Smart Sensor AS930 User manual

Model: AS930
Film/Coating Thickness Gauge
User's Manual
Version number：SZ930-0-12
SENSOR
SMART
R
DEL
ZERO
/ON

Thank you for purchasing our company's product.
This manual provides relative information on how
to use this product and measurement functions of
it as well as warnings on its use. To make the best
use of this product's functions, read this manual
thoroughly before use. Please keep this manual
handy for ease of reference.
Please be sure to do some test measurement to
make sure it is performing properly before using it
for real.
Preface
Specific Declarations:
a. The product design and the manual updating, repairi-
ng by technician authorized by us, do not try any alte-
rnations or repair attempts.
b. Dispose of battery should in accordance with local
laws and regulations.
Warranty
1). About relative warranties please read provided
warranty card.
2). We disclaim any liability due to: transportation
damages; incorrect use or operation; manipu-
lation, alterations or repair attempts; without
warranty card, invoice.
-28-
Other Items

-27-
1. Before use notice
2.Operation instructions
3. Other items
Contents
Check-up---------------------------------------------(01)
Introduction------------------------------------------(02)
Features and functions ----------------------------(02)
Specifications --------------------------------------(03)
Main parts explanations -------------------------- (04)
Displays functions -------------------------------- (06)
Attentions --------------------------------------------(22)
Maintenance and warranty -----------------------(27)
Special declaration---------------------------------(28)
Know the Standard piece and Base material---(07)
Battery Installation ---------------------------------(08)
Instruments calibration ----------------------------(10)
Unit change------------------------------------------(15)
Continually measurement-------------------------(16)
Instruments tolerance measurement------------(17)
Coating tolerance measurement-----------------(18)
Memory data record, check and delete ---------(19)
Data analysis----------------------------------------(20)
Maintenance and warranty
Maintenance:
1). Replacement and maintenance of battery:
a. After power on, if a symbol appears on the LCD,
you need to replace the battery immediately, for details
please refer figures and contents on page 9 of this
manual.
b. Remove the battery from the unit if it is not required for
extended periods of time in order to avoid damage to
the battery compartment and the electrode resulting
from a leaking battery.
2. Do not store or use the unit in following locations whe-
re the unit may be subject to:
a. Splashes of water or high levels of dust.
b. Air with high salt or sulphur content.
c. Air with other gases or chemical materials.
d. High temperature or humidity (above50℃, 90%,) or
direct sunlight.
3. Do not disassemble the unit or attempt internal
alterations.
4. Never use alcohol or thinner to clean the unit casing
that will especially erode the LCD surface; just clean
the unit lightly as needed with little clean water.

-26--01-
1PCS
1PCS
1PCS
1PCS
1PCS
6PCS
1PCS
1PCS
1PCS
Check-up
1. Before use notice
Carefully unpack your kit after you purchased this
product and ensure that you have the following items. In
the event that any item is missing or if you find any mis-
match or damage or the manual appearing to lack page,
etc. seriously influencing the reading, promptly contact
your dealer.
Other Items
Digital coating thickness tester
9- Volt alkaline battery
Chinese Instruction Manual
English Instruction Manual
Maintenance Card
Standard sheet gauge
Iron base material for calibration
Transparent leather pack
Aluminum Packing Box
c. According to the international standard, the final
measure result can expressed as the following
formula:
CH=A+/-2D
CH---the thickness of the coating
A----the average value of the measure data (AVG)
D-----standard warp (dFR)

-02--25-
Introduction
Features and functions
Need To Know
Before Use
This product using magnetic induction thickness mea-
surement method, the thickness equipment specially
designed to perform small, fast, accurate and non-destr-
uctive thickness measurement of coating and plating on
steel magnetic conductor. it is widely used on manufact-
uring, workshop, chemistry or quality measuring range.
Easy- to- read LCD direct display measurement value
and status.
Using Hi- sensibility sensor for precise measure.
0 point, 2 point and basic, three different calibration
modes for quick and easy to process the system toler-
ance calibration.
Single, continually and difference, three different
measure mode.
Result data can record, check and delete into the unit
memory.
The Instruments can do some simple data analysis,
like maximum, minimum, mean, standard deviation,
and measure times.
Buzzer notice function.
Unit can convert between the metric system and British
system.
Low Battery notice function.
Auto power off function.
LCD backlight function.
Simple, compact structure and portable.
d. curvature:
You should not measured at the distorted surface.
e. the reading number:
Because the data you read will not same all the time,
so you should read several value at one measurem-
ent. The part difference of the coating also request
measure several time especially when the surface is
rough.
f. cleanness of surface:
You should clear all the attachment before the mea-
surement, for example, dust, ,grease, erode things
and so on, but do not removed anything contained in
the coating.
3. instruction about the measurement result:
a. single measurement is not credibility at statistics p-
oint. So all the value displayed by the tester are ave-
rage value. The time after time measurement is co-
mplete by detect head and tester within one second.
b. To make the measurement more precision, you can
measure several times, and then delete the big error
one, at last use the tester's analysis function to get
five statistical data: average value (AVG), MAX, MIN,
standard warp (dFR), data number (NO).

-24--03-
Specifications
1. Measurement range and tolerance：
Range Resolution Tolerance
0~1999μm 0.1um/1μm ±(3%H+1)
Remark: H=Nominal transformation ratio
3. Other Specification:
2. Condition of Objective material:
Suitable for measure about non magnetic coating on
magnetic conductor base material.
The base material minimum curvature radius.
Protruding: 2mm Concave =11mm
Base material minimum diameter: 12mm
Base material limit thickness : 0.5mm
Technical parameter
LCD display
Power supply
Operation current
Battery life
Auto off
LCD backlight function
Operation temperature
Operation humidity.
Low battery indication
Product size
Weight
Technical index
3 digits half number display
9V alkaline battery
Around 14mA
Continuously 20 hour usage.
After 1 min. haven't manipulated
After 7 sec. haven't manipulated
0~40℃
10~95% RH
7.0V ± 0.2V
67x 30x 183mm
147G (without battery)
h. the detect head's pressure:
The pressure on the target piece can affect the mea-
surement value, so the tester use spring to generate
a steady pressure.
i. Detect head's placement:
How the detect head placed can affect the measure-
ment. You should be sure the detect head and the
target piece's is vertical.
j. the target piece's distortion
The detect head can make the target piece of soft
coating distort, if the distortion is too big, the measu-
rement value will not correct.
2. the regulation when you are using the tester:
a. the basic metal property
The standard piece's metal magnetism and surface
roughness should similar with the target one.
b. the thickness of the substrate:
Check whether the substrate's thickness go beyond
the critical thickness or not.
c. verge effect:
You should not measured at the distortion, for exa-
mple, verge, hole or inner turn angle and so on.
Other Items

AS930
FILM/COATING THICKNESS GAUGE
DEL
ZERO
/ON
Fe
-04--23-
Main parts explanations
Need To Know
Before Use
1
2
3
4
5
7
6
d. Curvature:
The curvature of the target piece can affect the
measurement result. This effect will increased as the
curvature's radius reduced.
e. Roughness degree of the surface:
The roughness degree of substrate metal and
coating can affect the measurement. The bigger the
roughness degree is, the bigger the effect is. Rough
surface will cause system error and incidental error.
You should increase the measurement number at
different place to reduce incidental error. If the sub-
strate metal is rough, you must adjust ZERO point on
the substrate metal which is not coated and has
similar roughness with the target one; or you can use
impregnant which can not erode the substrate metal
to dissolve the coating, and then to adjust the ZERO
point.
f. magnetic field:
The strong magnetic which generated by wiring can
badly affect the measurement precision of magnetism
method.
g. Attachment:
The tester is sensitive to the attachment which can
prevent the test head contact the coating, so you
must clear the attachment to sure the tester's head
contact the surface target piece closely.

-22--05-
Note:
Above key function descriptions just are simply
introduction, for details please read operation
instructions part in this manual.
ZERO
/ON
DEL
1. LCD display
2. Sensor
3. Menu (single measure SNG, Continuously
measure CTN, Average measure AVG, Maximum
measure MAX ) Search upward and basic
calibration key.
4. Menu(single measure SNG, Continuously
measure CTN, Average measure AVG, Maximum
measure MAX ) Search upward and delete all
data key.
5. Power on/ set zero
6. Simple function indication
7. Battery door.
3. Other items
Attentions
1. Factors which affect the measurement precision and
some instruction:
a. magnetism of substrate metal:
The magnetism change of substrate metal affect the
measure result of magnetism method (the magnetism
change of low carbon steel can be considered lightly
in real life), to avoid the effect of heat treatment and
cold process, you should choose a standard piece
which have the same property as the target substrate
to adjust the tester, you also can use a piece which
is not coated to adjust.
b. thickness of substrate metal:
Erevy instrument has a substrate metal critical thic-
kness. Bigger than the thickness, the measurement
will not be affected by substrate metal thickness.
This tester's critical thickness is less than 0.5mm
according to the production specification.
c. verge effect:
The tester is sensitive to the steep change of the tar-
get piece you want to measure. So the measurement
which near the verge or inner turn angle of the piece
is not trustiness.
Other Items

-06--21-
Displays functions
Need To Know
Before Use
Fe
1 2
3
4
5
9
10
6 7 8
Fe
1. : Backlight indication, the backlight will off after
7 sec. haven't operation when measure.
2. Measurement value display area.
3.
4. : Measurements on steel or iron substrate.
5. : Memory recordation status.
6.Measurement mode, Data analysis indication.
7.Number of recorded data
8.Recorded data display.
9. : Imperial system unit (1mil= 0.0254mm = 25.4 )
10. : Metric system unit (1mm = 1000 )
Battery mark shows current residual battery power.
Has following 5 grades:
:battery is sufficient
:battery is comparative sufficient
:battery is nearly deficient
:battery is nearly exhausted, need to have a
replacement
:battery is exhausted completely.
μm
μm
Display dFR:
Display NO:
Caution:
a. when the measurement number is flashing, please
press ZERO/ON key to stop it, and then press UP /
DOWN key to change mode.
b. The displayed value in the operation instruction is
merely a example to explain the operate method,
you should follow the practice measured value.
c. If there is nothing operation for 1 min, the tester will
power off automatically.

-20--07-
2. Operation instructions
Operation
Explanations
Substrate and standard piece
Standard piece:
a. All the measured sample you can choose for
standard calibration piece. Shortened form stand-
ard piece.
b. The coated standard piece
The coated standard piece must choose inform thi-
ckness, uniformity and have a strong bonding non-
magnetic coating.
Substrate:
a. The standard substrate's roughness and magnetism,
must as close as the target testing material. For
identification the substrate suitability, can compare
standard substrate with the target testing piece
substrate's measured data.
b. If the target testing piece substrate's thickness
under the regulated thickness range, you can take
two methods to adjust as following.
1). adjust on the standard piece which has the same
thickness with the target testing piece.
2). use a standard metal gasket piece which have
enough thickness and similar magnetic and ele-
ctricity property or a testing piece, but must be
sure that there is not spacing between substrate
metal and gasket metal.
c. If the curvature is too big to adjust on plane, the
coating standard piece's curvature should the same
as the target testing piece's curvature.
Data analysis
The tester can analyze data automatically after have
measured several group data, press DOWN/ UP key to
change mode, LCD will display average value (AVG),
MAX, MIN, standard warp (dFR), data number (NO), LCD
displayed as following picture at this time:
Display Average:
Display MAX:
Display MIN:

-08--19-
1). Grip tightly the unit body with your left hand; hold down
the battery door with your right hand thumb to open it
according to the arrow referring direction, as shown in
following figure:
2). Insert the 9V battery into battery compartment, note
the battery polarity, and then close the battery door,
as shown in following figure:
Operation
Explanations
Memory data record/check and delete
1. Record:
The tester will record the measurement result automa-
tically and the measurement quantity will plus 1 after
every measurement, the quantity will increased until it
up to 15. If the measurement is go ahead at this time,
LCD will merely display the measurement value, but
not record it.
2. Check
you can press UP and DOWN key to look over the
measurement value when the measurement quantity
is flashing.
3. Delete
a. delete the current data: when the measurement
value is apparently error, you do not want it is recor-
ded, you can press the 'down' key to make the mea-
surement value back to the above one when the
measurement quantity is flashing, and then you can
measure for another time.
B. delete all the data: you can delete all the data by
press the ZERO/ON key for 2 second when the
measurement quantity is flashing.
Battery installment
+
-

AS930
FILM/COATING THICKNESS GAUGE
DEL
ZERO
/ON
-18--09-
Low battery
indication
3). Starting the unit and check-up battery
a. Press the key to start the unit, as shown in
following figure:
b. After the entire screen displays for 1 second, the
default state is acceleration mode, if this time on the
LCD screen displays the symbol or , please
promptly replace the battery, as shown in following
figure:
Operation
Explanations
ZERO
/ON
Coating tolerance measurement
Press ZERO/ON key to open the tester, and then press
UP /DOWN key to change the test mode, when LCD
display DIF, that is to say you have into Coating
tolerance measurement mode.
LCD displayed as following picture at this time:
Place the detect head to the target piece you want to
measure, and then press the detect head lightly to
measure, the buzzer will sounded, LCD will display the
absolute value which is the before value subtract the
current value, LCD displayed as following picture at
this time:

-10--17-
Operation
Explanations
Instrument calibration
To increase the test result is more correct; please cali-
brate the instrument at the test place. The instrument has
three different calibrations to suit the needs of the user. :
zero point calibration, two point calibration, basic
calibration.
Zero point calibration:
a. carry a measurement on a standard substrate or on
a uncoated substrate. LCD display a data, for
example ,0.3um, like the following picture:
b. do not lift the detect head and press the ZERO/ON
key, the buzzer will sound, that show you have com-
plete Zero point calibrate . LCD displayed like the
following picture at this time:
Continuous measurement
Fe
Fe
Press ZERO/ON key to open the tester, and then press
UP / DOWN key to change the test mode, when LCD
display CTN, that is to say you have into Continuous
measurement mode.
LCD displayed as following picture at this time:
Place the detect head to the target piece you want to
measure, and then press the detect head lightly to
measure, the buzzer will not sounded during the me-
asurement, LCD will display the measurement result
continuously until the detect is lifted, the last measure
value will be saved in the test automatically, the qua-
ntity of the data are also be memorized, LCD display
1 at the same time.
(when the second measurement is finished, the quan-
tity will increased to '2', like this,), LCD displayed as
following picture at this time:
Fe substrate
AS93 0
FILM/COATING THICKNESS GAUGE
DEL
ZERO
/ON
Fe

-16--11-
Operation
Explanations
Fe
c. If you want to correctly adjusted, you must repeat a
and b to make basic measure value less than 1 m,
this can improve measurement precision.
Two point calibration:
a. calibrate zero point first.
b. carry a measurement on the standard piece which
thickness approx. equal to the target piece.(like
1000 m). If the LCD display 1006 m, like the
following picture:
μ
μ μ
Fe
Fe
Single measurement
Prepared target piece you want to test.
Press ZERO/ON key to open the tester, the buzzer will
sounded, the tester into the tolerant test mode single
test mode, LCD displayed as following picture at this
time:
Make detect head contact the test surface vertically
and press the detect head lightly, LCD display a value,
for example, 136 um, and buzzer sounded at this time,
LCD displayed as following picture at this time:
Every time detect head contact the test surface vertic-
ally, buzzer will sounded at the same time, and LCD
will display test result, if you want to test for another
time, you must lift the detect head, and then repeat the
operation above.
Caution:
If the detect head contact the iron basic too closed
when you open the tester to self-check, LCD will
display ERR
Fe substrate
Standard piece
AS93 0
FILM/COATING THICKNESS GAUGE
DEL
ZERO
/ON
Fe

-15-
Operation
Explanations
Fe
c. do not lift the detect head and press the UP and
DOWN key to correct the read value, after these the
adjust is complete, you can measure at this time.
LCD displayed like the following picture at this time:
if you want To point calibration adjusted correctly,
you can repeat b and c to improve measurement
precision and reduce incidental error.
Basic calibration:
It is necessary to change the basic calibration under
the following conditions:
----------the top of the detect head is wear and tear
----------after the detect head is amended
----------Special use
----------the tester is not used or adjusted (zero adjust-
ment) for a long time
If the error go beyond the regulate range during the
measurement, it is necessary to adjust the detect head
for another time, this is named basic calibration.
Though input seven adjust value (zero and 6 thickness
value)can readjust the detect head. The operation
method of basic calibration is as following:
a. Prepare six standard pieces, the thickness is at
45~55, 95~105, 220~280, 450~550, 900~1050,
1900~1999, unit: m.μ
-12-
Unit change
Press ZERO/ON key to open the tester, the buzzer will
sounded, and then press UP / DOWN key to change
the test mode, when LCD display UINT, that is to say
you have into unit change mode.
The tolerant unit is μm, LCD displayed as following
picture at this time:
Press ZERO/ON key, you can change μm to mil or you
can change mil to μm, LCD displayed as following
picture at this time:

-14--13-
Operation
Explanations
b. press the UP key and ZERO/ON key when the tester is
closed until LCD displayed as following:
When appear the value 0.0 m, you can carry zero
adjustment to iron basic.
c. lift the detect head, appear a value at 45~55, for exa-
mple,48.0, LCD displayed as following at this time:
μ
Choose a standard piece, its thickness is at 45~55,
press UP and DOWN key to amend the display value,
make the display value accord with the standard
piece's thickness, and then place the standard piece
on the iron basic to adjust.
d. lift the detect head for another time, appear a value at
95~105, for example, 100, LCD displayed as following
picture at this time:
choose a standard piece, its thickness is at 95~105,
press 'up' and 'down' key to amend the display value,
make the display value accord with the standard
piece's thickness, and then place the standard piece
on the iron basic to adjust.
e. like this, until the last one is adjusted, the tester will
closed automatically and the new adjust value has
been saved in the tester. The tester will work follow the
new adjust value when you use it next time.