 oz)

Dimensions (W x H x D)

63.5 mm x 165 mm x 31.5 mm (2.5” x 6.5” x 1.24”)

Gauge Operating Temperature-10°C to 60°C (14°F to 140°F)

Case

Aluminium case design with gasket sealed end caps, waterproof
membrane keypad.

Data Output

Bi-directional RS232 serial port. Windows PC interface software

Display

Backlit greyscale display (240 x 160 pixels). Viewable area 62
mm x 45.7 mm (2.4" x 1.8"). EL backlit (on/off/auto).

Power Source

Three 1.5 V AA alkaline or rechargeable cells. Typically operates
for 25 hours on alkaline cells and 12 hours on rechargeable cells(charger not included.)
Note: Alkaline cells must be disposed of carefully to avoid
environmental contamination. Please consult your local
environmental authority for information on disposal in your region.
Do not dispose of any cells in fire.

28

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19 WARRANTY
Elcometer NDT warrants your gauge against defects in materials and workmanship for a period of
two years from receipt by the end user.
Additionally, Elcometer NDT warrants transducers and accessories against such defects for aperiod of 90 days from receipt by the end user. If Elcometer NDT receives notice of such defects
during the warranty period, Elcometer NDT will either, at its option, repair or replace products thatprove to be defective. The warranty will be invalidated if the instrument has been opened.
19.1 EXCLUSIONS
The above warranty shall not apply to defects resulting from: improper or inadequate maintenanceby the customer; unauthorised modification or misuse; or operation outside the environmental
specifications for the product.
Elcometer NDT makes no other warranty, either express or implied, with respect to this product.
Elcometer NDT specifically disclaims any implied warranties of merchantability or fitness for aparticular purpose. Some states or provinces do not allow limitations on the duration of an implied
warranty, so the above limitation or exclusion may not apply to you. However, any implied warrantyof merchantability or fitness is limited to the two-year duration of this written warranty.
This warranty gives you specific legal rights, and you may also have other rights, which may varyfrom country to country, state to state or province to province.
19.2 OBTAINING SERVICE DURING WARRANTY PERIOD
If your hardware should fail during the warranty period, contact Elcometer NDT and arrange forservicing of the product. Retain proof of purchase in order to obtain warranty service.
For products that require servicing, Elcometer NDT may use one of the following methods:• Repair the product• Replace the product with a re-manufactured unit
• Replace the product with a product of equal or greater performance• Refund the purchase price.
19.3 AFTER THE WARRANTY PERIOD
If your hardware should fail after the warranty period, contact Elcometer NDT for details of theservices available, and to arrange for non-warranty service.

20 SPARES & ACCESSORIES
20.1 TRANSDUCERS
Elcometer NDT gauges are not supplied with a transducer as standard - this must be orderedseparately.
The transducers listed below are the most commonly used however, Elcometer NDT offer a wide
range of other transducers to suit various applications.
Further information on the transducers available and their applications can be found on the
Elcometer NDT Knowledge Centre on www.elcometerNDT.com
Description
2.25 MHz 1/4” Potted Side Transducer
5 MHz 1/4” Potted Side Transducer
5 MHz 1/4” Potted Side High Damped Transducer
7 MHz 1/4” Potted Side High Damped Transducer
10 MHz 1/4” Potted Side Transducer
5 MHz 1/4” Potted Side CT Transducer
5 MHz 1/2” Potted Top CT Transducer

Sales Part No.
TX2M25CP-2
TX5M00CP-4
TX5M00CP-10
TX7M50CP-6
TX10M0CP-4
TX5MC0CP-6
TX5MC0EP-529

enCalibration blocks
Elcometer NDT offer a comprehensive range of calibration blocks to suit a wide range ofapplications and standards.
Selecting the correct calibration block for the application is essential to ensure accurate evaluation.
The form, shape and material of the calibration block should be appropriate for the material being
inspected. Any artificially induced flaw should closely resemble that of the actual flaw being testedfor.
The calibration blocks listed below are a selection of those available - details of the full range canbe found on www.elcometerNDT.com
Description
Sales Part No.
Calibration Block: 8 Step; 1 - 8mm
TW-24005-*
Calibration Block: 10 Step; 2 - 20mm
TW-24006-*
Calibration Block: 10 Step; 2.5 - 25mm
TW-24007-*
Replace * with S1018 = 1018 Steel Block; A = Aluminium Block; SS = Stainless Steel Block;
T = Titanium Block.

20.2 ULTRASONIC COUPLANT
Each gauge is supplied with a 120 ml (4 fl oz) bottle of standard ultrasonic couplant. Replacement
bottles and couplant for high temperature applications are available from your local Elcometer NDT
supplier or directly from Elcometer NDT.
Description
Ultrasonic Couplant, 120 ml (4 oz)
Ultrasonic Couplant, 360 ml (12 oz)
Ultrasonic Couplant, High Temperature 510°C (950°F), 60 ml (2 fl oz)

Note: A wide range of otherwww.elcometerNDT.com for details.

transducers

andSales Part No.
TC-24034-1
TC-24034-2
TC-24034-9

accessories

isavailable-see

20.3 MISCELLANEOUS
Description
RS232 Cable USB to Serial Converter

Sales Part No.
TL-24031

21 CONDITION AND PREPARATION OF SURFACES
Further information can
www.elcometerNDT.com

be

found

on

the

Elcometer

NDT

Knowledge

Centre

on

be

found

on

the

Elcometer

NDT

Knowledge

Centreon

22 APPLICATION
Further information can
www.elcometerNDT.com

30

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23 SOUND VELOCITIES OF COMMON MATERIALS
Material

Sound velocity(m/s)(in/µs)

Aluminium
BismuthBrass
Cadmium
Cast Iron

6350
2184
4394
2769
4572

Constantan
CopperEpoxy Resin

5232
4674
2540

German Silver
Glass, Crown
Glass, Flint
Gold

4750
5664
4267
3251

0.250
0.086
0.173
0.109
0.180
(Approx.)
0.206
0.184
0.100
(Approx.)
0.187
0.223
0.168
0.128

Ice
Iron
Lead
Magnesium
Mercury
Nickel
Nylon

3988
5893
2159
5791
1448
5639
2591

0.157
0.232
0.085
0.228
0.057
0.222
0.102
(Approx.)Material

Sound velocity(m/s)(in/µs)Paraffin
Platinum
Plexiglas
Polystyrene
Porcelain

2210
3962
2692
2337
5842

PVC
Quartz Glass
Rubber, Vulcanised
SilverSteel
Steel, StainlessStellite

2388
5639
2311

0.087
0.156
0.106
0.092
0.230
(Approx.)
0.094
0.222
0.091

3607
5918
5664
6985

TeflonTin
Titanium
Tungsten
Water
Zinc

1422
3327
6096
5334
1473
4216

0.142
0.233
0.223
0.275
(Approx.)
0.056
0.131
0.240
0.210
0.058
0.166

31

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24 THE MENU COMMANDS
Menu
PRB(PROBE)CAL(CALIBRATION)

Function

Description

ZERO PROBE

Zeros your gauge in much the same way that a mechanicalmicrometer is zeroed. If your gauge is not zeroed correctly,
all of the measurements made may be in error by somefixed value. You can choose between automatic zero or
manual zero.

ZERO COATING

In order to account for very slight electronic differences intransducers of the same type, frequency, and diameter,
your gauge includes this "zero coating" feature. This feature enables your gauge to obtain very accurate readings
on coatings, eliminating potential errors incurred from slightdifferences in the transducer manufacturing processes.

TYPE

Use this function to select the type of transducer being
used from a chart of transducer types. This provides
increased linearity between transducers.

FLAW(ABDL only)

Activates the flaw detection mode and view. This feature isfor use with single element angle beam transducers andused as a general prove-up flaw inspection mode.

MAT

Select the material velocity from a chart of basic material
types when a known sample thickness, or material velocity
cannot be obtained.

MATL 1PT

Performs a single point calibration. This function allows you
to automatically calculate the velocity by entering a known
sample thickness.

MATL 2PT

Performs a two-point calibration. This function allows you to
automatically calculate the velocity by entering a second
known sample thickness.

VELOCITY

This function calibrates your gauge by setting the velocity
to a known material velocity.

COATING 1PT

Performs a single point coating calibration. This function
allows you to automatically calculate the velocity by measuring a known coating sample thickness.

COATING 2PT

Performs a two-point coating calibration. This function
allows you to automatically calculate the velocity by entering a second known coating sample thickness.

COATING VEL

This function calibrates your gauge to a specific coating
material type by entering a coating velocity.

32

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Menu
DISP
(DISPLAY)

Function

Description

VIEW

Choose between RF wave, RECT (rectified) wave, BSCAN(cross section), and DIGITS (large digits) views.

DELAY(B-START)

Adjust where the left side of the display window starts
according to thickness, in inches or millimetres.

RANGE(B-DEPTH)

Set the overall depth of the viewable measurement area. It
functions a lot like a zoom on a camera.

B-SCANSPEED

Adjusts the scroll speed of the B-Scan.
Scale is 0-10 where 10 is the fastest. Default setting: 6.

UNITS

Toggle between Metric (millimetres) or English (inches)
units.

CONTRAST

Adjusts the brightness of the display.
Scale is 0-20 where 20 is the contrast.

RECT WAVE

Toggles between an outlined or filled view option when thedisplay setting is in RECT (rectified) wave mode.

DETECT MARK Choose the format of the vertical line on the RF and RECT
measurement screens which shows the detection point:Line, Box, Dots, None.
TUNE

MEASURE
MODE

Choose which measurement mode to use.

POLARITY(ABDL only)

The gauge operates on a zero crossing detection principle.
This feature toggles which stroke of the cycle the crossing
detection uses, either positive or negative.

PULSE(ABDL only)Your gauge has adjustable pulse width for both highpenetration and resolution applications. The pulse widthrefers to the duration of time the pulser is on. The options
are SPIKE, THIN, and WIDE.

PULSER VOLT(ABDL only)

Provides a 50 V cut/boost to the pulser. The standard setting
is 150 V. Provides greater penetration for difficult material
types, or increased resolution on noisy materials.

ATTN(ABDL only)

Provides 20dB attenuation or 20dB amplification of signal
strength. Provides increased or decreased amplifier
strength by a power of 10 (20dB). This attenuation value isadded to the gain value. Therefore, if the attenuator isincreased to 20dB, this value is added to the value of thegain setting.

GAIN

Increases or decreases the overall amplitude of the signal.
Gain is similar to the volume control on a stereo receiver.

AGC

When operating in E-E or E-EV mode, the gauge adjusts thegain automatically. Alternatively, the AGC can be manuallycontrolled.

33

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Menu
GT1
(GATE 1)
(ABDL only)

GT2(GATE 2)
(ABDL only)

GT3(GATE 3)
(ABDL only)

SET(SETUP)

Function

Description

GATE1

Sets the start of the gate, according to time/distance.

GATE1 WIDTH

Sets the overall width of the gate, in terms of distance, fromthe starting value of Gate1

THRESHOLD1

Sets the sensitivity level of Gate1. The amplitude of thesignal must reach or exceed this threshold level before ameasurement is detected.

GATE2 WIDTH

Sets the overall width of the gate, in terms of distance, fromthe starting value of HOLDOFF 2.

HOLDOFF 2

Delay the starting point of Gate2 a specific distance from thefirst detection point found inside of the boundaries of theGate 1 settings. If no detection is found, the value of GATE1WIDTH is used as a starting value for Gate2.

THRESHOLD2

Sets the sensitivity level of Gate2. The amplitude of thesignal must reach or exceed this threshold level before ameasurement is detected.

GATE3 WIDTH

Sets the overall width of the gate, in terms of distance, fromthe starting value of HOLDOFF 3.

HOLDOFF 3

Delay the starting point of Gate3 a specific distance from thefirst detection point found inside of the boundaries of theGate2 settings. If no detection is found, the value of GATE2WIDTH is used as a starting value for Gate3.

THRESHOLD3

Sets the sensitivity level of Gate3. The amplitude of thesignal must reach or exceed this threshold level before ameasurement is detected.

OPEN

Displays a list of factory and user-defined setups currently
stored in memory. These setups can be recalled and used
at any time.

SAVE

Save a custom setup that you have modified or created.

DELETE

Delete specific setups previously saved in memory.

DEFAULT
SETUP

Loads a basic default setup. Use only as a last resort if the
setups in your gauge have been corrupted and a computeris not accessible.

LANGUAGE

Select the menu language

34

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Menu
DATA
(DL only)

Function

Description

NEW

Creates a new alpha numeric grid, or sequential log filewith auto identifiers. You can customise the grid or sequential log file according to your requirements.

EDIT

Modify the parameters of grid or sequential files previously
saved.
Note: Predefined coordinates cannot be changed once they
have been created.

UTIL(UTILITIES)XFER(TRANSFER)

OPEN

Recalls existing grids or sequential log files from gauge
memory.

CLOSE

Closes a currently opened grid or sequential log file.

DELETE ONE
FILE

Deletes a selected grid or sequential log file from memory.

DELETE ALL
DATA

Deletes all files currently stored in memory.

AUTO FIND(ABDL only)

Automatically locates the detection point
measurement is out of the viewable display area.

SCAN MODE

Enables a high speed scan mode that increases the overall
sample rate from 25 to 50 measurements per second,
depending on the current measurement mode used.

if

the

ALARM

Toggles alarm mode ON, OFF, or AUDIBLE.

ALARM HIGH

Sets the HI limit parameter. If the measurement exceeds
this value, a red light will illuminate and the alarm willsound.

ALARM LOW

Sets the LOW limit parameter. If the measurement falls
below this value, a red light will illuminate and the alarm willsound.

DIFFERENTIAL

Sets a nominal value and your gauge will display +/- the difference from this nominal value.

BACKUP
SETUPS

Allows you to backup the setups currently stored in yourgauge to a computer via the RS232 port.

RESTORE
SETUPS

Allows you to restore setups saved on a computer to yourgauge via the RS232 port.

BACKUP DATA

Allows you to backup grids or sequential log files stored inyour gauge to a computer via the RS232 port.

RESTOREDATA

Allows you to restore grids or sequential log files saved on
a computer to your gauge via the RS232 port.

ABOUT

Provides Elcometer NDT contact information and yourgauge software version.
Refer to the help section of your gauge ElcoMaster ™ for acomplete electronic manual covering data transfer.

35

25 INDEX
A
Adjusting the Gates
Alarm
Attenuation
Attenuator
Auto Find
Automatic Transducer Identification

18
19
20
20
18
12

B
Batteries
B-SCAN Measurement Screen
B-SCAN Scroll Speed

5
8
9

C
Calibration
Calibration One Point
Calibration Two Point
Coating Calibration
Coating Only Mode (CT)
Coating Zero
Couplant
Cut/Boost

14
15, 16
16
15
11
13
17
20

D
Data logger
Default Setup
Delay
Deleting readings
Differential Mode
Digits Measurement Screen
Display

22
26
9
24
19
8
6

E
Echo - Echo (E-E)
Echo - Echo Verify Mode (E-EV)

11
11

F
Flaw Mode

21

G
Gates
Gauge Setups
Grid Log

10
25
23

H
High Speed Scan

36

19

K
Known Material Calibration

14

M
Measurement Modes
Measurement Procedure
Measurement Screens
Measuring Coatings
MemoryMenu Commands

10
17
7
15
22
32

O
Off Block ZeroOn Block Zero
One Point calibration

12
12
14

P
Packaging
Peak
Polarity
Probe Zero
Pulse - Echo (P-E)
Pulse - Echo Temp Compensation(PETP)
Pulse Width
Pulse-Echo Coating (PECT)
PulserPulser Voltage

11
20
11
20
20

R
RECT A-Scan Measurement Screen
Reset
RF A-Scan Measurement Screen

8
26
8

4
21
20
12
11

S
Saving Data
Scan Mode
Selecting menu language
Sequential Log
Spike Pulse
Stability Indicator
Switching On/Off

22
19
6
23
20
7, 18
5

T
The Menu Commands
Thin Pulse
Threshold

32
20
10

INDEX
ThruPaint
Transducer
Transducer delay line
TuningTwo Point Calibration

11
5
17
20
14

V
Viewable Range
Viewing Readings

924WWide Pulse

20

Z
Zero Coating
Zeroing13
1237