SANKO SWT-7000 III, SWT-7100 III Instruction Manual

SANKO Coating Thickness Meter

ＳＷＴ－７０００Ⅲ／７１００Ⅲ

Instruction Manual

CAUTIONS:

Before using the Meter, read this INSTRUCTION MANUAL
thoroughly and use the Meter correctly.
Keep this INSTRUCTION MANUAL carefully and refer to this
when necessary.
In the event of any doubt arising, the original
INSTRUCTION MANUAL (Japanese) is to be of final authority.

SANKO ELECTRONIC LABORATORY CO., LTD.

Tokyo･Osaka・Sendai・Nagoya・Fukuoka・Kawasaki

December 2014

Contents Pages

Attention for safety ･･････････････････････････････････････････････････････････････ １

Notes ･･････････････････････････････････････････････････････････････････････････ ３

Get started ･･････････････････････････････････････････････････････････････････････ ４

・ Contents in a package ･････････････････････････････････････････････････ ４

・ Names of part ････････････････････････････････････････････････････････ ５

・ How to fit batteries ････････････････････････････････････････････････････ ６

・ How connect, disconnect probes ･･････････････････････････････････････････ ７

・ How to hold probes ･････････････････････････････････････････････････････ ８

・ How to press a probe to an object ････････････････････････････････････････ ８

How to operate ･･･････････････････････････････････････････････････････････････････ ９

（１） How to switch power source ･･･････････････････････････････････････････ ９

（２）How to switch off ･････････････････････････････････････････････････････ ９

（３）Zeroing ･･････････････････････････････････････････････････････････････ １０

（４）Calibration standard (CAL) ･･･････････････････････････････････････････････ １２

（５）Zeroing ―in special cases ―･･････････････････････････････････････････････ １４

（６）2-point calibration in case it is difficult to perform zeroing･････････････････････ １７

（７）How to delete calibration ･･･････････････････････････････････････････････ ２２

Measuring ･･････････････････････････････････････････････････････････････････････････ ２３

Function switching ･･････････････････････････････････････････････････････････････････ ２４

（１）Switching to Non-interupt measurement mode ･･･････････････････････････････ ２４

（２）Switching to resolution ･･･････････････････････････････････････････････････ ２６

（３）Setting to Auto-Power-OFF ･･･････････････････････････････････････････････ ２７

（４）Switching to a mode for an optional substarate with FN-325 probe･･････････････ ２９

（５）Switching Backlight (ON, OFF) ････････････････････････････････････････････ ３０

Transferring data (SWT-7100Ⅲ)･･･････････････････････････････････････････････････････ ３１

Note to improve measuring accuracy････････････････････････････････････････････････････ ３２

Trouble shooting ･･････････････････････････････････････････････････････････････････ ３３

Specifications ◆ main unit ･･･････････････････････････････････････････････････････ ３５

◆ probe (optional）･･････････････････････････････････････････････････ ３６

References（measurement principles） ･････････････････････････････････････････････････ ３９

Attention for safety（to use in correct ways）

To prevent you and your properties from damaging please take some time to read thoroughly this “Attention

for Safety” and correct uses keep these instructions attentive to read when necessary.

Warning

● Do not dump nor wet the gauge unit in water, otherwise it may cause damages.

Keep off water Please contact our distributor or sales office should submerged water into the unit.

● Keep metals or foreign substances from the unit, otherwise it may cause damages.

Prohibition Please contact our distributor or sales office should put any materials or foreign substances in the unit.

● Do not insert a screwdriver into the connector, otherwise that it may cause damages.

Prohibition

● Do not throw, smash, drop the unit, otherwise it may cause damages.

Prohibition

● Never dismantle or modify the gauge unit by yourself, otherwise it may cause errors or damages.

Dismantling prohibited

● Do not use AC adaptors other than an exclusive adaptor for this unit, (SWT-7100Ⅲ only)

Prohibition otherwise it may cause damages, electric shocks, fires.

● Please use the exclusive adaptor with a designated Voltage only, otherwise it may cause
Prohibition damages, electric shocks, fires.

● Keep the terminals of the adaptor free from metal pieces or dust, otherwise it may cause short circuit,

Prohibition electric shocks, fires.

● Do not handle the AC adaptor with wet hands, otherwise it may cause electric shocks.

Prohibition

● Do not damage, brake, modify, forcefully bend or twist the cord of the AC adaptor. Or, do not load it

Prohibition with heavy staff or pinch it forcefully, otherwise it may cause breaking wires, short circuit, fires.

－１－

Attention For Safety（to use safely and correctly）

Warning

！ ● Never fail to remove batteries from the unit when not in use for a long time.

Must Leakages occurred from deterioration of batteries may cause erroneous reactions or damages.

！

● Be sure to read this book on the item of 「How to fit batteries」 to replace batteries.

Must

！

● Store batteries in a place where children and pets are incapable of handling them.

Must Please call a doctor like in a case that a battery is swallowed.

！

● Do not put batteries into fire or water. Store them in a cool, dry and dark place avoiding flames, high

Must temperature and moisture.

！

● Do not get batteries shocked and dismantled, and soldered for processing

Must

！

● Do not short or recharge batteries and handle with metallic tools like pliers.

Must

！

● Replace with new (unused) batteries according to the procedure of this Operating Instructions.

Must

！

● Be sure of paying attention on battery polarity marks, （＋、－） to place the batteries.

Must

！

● In case a battery has leakage please clean up the place with clothes to replace batteries.

Must And do not touch the leaked liquid and wash skins or clothes in case they are contaminated.

！ ● Comply to regulations and laws in your neighbors when disposing of them.

Must

！

● Insert a plug of the ＡＣ adaptor to the full end, otherwise it may cause electric shocks and fires with

Must burns. And do not use faulty or loose receptacles.

！

● Switch to OFF and unplug the AC adaptor from the receptacle to avoid electric shocks and

Must damages when inspecting or cleaning the gauge.

－２－

Attention For Safety（to use safely and correctly）

Attention

● Do not use Benzene or Thinner for cleaning and spray pesticides on the meter, otherwise it may

Prohibition cause cracks or malfunctions.

● Do not store the meter in places getting high in temperatures such as in a car in strong sunlight or near

Prohibition heaters, otherwise it will be hazardous to the meter and may cause malfunctions.

● Do not step, trample down nor put anything on the meter.

Prohibition

● Keep the meter away off rubber-made articles or vinyl articles. A lengthy contact between

Prohibition meter and them may cause stickiness and it may be difficult to get rid of them.

Notes:

● Please read this manual thoroughly for correct operations before getting started.

● This meter is a precision gauge. Please handle with care.

● Do not tug, bend, fold or curl up forcefully the cables of probes.

● Do not knock or scratch objects with the tip of a probe.

● Keep the tip of a probe clean. A slight amount of dust may cause errors in measurements.

● Clean the meter and store it in free from dust and moisture after operation.

● To keep precision with a gauge please contact our distributor or our sales office once a year for inspection

● Keep the meter away off electric noises, shocks or magnetic fields when in a use.

－３－

Get started

◆ Contents in a package Please make sure if the following items sre included.

・ Main unit

ＳＷＴ－７０００Ⅲ, or ＳＷＴ－７１００Ⅲ

・ Dry batteries LR6 (2 pieces)

・ Carrying case

・ Instruction manual （this manual）

・ ＡＣ adaptor （ＳＷＴ－７１００Ⅲ ｏｎｌｙ）

・ ＵＳＢ cable （２．０ｍ） （ＳＷＴ－７１００Ⅲ ｏｎｌｙ）

・ ＵＳＢ driver （ＣＤ） （ＳＷＴ－７１００Ⅲ ｏｎｌｙ）

● In case there are optional probes included.

・ Probes

For ferrous（Ｆｅ）, non-ferrous（ＮＦｅ）, for both Ferrous/non-ferrous (FN-325)

・ Zero boards for testing （for Ｆｅ：ferrous substrates/for ＮＦｅ：non-ferrous substrates

/for FN：either ferrous or non-ferrous substrates, ２ pieces.）

・ Thickness standards （films ：２ foils、bake：１ sheet）

－４－

◆ Names of part

Probe socket

Display

Power ON/OFF key

Hand strap

Keys

Battery compartment （the back）

Socket for AC adaptor connector
（SWT-7100Ⅲ only）

Socket for ＵＳＢ cable connector
(SWT-7100Ⅲ only)

● Probe socket
Connect an optional-exclusive SWT probe to the probe socket.

(１) To measure a film thickness of coated, plated, lining layer on substrates made of ferrous material

please use a probe of (Fe) series for the connection.

（２） To measure a film thickness of coated, plated, lining layer on substrates made of non-ferrous materials
such as Aluminum, Copper, etc. please use a probe of (NFe) series for the connection
(３) To measure a film thickness on either ferrous or n on-ferrous substarate please use a probe of (NF-325)
f or connection.

● Reading display

It indicates measurement results, operation guides, or malfunction status. With a backlight.

● Power ON/OFF key

It switches On or Off.

● Keys

（１） 「ZERO」key、「▲ 」key、「▼」key

They are adjusting keys to be pre-used before measuring to obtain correct results.

（２） 「CAL/DELETE」key

CAL: Initiate or finish adjustment by using standard folils.

DELETE: Deletes incorrect or unnecessary measuring results for adjustment.

(works only when 「ZERO」、「CAlLIBRATION」 is processed.)

● Battery compartment

It contains 2 pieces of dry battery (LR6).

● Hand strap

Hang the meter through a strap over your wrist never to drop it.

● Socket for AC adaptor (SWT-7100Ⅲ only)

This is a socket connected to the exclusive AC adaptor (accessory).

● Socket for ＵＳＢ cable (SWT-7100Ⅲ only)

It is a socket connected to a USB cable (accessory)

－５－

◆ How to fit batteries

① Open the battery lid on the back of the unit.

Press down and slide the lid in direction of arrow to open.

② Insert batteries.

Ensure correct battery polarity ○

＋

、 ○－ for placement.

③ Close the lid.

C

aution

● Use designated and new (check battery-life)) batteries or ones supplied in this package.

● An incorrect use of batteries may cause leakages, bursts. Do not intermingle new ones

with old ones.

● Take out batteries to store when not in use for a long absence, and that may avoid

Leakages.

● Keep batteries off children and pets.

● Comply to the laws and rules in your Local Authorities when disposing of batteries.

◎ About reading display

When placing batteries in the unit, the messages and warning below on the screen may be indicated.

And these are not breakdowns, wait until the reading disappears with a beeping sound.

Batteries have run out when the display on the unit indicates the mark listed below.
Replace with new batteries.

In case of using FN-325 probe:

After Power source switched to OFF at Automode,

AUTO is indicated on the display and when Fe or NFe substrate

is set at mode corresponding to substrate, “ ” for a

ferrous substrate, “ ” for a non-ferrous substarate is

indicated on the display.

A use of exclusive Fe-probes shows “Fe” and of exclusive

NFe-probes does “NFe ” on the display.

－６－

（ＡＵＴＯ）

－

μｍ

ＳＴＡＲＴ ＵＰ

ＰＨＡＳＥ

Ｈｏｌｄ Ｐｒｏｂｅ

ｉｎ ｔｈｅ ａｉｒ．

Ｄｏｎ‘ｔ ｔｏｕｃｈ ｉｔ

ｏｎ ａｎｙ

ｍｅｔａｌｌｉｃ ｏｂｊｅｃｔ．

ＥＲＲＯＲ！

Ｃｏｎｎｅｃｔ ａ ｐｒｏｂｅ

ｂｅｆｏｒｅ

ｓｗｉｔｃｈｅｄ ｏｎ．

ＢＡＴ

NＦｅ

Ｆｅ

◆ How to connect or disconnect a probe

◆ Connect an optional, exclusive SWT probe to the main unit.

Select one of the probes suited for your application.

Insert a probe connector into the probe socket of the main unit.

Make sure of aligning the keyway leading to a smooth joint without doing by force.
Insert and push it untill it is locked.

Clasp

Probe connector

Probe socket

Probe socket in the main unit

◇ Remove the exclusive probe from the unit.

Pull off the probe carefully by bending inward clasp springs at the both ends of the probe connector to
release the clasps.

Do not pull off by force or it may cause damages.

Caution

Make sure that Power switches to off when connecting or disconnecting the exclusive

SWT probes.

Or else, it may cause damages to connect or disconnect while Power is on.

－７－

Measurement object Measurement object

◆ How to hold probes

Cable

Pinch and hold this part using fingers (thumb and forefinger)

Black resinous ring

Tip to press against a measurement object

◆ How to press a probe to an object

・ Keep the probe 5 cm or over away off metallic objects when not in use of measuring.

・ Press the tip of the probe perpendicularly against a measurement object.

Tilting may cause large errors.

○ ×

Probe

 Press the probe quickly and smoothly to objects.

A slow-acting press may cause large errors.

Quickly and calmly press perpendiculary against the object by grabing the probe as illustrated.

It beeps and the reading screen shows the measuring result.

When it does not beep, lift it 5～7 cm above the object and try again to take measurements.

Caution

◆ Do not smash or hit the probe against objects, or it may cause damages to probes and to

objects

◆ Do not scrape, scrub objects with the probe except in a special measurement.

Or it may break the tip of the probe and cause damages to the tip and surface of objects

－８－

How to operate

（１） How to switch Power source

Press ON／OFF key.

This message lasts for about 3 seconds.

Caution

Hold the probe in air without operation when

the reading is on display. Or it may indicate
「ERROR」 and automatically switch off
Power.

The buzzer emits a beeping sound. The Backlighｔ mark is indicated when ON.

In case of connecting FN-325:

After Power source switched to OFF at Automode,

AUTO is indicated on the display and when Fe or NFe

substrate is set at mode corresponding to substrate,

“ ” for a ferrous substrate, “ ” for a

non-ferrous substarate is indicated on the display.

A use of exclusive Fe-probes shows “Fe” and of exclusive

NFe-probes does “NFe ” on the display.

（２） How to switch off

Press ON／OFF key.

The buzzer beeps.

The message lasts for about 2 seconds.

Caution

Never remove a probe from a unit when

Power is ON. Or the electric shocks may
damage the probe and the unit

The buzzer beeps and this unit is switched off.

－９－

ＰＯＷＥＲ

ＯＦＦ

Ｔｅｒｍｉｎａｔｉｎｇ

ｐｈａｓｅ

ＳＴＡＲＴ ＵＰ

ＰＨＡＳＥ

Ｈｏｌｄ Ｐｒｏｂｅ

ｉｎ ｔｈｅ ａｉｒ

Ｄｏｎ‘ｔ ｔｏｕｃｈ ｉｔ

ｏｎ ａｎｙ

ｍｅｔａｌｌｉｃ ｏｂｊｅｃｔ．

（ＡＵＴＯ）

－

μｍ

NＦｅ

Ｆｅ

（３） Zeroing

It is capable of getting started on measurements immediately after the message of 「START UP PHASE」

has disappeared as described on page 9.

However, it makes errors depending on material formation and shapes to be measured. To minimize measurement
errors and obtain as accurate results as possible please be sure of carrying out 2 points of adjustments of
「Zeroing」 and 「Calibration standard」 before measuring process.

※ Please prepare for a Substrate plate the identical material, quality and size to a measuring object.

（This substrate plate should be designated as a 「Zero Plate」）

◆ Press ZERO key.
The buzzer emits a beep sound. CAL/DELETE key changes to one data “deletion” function.

Press the probe to the Zero Plate.

The buzzer beeps.

Zeroing is in process.

The reading shows that the unit is set to

measure on a substrate material of Ferrous by
connecting a 「Fe-325」 probe, or a 「Fe」 series
ｐrobe.

Measured a meanl value
When the measuring value results in largely off
the “0”, press CAL/DELETE + ▼ key to
delete the latest data out of measured values.
It indicates “—“to delete all data.

Remove the probe from 「Zero plate」 ● Repeat a measuring process 1～20 times by pressing

the probe to 「Zero plate」. （A mean value is

displayed whenever a probe is pressed）

◆ When a measuring process reaches the 20th time, the
buzzer beeps, beeps 2 times and afterward do not accept

any entry.

Press ZERO key when finishing adjustment.

－１０－

【ＺＥＲＯ Ｃａｌ．】

１．Ｍｅａｓｕｒｅ ｓｕｂｓｔ

－ｒａｔｅ Ｓｅｖｅｒａｌ

ｔｉｍｅｓ．

２．ｐｒｅｓｓ ZERO ｋｅｙ．

ＺＥＲＯ cａｌ (Ｆｅ)

1

μｍ

The buzzer beeps. It stopes its DELETION function of CAL/DELETE key

The reading shows that 「Zeroing」 has completed and

it becomes possible to take measuring and adjusting

operations of this unit.

● It is correct that numerical values measured by pressing the probe to the 「Zero Plate」 indicates 「０」 or in the

neighborhood of 「０」.

When the measured value results in largely off 「０」μｍ, please try again zeroing from the beginning.

● ［ＬＬＬＬ］ indicated on display during a time of zeroing means that the calibration point heavily deviates from
the standard please make sure that the material is not in process of being built with others and repeat the

zeroing in 2～4 times until a stable 「０」 is obtained.

※ In case of using a dual type probe 「FN-325」, perform 「calibration by ferrous substrate」 and 「calibration by
nonferrous」 at the same time as possible as you can.

Note ： The latest measured value replaces the previous ones and the new value of

「Zeroing」 is stored.

－１１－

(Ｆｅ)

０

μｍ

(4) Calibration standard (CAL)

● Pepare 「Zero Plate」 used for 「ZEROing」

● Prepare 「Thickness standard」、foiles that are the same thick as the measuring film or thicker than that.

● Place the 「Thickness standard」 on the 「Zero Plate」．

● Press the CAL/DELETE

The buzzer beeps. CAL/DELETE key changes to one data “deletion” function.

Press again CAL/DELETE key to interrupt Calibration

standard (CAL).

It beeps whenever pressing.

Calibration standard is in process.

The reading shows that the unit is set tomeasure
on a substrate material of Ferrous by connecting a
「Fe-325」 probe, or a 「Fe」 series ｐrobe.

Measured a meanl value
When the measuring value results in largely off
the “0”, press CAL/DELETE + ▼ key to
delete the latest data out of measured values.
It indicates “—“to delete all data.

● Repeat a measuring process 1～20 times by pressing
the probe to 「Zero plate」. （A mean value is

Remove the probe from 「Zero plate」 displayed whenever a probe is pressed）

◆ When a measuring process reaches the 20th time, the
buzzer beeps, beeps 2 times and afterward the unit does not
accept any entry.

To adjust the displayed reading until it is correct relative

to thickness standared (in this case,100μm) use.
▲ , ▼ ｋｅｙ. Pressing ▲ , or, ▲ key interrupt the delete function of
CAL/DELETE ｋｅｙ．

Pressing ▲ key increases the displayed value.

Pressing ▼ key decreases the displayed value.
（Press and holding key goes fast forward）

Adjust the reading value to the Standard thickness.

－１２－

Ｃａｌ． ｗ． ｆｏ (Ｆｅ)

1０２

μｍ

Ｃａｌ． ｗ． ｆｏil (Ｆｅ)

1００

μｍ

【 ＣＡＬ． Ｗ． ｆｏｉｌ】

１．Ｍｅａｓｕｒｅ ｔｈｉｃｋ
－ｎｅｓｓ ｏｆ ｆｏｉｌ
ｓｅｖｅｒａｌ ｔｉｍｅｓ．

２．Ｗｉｔｈ ▼ ｏｒ ▲ ， Ａｄ

－ｊｕｓｔ ｔｏ ｔｈｉｃｋ

－ｎｅｓｓ ｏｆ ｆｏｉｌ

３．ｐｒｅｓｓ ＣＡＬ ｋｅｙ．

After adjusting the reading value to the Standard thickness, press CAL/DELETE key.

The buzzer beeps, 【Calibration Standard】 on the upper left disappears and
it returns to a measuring mode.

This is a measusring mode.

● It is correct that numerical values measured by pressing the probe a few toimes to the 「Standard theickness」 on
the 「Zero Plate」 indicates the thickness iin the neighborhood of the 「Standard thickness」.

● When the measured value results in largely off the 「Standard thicknesws」 please try again zteh calibration from

the beginning.

※ In case of using a dual type probe 「FN-325」, perform 「calibration by ferrous substrate」 and 「calibration by

nonferrous」 at the same time as possible as you can.

Note:

The lastest measured value replaces the previous ones and the new value of 「Calibration standard」 is stored.

－１３－

(Ｆｅ)

1００

μｍ

Substrate material

（1st layer）

（2nd layer）

（3rd layer）

（５）Zeroing in special cases (Multi-layers)

◎ In case of being painted as shown with multi-layers on the substrate there may be needs to measure thicknesses of

each layer. For example, measuring only the thickness of the 4

th

layer please zero as an assumed ZERO at the surface

of the 3

rd

layer stacked on the substrate.

Measuring the thickness of the 4

th

layer

by zeroing at the 3

rd

layer.

Coating films

◆ Releasing of special-case zeroing

When zeroing again on the substrate after having finished the above measurements and if the combined thickness of

3 coating layers from 1st to 3rd exceeds 50 μm, please zero the meter on the following procedures.

If the thickness of 3 combined layers is bellow 50μm, take the same procedure as usual zeroing to release.

● Prepare the identical material quality, plate size to a measuring object.
（This is a designated as a Zero Plate）

Press

ZERO key.

The buzzer emits a beeping sound. CAL/DELETE key changes to one data “deletion” function.

Press the probe to the Zero Plate.

The buzzer beeps, beeps, beeps.

－１４－

（4th layer）

【ＺＥＲＯ Ｃａｌ．】

１．Ｍｅａｓｕｒｅ ｓｕｂｓｔ

－ｒａｔｅ Ｓｅｖｅｒａｌ

ｔｉｍｅｓ．

２．ｐｒｅｓｓ ZERO ｋｅｙ．

Press ZERO key . －－ ①

The buzzer beeps.

Press

ZERO key. －－ ②

The buzzer beeps.

Press the probe to Zero plate.

The buzzer beeps.

The reading shows that it is process of zeroing

adjustments

Measured a mean value

When the measuring value results in largely off
the “0”, press CAL/DELETE + ▼ key to
delete the latest data out of measured values.
It indicates “—“to delete all data.

Remove the probe ｆrom 「Zero plate」 ● Repeat a measuring process 1～20 times by pressing

the probe to 「Zero plate」. （A mean value is

displayed whenever a probe is pressed）

To finish press Zero key ◆ When a measuring process reaches the 20th time, the

buzzer beeps, beeps 2 times and afterward the unit does not
accept any entry.

－１５－

ＯＦＦＳＥＴ．

Ｔｏ ｃｏｎｔｉｎｕｅ，

ｐｒｅｓｓ ZERO ｔｗｉｃｅ．

【ＺＥＲＯ Ｃａｌ．】

１．Ｍｅａｓｕｒｅ ｓｕｂｓｔ

－ｒａｔｅ Ｓｅｖｅｒａｌ

ｔｉｍｅｓ．

２．ｐｒｅｓｓ ZERO ｋｅｙ．

ＺＥＲＯ cａｌ (Ｆｅ)

1

μｍ

The buzzer beeps. It stopes the DELETE function of CAL/DELETE key.

「Zeroing」 has completed (the zeroing letters

disappeared) and it becomes possible totake measuring
and adjusting operations of this unit.

● It is correct that numerical values measured by pressing the probe to the 「Zero Plate」 indicates 「０」
or in the neighborhood of 「０」.
When the measured value results in largely off 「０」μｍ, please try again zeroing from the beginning.

● ［ＬＬＬＬ］ indicated on display during a time of zeroing means that the calibration point heavily deviates from
the standard please make sure that the material is not in process of being built with others and repeat the
zeroing in 2～4 times until a stable 「0」 is obtained.

Note：

The latest measured value replaces the previous ones and the new value of

「Zeroing」 is stored.

－１６－

(Ｆｅ)

０

μｍ

(６) 2-foil calibration when “Zeroing “ is difficult to perform.

In case zeroing is difficult to perform such as measuring the thickness of the film on the rough surface of Blast-steel plates,
a calibration method using 2 different thicknesses of standard plates pinching a thickness of the object is defined as
｢JIS K5600｣Standard. This calibration method complies to the regulations.

Caution

It is not possible to use both this calibration method and other calibration ones together, or mixing them together.
Should were the methods taken, measuring results could be the wrong values.

 Prepare the same blast-steel-plate in material as the objective base or, a rough face on non-ferrous base like

aluminum and 2 different thicknesses of Thickness standards.
Please choose the suitable difference of thickness standards from the list below.

Predicting film thickness Difference of thickness standard

～ ４９．９μｍ １０μｍ or over
５０．０ ～ ９９．９μｍ ２５μｍ or over
１００．０ ～ ４９９．９ μｍ ５０μｍ or over
５００ ～ ９９９ μｍ １９９μｍ or over
１．００ ～ ３．００ ｍｍ ０．５ｍｍ or over
３．０１ｍｍ ～ ２．０ｍｍ or over

Press and hold the ZERO key for 3 seconds.

CAL/DELETE key changes to one data “DELETE” function.

The buzzer beeps.

Stack the thickeｒ ｢Standard thickness｣ on the substrate and
press the probe on it.

The buzzer beeps whenever pressing the probe.

It reads that 2-foil calibration is under process.

It reads that a probe of 「FN-325」 or (Fe) series is connected to

measure on a ferrous substrate.

Mean value
In case a measured value abnormally deviates, a press of
CAL/DELETE key + ▼ deletes the latest entry and displays

the second latest.

All deletion indicates “ - “ on the reading.

- １７ -

【２-ｆｏｉｌ’ｓ ｃａｌ】

Ｍｅｓｅｕｒｅ ｔｈｉｎｎｅｒ

ｆｏｉｌ ｏｎ ｍｅｔａｌ

ｓｅｖｅｒａｌ ｔｉｍｅｓ．

Ａｆｔｅｒｗａｒｄｓ，

ｐｒｅｓｓ ZERO ｋｅｙ．

【2 - f. c. 】 (Ｆｅ)

２７

μｍ

●Try measuring plural times in range of 1―20 times by pressiing
the probe on a thinner 「Thickness Standard」.
( a mean value is indicated whenever the probe is pressed )

Press ZERO key afterwards. ◆When repeating measurements 20 times, the buzzer beeps, beeps

2 times and afterward ｔｈe unit does not accept any entry.

The buzzer beeps, beeps.

A press o f ▲ or ▼ key makes the buzzer
beep and a last mesuaring result appear on the reading.

Mean value

Equate this reading value with thickness Standard (in this example, 25μm)

by pressing ▲ or ▼ key.

A press of ▲ key increase a reading value.

A press of ▼ key decreases a reading value.
(Press and holding key goes fast forward)

Equate this value with the Thickness Standard.

After equating the reading value with the thickness standard , press ZERO key.
The buzzer beeps.

- 1８–

【２-ｆｏｉｌ’ｓ ｃａｌ】

Ｕｓｅ ▲ ｏｒ ▼ ，

Ｔｏ ｓｅｔ ｆｏｉｌ

ｔｈｉｃｋｎｅｓｓ．

Ａｆｔｅｒｗａｒｄｓ，

ｐｒｅｓｓ ZERO ｋｅｙ．

【2 - f. c. 】 (Ｆｅ)

２５

μｍ

【2 - f. c. 】 (Ｆｅ)

２７

μｍ

Press the probe on the thicker 「Thickness Standard」 stacked on the

substrate.

The buzzer beeps whenever pressing the probe.

Mean value

In case the measured value abnormally deviates from the

thickness standard, a press of CAL/DELETE + ▼ key deletes

the latest entry and show s the second latest value on the reading.

All deletions indicates “－” on the reading.

●Try measuring in the range of 2～10 times by pressing
the probe on the thicker 「Thickness Standard.」.

(A mean value is indicated whenever the probe is pressed)

Press ZERO key after completion of measuring processes.

The buzzer beeps, beeps.

◆When repeating measurements 20 times, the buzzer
beeps, beeps and the unit does not accept any entry.

Press ▲ or ▼ key and the buzzer beeps ,and
mean values up to the last measurement are displayed.

- 1９ -

【２-ｆｏｉｌ’ｓ ｃａｌ】

Ｍｅｓｅｕｒｅ ｔｈｉｃｋｅｒ

ｆｏｉｌ ｏｎ ｍｅｔａｌ

ｓｅｖｅｒａｌ ｔｉｍｅｓ．

Ａｆｔｅｒｗａｒｄｓ，

ｐｒｅｓｓ ZERO ｋｅｙ．

【2 - f. c. 】 (Ｆｅ)

１９８

μｍ

【２-ｆｏｉｌ’ｓ ｃａｌ】

Ｕｓｅ ▲ ｏｒ ▼ ，

Ｔｏ ｓｅｔ ｆｏｉｌ

ｔｈｉｃｋｎｅｓｓ．

Ｔｈｅｎ，ｒｅａｄｙ ｆｏｒ

ｍｅａｓｕｒｅ．

A press of ▲ or ▼ key makes the buzzer beeps,
Indicating the last measured value on the reading.

Mean value

Equate the displayed value with the thickness of Thickness Standard
(in this example 200 μm) by pressing ▲ key.

A press of key increases a reading value.

A press of key decrease a reading value.
(Push and holding key goes fast forward.)
Equate the value with the Thickness Standard.

After adjusting to thickness of the Thickness Standard, Press ZERO key.
Then the buzzer beeps, beeps.、beeps.

This is on display for about 0.5 seconds.

The buzzer beeps.

Measuring mode

－２０－

【2 - f. c. 】 (Ｆｅ)

１９８

μｍ

(Ｆｅ)

２００

μｍ

▲

▼

【２-ｆｏｉｌ’ｓ ｃａｌ】

Ｒｅａｓｙ ｆｏｒ

ｍｅａｓｕｒｅ．

【2 - f. c. 】 (Ｆｅ)

２００

μｍ

● It is correct that numerical values measured by pressing the probe to the 「Thickness Standard」 placed
on the substrate like a blast steel plate ndicate 「０」 or in the neighborhood of 「０」.

● When the measured value results deviate largely from 「Thickness Standard」, please try again performing
2-folils calibration from the beginning.

Note:

The new entry replaces the previous one and the last data measured with 「2-foils calibration」 is stored.

- ２１-

（7） How to delete calibration

Take the following procedures to delete calibration when the reading on the screen is locked or after
batteries replaced or when it becomes impossible to process 「Zeroing」、「Calibration Standard」（CAL）.

When holding ZERO key , press ▼ key.

The buzzer beeps, beeps.

※Switch Power to Off when intrruptting the deletion of

calibaration.

Press ▼ key.
The buzzer beeps, beeps.

The deletion of calibration is over.

The buzzer beeps, beeps.

It becomes possible for this unit to take

measurements and adjustment procedures.

After deleting,, take 「Zeroing」,「Calibration standard」
procedures proceeding to measuring.

－２２－

ＥＲＡＳＥ?

（ＺＲＥＯ ｃａｌ．）
＆
（Ｃａｌ．ｗ．ｆｏｉｌ）

ＥＲＡＳＥ

（Ｃａｌ． ｄａｔａ）

（AUTO）

－

μｍ

Measuring

Hang the meter through a strap over your wrist never to drop it.
When pressing the probe against the object,

the buzzer beeps.

The reading shows that the unit is set tomeasure

on a substrate material of Ferrous by connecting
a 「Fe-325」 probe, or a 「Fe」 series ｐrobｅ.

A measured result is indicated.

Each time a probe is pressed to an object the buzzer beeps and the measuring result is indicated.

◆Measuring of Auto-selection by 「FN-325」

(1) Ferrous substarate ・・・・・・・・・・・・・・・・・・・・・・・・・・・ Measuring of film thickness at Fe mode

(2) Non-ferrrous substarate ・・・・・・・・・・・・・・・・・・・・・・ Measuring of film thickness at NFe mode
(3) Ferrous on Non-ferrous layered substarate ・・・・・・・・ Measuring at Fe mode regadress of Fe thickness

（１） （２） （３）

(4) Non-ferrous on ferrous layered substrate
(4-1) Layered thickness non-ferrous and ferrous, 3. 5 mm or less ・・・・measure thickness of layered non-ferrous and film
(4-2) Layered thickness non-ferrous and ferrous, 3. 5 mm or over ・・・・measure thickness of film

(4-1) (4-2)

Note: ● 「HHHH」 is indicated in a between-area of 2 diferent layers.

● In case of adjusting by 「Calibration Standard」 foill on Ferrous substrate, 「Calibration Standard」 made of
Non-ferrous such as Be, Cu can be used.

● In case of an example of (4-1）, thickness of film only can be measured at 「Non-ferrous」 mode.

－２３－

Film

Ferrous

Film

Non-ferrous

Film

Ferrous

Non-ferrous

Film

Non-ferrous

Ferrous

Film

Non-ferrous

Ferrous

(Ｆｅ)

１２５

μｍ

3.5mm or over

3.0 mm or less

Function switching

（１）Switching to Non-Interrupt Measurement Mode

Switch to「non-interrupt measurement mode」when
it is necessary to slide a probe along the measuring

surface of a substrate as illustrated on the right figure
for continuous measurements of films.

A measuring value is indicated and stored

each time a probe is pressed in a normal state.

Hold ZERO key and press ▲ key.

The buzzer beeps, beeps 2 times.

This unit has turned into 「non-interrupt measurement mode」. Measurements can be made about

0.5 second intervals and the data is indicated with a beeping sound.

↓ ↑
Traces of probe
↓ ↑
→ → → → → →

- 751

- 751

837 125 124 126 123 124 751

Measuring values on display（indicated successively each 0.5 second interval）

 The non-interrupt function is stored when switching Power to OFF, and can be maintained until

re-activating to switch to ON.

－２４－

Substrate

Substrate

(Ｆｅ)

１２５

μｍ

Caution

Note that this measuring method may damage the measuring surface or the probe tip due to

sliding frictions. Please try fewer to take this method to minimize the frictions.

《Returning to the beginning》

To return 「non-interrupt measurement mode」 to the beginning take the same procedures as

at the initial setting.

Hold ZERO key and press ▲ key.

The buzzer beeps, beeps 2 times.

「non-interrupt measurement mode」 has been released and returned to the beginning.

↓ ↑
Trace of probe
↓ ↑
→ → → → → →

- 125

- 125

- 125 125 125

125 125 125

↑

Measured values are stored until a next measurement is taken.

－２５－

Substrate

（２）Switching to Resolution

To inspect precisely a thickness up to 500μｍ it is possible to take solution measurements

by switching to a 0.1μｍ（0～400μｍ） unit , to a 0.5μｍ（400 ～ 500μｍ） unit.

In this case it changes resolution units by taking the following procedures.

● Switch Power to Off.

● Hold CAL/DELETE key and press ON/OFF key for 3 seconds or over until the buzzer beeps in the
following.

The buzzer beeps, beeps.

Indicated :

0～400μｍ by the 0.1μｍ unit,

400μｍ～500μｍ by the 0.5μｍ unit.

■This function is not released even if switching Power to OFF.
To return to the beginning, take procedures of “Rreturning to the beginning” described afterward.

《Returning to the beginning》

To return 「0.1μｍ, 0.5μｍ」 display resolution to the beginning take the same procedures as the above.

● Switch power to OFF.

● Hold CAL/DELETE key and press ON/OFF key for 3 seconds or over until the buzzer beeps
in the following.

The buzzer beeps, beeps.

No indication under a decimal point

(The data is rounded off to nearest whole digit.)

－２６－

(Ｆｅ)

１２５．２

μｍ

(Ｆｅ)

１２５

μｍ

（３） Setting of Auto-Power-Off

When no entry of key operations and measuring procedures for 3 minutes, the unit switcehes automatically

to Off to save battery. This function can be released by yhe following operations.

No entry for 3 seconds continues, and then the buzzer beeps.

The message is indicated for about 5 seconds.

The buzzer beeps, and the unit is switched to off.

● To release Auto-Power-Off function
Switch to Off when Power is On.
While pressing and holding ▲ key, press ON/OFF key for 5 seconds or over.

The buzzer beeps., beeps.

It indicates 5 seconds.

It returns to a measurable mode.
Power switches to Off when ON/OFF key is pressed.

■This fuction is kept even if Power source switched to OFF.
To enable it, take the operation procedure of “To enable Aoto-Power-OFF function”.

－２７－

Ａｕｔｏｍａｔｉｃ

Ｓｗｉｔｃｈ ＯＦＦ

【ＤＩＳＡＢＬＥ】

ＰＯＷＥＲ

ＯＦＦ

Ｔｅｒｍｉｎａｔｉｎｇ

ｐｈａｓｅ

（Ｆｅ）

－

μｍ

● To enable Auto-Power-Off function

Switch to Off when Power is On.

While pressing and holding ▲ key, press ON/OFF key for 5 seconds or over.

The buzzer beeps., beeps.

It indicates for 5 seconds.

It returns to a measurable mode.

Auto-Power-Off function can be functioned.

When no processing of any entry and key operation lasts for about 3 minutes,

the buzzer beeps and the unit is switched to OFF.

■This fuction is kept even if Power source switched to OFF.
To disable it, take the operation procedure of “To disable Aoto-Power-OFF function”.

■AC adaptor is equipped with SWT-7100Ⅲ as accessory, and even when it is used, the Auto-Power-OFF function
is effective.

－２８－

Ａｕｔｏｍａｔｉｃ

Ｓｗｉｔｃｈ ＯＦＦ

【ＥＮＡＢＬＥ】

（Ｆｅ）

－

μｍ

（４） Switching to a corresponding mode to substrate when using FN-325 probe

The unit is set to 「AUTO」 mode when FN-325 probe is connected. (EX-factory setting)

Setting can be switched in the procedures below.
And, modes change as shown below.

【EX-factory setting】

Ferrous/non-ferrous suto-selection mode

Press and hold CAL/DELETE key for 3 seconds.

The buzzer beeps, beeps.

Moving to a ferrous exclusive mode.

Press and hold CAL/DELETE key for 3 seconds.

The buzzer beeps, beeps.

Moving to a non –ferrous mode.

By pressing and holding CAL/DELETE key it for 3 seconds it switches

AUTO → Fe → NFe → Auto →・・・・.

Note: Exclusive Fe and NFe probes do not correspond to this item (4).

－２９－

（ＡＵＴＯ）

－

μｍ

鉄材

－

μｍ

－

μｍ

Ｆｅ

NＦｅ

（５） ON/OFF of Backlight

This unit has a Backlight function.
The Backlight can be used at the place which is dark and difficult to read messages on display.

● Lighting the Backlight
Press and hold ▲ key for 3 seconds

It is shown when the backlight is ON

● Lighting out the Backlight
Press and hold ▲ key for 3 seconds

Ｔｈｅ ｂｕｚｚｅr beeps, beeps. and the backlight goes on.

The mark and backlight go off.

※This function is kept even when Power source switched to OFF.

－３０－

（ＡＵＴＯ）

－

μｍ

（ＡＵＴＯ）

－

μｍ

Transferring data （SWT-7100Ⅲ）

Transfer data to a PC (personal computer) by using a ＵＳＢ cable
Refer to separately attached information for arrangements to install a driver into a PC side.

※Data is not transferred when the unit is set to 「Non-intrerrupt measuring mode」.
Please make sure that the unit is set to 「General measuring mode」

Outright transferring measured data

● Prepare for a ＰＣ side.

● Connect a ＵＳＢ cable to a ＰＣ.

● Data is sent out with a beeping sound whenever a measurement is taken.

Connect USB cable to this outlet. The other part is connected to PC.

－３１－

(Ｆｅ)

１２５

μｍ

Note to improve measuring accuracy

① Zero plate

Prepare the same material, thick and sized plate as the measuring object for zeroing and calibration
standard (CAL). Different materials may not bring about correct measuring results.
※As accessories to probe, “zero plates for zeroing” are for testing purpose only.

Select a most optimal zero plate to meet actually measuring objects.

② Thickness standard (foils)

Take calibration standard measurements using a Thickness standard which is thicker or as thick as
the measuring films.

※Use of a calibration standard with a deviant thickness may cause errors.

Replace worn-out or bent plates with new ones. In case non-accessorized plates are necessary
(over 16μm), contact a local sales office.

③ Quality of films to be measured

Magnetic metal contained films can not correctly be measured. In case of measuring elastic films, place a standard
plate of 30～50 μm thick on the object and subtract the thickness from the measuring value to avoid errors to
becaused by elastic dents.

④ Measurements of edges or angles

Magnetic fields in the neighborhood of the edges/the angles of a measuring object become uneven.
15～20 mm closer part to the center of the object shall generally be measured.
Pay attention to protruded part, curved part or unexpectedly deformed part.

⑤ Measurements of rough faces

Roughness of a substrate, a measuring face affects measuring results.
Take a mean value by measuring several places at a time.

⑥ Measurements of stretched part on faces

In some case stretched, rolled part occurred on a substrate, which may cause measuring errors.
Take a mean value by measuring several places at a time.

⑦ Temperature

Operating temperature range is 0～40 ℃ Especially difference between a main unit and a probe
causes measuring errors.

⑧ Residual magnetism, stray magnetic fields

Pay attention to transportation method of electromagnets, residual magnetism on substrates or arc welding,
those of which emit strong magnetic fields to cause measuring errors.

－３２－

BAT

Trouble Shooting

Before contacting us please check with the following points.

Symptoms Points to check Measures to be taken

No response upon press of Are batteries worn out? Replace them with new ones (2 ea.)
ON/OFF key.

No response after replacing Something wrong inside a meter Contact us for repair

batteries and pressing a key

Batteries is shorting. They can be used for a while.
Prepare for new batteries.

BAT

Batteries have worn out. Replace them with new one

Out of batteries Replace new batteries

《Power ＯＦＦ》

Started pressing probe to object Hold probe in air, keeping it away

soon after switching on. off objects, metals during a time

of the message on screen .

《Power ＯＦＦ》

Press ON/OFF key without Press ON/OFF key after being sure
connecting probe of connecting probe.

《Power ＯＦＦ》

－３３－

BATTERY

is dead!

Replace all of them with

NEW BATTERY.

ERROR！

Hold the probe

in the air.

ERROR！

Connect a probe

before

switched on.

－３４－

Symptoms Points to check Measures to be taken

《Power OFF》

Something wrong with probe Contact us for repairs

《Power OFF》

Something wrong with probe,
and main unit

Contact us for repairs

Unable to transfer data. ① Faulty connection of USB cable.

or broken wiring.

② PC side is not ready to operate.

① Confirn to connect cable firmly.

② (1) Install attached CD

correctly.

(2) Set Comport No.correctly.

Sudden interruption of data
transfer.

① Something wrong with PC side.
② Nothing wrong with PC side

➝ something wrong with main

unit, cable.

① Check if something wrong with

PC side.
② Contact our sales office for
Repair.

TROUBLE！

The probe and the
main unit may have
trouble.
Repairing needed.

TROUBLE！

The probe may
have trouble.
Change it to
the other one.

Specifications

◆ Unit

Items Applications

Model names Dual ( electromagnetic／eddy current) SWT－7000Ⅲ, SWT-7100Ⅲ

Display method Graphic LCD （data ・ message）, Backlight

Ranges Depending on optional probes

Calibrations

（CAL）

2 points calibration type Zeroing ： for substrate
Calibration point : substrate and standard thicknesses

Additional functions

① Switching measuring modes （hold／non interrupt）
② Auto Power Off （3 min.）, releasing and reactivating
③ ON/OFF of backlight
④ Switching display resolutions
⑤ Setting exclusive mode corresponding to substrate (only connecting

with FN-325 probe).

⑥ USB connections （SWT-7100Ⅲ only）

Keys

ON/OFF 、 ZERO 、 ▲ 、 ▼ 、 ＣＡＬ/DELETE

Power

3Ｖ ＤＣ （LR6×2） 、SWT-7000Ⅲ, SWT-7100Ⅲ, Continuous operation
hours about 50 hours
(SWT-7100Ⅲ : with exclusive AC adaptor)

Operating Temperature 0 ～ 40 ℃ （Non-condensing）

Accessories

Dry battery, Carrying case、
7100:Ⅲ AC adaptor , USB cable, USB driver (CD)

Optional

For ferrous substrate probe（Ｆｅ）, for nonferrous substrate probe（ＮＦｅ）,

for either ferrous or non-ferrous substrates probe（FN-325）

Dimensions 72（Ｗ） × 32（Ｈ） × 156（Ｄ）mm

weight 200g

－３５－

◆ Probe (option)

Models FN-325

Methods Dual electromagnetic／eddy current （Auto-selection substrate）

Ranges Ferrous: 0～3.00mm, Nonferrous: 0～2.50mm

Display Solutions

Both ferrous/nonferrous 1μm: 0～999μm
by switching
Both ferrous/nonferrous 0. 1μm: 0～400μm、
Both ferrous/nonferrous 0. 5μm: 400～500μm
Ferrous substrate 0. 01mm:1. 00～3. 00mm
Nonferrous substrate 0. 01mm: 1. 00～2. 50mm

Accuracies
(on flat face)

Both ferrous/nonferrous 0～100μm: ±1μm
or within ±2% the reading value
Ferrous substrate１01μm～3. 00mm: within ±2%
Nonferrous substrate 1. 00～2. 50mm: within ±2%

Probes One point contact constant pressure type, with v-cut shape, φ13×52mm

Options V type probe adaptaors※

Accessories Standard thickness foils. Zero plate for testing (for ferrous/nonferrous)

Measuring objects

Ferrous substrate: Coating, lining,, thermal spray film, plating (except

electrolyte nickel plating), etc. on magnetic
metal substrates like ferrous, steel, etc.

Nonferrous substrate: Insulated films etc. on non-magnetic metal

substrates like aluminum, copper, etc for comparatively
general measuring objects.

※ V type probe adaptor has 3 differnet sizes, （for φ5 or less, φ5～10, φ10～20）.

－３６－

◆ Probe （option）

Models

Fe－2．5※

／Fe－2．5Ｌ

Ｆｅ－2．5LwA Ｆｅ－10 Ｆｅ－20

Methods Magnetic inducing type

Ranges 0～2．50ｍｍ 0～10ｍｍ 0～20ｍｍ

Display
resolitions

1μｍ：0～999μｍ

Switching to

0．1μｍ：0～400μｍ、

0．5μｍ：400～500μｍ

0．01mm：1．00～2．50mm

1μｍ：0～999μｍ
0．01mm：1～10mm

1μｍ：0～999μｍ
0．01mm：1～5mm

0.1mm：5～20mm

Accuracies
（on flat face）

0～100μｍ：±１μｍ

or within ±2％ the reading value

101μｍ～2．50ｍｍ： within ±2％

0～3mm：±（5μm+ 3％ the reading value）

3.01mm or over： within±3％ the reading value

Probes

One point contact

constant type, V cut

2.5：φ13×48mm

2.5L：18×23×67mm

One point contact constant

type,

Measuring part：20×57mm

Full length：550～1.550mm

（flexible）

One point contact

constant type, V cut

φ18×47mm

One point contact

constant type, V cut

φ39×59mm

Option

Ｖ type probe adaptor

※2

／－

－ － －

Accessories

Standard thickness foils

Zero plate（ferrous）

Standard thickness foils、

Zero plate（ferrous）

Carrying case

Standard thickness foils 、Zero plate（ferrous）

Measuring
objects

Coating, lining, thermal
spray film, plating
(except electrolyte
nickel plating), etc. on
magnetic metal
substrates like ferrous,
steel, etc.

Coating, lining 0n high/hard
t-to-reach/remote place on
magnetic metal substarate
like ireon, steel.

On magnetic metal substrates like iron/steel

For relatively thick
objects

For thick objects

※Probes are heat-resistant （about 200 ℃）. （Ｆｅ-2.5）
※２： V type probe adaptor has 3 differnet sizes, （for φ5 or less, φ5～10, φ10～20）.

◆For details please contact us for other various types of probes.

－３７－

◆ Probe （option）

Models Fe－0.6Ｐｅｎ

ＮＦｅ－2．0※

／ＮＦｅ－2．0Ｌ

ＮＦｅ－0．6 ＮＦｅ－8

Methods Magnetic inducing type Eddy current type

Ramnges 0～600μｍ 0～2．00ｍｍ 0～600μｍ 0～8．00ｍｍ

Display
solutions

1μｍ：0～600μｍ

Switching to

0．1μｍ：0～400μ
ｍ、
0．5μｍ：400～500μ
ｍ

1μｍ：0～999μｍ

Switching to
0．1μｍ：0～400μｍ、
0．5μｍ：400～500μｍ
0．01mm：1．00～2．
00mm

1μｍ：0～600μｍ

Switching to
0．1μｍ：0～400μｍ、
0．5μｍ：400～500μｍ

1μｍ：0～999μｍ
0．01mm：1～8mm

Accuracies
（on flat face）

0～100μｍ：±１μｍ

or within ±2％
the reading value

101μｍ～600μｍ：

Within ±2％

0～100μｍ：±1μｍ

Or within ±2％
the reading value
101μｍ～：2．00ｍｍ

Within ±2％

0～100μｍ：±1μｍ

Or within ±2％
the reading value

101μｍ～600μｍ：

Within ±2％

0～3mm：±（5μm+

3％ the reading

value）

3.01mm or over：
within±3％ the

reading value

Probes

One point contact

constant type, V cut

φ5.6×94mm

One point contact
constant type, V cut

2.0：φ13×47mm

2.0L：18×23×67mm

One point contact

constant type, V cut

φ11×48mm

One point contact

constant type, V cut

φ35×61mm

Options －

V type probe adaptor※２
／―

－ －

Accessories

Standard thickness
foils,
Zero plate for testing
（ferrous）

Standard thickness foils, Zero plate for testing（nonferrous）

Measuring
objects

Coating, lining, thermal
spray film, plating
(except electrolyte
nickel plating), etc. on
magnetic metal
substrates like ferrous,
steel, etc.

Insulated films etc. on non-magnetic metal substrates like aluminum, copper

For relatively general

measuring objects

For high stability like

narrow bars, tubes,

minute piece, etc.

For elatively thick

oobjects

※Probes are heat-resistant （about 200℃）. （ＮＦｅ-2..0）
※２： V type probe adaptor has 3 differnet sizes, （for φ5 or less, φ5～10, φ10～20）.

◆For details please contact us for other various types of probes.

－３８－

Reference (Principle of measurements)

●

Electro-Magnetic type

When metals approach to AC- magnetic fields emitted from probe, the metal and the magnet pull each other.
It makes the pulling force stronger as they come closer.
In other words, it makes the magnetic density higher as they
come closer. On the contrary, it weakens the magnetic
density as they move away from each other.
This symptom means that magnetism emitted from probe has
Higher Transferability when they come closer, and lower
Transferability when they move away from each other.

These levels of transferability of the magnetism co-relate

with thicknesses of films coated on substrates.
By analyzing correlations of transferability/less transferability
(Reluctance), and thicknesses of the films on the substrates,
the correlated values can be converted to the thickness,
actually by measuring the Reluctance to be processed.
Because it is difficult to observe and measure magnetic volumes,
it is necessary that the Reluctance volumes be converted

to electric volumes using coils and methods of the Principle of
Electromagnetic Induction so that the measured values can
be processed and converted to the thickness values.

●

Eddy Current Type

The eddy current is induced on the surface of metals when metals approach to alternating current fields emitted from probe.

As the metal comes closer to the probe, the eddy current increases and the magnetic field density becomes high.

On the contrary, as the metal move away from the probe, the eddy current decreases and the magnetic density becomes

low: Correlations of between density of magnetic field and film thicknesses on the substrate are analyzed beforehand.
It measure the thicknesses by converting to the thickness value from the
magnetic density measured through the above correlations.
Because it is difficult to observe and measure the density of a magnetic
field, it is necessary that a coil be put in magnetic fields
and converted to electric volumes for measurements

using the Principle of Electromagnetic Induction

so that the measured value can be processed and
converted to the thickness value. Generally in the eddy
current type, it varies in measurement range on non­ magnetic substrate by dividing substrates by a high-wave
transferable like Alumi and Copper and non-transferable
like irons to optimize the measurement methods.

―３９－

Products sold:
Sales of Coating thickness meter, Pinhole detector,
Condensator, Viscosity cup, Moisture meter,

Needle detector, Iron piece detector

Manufacturer:
Sanko Electronic Laboratory Co., Ltd.

Tokyo branch：Shibata Bldg., 2-6-4, Uchikanda, Chiyoda-ku, Tokyo 101-0047, Japan
Tel [phone] Fax [phone]
Osaka branch：Konishi Bldg., 2-3, Sugawara-cho, Kita-ku, Osaka 530-0046, Japan
Tel [phone] Fax [phone]

Sendai Branch：Bonuer Est, 72-2 Teppo-cho, Miyagino-ku, Sendai 983-0861 Japan

：

Tel [phone]-：7030 Fax [phone]

Nagoya branch：Meihoku Bldg., 3-11-27, Kinjo, Kita-ku, Nagoya 462-0847, Japan
Tel [phone] Fax [phone]
Fukuoka branch：11-11 Naraya-cho, Hakata-ku, Fukuoka 812-0023, Japan
Tel [phone] Fax [phone]
Head office：1677 Hisasue, Takatsu-ku, Kawasaki 213-0026, Japan
Tel [phone] Fax [phone]

URL http://www.sanko-denshi.co.jp E-mail [e-mail]