Kett LE-200J User manual

Operating Manual
Thank you for purchasing this product.
Please read the operating manual carefully and use this product properly.
Coating Thickness Testers
LE-200J/LH-200J/LZ-200J

For safety precautions
Improper use of the Coating Thickness Tester in violation of the following safety notes may result in death, injury or
damage to property due to re, etc. While the safety of the product has been given considerable attention, read the
precautions in the operating manual and use the instrument properly.
■Observe the safety precautions.
Read the precautions noted in the operating manual.
The safety measure of the unit may be impaired if instructions are ignored during use.
■Do not use if broken.
If you suspect a problem or malfunction in the unit, make sure to contact the vendor.
■Meaning of warning symbols.
In order to prevent damage resulting from erroneously operating the equipment, the following symbols are indicated in
the operating manual and on the product. These symbols have the following meanings.
Caution Failure to observe these items may lead to injury to the user or damage to property.

Contents
1. Measuring Principles and Characteristics ............................................................................ 4
2. Instrument view..................................................................................................................... 6
3. Accessories .......................................................................................................................... 7
4. Keypad Fanctions ................................................................................................................. 8
5.Specications........................................................................................................................11
6. Preparations for Operation ...................................................................................................12
7. Measuring Procedure ...........................................................................................................21
8. Functions ..............................................................................................................................25
9. Master Calibration.................................................................................................................31
10. Notes for Measuring and Handling ......................................................................................32

4
• The model LE-200J electromagnetic coating thickness tester is designed to measure the thickness of non-magnetic
coatings such as paint or plating on magnetic metal substrates (iron or steel).
• The model LH-200J Eddy Current coating thickness tester is designed to measure the thickness of insulating coatings
such as alumite or paint on non-magnetic metal substrates (such as aluminum or copper, etc.).
• The model LZ-200J dual-type coating thickness tester is designed to measure the thickness of either non-magnetic or
insulating coatings on either magnetic or non-magnetic metal substrates.
1. Measuring Principles and Characteristics
Applicable Coatings
Model LZ-200J
LE-200J LH-200J
Applicable Coatings
Paint
Lacquer
Rubber
Lining
Chrome
Copper
Other
Plastic
Resin
Enamel
Zinc
Tin
Aluminum
Paint
Rubber
Enamel
Resin
Alumite
Plastic
Lacquer
Other
Substrate Iron Steel Aluminum, Copper, Brass, etc.

5
• LE-200J
(Electromagnetic measurement method : For
measuring the thickness of non-magnetic coatings
on magnetic metal substrates)
When an alternating current electromagnet is brought
near iron (or other magnetic metal) the number of
magneticuxlinespassingthroughthecoilchangesin
proportion to the distance, thereby causing a change
in the voltage at the ends of the coil. This change in
voltage is determined from the current value and this is
used to compute the thickness of the coating.
• LH-200J
(Eddy Current measurement method: For
measuring the thickness of insulating coatings on
non-magnetic metal substrates)
An eddy current is produced in the surface of a metal
whenacoilthroughwhichacurrentofxedfrequency
is brought near the metal. This eddy current and the
voltage at the ends of the coil change in proportion to
the distance between the coil and the metal surface.
This change can be determined from the current
value and this is used to calculate the thickness of the
coating.
• LZ-200J (Dual Electromagnetic and Eddy Current Type)
The model LZ-200J is a dual type coating thickness tester which features both the electromagnetic and Eddy Current
measurement methods.
Low-Frequency
Power Supply
Non-Magnetic Coating
Iron • Steel Thickness D
Electromagnetic coil
Current
Change i
i
Induction coil
Insulating Coating
Non-Magnetic Metal Thickness D
High-Frequency
Power Supply
Current
Change i

6
Printer Paper Compartment
Printer Paper Compartment
Cover
Printer Paper Cutter
Printer
LCD Display
Keyboard
AC Adapter Socket
Probe Socket
RS232C Output terminal
Power Switch
Printer Battery Compartment
Main part Battery Compartment
<Side View> <Front Panel> <Rear Panel>
<Main part>
2. Instrument view

7
Printer Paper Calibration Foilcase Batteries size AA (10pcs) Operating Manual
Iron Substrate (FE-J) Aluminum Substrate (NFE-J) Standard Calibration Foils (6pcs) Probe Adaptor AC Adapter
(For LE-200J,LZ-200J) (For LH-200J,LZ-200J)
ConnectorMeasurement Part Connector
Fe Probe (Black) Electromagnetic (LEP-J) Carrying Case NFe Probe (Gray) Eddy Current (LHP-J)
<Probe>
Measurement Part
<Accessories>
3. Accessories

8
Key Name Function
RESET key
In order to reduce power consumption, the LE-200J • LH-200J • LZ-200J automatically go into
the Sleep Mode and "SLEEP" will be displayed on the LCD if the unit is left unused for mor than
10 minutes with the power on.The Reset Key is pressed to turn to the measurement mode.
CALIBRATION key The CAL key is pressed to perform the calibration adjustment.
ENTER key
The Enter key is used to input numeric values when performing the DATE,
LOT, CAL, DEL and LIMIT operations. This key is also used to move to the
nextstepwhenusingBR,FR,BINCandAC.
Dual-function Keys : The following keys also have a thing with two functions.
These are called function mode key. These keys are pressed imme
diately after presetting a function key. A result -- as a function mode
key -- functioning.
4. Keypad Fanctions

9
Key Name Function
PAPER FEED key The Paper Feed Key is used to feed out printer paper.
PRINTER ON/OFF key
This key used to turn the printer on and off. Lightly pressing this key will turn on the printer's power and the
asterisk ("＊") mark in the LCD display will change to sharp ("#"). When measurements are made while this
mark appears in the display, measured values will be printed out. Press this Key again to turn the printer off.
CREAR key This key is used to clear incorrectly numeric data.
FUNCTION key
Thiskeyispressedtousethedouble-denitionkeyfunctionmodes
(date, lot number statistical results, etc.). The LE-200J • LH-200J •
LZ-200J features the function modes described below.
DATE key This key is used to input (print) the date.
LOT key This key is used to input (print) the lot number.
DELETE key This key is pressed to erase the measurement data of incorrectly
performed measurements from the data memory.

10
Key Name Function
BLOCK RESULTS key This key is pressed to perform statistical calculations for each block.
FINAL RESULTS key This key is pressed to obtain statistical results from measurement number
N=1tothenalmeasurementnumber.
CONTINUE key This key is used to convert the measurement values display between the
Hold Mode and Continuous Monitoring Mode.
BLOCK LNCREMENT key This key is pressed to change the block number.
ALL CLEAR key This key is pressed to clear all measurement data and comments from
memory.
UNIT SELECTION key This key is used to select between µm and mils and measurement units.
APPLICATION NUMBER key
This key is pressed to check and/or change the number at which
calibration parameters are memorized.
LIMIT key This key is pressed to set upper and lower measurement values limits.

11
5. Specications
Model LZ-200J
LE-200J LH-200J
Measurement Mothod Electromagnetic Eddy Current
Probe Type LEP-J(Fe) LHP-J(NFe)
Object of Measurement Non-magnetic coatings on iron and steel substrates Insulating coating on non-magnetic metal substrates
Measurement Range 0 ~ 1500µm or 60.00mils 0 ~ 800µm or 32.00mils
Measurement Units µm or mils (selectable) µm or mils (selectable)
Measurement Precision Under 15µm : ±0.3µm (absolute error)
15µm or greater : ±2% (relative error)
Under 50µm : ±1µm (absolute error)
15µm or greater : ±3% (relative error)
No. of Calibration
Parameter Memories 4 4
Resolution 0.1µm (less than 100µm)
1µm (100µm or greater) 1µm
Min. Measurement Surface Area 3x3mm 5x5mm
Display 16-digitdot-matrixLCD
Statistical Functions No.ofmeasurements,numberofblocknumbers,averagevalue,standarddeviation,maximumvalue,minimumvalue
Data Memory Capacity Coating data : 1,500 items No. of blocks per lot : 99
Printer 24-character thermal printer with 58mm paper width
Power Supply 100V AC (50/60Hz) or Batteries 6pce size "AA" (main unit)
Batteries 4pce size "AA" (printer)
Operating Temperature 0~+40˚C
Main Unit Weight Net : 1.1kg Shipment : 2.5kg
Dimensions MainUnit:120(W)x250(D)x55(H)mmProbe:ø11x90mm
Accessories Carrying Case, Iron Substrate (FE-J For LE/LZ-200J), Aluminum Substrate (NFE-J For LH/LZ-200J), Standard Calibration
Foilsx6,ProbeAdaptor,ACAdapter,PrinterPaper,CalibrationFoilcase,Batteries(sizeAA)x10,OperatingManual

12
1. Measurement Preparations
Preparing the power source
The LE-200J • LH-200J • LZ-200J have been designed
for use with either 100V/220V AC 50/60 Hz or dry cell
batteries as the power supply.
• Running the LE-200J • LH-200J • LZ-200J on a
100V/220V AC power supply
Turn the main unit's power switch off and insert the plug
of the supplied AC adapter into the AC adapter Socket
ontherightsideofthemainunit.NextconnecttheAC
adapter to a 100V/220V power supply socket.
• Running the LE-200J • LH-200J • LZ-200J • on dry
cell batteries
Turn the main unit's power switch off and then insert
batteries into the rear battery compartments.
MainUnitsection:1.5V(sizeAAalkalinebatteries)x6
 Printersection:1.5V(sizeAAalkalinebatteries)x4
Only use alkaline batteries.tting at the end
• Running the LE-200J • LH-200J • LZ-200J on both
an AC power supply and dry cell batteries
When the AC adapter plug is connected to the unit's
AC Adapter Socket with dry cell batteries loaded into
the compartment the unit will automatically switch over
to the AC power supply.
Load baatteries into the main unit
Slide to open
6. Preparations for Operation

13
2. Loading Battery in the probe
Use the LEP-J (Fe) probe to measure the thickness of
non-magnetic coatings on magnetic metal surface or
the LHP-J (NFe) probe to measure insulating coatings
on non-magnetic metal surface.
• The probe can be easily connected to the main unit by
turning it a little while softly pressing it into the probe
socket on the right side of the main unit.
• When removing the probe from the main unit, always
besuretograspthemetalttingattheendoftheprobe
cord connected to the main unit. Note that the probe
cannot be disconnected by pulling on the black portion
of the cord.
3. Turning on the Power Switch
The power is turned on by sliding the power switch on
the right side of the main unit upwards. The type of
probe being used and the calibration parameters last
used are displayed on the LCD panel.
• Example : LZ-200J
＊FE APPL. No = 1
(Electromagnetic format (FE), Calbration Position (1))
＊NF APPL. No = 2
(Eddy Current format (NF), Calbration Position (2))
Connecting the probe
4. Inserting Printer Paper
• After removing the paper compartment cover, cut the
edge of the printer paper with a pair of scissors, etc.,
so that the paper has a clean edge and then insert the
edge fully into the printer through the guide slot in the
printer compartment.
• NextpressthePAPERFEEDbuttontofeedthepaper
out through the printer.
• If you wish to print out measurement data or the date,
etc., turn on the printer by lightly pressing the PRINTER
ON/OFF. The asterisk mark ("＊") in the LCD panel will
switch to a sharp mark ("#") to indicate that the printer
is on and ready to use.

14
6. Using the probe
The probe features a 1-point contact, fixed pressure
design whichensuresxedload applied thechip on the
tip the probe. As shown in the diagram, grip the probe
near the tip and press it against the measurement surface
sothatitisperpendiculartothesurface.Tomakethenext
measurement, lift the probe tip at least 10mm from the
measurement surface and then press it down again.
• The probe adapter can be used to obtain stable, reliable measurements
when measuring coatings on curved surfaces such as pipes , etc., or
whenmakingcontinuousmeasurementsonaatsurface.
5. Adjustment preparation
Adjustments must be made attempting to make
measurements. However, measurement calibrations
are stored in the unit’s computer memory, therefore
new adjustments are not required if the sample to be
measured has been measured previously. In this case,
the previous adjustments can be recalled from memory.
1
A standard "substrate" of the same material,shape and
thickness as the sample to be measured is used to make
calibration adjustments. Have the standard substrate
ready before beginning the adjustment procedure.
• Use bare standard substrates which are free of coatings such as
plating or paint. Standard substrates of this type are referred to as
"zero foils" in this manual.
2
In order to obtain the most accurate precise measurement
results possible, adjustments are performed with zero foils
and standard foils (samples of known thickness) using the
Standard Foil 4-point Adjustment Method.
• Refer to the chart to select a set of 3 standard foils appropriate for
making adjustments for the thickness of the coating to be measured.
<Standard Foil Combination Example>
•Thesuppliedstandardfoilvalueswillnotnecessarilybeexactlythe
same as those indicated in the chart. Instead, standard plates with
actually measured values close to these values are supplied.
• An attached standard board is used for an easy accuracy check.
Using probe adapter
for carved probe
It attaches in the point
of a probe with an
adapter. Furthermore,
a screw is tightened.
Using probe
Measuring Range Adjustment point ( Electromagnetic ) Measuring Range Adjustment point ( Eddy Current )
0~50µm Iron substrate 10µm 25µm 50µm 0~50µm Aluminum substrate 10µm 25µm 50µm
50~500µm
Iron substrate 50µm 100µm 500µm 50~300µm Aluminum substrate 50µm 100µm 300µm
500~1500µm
Iron substrate 500µm 1000µm 1500µm 300~800µm Aluminum substrate 350µm 500µm 800µm

15
Step Operation Display
1* FUNCTION KEY
2* APPL.No=(1
〜4)?
(Number displayed is the previous application number)
3* APPL. No=4
4
* NF
*** APPL.No=4 ***
(Printout)
7. Calibrating the LE-200J • LH-200J • LZ-200J
The LE-200J • LH-200J • LZ-200J can store up to
4 sets each of calibration parameters for both the
electromagnetic and high-frequency measurement
formats.
Decide which application number you wish to store
a particular set of calibration parameters in before
performing the calibration procedure.
In order to obtain stable precision, we recommend
that you perform 10 to 20 practice measurements to
calibrate the unit after turning its power on.
1) The calibration Parameters application number
(APPL. No.) is specified. Allowable application
numbers are from 1 to 4.
•Example : Set the Application Number to 4. Use the LHP-J probe
when making this setting.
(Input complete)

16
Step Operation Display Explanation
5* MASTER INF. Press the key.
6* ZERO Press the key while holding the probe toward the air.
7
(Measure 5 times) 1* ZERO 0.1 ..
2* ZERO 0.5 ..
5* ZERO 0.1 ..
Measure the (substrate) 5 times. The buzzer will sound and
the measured value will be displayed each time.
• Substrate: An uncoated (no plating, paint, etc.) sample of the same shape
and material as that to be measured.
• Depending upon the type of material, the value displayed may differ
greatly from that indicated in the example to the left (a value close to
zero). However, the procedure can be continued by setting it close to the
setting value by performing steps 8.
8* STD1 Press the key while holding the probe toward the air.
2) Performing Calibration
•Example:Performingcalibrationusingthezerofoilandstandardfoils(40,100and400µmfoils).
・・・・・
<Calibration using the zero foil>

17
Step Operation Display Explanation
9
(Measure 5 times) 1* STD1 40.1..
2* STD1 40.5..
5* STD1 39.9..
Place the 40µm calibration foil on the substrate and repeat
the measurement procedure 5 times.
• Depending upon the type of material, the value displayed may differ
greatly from that indicated in the example to the left. However, you can
continue the procedure by setting it near the setting value by performing
steps 0! and @.
0* d=? .. Press the key while holding the probe toward the air.
!
* d=40.0? .. Input the coating thickness of the calibration foil (40.0µm).
@* STD2 Press the key while holding the probe toward the air.
・・・・・
<Calibration using the standard foil (40µm)>

18
Step Operation Display Explanation
#
(Measure 5 times) 1* STD2 101 ..
2* STD2 100 ..
5* STD2 99.9..
Place the 100µm standard foil on the zero foil (substrate) and
repeat the measurement procedure 5 times.
• Depending upon the type of material, the value displayed may differ
greatly from that indicated in the example to the left. However, you can
continue the procedure by setting it near the setting value by performing
steps $% and^.
$* d=? .. Press the key while holding the probe toward the air.
%
* d=100? .. Input the coating thickness of the calibraiton foil (100.0µm).
^* STD3 Press the key while holding the probe toward the air.
<Calibration using the standard foil (100µm)>
・・・・・

19
Step Operation Display Explanation
&
(Measure 5 times) 1* STD3 401 ..
2* STD3 400 ..
5* STD3 401 ..
Place the 400µm standard foil on the substrate and repeat
the measurement procedure 5 times.
• Depending upon the type of material, the value displayed may differ
greatly from that indicated in the example to the left. However, you can
continue the procedure by setting it near the setting value by performing
steps *(and).
** d=? .. Press the key while holding the probe toward the air.
(
* d=400? .. Input the coating thickness of the calibraiton foil (400.0µm).
)* FE Press the key while holding the probe toward the air.
Input of calibration parameters for application No.4 is complete.
<Calibration using the standard foil (400µm)>
・・・・・

20
• 5 measurements are made at each stage of the zero and calibration foil adjustment procedure in order to obtain the
average measurement value.
• If you make errors while entering numeric values during the calibration procedure, press the key to delete the value
and then input the correct value. However, please note that corrections cannot be made after the key has been
pressed. If you press the key after entering incorrect values, press the key resume the procedure from step 5.