Elcometer CG60DL Manual de usuario

Model CG60

Model CG60DL

Corrosion Gauge

Operating Instructions

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This 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.

is a registered trademark of Elcometer Limited.

All other trademarks acknowledged.

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.

A copy of this Instruction Manual is available for download on our Website via www.elcometer.com.

Doc.No. TMA-0498 Issue 01

Text with Cover No: 23225

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Contents

1 About your gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2 The keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4 The display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

5 Measurement modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6 Setting up the gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

7 Measurement - Taking readings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

8 Measurement options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

9 Measurement - Recording your readings (CG60DL only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

10 Transferring readings to a computer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

11 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

12 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

13 Technical specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

14 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

15 Spares. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

16 Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

17 Condition and preparation of surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

18 Application notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

19 Sound velocities of common materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

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hank you for purchasing this Model CG60/Model CG60DL Corrosion Gauge. Welcome to Elcometer NDT.

The Elcometer CG60 and CG60DL Corrosion Gauges are world beating products. With the purchase of this

gauge you now have access to the worldwide service and support network of Elcometer NDT . For more

information visit our website at www.elcometerndt.com.

1 ABOUT YOUR GAUGE

The Model CG60 and CG60DL Corrosion Gauges are handheld gauges for fast and accurate measurement of

material thickness.

The Model CG60 and CG60DL are both capable of measuring the thickness of various materials with accuracy as

high as ± 0.1 mm (± 0.004"). The principal advantage of ultrasonic measurement over traditional methods is that

ultrasonic measurements can be performed with access to only one side of the material being measured.

The multi-mode feature of the Model CG60 and CG60DL allows the user to toggle between pulse-echo mode

(standard measurements) and echo-echo mode (eliminate paint or coating thickness).

The Model CG60DL model includes all the features of the Model CG60 model plus a data-logging (memory) facility

which allows readings to be stored in batches before being downloaded to a computer.

This manual describes the operation of the Model CG60 and the Model CG60DL.

1.1 STANDARDS

The Model CG60 and CG60DL Corrosion Gauges can be used in accordance with the following Standards and

test methods ASTM E 797, EN 14127 & EN 15317.

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1.2 WHAT THIS BOX CONTAINS

Model CG60 Gauge or Model CG60DL Gauge, Bottle of couplant, Battery, 2 x, Carrying case, Test

certificate, Operating instructions, CD with data transfer and data collection software - CG60DL only, RS232

cable and USB to Serial converter CG60DL only

Note: The box does not include a transducer; these must be ordered separately. To order a transducer,

contact Elcometer or your local Elcometer NDT supplier.

Figure 1. Model CG60 and CG60DL Corrosion Gauges

Elcometer 208 DL

Ultrasonic Thickness Gauge

CLR

MEM

SEND

MODE

CAL

PRB

Data Logger

OFF

CAL

PRB

SEND

LRM

DUAL

MULTI

SCAN

Elcometer 208

Ultrasonic Thickness Gauge

SEND

ALRM

PRB

OFF

SCAN

DUAL

MULTI

CLR

MEM

SEND

MODE

CAL

PRB

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2 THE KEYPAD

2.0.1 Model CG60 keypad

The ON/OFF key switches the gauge on or off.

To switch the gauge on, press the ON/OFF key. The gauge will perform a brief test by illuminating all of the

segments in the display. After one second, the display will show the internal software version number and

then the measurement mode ‘P-E’ or ‘E-E’. The display then shows ‘0.00’ (or ‘0.000’ if using imperial units),

indicating the gauge is ready to take readings.

To switch the gauge off press the ON/OFF key. The gauge retains all of its settings even when the power is

off. The gauge also features an ‘auto-power down’ function designed to conserve battery life. If the gauge is

idle for 5 minutes, it will switch itself off.

The PRB-0 key sets the gauge to zero in much the same way that a mechanical micrometer is set to zero.

If the gauge is not set to zero correctly, all of the measurements that the gauge makes may be in error by

some fixed value.

See “Setting up the gauge” on page 15.

When the Model CG60 is taking readings, press the CAL key to adjust calibration.

Calibration adjustment sets the sound-velocity value that the gauge uses when calculating thickness. The

gauge will either calculate the sound-velocity from a sample of the material being measured, or allow a known

velocity value to be entered directly. See “Calibration” on page 17.

The IN/MM key toggles between metric (mm) and imperial (inches) units.

This key may be used at any time, whether the gauge is displaying a thickness (MM or IN) or a velocity value

(M/s or IN/µs)

PRB

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The UP arrow/SCAN key has two functions.

When the Model CG60 is in CAL or ALARM mode, press this key to increase numeric values on the display.

An auto-repeat function is built in, so that when the key is held down, numeric values increment at an

increasing rate.

When the Model CG60 is taking readings, this key switches SCAN measurement on and off.

See “Measurement options” on page 23.

The DOWN arrow/Backlight key has two functions.

When the Model CG60 is in the CAL or ALARM mode, press this key to decrease numeric values on the

display. An auto-repeat function is built in, so that when the key is held down, numeric values decrease at an

increasing rate.

When the Model CG60 is taking readings, the DOWN arrow key switches the display backlight between three

settings; on, off and auto.

See “Backlight” on page 27.

The ALRM key has two functions.

Hold down the ALRM key when switching on the Model CG60 to switch the audible beeper on or off.

When the Model CG60 is taking readings, press the ALRM key to toggle the alarm on or off, and to allow the

nominal thickness value to be adjusted.

See “Alarm” on page 24.

The DUAL/MULTI key toggles between pulse-echo measurement mode and echo-echo measurement mode.

This enables the user to switch very conveniently between measurement modes depending on application

requirements.

See “Measurement options” on page 23.

The SEND key sends the currently displayed thickness measurement to an external storage device via the

RS232 port.

See “Transferring readings to a computer” on page 31.

DUAL

MULTI

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2.0.2 Model CG60DL keypad

The ON/OFF key switches the gauge on or off.

To switch the gauge on press the ON/OFF key. The gauge will perform a brief test by illuminating all of the

segments in the display. After one second, the display will show the internal software version number, the

current batch location and location status, and then the measurement mode ‘P-E’ or ‘E-E’. The display then

shows ‘0.00’ (or ‘0.000’ if using imperial units), indicating the gauge is ready to take readings.

To switch the gauge off press the ON/OFF key. The gauge retains all of its settings even when the power is

off. The gauge also features an ‘auto-power down’ function designed to conserve battery life. If the gauge is

idle for 5 minutes, it will switch itself off.

The PRB-0 key sets the gauge to zero in much the same way that a mechanical micrometer is set to zero.

If the gauge is not set to zero correctly, all of the measurements that the gauge makes may be in error by

some fixed value.

See “Setting up the gauge” on page 15.

When the Model CG60DL is taking readings, press the CAL key to adjust calibration.

Calibration adjustment sets the sound-velocity value that the gauge uses when calculating thickness. The

gauge will either calculate the sound-velocity from a sample of the material being measured, or allow a known

velocity value to be entered directly.

See “Calibration” on page 17.

When the Model CG60DL is taking readings, press the MODE key to adjust the features and settings of the

gauge (alarm, scan, units, P-E/E-E, backlight, and beeper). The MODE key is used in conjunction with the

arrow and SEND keys to enable/disable the features and settings.

PRB

MODE

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The UP arrow key has three functions.

When the gauge is in CAL or ALARM mode, press this key to increase numeric values on the display. An

auto-repeat function is built in, so that when the key is held down, numeric values increment at an increasing

rate. When MODE key has been pressed, the UP arrow key scrolls through the various features and settings

of the gauge.

When the data-logging feature has been activated by pressing the MEM key, pressing the UP arrow key

scrolls through the various files, memory locations, and functions of the data logger.

The DOWN arrow key has three functions.

When the gauge is in the CAL or ALARM mode, press this key to decrease numeric values on the display. An

auto-repeat function is built in, so that when the key is held down, numeric values decrease at an increasing

rate. When MODE key has been pressed, the DOWN arrow key scrolls through the various features and

settings of the gauge.

When the data-logging feature has been activated by pressing the MEM key, pressing the DOWN arrow key

scrolls through the various files, memory locations, and functions of the data logger.

The MEM key enables/disables the data logging feature of the Model CG60DL. This key is used in

conjunction with the UP/DOWN arrows, SEND, and CLR keys. These keys, in combination, control the data

logging features of the Model CG60DL.

See “Measurement options” on page 23.

The CLR key is used with the data-logging feature of the Model CG60DL. This key clears the contents of an

entire batch, or individual memory locations. The CLR key is also used to send an obstruct message (ObSt) to

an individual memory location. The ObSt symbol would indicate that the user was unable to take a reading at

a particular location. See “Measurement options” on page 23.

The SEND key is used for sending data to internal memory locations, and external peripheral devices (serial

printer or computer). The SEND key is also used to select data logging functions in the Model CG60DL.

MEM

CLR

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3 GETTING STARTED

3.1 FITTING BATTERIES

The Model CG60/CG60DL may be used with dry cell batteries or rechargeable batteries.

2 x LR6 (AA) alkaline batteries are supplied in the kit.

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. Locate battery compartment cover (Figure 2) at top of gauge.

2. Unscrew battery compartment cover.

3. Referring to battery polarity instructions on rear of gauge, insert

batteries into gauge ensuring correct polarity.

4. 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.

Elcometer 208 DL

Ultrasonic Thickness Gauge

CLR

MEM

SEND

MODE

CAL

PRB

Data Logger

OFF

CAL

PRB

SEND

LRM

DUAL

MULTI

SCAN

Battery

compartment

cover

Figure 2. Fitting batteries

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