Accud CF1250 Operating instructions

Brand: Accud

Model: CF1250

Category: Measuring, testing & control

Type: Operating instructions

Accud CF1250 is a coating thickness gauge designed for non-destructive, quick, and precise coating thickness measurement on ferrous and steel bases, including alloyed and hardened magnetic steel. It utilizes the magnetic induction principle and adheres to industrial norms and standards like GB/T 4956, JB/T 8393, ISO 2178, and ASTM B499. With a built-in sensor, the gauge offers a measuring range of 0~1250mm (0~50mil) and a resolution of 1μm. Its accuracy is within ±2.5μm for measurements up to 100μm and ≤2.5% for measurements from 100~1500μm.

Contents

1 Introduction

2 Description

2.1 Gauge

2.2 Display

2.3 Specifications

3 Operation

3.1 Power on/off

3.2 Measuring Procedure

4 Setup

4.1 Measurement Settings

4.2 System Settings

5 Calibration and Maintenance

5.1 Calibration

5.2 Maintenance 14

1 Introduction

Designed for non-destructive coating thickness

measurement, the models of the coating thickness gauge

is with built-in sensor. It works on the magnetic induction

principle and conforms to the following industrial norms

and standards: GB/T 4956, JB/T 8393, ISO 2178, ASTM

B499

The Coating Thickness Gauge is suitable for

non-destructive, quick and precise coating thickness

measurement. Easy to handle they are the ideal

instrument for the finishing industry, electroplating, ship

and bridge building, aircraft construction and the

engineering and chemical industry.

The Coating Thickness Gauge works on the

magnetic-induction principle for measuring the thickness

of non-magnetic coatings(such as paint, enamel, rubber,

aluminum, chrome, cupper, tin etc.) on magnetic metal

substrates(ferrous bases and steel, also on alloyed steel or

on hardened magnetic steel, but not on austenitic steel or

weak magnetic steel).

2 Description

2.1 Gauge

2.2 Display (Fig.2-3)

Probe

LCD

Keypad

Fig. 2-1

Fig. 2-2

Down

Power

/ Zero

Fig. 2-3

Bat

tery

Measured

Point

Mean

Value

Measured

Value

Mode

Single

Continue

2.3 Specifications

Test Method: Magnetic induction

Measuring Range: 0~1250mm (0 ~50mil)

Resolution: 0 ~ 999μm: 0.1μm, ≥1000μm:

1μm

Accuracy: up to 100μm: ±2.5μm; 100 ~

1500 μm: ≤ 2.5 %

Data Memory: up to 500 readings.

Display: Graphic LCD with backlight

Operating temperature : 0 ~ 50°C

Dimension: 150X50.5X29 mm

Weight: 170 grs

3 Operation

3.1 Power on/off

Push until the power is turned on.

NOTE: If there are magnetic metals near the probe at the moment

of swatch on, the gauge will display a alarm “Surround

Error!".Should take gauge far from magnetic metals and wait few

seconds it can go normal.

When the gauge is switched on, press a while to turn

the power off.

NOTE: This gauge can power off automatically, if no any operation

for 3 minutes. Before turning off, it will sound for a few beep

prompt. If you do not want to power off, simply press any key can

abort.

3.2 Measuring Procedure

3.2.1 Parameters selection

First, confirm measuring parameters should suitable for

your requirements.

a) Measurement Mode.

There are two modes: Single Mode and Continuous

Mode . It's displayed in the upper left corner of the LCD

display.

It is usually to choose Single Mode, that is, when a

measurement is completed, you should lift the probe and

then the next point measurements. In this mode, the

measurement data can be stored automatically and

calculate mean value.

Select "Continuous Mode", you can slide the probe on

measuring surface for measurement continuously.

However, this mode will not perform the data storage and

statistical processing.

b) Measurement Units

The instrument has two kinds of units available for

selection: μm (microns) and mils (micro inch).

3.2.2 Accuracy verification

a) Using a calibration substrate and Standard thickness foil

to verificate the instrument. Generally if the

measurement

error is not out of the accuracy of specifications it can be

used normally.

Methods:

Select a Single Mode and μm, press the probe on the

surface of the substrate, push

r zeroing. Place a foil

. 3-1

on the substrate to measure. Comparing the measured

value and the standard value of the foil to obtain the

measurement error.

b) If the error is large, the calibration is need for, (see 5.1

Calibration).

3.2.3 Test piece ready

a) Test-piece should be ferromagnetic base material is

coated with a non-magnetic coating;

b) The measuring surface should be regular, smooth;

c) The thickness of the test piece is not less than 2mm;

d) The measuring surface should be clean and free of

grease.

3.2.4 Measurement

Press the probe perpendicular to

the surface of the test piece (Fig.

3-1).

When the thickness values is

obtained, a sound is uttered.

In Single Mode, then you can lift

the instrument to read, or do the

next measurement.

In Continuous Mode, then you

can move the probe to the next

measurement position.

NOT

In Single Mode, you need to lift the

Mean

Value

Measured

Points

Measuring

value

instrument away from the test surface 10cm or more, and the

time interval between two measurements should be no less than

1 second.

Use Continuous Mode often, may cause the probe wear

and galling test surface is easy. We therefore recommend

to use Single Mode for normal measurements, if not

necessary.

3.2.5 Data read and browse

a) Read measuring value

Read the measured value from the LCD. (Fig. 3-2)

OTE:

The maximum points for the statistical set is 9. It will start the

next statistics set automatically if more than 9 points. Enter the

menu or push

ll renew statistical set and average.

Data Browse

In Single Mode, each measuring value is stored

automatically

In the

measuremen

t mode, you

can press

g.3-3

Thi

ckness

No.

Fig.3-2

Fig

. 4-1

browse them. (Fig. 3-3)

Press for page up and down.

Press to exit the browser and return to measurement

mode.

NOTE: The gauge can store up to 500 of measurement value. The

greatest number is the most recent measurement.

After the data store reaches 500, the following data will be stored

and pile out the first data automatically. Therefore, record the

useful data as soon as possible for not to lose.

3.2.6 Passing measurement

a) In the Single Mode, you can also be set upper and lower

limits for passing judgment and screening tests.

b) When the measured value exceeds the tolerance, it will

sound indication.

c) To set upper and lower limits, see 4.1.2 Upper and

Lower Limits.

4 Setup

The

gauge uses a menu for

setting the parameters or

the functions.

The structure of setup

menu is shown in Fig 4-1.

In the measurement mode,

press the "Menu"

nter the setup menu.

Press the "Up"



COATING THICKNESS GAUGE

CF1250

OPERATION MANUAL

www.accud.com

Fig. 4-2

"Down" ("Up" or "Down" the same below)

can select a item, press "OK"

to enter the selected

item.

In the menu settings, press to exit or return to the

previous menu. You can also press

longer to exit

setup and return to the measurement mode.

4.1 Measurement Settings

Select Measure to enter the

measurement parameter

settings.

Measurement parameters

include: measurement mode

(Mode), upper and lower limit

settings (Tolerance) and

calibration (Calibration).

4.1.1 Measuring mode

a) Press to select Mode, press ;

b) Press

to select Single (Single Mode) or Continue

(Continuous Mode);

c) Press

to save and return to the measurement

mode;

d) Press to return to the measurement mode and not

save. (Fig. 4-2)

Fig.

4-3

4.1.2 Upper and lower limit settings

If the limits are set up and turn on, when the meas

uring

value exceeds the limit, the

instrument will audible alarm.

(Fig. 4-3)

a) Press

to select

Tolerance (upper and lower

limit settings), press

enter;

b) Press

set to "On" or

"Off";

c) Press

to select Upper

limit or Lower limit, press

to enter to input the upper

and lower limits;

d) Press

to increase or

decrease the setting, press

to move to the next digit;

Note: The upper limit must be greater than the lower

limit, otherwise the setting is invalid.

4.1.3 Calibration

(Detailed calibration procedure See 5.1)

4.2 System Settings

Select System, can enter the system settings.

System setting parameters include: unit (Unit), backlight

Fig. 4-4

Fig. 4-5

and key tone (Sound).

4.2.1 Unit

a) Press select Unit,

press

;

b) Press

to select "μm" or

"mils";

c) Press

to save the settings

and return to measurement

mode;(Fig. 4-4)

4.2.2 Backlight

Set backlight to "Off" will be no backlight, set to

"On", the

backlight will be opened

constantly.

NOTE: Setting the backlight to "On" is

not recommended for saving battery

power. (Fig. 4-5)

a) Press to select Backlight,

press

;

b) Press

to select "Off" or

"On";

c) Press

to save the settings

and return to measurement

mode;

Fig. 4-6

4.2.3 Key Tone

(Fig. 4-6)

a) Press

to select Sound

(touch-tone), press

;

b) Press

to select "On"

(Turn on key tones) or "Off"

(turn off the key tone);

c) Press

to save the

settings and return to

measurement mode.

5 Calibration and Maintenance

5.1 Calibration

For ensuring measurement accuracy, you may need

calibrate to correct the error caused by wear and tear or

changes in environment etc..

Press to enter the menu and select Measure, press

to select Calibration, you can enter the instrument

calibration interface.

Three calibration methods are provided: Zero calibration

(Zero), One-point calibration (1st) and Two-point

calibration (2nd).

NOTE: Before One-point calibration zero calibration must be

carried out. Before the Two-point calibration, the

Zero-calibration and One-point calibration must be carried out.

Fig 5-1

5.1.1 Zero Calibration

Zero calibration may be in two ways: Zeroing and Menu

zero calibration.

1) Zeroing

a) In single mode, measure on the substrate directl

display the results "xx μm";

b) Press

to clear display as "0.0 μm".

NOTE:

i) If "xx μm" is greater than 80μm, you cannot zer

o it directly,

Menu zero calibration is needed.

ii) Repeating the above a), b) as a few times may i

ncrease the

accuracy of the calibration.

2) Menu Zero Calibration

(Fig.

5-1)

a) Enter Menu and select

Calibration, then select Zero (zero

calibration), press

, wait for

showing Acting;

b) Measure on the substrate

directly, measuring 3 to 5 times or

more can ensure accuracy;

c) Press

to save the

calibration values and remain in the calibration in

terface.

Then press

can finish the Zero calibration and return;

d) If press

only, will be not save the calibration and

return

Fig. 5-2

5.1.2 One-point calibration

Before One-point calibration

perform, must first do

Zero-calibration.(Fig. 5-2)

a) Press to select the 1st

(One-point calibration), "0000.0"

will be shown;

b) Press to enter the standard

value of foil;

c) Press

to adjust the value,

press

to move to the next

digit, Input the standard thickness

value of the foil, (press

return to the initial setting value).

Then, press

and waiting for

showing Acting;

d) Measuring on the standard thickness foil for 3 to 5

times;

e) Press

to save the calibration values and remain in

the calibration interface, you can proceed to the next one

calibration;

f) Or press to not save the calibration and return.

5.1.3 Two-point calibration

Before Two-point calibration, first the Zero-point

calibration and the Two-point calibration must be d

one.

And thickness of the standard foil must be greater

than in

Fig 5-3

the One-point calibration.(Figure 5-3)

a) Press to select the 2nd (Two-point calibration),

"0000.0" will be shown;

b) Press to enter the standard value of foil;

c) Press

to adjust the value, press to move to

the next digit, Input the standard thickness value of the

foil, (press

to return to the initial setting value). Then,

press and waiting for showing Acting;

d) Measuring on the standard

thickness foil for 3 to 5 times;

e) Press to save the

calibration values and remain in

the calibration interface, you can

proceed to the next one

calibration;

f) Or press

to not save the

calibration and return.

5.2 Maintenance

1) Avoid dirt, dust, humidity,

corrosive substances of chemical

environments. Prevent the

instrument has been dropped!

2) After use, place the instrument back into the pr

otective

device.

3) Avoid strong sunlight and temperature fluctuations,

which would adversely affect the measurement results.

4) The instrument enclosure resistant to most chemi

cal

cleaners, use a soft cloth to clean the instrument.

5) Only keep it clean probe to measure the accurate

results,

so the probe regularly inspect and clean them paint

, iron

and other residues.

6) Standard thickness foil is very important in the

calibration.

So if the standard pieces appear worn, bent or dama

ged,

contact your dealer to replace.

7) If the gauge is not working, please do not disassemble it.

Should send it to the professionals or back to the factory for

repair.

Accud CF1250 Operating instructions

Brand: Accud

Model: CF1250

Category: Measuring, testing & control

Type: Operating instructions

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Accud CF1250 Operating instructions

Accud CF1250 Operating instructions

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