DGC DC-2000C Series Manuel utilisateur

Ultrasonic Thickness Gauge

DC-2000C series

Instruction Manual

V. 7.11

CONTENTS

1. General Description......................................................................................1

2. Technical Specifications................................................................................1

3. Standard Delivery.........................................................................................2

4. Overview the Display Unit...........................................................................2

5. Keypad Functions.........................................................................................3

6. Display Screen...............................................................................................5

7. Preparation before measurement................................................................5

【7.1】Preparation of the instrument............................................................5

【7.2】Selection of the Probe.......................................................................6

【7.3】Treatment of the measured surface ...................................................6

8. Basic Operations…………………………………………………...............7

【8.1】Switch on..........................................................................................7

【8.2】Probe Zero ........................................................................................7

【8.3】Backlight...........................................................................................7

【8.4】Parameters setting.............................................................................8

〖8.4.1〗Measurement .............................................................................8

8.4.1.1 Standard measurement...............................................................8

8.4.1.2 Minimum value measurement ...................................................8

8.4.1.3 Difference measurement (DC-2020C).......................................8

8.4.1.4 Average mode (DC-2020C).......................................................8

8.4.1.5 Limitation setting (DC-2020C) .................................................8

8.4.1.6 Scan (DC-2020C)......................................................................9

〖8.4.2〗Velocity Rate..............................................................................9

8.4.2.1 Materials....................................................................................9

8.4.2.2 Velocity Input ............................................................................9

8.4.2.3 Velocity measurement..............................................................10

8.4.2.4 Velocity storage...................................................................10

〖8.4.3〗Resolution................................................................................11

〖8.4.4〗Probe Calibration.....................................................................11

〖8.4.5〗Memory (DC-2020C) ..............................................................12

8.4.5.1 Memory unit............................................................................12

8.4.5.2 Memory Read..........................................................................13

8.4.5.3 Delete Memory........................................................................13

8.4.5.4 Data Transfer ...........................................................................13

〖8.4.6〗Function...................................................................................13

8.4.6.1 Switch off mode ......................................................................14

8.4.6.2 Gain adjustment.......................................................................14

8.4.6.3 Languages................................................................................15

8.4.6.4 Contrast ...................................................................................15

8.4.6.5 Default.....................................................................................15

8.4.6.6 Information..............................................................................15

9. APPENDIX: SOUND VELOCITY MEASUREMENT CHART............16

DC-2000C SERIES ULTRASONIC THICKNESS GAUGE

1. General Description

The DC-2000C / DC-2020C Ultrasonic Thickness Gauge is our new and improved

basic readout unit with automatic probe recognition, automatic zeroing and a larger,

more easily read LCD with backlight. This instrument can measure with very high

resolution (0.01 mm or 0.001 inches) the thickness of metallic and non-metallic

materials such as steel, aluminum, titanium, plastics, ceramics, glass and any other

good ultrasonic wave conductor. The DC-2000C series accurately displays

readings in either inches or millimeters.

2. Technical Specifications

Measurement range

：0.65mm～400.0mm

Resolution

：0.01mm(0.001〞), 0.1mm (0.01〞)

Accuracy

: 0.65mm～9.99mm ±0.04mm

10.00mm～99.99mm ±(0.1%H+0.04) mm

100.0mm～400.0mm ±0.3%H

Zero calibration

：Auto

Velocity range

：1000m/s～9999m/s

Measurement rate

：4 / s and 10 / s in the fast mode

Memory

: 5,200 group (DC-2020C)

Display

：128×64 LCD with backlight

Battery

：2 x AAA Batteries

Operating temp.

：-20℃～+50℃

Measuring temp.

：-20℃～+350℃(according to the probes)

Dimensions

：116mm（L）×64mm（W）×27mm（H）

Weight

：0.22kg (including batteries)

DC-2000C SERIES ULTRASONIC THICKNESS GAUGE

3. Standard Delivery

-- Main Unit 1PC

-- Standard 5MHZ probe D5008 1PC

-- Couplant 75ML

--AAA batteries (Do not apply)

-- Build-in calibration block with 4mm

-- Cable (DC-2020C)

-- Carrying case 1PC

-- Operation manual

-- Certificate

4. Overview the Display Unit

1. LCD Screen 2. Key Pad 3. Battery Pack

4. Probe socket 5. Test block with 4mm

Notice: This test Block is not for calibration, just for checking if the

instrument works correctly.

DC-2000C SERIES ULTRASONIC THICKNESS GAUGE

5. Keypad Functions

On/ Off Key

Press this key to switch on or off the instrument.

Esc. Menu

Press this Key to Escape the Menu.

Menu Key

Press This Key to go to the operation Menu.

Confirm Key

Press this Key to confirm the selection.

UpArrow

Achieve switch among the menu options in the

menu operation

Backlight Key

Press this key to switch on or off the backlight.

(Under the measurement)

DownArrow

Achieve switch among the menu options in the

menu operation.

Calibration

Put the probe in the air, press this key to

complete the calibration.(Under the

measurement)

DC-2000C

DC-2000C SERIES ULTRASONIC THICKNESS GAUGE

On/ Off Key

Press this key to switch on or off the instrument.

Esc. Menu

Press this Key to Escape the Menu.

Menu Key

Press This Key to go to the operation Menu.

Confirm Key

Press this Key to confirm the selection.

UpArrow

Achieve switch among the menu options in the

menu operation

Backlight Key

Press this key to switch on or off the backlight.

(Under the measurement)

DownArrow

Achieve switch among the menu options in the

menu operation.

Calibration

Put the probe in the air, press this key to complete

the calibration.(Under the measurement)

LeftArrow

Achieve switch among the menu options in the

menu operation.

Storage

Press this key to store the every measurement.

(Under the measurement)

RightArrow

Achieve switch among the menu options in the

menu operation.

Read data

Press this key to read the data stored.(Under the

measurement)

DC-2020C

DC-2000C SERIES ULTRASONIC THICKNESS GAUGE

6. Display Screen

7. Preparation before measurement

【7.1】Preparation of the instrument

For the newly purchased instrument, please check the instrument and its

accessories according to the standard delivery table in chapter 3. If user finds it is

not the same as the table listed, please contact the manufacture in time. If the

instrument is damaged, please do not use it and contact the manufacture as soon

as possible.

⑥

②

①

⑤

③

④

⑨

⑦

①Measurement Value

②Battery Life

③Measurement Mode

④Measuring Symbol

⑤Unit

⑥Current Probe model

⑦Current memory location (DC-2020C)

⑧Current Velocity

⑨Current Gain setting

⑧

DC-2000C SERIES ULTRASONIC THICKNESS GAUGE

【7.2】Selection of the Probe

Users can select the suitable probe according to the thickness of the workpiece to

be measured.

Type

Freq.

Meas. Rang

Temp.

Application

D5008

5.0MHz

0.8～300mm

<60℃

The probe is used common in

many measurements, for

example when the measuring

surface is flat or with huge

curvature, or the thickness of

the workpiece to be measured

is large than 50mm.

D7006

7.5MHz

0.65～50mm

<60℃

Used in the measurement of

thin wall thickness and small

curvature surface.

D7004

10.0MHz

0.65～20mm

<60℃

Used in the measurement of

thin wall thickness and small

curvature surface.

D2012

2.0MHz

2.0～400mm

<60℃

Used in the measurement of

coarse particles such as cast

iron.

D5113

5.0MHz

2.0～200mm

<350℃

Used in the measurement

when the temperature is less

than 350℃.And High –

Temp. couplant must be

required to use together.

【7.3】Treatment of the measured surface

When the surface to be measured is too rough or rusty heavily, please perform the

treatment according to the following methods:

1. Clean the measured surface by grinding, polishing or filing, etc. or use coupling

agent with high viscosity for that.

2. Use coupling agents on the work piece surface to be measured.

3. Take multiple measurements around the same testing point.

DC-2000C SERIES ULTRASONIC THICKNESS GAUGE

8. Basic Operations

【8.1】Switch on

Select the probe and insert it into the probe socket and then press to

switch on the instrument, the screen displays: the Series No. and the version

number.

If you did not insert the probe before switching on the instrument, the screen will

prompt you than “Please insert the probe”, at this moment insert the probe into

the socket and waiting to go to the measuring status.

Notice: Please use the standard probe provided, otherwise the instrument will

does not work normally and displaying “Error”.

【8.2】Probe Zero

The gauge does an automatic zeroing of the probe thus eliminating the need for

an on-block zero. Switch on the instrument, then the gauge came into the

measurement mode directly.

If customer feel the measurement value is incorrect during the measurement,

please put the probe in the air, and preess for zero calibration ay any time.

Notice: Please make sure the probe is not coupled to the test piece when the

gauge is first turned on and that there is no couplant on the end of the probe.

The probe should also be at the room temperature, clean without any noticeable

wear.

【8.3】Backlight

Press to turn on / off the backlight. (Under measurent state)

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