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技术文章
涂层说明书英文版
Dear User:
We are indebted for your patronage to purchase this series coating thickness guage. Before using the instrument, please carefully read the manual to use it rightly. Please keep the manual and the warranty well to give you help when you can’t learn it or there is something wrong with it.
Data of the manual is equally had newest product as evidence, because of improvement or other change, description of manual may different from practical situation. Our company will reserve the right corrected at any moment, it is difficult to list the corrected place one by one.
1、Functional use
ANF200 digital coating thickness gauge is a kind of portable coating thickness gauge integrating magnetic property and eddy current. It can rapidly and precisely measure the thickness of coating and plating in a non-detective way. It can not only be used in laboratory, but also can be used in the project site. This gauge can be widely used in detection fields like manufacturing industry, metal-processing industry, and chemical industry. It is an essential gauge for the material protection profession.
Main characteristics |
uIt adopts two kinds of thickness measuring method, namely magnetic property and eddy current. It can not only measure the thickness of non-magnetic cladding on the magnetic metal matrix, but also can measure the thickness of non-conductive cladding on the non- magnetic metal matrix. |
uIt has two kinds of measuring modes: CONTINUE and SINGLE; |
uIt has two kinds of operating modes: DIRECT and App1; |
uThere are five statistics: MEAN, MAX, MIN, NO. and S.DEV; |
uTwo kinds of methods can be adopted to calibrate it, and basic calibration method can be used to correct the systematic error of gaging head; |
uIt has the function of storage: it can store 500 measured values; |
uIt has the function of deletion: it can cancel single suspicious datum appearing in the measurement, and also can cancel all the data inside the storage area for the convenience of carrying out new measurement; |
uIt can set the limit: automatic alarm can be set for the measured values outside the limit; and histogram can be used to analyze a batch of measured values. |
uIt has the function of printing: it can print measured value, statistic, limit and histogram; |
uIt has the function of communicating with personal computer: it can transmit the measured value and statistics to personal computer for the convenience of further processing of data; |
uIt has the function of indicating power supply under-voltage; |
uThere is buzz sound for prompting in the process of operation; |
uIt has the function of error indication: indicate the error though screen display or buzz sound; |
u There are two kind of shutoff modes; manual shutoff mode and auto shutoff mode; |
1.1 Measurement principle
It adopts two kinds of thickness measuring method, namely magnetic property and eddy current. It can measure the thickness of non-magnetic cladding(for example: zinc, aluminum, chrome,copper,rubber, anodic oxide film)on the magnetic metal matrix(for example steel,iron,alloy, hard magnetic steel)
a) magnetic property method(F probe)
When the probe and the cover layer in contact, probe and magnetic properties of metal matrix to form a closed magnetic circuit, due to the existence of non-magnetic coatings, make the magnetic resistance changes, thickness of the coating can be derived by measuring the change
b) eddy current method(N probe)
Use high-frequency alternating current to produce a high magnetic field in the coil, When the probe and the cover layer in contact, on the metal matrix generate eddy current. And produce feeback against the coil in the probe.Then thickness of the coating can be derived by measuring this feedback
1.2 Standard configuration and optional parts
1.2.1 Standard configuration
ITEM | QUANTITY |
Machine | 1 |
Probe | 1 or 2 |
Standard film | 5 |
Matrix | 1 or 2 |
AA type 1.5V(size 5) Alkaline batteries | 2 |
Packing box | 1 |
Using manual | 1 |
Warranty card | 1 |
1.2.2 optional parts
ITEM | QUANTITY |
Printer | 1 |
Communication cable | 1 |
Communication software | 1 |
1.4 Technical parameters
1.4.1 Measurement range and measurement error(attached sheet 1)
1.4.2 Using environment
Temperature:0-40℃
Humidity:20%RH-90%RH
No strong magnetic field environment
1.4.3 Power supply
2pcs AA type 1.5V (size 5) Alkaline batteries
1.4.4 Size and weight
Size: 140mmx63mmx35mm
Weight: about 150kg
2 .The use of the instrument
Before using this instrument, please must read chapter 5(calibration)and chapter4(Factors affecting the measurement accuracy)
2.1 Basic measurement procedures
a) Connect the corresponding methods of measurement probe(the instrument has the function of automatically identify probe)
b) Probe placed in the open space, press key, open the instrument
c) Examine the battery voltage
Remark: If showing low voltage, that means the battery voltage is low, please change battery immediately, when the instrument is opend and showing low voltage, then the instrument will automatically closed after 3-4 seconds.
In normal situation, after open the machine, it is showing the measurement value of last shutoff,for example:
Among:“non-magnetic”------N probe
“direct”-----direct method
“data”-----the latest data of before last shutoff
d) if need to adjust the instrument, if need, select appropriate method to adjust(refer to chapter 4)
e) measurement
quickly make the probe and test surface perpendicular in contact and gently press the probe positioning, along with the beep, the screen displays the measured value, uproot the probe for the next measurement.
f) shutoff the instrument
under the situation of no any operation, about 2-5 minutes the instrument will shutoff automatically, press key, shutoff the instrument immediately.
Remark:
1. During the measurement if the probe is placed unstable, then indicate a suspicious value, can cancel this value.
2. After S.DEVrepeated measurement of three or more times, can indicate 5 values, that is average value(mean)
3. Can not replace the probe when the instrument is open, must replace it when close the instrument, otherwise will make the instrument damaged.
Standard deviation (S.DEV), Test time(NO.),Max value(MAX),Min value(MIN)
2.2 Various functions and operating methods:
2.2.1 measurement method(single measurement ,continuous measurement)
single measurement---each time of the probe contact with the measured product, along with one ringing, then indicate one value.
continuous measurement---not mention the probe dynamic measurement, during measurement is not with ringing, on the screen flashing indicate values.
The conversion of two ways:
a) press “MENU”key, then pressor key, until indicate the “options”
b) press “MENU”key, then pressor key, until indicate the “measurement method”
c) press “MENU”key, then press or key,until indicate the “single measurement or continuous measurement”
d) press”ESC” key to quit
2.2.2 working way(direct way , app1 way)
Direct way: This way is used for random measurement, measurement value is in memory cell temporary, there is total 100pcs memory cells, when the memory cells are full, new measurement value will replace old value, then latest 100 values participate statistical calculations.
App1 way: this way to facilitate the users to record the test data in batches, one group can save 100 values most, total is 5 groups, then can save 500 values, it will indicate ”memory is full” when each group is full of 100 values, now it can continue to measure, but will not save the data, and not participate calculation. If need, to cancel the existent data and measure again.
The conversion of two ways:
a) after open the instrument, will enter the direct way automatically, at working way area indicate “DIRECT”,press “MENU”, then press or ,until indicate “option”
b) press “MENU” key, then pressor key, until indicate the “working way”
c) press “MENU” key, then press or key, select lot number, change to group mode.”
d) after enter group mode, working way indicate “LOT”
e) after enter in to”working way”select “direct way” to enter direct way.
Statistical calculations
This instrument do statistical calculations of measured values automatically, it requires at least three measured values to produce 5 statistics values: average value(MAX), Standard deviation(S.DEV),Test time(NO.),Max value(MAX),Min value(MIN)。
u The measured values that participate statistical calculations
Under the direct way, total measured values(including the values before shutoff) all participate statistical calculations.
Remark: when it save full 100 values, new value will replace old values.
Under app1 way, the measured values that participate statistical calculations are only limited to data in this group.
Remark: when it save full 100 values, although it can continue to measure, but can’t amend statistic data, if need, please cancel memory cell, then go on new measurement.
u Indicate the statistic data
Under direct way:
a) Press ”MENU”, then press or until indicate”statistic value”
b) press“MENU”,enter statistic data indication, then press or , then 5 statistic data will show in followed by.
c) Press ”ESC” to quit
Under app1(in group) way
a) Press ”MENU”, then press or until indicate” statistic value ”
b) press“MENU”,enter statistic data indication, then press or , then 5 statistic data will show in followed by.
c) Press ”ESC” to quit
2.2.3 Probe selection
Under situation of shutoff instrument, when change probe the instrument will select probe measurement mode, this instrument has identify probe function automatically.
2.2.4 storage (save data)
Under group mode(app1), the measurement data will storage into memory cell, one group can storage most 100 values, total is 5 groups, can save 500 values.
2.2.5 cancel
1. Cancel the last measurement data
a) press “MENU”, then press or , until indicate “cancel)”
b) Press “MENU”, enter into cancel selection
c) Press or and select “current data”
d) Press or , indicate cancel confirmation,then press or , the latest measurement data will cancel under direct way or in group(app1) way.
2. cancel all measurement data in current group under direct way or in group(app1)
a) press “MENU” then press or until indicate “cancel”
b) press “MENU” enter into cancel selection
c) press or select”data in current group”
d) press “MENU” and indicate cancel confirmation,then press”MENU” again, the measurement data in current file will be cancel.
3. cancel all measurement data, statistics data and two-point calibration value in current group under direct or in group(app1) way,
a) press ”MENU”, then press or , until indicate “cancel”
b) press “MENU”, enter into cancel selection
c) press or , select “all data”
d) press “MENU”, indicate cancel confirmation,press “MENU” again, all measurement data, statistics data and two-point calibration value will be cancel.
4. cancel the bound in someone group under in group(app1) way
a) press “MENU” then press or until indicate “bound”
b) press “MENU” then press or , select “cancel bound”
c) press “MENU” indicate cancel confirmation),press “MENU” again, then the bound will cancel
2.2.6 set the bound
a) press “MENU” then press or , until indicate “bound”
b) press “MENU” indicate “set the bound”
c) press “MENU”, indicate “set upper limit”, at data area will indicate before upper limit, then use or key to set new upper limit value.
d) press “MENU”, indicate “set lower limit”, at data area will indicate before lower limit, use or set new lower limit value.
Remark:
1. the bound is only effective under in group(app1) way
2. the tested values beyond of bound will beep alarm
3. the tested values beyond of bound and other values will be saved together into calculation
4. the proximity of upper limit and low limit is limited, when the upper limit value is more than 200um, the minimum proximity of upper and low limit is 30% of upper limit, when the upper limit is lower than 200um, the minimum proximity of upper and low limit is 5um.
2.2.7 printing
Printing procedure:
a) connect the printer and the instrument by communication cable
b) press key to open the instrument
c) set the printer to baud rate 9600, 8-bit data, 1-bit start bit, 1-bit stop bit, no parity
d) press “MENU” enter into print function,press or select print content, the content is following:
print measurement value--print all measured values in current working way
print statistic value---print 5 statistic data in current working way
print all value--- under direct way, print measured value, statistic data; under in group(app1) way, print all measured values, statistic values, and bound under this way.
Open the online print, that is print one value after measure one, on the screen it indicates “打印(print)” remind mark
Close the online print, this is the “print” remind mark is disappear, close the online print function.
2.2.8 communication with PC
Before communication with PC, refer to picture 2-2, use the communication cable attached, connect the instrument and serial interface of the PC, and enter into the special operation software on the PC.
Remark 1: the instrument connect with PC, it need to use professional software, the operation method please read the use manual .
Remark 2: after the instrument connect with PC, there will be on the screen, after disconnect with PC, this will disappear.
Remark 3: only special machine has this function.
2.2.9 unit standard transform(metric system – England system)
a) press “MENU” enter into function setting, press or until indicate “option”
b) press “MENU”, then press or until indicate “unit: um or until mil”
c) press “MENU”, can achieve the transform between metric and England system.
d) press “MENU” to quit the transform
2.2.10 backlight setting
a) press “MENU” enter into function setting, press or until indicate “option”
b) press “MENU” then press or until indicate “backlight:open” or “: backlight: close”
c) press “MENU” can achieve the transform between “backlight:open” or “backlight: close”
d) press “MENU”, escape setting
Remark: when open the instrument, press “ESC” can open the backlight.
2.2.11 online statistic values showing:
a) press “MENU” enter into function setting, press or until indicate “option”
b) press “MENU” then press or until indicate “online statistic values”
c) press “MENU” enter into online statistic values setting
d) press or select Average value MEAN, deviation S.DEV, Max value MAX, Min value MIN
e) press “MENU” to escape
2.2.12 operation list
KEY name | Function | Remark |
ZERO | ZERO Calibration | 5.5.1 |
or | Digital adjust, menu to select | 2.2, 5.5.2, 5.4 |
MENU | Enter the menu operation | 2.2 |
ESC | Escape the menu operation | 2.2 |
| Open or close | 2.1 |
2.2.13 about measurement and error
1.If you have the proper calibration, all measured values will keep within a certain error range.
2. according the statistic, only one data is unreliable, so all measured data indicate on screen are average value of 5 values. These 5 values are get in fraction of a second.
In order to make the values more accurate, can make measurement several times on one point, then can cancel the data that has big error, the last coating thickness is: CH=M+S+&, CH is coating thickness, M is average of many times data, S is S.DEV, & is the error that the instrument allow
3. the calibration of instrument
in order to make measurement more accurate, need to make calibration to instrument
3.1 calibration standard object (including foil and matrix)
a) calibration value
Regarding the magnetic method, “foil ” is foil or gasket of non-magnetic metal or non-meta. Regarding the eddy current method, general use plastic foil.
b)the standard object with coating
Use the coating that known thickness, uniform, and solid combination with matrix, regarding the magnetic method, coating is non-magnetic, regarding the eddy-current method, coating is non-conductive
1.2 matrix
a) to magnetic method, standard object matrix metal’s magnetic and surface roughness, should be similar with the magnetic and surface roughness of ready to tested matrix. To eddy-current method, the magnetic of standard object matrix, should be similar with the magnetic of ready to tested matrix. In order to confirm the applicability of standard object, we can compare between matrix metal of standard film and matrix metal ready to test.
b) If the thickness of metal matrix that ready to test is not beyond the critical thickness that required in sheet 1, then can adopt following two method to make calibration:
1) make calibration on the metal standard object that same as the metal matrix that ready to test
2) use one enough thickness, with similar magnetic metal gasket, but must guarantee there is no gap between matrix metal and gasket. But we can’t adopt this method if the test product has coating on both sides.
c) if the tested coating’s bending rate can’t make calibration in the plane, then the test object coating’s bending rate or the matrix metal under calibration foil’s bending rate, should be same as the sample.
3.3 calibration method
This instrument has 3 types calibration method: ZERO calibration, two-point calibration and sandblasting on the surface calibration.
3.3.1 ZERO calibration
A) Do measurement on the matrix once, on screen will indicate X.X.um
B) press ZERO key, on screen indicate 0.0, means calibration is finished, then we can start measurement.
Repeat A.B can get more accurate ZERO and more accurate measurement, after finish ZERO calibration then we can start measurement.
3.3.2 two-point calibration
3.3.2.1 one specimen method
this method fit for high precision measurement and small parts, hardened steel, alloy steel.
a) first ZERO calibration( like above )
b) make one measurement on the standard object that the thickness is about equal to the coating thickness that ready to test, on screen indicate “xxx um”
c) use or key to correct data, make it achieve standard data, then can start measurement.
Pay attention:
1. although displayed data is match with standard object, it is necessary to press or .
2. if want to do two-point calibration, then can repeat b,c, to improve calibration accuracy, reduce accidental error.
3.3.2.2 two specimen method
Two standard object’s thickness at least has three times difference. The thickness of ready testing coating should between two calibration values, this method is fit for rough sandblast surface and high precision measurement.
a) first do ZERO calibration
b) measure on the thinner object, use or . Correct the data to make it achieve standard data
c) followed by b, measure on the thicker object, use or . To correct data to make it achieve standard data, then calibration is finished, we can start measurement.
3.3.2.4 the calibration method on chrome coating on copper surface
Fit for N type probe, and use special standard object.
Must use one specimen method
Use “CHROME ON COPPER” standard film
Remark: If there is large instability, for example operated outside in winter or summer, should do calibration on the standard object that similar with the thickness of foil ready to test. When calibration the environment temperature should consistent with the temperature when used.
Pay attention: 1. if appear following situation, then must do calibration again.
------ when do calibration, appear one wrong value
------- wrong operation
2. under direct method, if enter wrong calibration value, should do one calibration followed by, then we can get new value and cancel wrong value
3. in each unit group only has one calibration value.
4. ZERO calibration and two-point calibration can repeat many times, do that can get more accurate calibration value, improve measured accuracy.
3.3.3 amend the calibration value in group
We only can do new calibration after cancel all values and calibration values , or will appear “error 20” wrong code and ringing alarm.
3.3 the adjustment of basic calibration
Under following situation, it is necessary to adjust basic calibration:
------- probe top is worn
------- special use
When measure, if error is exceed the given range clearly, then we should do calibration again to the probe, that is basic calibration. Through enter 26 calibration values, can do calibration again to the probe
A) press and then press when the instrumen
t is shutoff, will enter into F probe basic calibration. press and then press when the instrument is shutoff, wait for several seconds, on screen will indicate “basic calibration”, then enter into N type probe basic calibration; release keys, on screen will indicate current displacement data, in the lower right corner will indicate “0”, that is 0um,
B) Wait the data is stable, press “MENU” can save data, now the data in the lower right corner will increase 50um automatically, adjust displacement between probe and matrix until to thickness value on screen, and press “MENU” again, save the values, followed values will be and so on(if the saved values is not accurate, can use or to adjust calibration points, save values again )
C) after enter into 26 values, when it indicates “0” in the lower right corner of screen, can press to shutoff the instrument, new calibration values will be saved. When open the instrument again, will working according to new calibration value, if not satisfied with current calibration, can do new calibration.
D) after enter into 6 calibration values, measure ZREO point, the instrument will closed automatically, new calibration value saved already, when open again, will do new calibration .
4. factors that affected measurement accuracy
4.1 Factors sheet 4-1
Measurement method Factors | Magnetic method | Eddy current method |
Matrix metal magnetic |
|
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Matrix metal electronic |
|
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Matrix metal thickness |
|
|
Edge effects |
|
|
Bending rate |
|
|
The test sample’s deformation |
|
|
Surface roughness |
|
|
Magnetic field |
|
|
Attached material |
|
|
Probe pressure |
|
|
Probe orientation |
|
|
--------means having influence
4.2 Related explaination of affected factors:
a) Matrix metal magnetic
Under magnetic method, it is influenced by metal magnetic change, in order to avoid the influence of heat treatment and cold process, should use the standard object that has same magnetic as tested sample.
b) Matrix metal electronic
the conductivity of matrix meta has influence on measurement, and this conductivity is related with its material and heat treatment method, should use standard object that has same electronic as tested sample.
c) Matrix metal thickness
each instrument has a critical thickness of matrix metal, if more than this thickness, the measurement will not influenced by matrix metal’s thickness, the critical thickness of this instrument please refer to SHEET 1
d)Edge effects
this instrument is sensitive with test object’s sudden change of surface shape, so it is unreliable when it near the edge or inner corner.
e) bending rate
the bending rate’s influence is always increased along with the reduce of bending rate, so if measure the bending object, it is unreliable.
f) the deformation of tested product
the probe can make soft coating deformed, so it is unreliable if measure on these products.
g)surface roughness
if the surface roughness is increased, then the influence is increased. The rough surface can cause system error and accidental error, each measurement, we should increase measured times in different position. If the matrix metal is rough, then must proof zero point on the metal object that with similar roughness metal that no coating. or get rid of the coating by solution without corrosive.
h) Magnetic field
the magnetic field that produced by electronic equipment all around, can seriously influenced working under magnetic method
i) attached material
this instrument is sensitive with the attached material on the matrix metal, so must clean the material, to assure that the probe can contact with tested object directly.
j) probe pressure
the probe pressure can affected the measurement value, so we must keep the probe vertical.
k) Probe orientation
during measurement, should make probe and measured product vertical.
4.3 the rules we should obey when use the instrument.
a) matrix metal feature
under magnetic method, the standard object’s matrix metal’s magnetic and surface roughness, should similar with that of tested object
b)matrix metal thickness
to examine if the matrix metal’s thickness is exceed the critical thickness, if not, can adopt (3.3)method to do calibration.
c) edge effects
we should not measure at the edge, hole, or inner corner of the tested product
d)bending rate
we should not measure at the bending position
e)reading data times
generally because each reading data is not same completely, so must take several data at each measurement area. And because the coating thickness’s partial difference, it is request do several measurement at one area.
f)surface cleanliness
before measurement, should clean any attached material on surface, such as dust, grease and corrosion products, but don’t clean any coating products.
5.maintenance and repair
5.1 environment request
Strictly avoid collision, heavy dust, damp, strong magnetic field, grease and so on.
5.2 change battery
When the instrument showing low voltage, should change battery immediately, the method is following:
A) press to close the instrument
B) open the battery box
C) take out the battery, put into new battery
D) cover the battery box cap
If the instrument not use for long time, please take out the battery to avoid corrosion because of the battery leakage.
5.3 Troubleshooting
Below sheet tell you how to identify and clean the trouble
Sheet 5-1
Error code | The meaning of error code | Reason and solve method |
Error 2 Error 2N Error 2f | Probe or instrument is damaged N probe or instrument is damaged F probe or instrument is damaged | Repair probe or instrument |
Error 3 Error 3N Error 3F | Probe or instrument is damaged N probe or instrument is damaged F probe or instrument is damaged | Repair probe or instrument |
Error 4 Error 4N Error 4F | The measured value occur large fluctuation(for example measure on soft coating); magnetic effects | Should adopt assistive devices when measure on soft coating; away from strong magnetic field |
Error 5N
Error 5F | When open the instrument, the probe away from the metal matrix is too close When open the instrument, the probe away from the magnetic metal matrix is too close | Close the instrument, when probe is away from matrix open again |
Error 11 | Probe model and original data corresponding to the probe model does not match | Select suitable probe and select one group unit cell, do calibration after cancel |
Error 15 | ZERO value deviation is too big, zero value can’t saved | Select suitable matrix or repaired instrument |
Error 20 | There is already calibration value in this group | Select another group cell that not used or do calibration after cancel |
If not showing error code but the instrument is not working normally, for example:
a) the instrument can’t close automatically
b) can’t measure
c) the keys are not working
d) measurement values are capricious.
When occur above error, please take out the battery to make the instrument close, after several minutes put into the battery again.
If the users also can’t clean the trouble through above method, please don’t split the instrument and repair by yourself, please write on the maintain card, give the instrument to repaired department, execute maintain rule.
Attached sheet:
Sheet 1: spec parameters
Type of Gaging Head | F | N | |
Operation Principle | Magnetic Induction | Eddy Current | |
Measuring Range(Hm) | 0~1250 | 0~1250 | |
Lower Limit Resolution | 0.1 | 0.1 | |
Indicated Value | One-point Calibration(Hm) | ±(3%H+1) | ±(3%H+1.5) |
Two-point Calibration(Hm) | ±[(1~3%)H+1] | ±[(1~3%)H+1.5] | |
Test Strip | Minimum Curvature Radius(Hm) | convex 1.5 | convex 3 |
Diameter of Minimum Nominal Value(mm) | Φ7 | Φ5 | |
Critical Thickness of Matrix(mm) | 0.5 | 0.3 |
Sheet 2: Reference Table for the Selection of Probe |
Cladding of Matrix | Non-magnetic cladding like organic materials (such as paint, coating plastic, porcelain enamel and anodic treatment) | Non-magnetic nonferrous metal cladding, such as chromium, zinc, aluminum, copper, tin and silver |
Such as iron, steel and other magnetic metals | F-type Probe | F-type Probe |
Such as copper, aluminum, brass, zinc, tin and other nonferrous metals | N-type Probe | N-type probe is only used for chrome plating on copper |
原创作者:深圳市恩慈电子有限公司