Kett L-500 User manual

Coating Thickness Tester
L-500
Operating Manual
Thank you for purchasing this product.
Please read the operating manual carefully and use this product properly.

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.
● Donotuseotherthanratedpowersupplyvoltage.
 Ifovervoltageisapplied,theunitwillbeheatedanditmaycausemalfunction,re,or
electric shock.
● Makesuretogroundthepowercable.
 Withthe2Poutlet,useaconversionplugtoground.
 Inthecaseof3P,itwillbeautomaticallygrounded.Ifnotgrounded,itmaycauseare
or an electric shock.
● Ifanyofthecablesincludingthepowercableisdamaged(broken),donotuseit.
 Failuretoobservethismaycauseare,anelectricshock,andthelike.
 Forpurchasingthespareparts,contactthevendor.
● Donotallowtheunittocomeincontactwithwater.
 Thisunitisnotwaterproof.
 Intrusionofwaterintotheunitmaycauseanelectricshockoramalfunction.
● Donotattempttodisassembleormodifytheunit.
 Otherwise,itmaycausemalfunction,re,orelectricshock,etc.
 Iftheunitisassumedtobefaulty,contactthevendor.
Warning Failure to observe these items may lead to death or injury to the user.
Caution Failure to observe these items may lead to injury to the user or damage to property.
Note Items which the user should be aware of in order to use the unit safely.

1. Measuring Principles and Features ................................................. 4
■ Measuring principle ......................................................................... 4
■ Features .......................................................................................... 4
 2.Specications .................................................................................... 5
3. Part names ......................................................................................... 6
■ Parts of main unit ............................................................................. 6
■ Accessories ..................................................................................... 7
■ Description of display and operation keys ....................................... 8
4. Measurement Preparation................................................................. 9
5. Measurement Mode ........................................................................... 11
6. About Statistics Function ................................................................. 12
7. Various settings ................................................................................. 14
8. Battery/printer paper replacement ................................................... 39
9. Data output......................................................................................... 40
10. Handling precautions ........................................................................ 42
■ Storage ............................................................................................ 42
■ Notes regarding measurement ........................................................ 42
11. If you thought it was a malfunction ................................................. 43
12. Error display....................................................................................... 44
CONTENTS

4
1. Measuring Principles and Features
■ Measuringprinciple
■ Features
● Thecalibrationcurvememoryfunctionisintegrated.
Up to 50 types can be calibrated and stored as an application for each probe. Thanks
to this function, the measurement can be performed without troublesome calibration
from the second time at the same measurement. A memorized application will not be
erased even if the power is switched off.
● Satisfactorilydiversiedfunctionsareprovidedasacoatingthicknessgauge.
Various settings such as auto power-off function, backlight setting, upper/lower limit
setting function, and statistics function are available.
● Datacanbeoutputtedtotheprinter.
Measured values, statistical calculation results, and more can be printed with the built-
in printer.
Electromagnetic type (Fe probe) Eddy current type (NFe probe)
Coating to be measured Paint Plastic Lacquer Resin Rubber Enamel Lining Zinc Chrome Tin Copper Aluminum Other Paint (Anodic oxide coating) Alumite Rubber Plastic Enamel Lacquer Resin Other
Substrate Iron/steel Aluminum, Copper, Brass, etc.
● Electromagnetictype(Feprobe)
Measurement of non-magnetic coatings on
magnetic metals
If an electromagnetic coil through which a constant
low-frequency current flows is brought into the
proximity of iron (magnetic metal), the number of
magnetic ux lines through the coil varies with the
approaching distance, which causes the variation of
voltage between the ends of the coil. This change
in voltage is detected by the current value and is
calculated in terms of coating thickness.
The Coating Thickness Tester L-500 is a coating thickness gauge that can measure in both
electromagnetic type and eddy current type depending on the probe to be connected.
Non-magnetic coating
D
Thickness D
lron/steel
Electromagnetic coil
i
Low-frequency power supply
i
Current change
Insulating coating
D
Thickness D
Non-ferrous metal
Induction coil
i
High-frequency power supply
i
Current change
● Eddycurrenttype(NFeprobe)
Measurement of insulating coating on non-magnetic
metals
If an induction coil through which a constant high-
frequency current ows is brought into the proximity
of a metal, eddy currents are generated on the
surface of the metal. Then these eddy currents
uctuate according to the distance between the coil
and the metal surface and thus changes the voltage
on each end of the coil. This change in voltage is
detected by the current value and is calculated in
terms of coating thickness.

5
2.Specications
Display resolution :0.1μm (when less than 100μm), 1μm (when 100μm or more)
Display :Digital (backlit LCD)
Data memory :24,000 points
Number of application
memories :50 (per probe)
External output :USB serial
Power supply :100-240V AC (50/60Hz) or battery 1.5V (AA alkaline) ×8 (main unit ×4, printer ×4)
Power consumption :25W
Battery life :70 hours (at turning off the printer and backlight)
Temperature/humidity
operating range :0 to 40°C, 85% RH or less (no condensation)
Additional functions :Substrate calibration, foil calibration, application selection, upper/lower limit setting,
unit switching, measurement mode switching, statistics calculation (block/group), data
memory, auto power off, backlight, print density setting, date and time setting, display
switching, etc.
Dimensions and weight :126mm (W) × 256mm (D) × 93mm (H), 750g
Accessories :Iron substrate (for Fe probe), aluminum substrate (for NFe probe), calibration foil x 6,
battery 1.5V (AA alkali) ×8, AC adapter, power cable POC00, probe adapter, strap,
printer paper ×2, surface protective sheet ×3, calibration foil case, carrying case, Easy
Guide for Calibration, Operating Manual
Options :Calibration foils (thickness other than those supplied), Measuring Stand LW-990
Model :EP-100 HP-100
Measurement method :Electromagnetic type (Fe probe) Eddy current type (NFe probe)
Applications :Non-magnetic coating on magnetic metal Insulation coating on non-magnetic metal
Measurement range :0-2,500μm or 99.0 mils 0-1,200μm or 47.0 mils
Measurement accuracy
(according to our
specied conditions)
:± 0.3µm (when less than 15µm)
± 2%
(when 15µm or more and less than 1,000µm)
± 3% (when 1,000µm or more )
± 1.0µm (when less than 50µm)
± 2% (when 50µm or more)
* Toimprovetheproduct,thespecicationsandexternalappearancemaybechangedwithoutnotice.
● Mainunitspecications
● Probespecications
Each probe is a required option. The probe you have selected will be included.

6
3. Part names
<Front>
<Rear> <Side>
■ Partsofmainunit
Battery compartment
for main unit
Data output terminal
(USB Mini-B)
AC adapter socket
Open/close button
Printer paper cover
Printer paper cutter
Display
Probe holder
Operation keys
Probe connector
Battery compartment
for printer
Strap holder
Cable holder

7
■ Accessories
Iron substrate Aluminum substrate Calibration foils ×6 1.5 V batteries (AA alkaline) ×8 AC adapter
For Fe probe For NFe probe
Power cable, POC00 Probe adapter Strap Printer paper ×2 Protective sheets ×3
At the time of shipment,
one roll is set in the main unit.
Calibration foil case Carrying case Easy Guide for Calibration Operating Manual
Electromagnetic type Eddy current type
(Fe probe) EP-100 (NFe probe) HP-100
Data output terminal
(USB Mini-B)
● Probe(requiredoption)
Each probe is a required option. The probe you have selected will be included.

8
■ Descriptionofdisplayandoperationkeys
Operation keys Functions
①Function key Used to operate an item on the display.
It is used as a [▲] [▼], [BACK], [ENTER] key, etc.
②[HOLD] key Records measured data at continuous measurement.
③[BLOCK RESULT] key Displays the calculation result in the current block.
④[GROUP RESULT] key Displays the calculation result in the current group.
⑤[0] to [9] [.] keys
Used to enter values and characters.
The [1], [3], [5], and [9] keys can be used as shortcut keys by holding down them.
Pressing the [7] key displays the list of the shortcut keys.
⑥[DELETE] key Erases the measured data from memory.
This key is also used to erase the entered values and characters at entry of them.
⑦[POWER] key Turns on/off the power of the main unit. To turn off the power, hold down the key.
⑧[FEED] key Feeds printer paper.
⑨[PRINTER POWER] key Turns on/off the power of the printer.
③
④
⑤
⑨
⑧
Date and time (→P.36)
Application number (→P.20)
Block number (→P.27)
Measurement method
Fe probe (electromagnetic type)/
NFe probe (eddy current type)
Continuous measurement icon (→P.24)
①
②
⑥
⑦
* When the screen displays all items
Data number
Group number (→P.28)
Average in current block
Printer icon ([ ] or [ ])
(→ P. 3 9)
Battery icon (→P.39)
Settings (→P.14)
2021/01/15 14:26 N=05535
APP 01 TEST-1 GRP 01
B=001 Bn=05535 Avg:12.3
1 2 . 5
Fe
μm
BLOCK GROUP APP SET

9
4. Measurement Preparation
(1) Powersupplypreparation
This unit can be used with 100-240 VAC (50/60Hz) or batteries.
* Use the supplied power cord POC00 for a 100 VAC power supply.
● When100-240VACisused
Connect the supplied power cord and AC adapter, and insert the
plug of the AC adapter into the AC adapter socket on the side of
the main unit.
Then, connect the AC adapter to a 100-240 VAC power outlet.
* Pleaseusethisproductin an electromagnetic noise-free
environment. Electromagnetic noise may cause differences in
measurements.
● Whenbatteriesareused
Install batteries in the main unit and printer, respectively.
<Installation of batteries for main unit>
Slide the lid of the battery compartment for the main unit to
open it. Install four 1.5-V AA alkaline batteries with attention to
the plus and minus directions.
* Be careful not to damage the lug of the battery case lid when
opening or closing the lid. When this tester is not used for a long
period of time, be sure to remove the batteries. Failure to observe
thismaycauseamalfunctionsuchasliquidleakage.
<Installation of batteries for printer>
Slide the lid of the printer battery compartment to open it.
Install four 1.5-V AA alkaline batteries with attention to the plus
and minus directions.
● WhenbothACpowerandbatteriesareused
If the AC adapter is connected with batteries installed in the
main unit, power is automatically supplied from the AC power
supply side.
* When AC power is used, it is recommended to remove the
batteries.
Battery compartment for printer
Battery compartment for main unit
<Installation of batteries for main unit>
<Installation of batteries for printer>

10
(2) Probeselection
There are two types of probes: electromagnetic type (Fe probe) and
eddy current type (NFe probe). Select the probe according to the
material of the substrate to be measured.
● Electromagnetic(Feprobe)cableisblack
→For measuring non-magnetic coating on magnetic metals
● Eddycurrent(NFeprobe)cableisgray
→For measuring insulating coating on non-magnetic metals
(3) Probeattaching/detaching
Make sure that the power is turned off before attaching or
detaching the probe.
● Probeattaching
Align the groove of the probe connector on the rear side of the
main unit with the protrusion of the joint part of the probe and
make an insertion. The probe is properly secured with a sound
of "click."
Secure the probe cable to the cable holder.
* The probe grip can be secured to the probe holder.
● Probedetaching
The probe can be detached by sliding it in the pulling out
direction while the ring of the probe connector is held.
(4) Attachingofsurfaceprotectionsheetandstrap
Attachment of a surface protection sheet allows the display and
operation keys to be protected from being dirty or damaged. In
addition, attachment of a strap allows this product to be hung from
user's neck or shoulder at use. Use the strap as necessary.
Pull out the protrusion while holding
the ring of the probe connector.
Probe holder
Cable holder
Align the groove of the main unit with the
protrusion of the probe
and make an insertion.