Elcometer PTG6 User manual

User Guide

Elcometer NDT

Model PTG6 & PTG8

Precision Material Thickness Gauges

www.elcometer.com

Gauge Overview

Box Contents

Using the Gauge

Getting Started (including Display Modes)

Setting Limits - PTG8

Calibration Methods

Calibrating Your Gauge

PIN Lock

Taking a Reading

Batching - PTG8

Reviewing Batch Data - PTG8

Menu Structure - PTG6

Menu Structure - PTG8

Downloading Data - PTG8

Upgrading Your Gauge

Spares & Accessories

Warranty Statement

Technical Specification

Legal Notices & Regulatory Information

Appendix 1: Preparing The Test Surface

For the avoidance of doubt, please refer to the original English language version.

Gauge Dimensions: 145 x 73 x 37mm (5.7 x 2.87 x 1.46") - without transducer

Gauge Weight: 210g (7.4oz) - including batteries, without transducer

A Material Safety Data Sheet for the ultrasonic couplant supplied with the Elcometer PTG6 & PTG8 and available

as an accessory, is available to download via our website:

www.elcometer.com/images/stories/MSDS/Elcometer_Ultrasonic_Couplant_Blue.pdf

stored (in a retrieval system or otherwise) 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.

CONTENTS

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1 GAUGE OVERVIEW

1 LED Indicators - Red (left), Green (right)

2 LCD Display

3 Softkeys

4 On/Off Key

5 Transducer Connection Point

6 USB Data Output Socket (below cover)

7 Battery Compartment (¼ turn open/close)

8 Wrist Strap Connection

www.elcometer.com 2

2 BOX CONTENTS

Elcometer NDT Precision Material Thickness Gauge

15MHz 1/4" Microdot Right Angle Single Element Transducer

with 9mm & 12mm Acrylic Delay lines (if ordered)

Ultrasonic Couplant; 120ml (4fl oz)

2 x AA Batteries

Protective Case

Transit Case

Wrist Harness

3 x Screen Protector

ElcoMaster Software & USB Cable (PTG8 only)

Calibration Certificate

User Guide

3 USING THE GAUGE

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Model

Power: Batteries -

including battery life indicator

PTG6, 8

Bluetooth On -

Grey: not paired; Orange: paired

PTG6, 8

Limits On (with Limits Index

Number) - Red: limit exceeded

PTG8

Measurement Mode -

I-E: Interface Echo; E-E: Echo/Echo

ThruPaint™; PLAS: Plastic Mode

PTG6, 8

Calibration Method

PTG6, 8

Calibration: Sound-Velocity

PTG6, 8

Batch Type - Sequential

PTG8

Reading Stability Indicator

PTG6, 8

Measurement Units - mm, Inch

PTG6, 8

Menu Softkey

PTG6, 8

Display Softkey

PTG8

Batch Softkey

PTG8

Save Current Reading Value

PTG8

Reading Value -

High resolution; 0.01mm (0.001")

PTG6, 8

User Selectable Statistics -

Maximum of 8

PTG8

Batch Name - when in batching

PTG8

Date & Time -

when enabled and not in batching

PTG8

Power: USB

PTG6, 8

Scan Mode On -

icon ashes during a scan

PTG8

Start / Stop Scan -

when in Scan Mode

PTG8

B-Scan

PTG8

Cell Reference -

when in grid batching

PTG8

Reading Outside Calibration

Warning On

PTG6, 8

Batch Type -

Grid; increment direction: across

PTG8

Reading Value -

Low resolution; 0.1mm (0.01")

PTG6, 8

4.1 FITTING THE BATTERIES

Each gauge is supplied with 2 x AA alkaline

batteries.

To insert or replace the batteries:

1 Lift the latch on the battery compartment

cover and rotate anti-clockwise to remove

the cover.

2 Insert 2 batteries taking care to ensure

correct polarity.

3 Refit the cover and rotate the latch clockwise to close.

The battery condition is indicated by a symbol in the top right of the

display ( ):

4 Full symbol (orange) = batteries at full capacity

4 Empty symbol (red, flashing) = batteries at lowest

sustainable level

4.2 CONNECTING A TRANSDUCER

1 Align the red dot on the

transducer plug with the red dot

on the base of the gauge.

2 Push the transducer into the

gauge, ensuring that the

connector is fully engaged.

All single element delay line

transducers which can be connected

directly to the base of a PTG gauge -

see Section 16.1 ‘Transducers’ on

page 28 - are ‘intelligent’ transducers.

The transducer frequency and diameter will be identified

automatically by the gauge and the user will be prompted to select

the type of delay line attached (if any).

Details of the transducer connected can be viewed at any time via

Menu/About/Transducer Information.

www.elcometer.com 4

4 GETTING STARTED

A transducer adaptor is available which enables other Elcometer

‘non-intelligent’, single element delay line transducers and other

manufacturers’ transducers, to be used with the Elcometer PTG

product range - see Section 16.5 ‘Transducer Adaptor’ on page 31.

4.3 SELECTING YOUR LANGUAGE

1 Press and hold the ON/OFF button until the Elcometer logo is

displayed.

2 Press Menu/Setup/Language and select your language using

the softkeys.

éê

3 Follow the on screen menus.

To access the language menu when in a foreign language:

1 Switch the gauge OFF.

2 Press and hold the left softkey and switch the gauge ON.

3 Select your language using the softkeys.

éê

4.4 SCREEN SETTINGS

A number of screen settings can be defined by the user via

Menu/Setup/Screen Settings including:

Ÿ Screen Brightness; This can be set to ‘Manual’ or ‘Auto’ - the

brightness is adjusted automatically using the gauge’s ambient

light sensor.

Ÿ Screen Timeout; The display will dim if inactive for more than

15 seconds and will go ‘black’ if inactive for the period defined.

Press any key or tap the gauge to awaken it. The gauge can

also be set to switch off automatically after a user defined

period of inactivity via Menu/Setup/Gauge Auto Off. The

default setting is 5 minutes.

4.5 SETTING UP THE READING DISPLAY - PTG8

The colour LCD display is split into two halves; Top Display and

Bottom Display. The user can define what information is displayed

in each half including; Readings, Selected Statistics, Run Chart, Bar

Graph, Readings & Differential and B-Scan.

4 GETTING STARTED (continued)

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a Not available in ‘Scan Mode’ - see Section 9.3 ‘Taking a Reading in Scan Mode’ on page 20.

To setup the display:

1 Press Display/Setup Display/Top Display

(or Bottom Display as required).

2 Use the softkeys to highlight the

éê

required option and press ‘Select’.

If ‘None’ is selected for one half and ‘Readings’,

‘Run Chart’ or ‘B-Scan’ for the other half, the

readings, run chart or B-Scan will fill the whole

screen. If any other combination of options is

selected; the data will be shown in the top or

bottom display as specified.

Ÿ None; No information is displayed.

Ÿ Readings; The reading value is

displayed.

ŸSelected Statistics; Up to 8 statistical

values can be displayed as defined by

the user via Display/Statistics/Select

Statistics. Select from:

Number of Readings, Mean, Lowest

Reading, Highest Reading, Standard

Deviation, Low Limit Value, Number

Below Low Limit, High Limit Value,

Number Above High Limit, Range,

Nominal Value.

Ÿ Run Chart; A line trend graph of the last

20 measurements which is updated

automatically after each reading.

Ÿ Bar Graph; An analogue representation

of the current measurement value

together with the highest (Hi), lowest (Lo)

and average (X) reading. The graph is

updated automatically when each

reading is taken. a

Ÿ Readings & Differential ; The last

reading is displayed together with the

variation from the nominal value set via

Menu/Limit Memories/Create Limit

Memory/Set Nominal.

www.elcometer.com 6

4 GETTING STARTED (continued)

a Not available in ‘Scan Mode’ - see Section 9.3 ‘Taking a Reading in Scan Mode’ on page 20.

Selected Statistics

Run Chart

Bar Graph

Readings & Differential

Readings

Ÿ B-Scan; Provides a time-based, cross-sectional view of the

material being tested. Readings taken, saved readings, the

highest (Hi), lowest (Lo) and average (X) reading together with

upper and / or lower limit values (if set and enabled) are

displayed.

The material thickness is illustrated

by grey and red shaded areas; red if

readings are outside limits (if set and

enabled). Readings which are saved

into the gauge or batch memory are

displayed as white or red vertical

bars; red if readings are outside limits

(if set and enabled).

The B-Scan vertical scale can either be set to 'Auto' or the user

can set the scale most appropriate for the thickness of the

material under test.

When the ‘Start Depth’ and ‘Max Depth’ are both set to 'Auto',

the scaling is determined by the minimum and maximum

readings taken.

To set the B-Scan resolution:

1 Press Display/Setup Display/B-Scan Scaling/B-Scan Start

(or ‘B-Scan Depth’ as required).

2 Use the softkeys to select ‘Auto’ and press ‘Ok’ or

êé

alternatively, use the softkeys to set the required

value, pressing the è softkey to move to the next digit,

and press ‘Set’.

3 Repeat Step 2 for ‘B-Scan Depth’ (or ‘B-Scan Start’ as

required).

4 The default setting is ‘B-Scan Start’ = 0; ‘B-Scan Depth’ = ‘Auto’.

4 GETTING STARTED (continued)

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B-Scan

TABLE 1: MEASUREMENT MODES

Measurement

Mode

Icon

Description

Interface Echo

(IE)

The total thickness from the top of any coating

through to the material density boundary (typically

the back-wall) is measured. Suitable for

measurement of materials between 1.65mm and

25.4mm (0.065" to 1") thick.

Echo-Echo

ThruPaint™

(EE)

A coating of up to 2.0mm (0.08") thick is ignored

and the material thickness from the top surface of

the material to the material density boundary

(typically the back-wall) is measured. Suitable for

measurement of materials between 2.54mm and

25.4mm (0.100" to 1") thick.

Plastic

Mode ( )PLAS

PLAS

Specifically used for measuring very thin plastics

between 0.15mm and 5mm (0.006" to 0.197")

thick. A graphite delay line is required when using

this mode, see Section 16.2 ‘Delay Lines’ on page

29.

b Thickness range is dependent on the material being measured and the transducer used.

Note: The gauge should be re-calibrated when the measurement mode is changed -

see Section 7 ‘Calibrating your Gauge’ on page 13. The calibration icon will

flash intermittently to indicate that re-calibration is required.

To select the measurement mode, press

Menu/Setup/Reading/Measurement Mode.

www.elcometer.com 8

4 GETTING STARTED (continued)

4.7 SELECTING THE MEASUREMENT UNITS

PTG gauges can display readings in mm or inches. To select the

measurement units, press Menu/Setup/Units.

4.6 SELECTING THE MEASUREMENT MODE

Three measurement modes are available for selection; ‘Interface

Echo’, ‘Echo-Echo ThruPaint™’ and ‘Plastic Mode’. See Table 1:

Measurement Modes for further information.

4.8 SELECTING THE MEASUREMENT RATE & RESOLUTION

Three user selectable measurement repetition rates are available;

4, 8 and 16 Hz - the gauge will take 4, 8 or 16 readings per second

depending on the rate selected.

To select the reading rate, press Menu/Setup/Reading/Reading Rate.

When in ‘Scan Mode’ (PTG8 only) - see Section 9.3 ‘Taking a Reading

in Scan Mode’ on page 20 - the reading rate is set at 16 Hz

(16 readings per second).

The gauges have a user selectable reading resolution of 0.1mm

(0.01") - ‘Low’, or 0.01mm (0.001") - ‘High’, which gives more precise

readings when measuring on thinner materials.

To select the resolution, press Menu/Setup/Reading/Resolution and

select ‘Low’ or ‘High’ as required.

4 GETTING STARTED (continued)

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5 SETTING LIMITS - PTG8

Limits are acceptable tolerance levels as defined by the user

allowing the user to compare readings to pre-defined values. The

PTG8 can store up to 40 pre-programmed limits.

Limits can be created on the gauge or via PC using ElcoMaster ,

and saved into the gauge memory for future selection. Using

ElcoMaster , saved limits can be transferred to other PTG8 gauges.

Each Limit can consist of a nominal or target value (x:) - required for

'Readings & Differential' - a low ( ) and / or high ( ) limit value.

Limits can either be created for individual readings or when a new

batch is opened, see Sections 5.1 and 5.2. Different batches can

have different limit values.

When created, limits are stored in the gauge limit memory and are

available for future selection, see Section 5.3.

Saved limits can be renamed and the values can be amended at

any time, see Sections 5.4 and 5.5.

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