Kusam-meco KM 8041 User manual

17, Bharat Industrial Estate, T. J. Road, Sewree (W),
Mumbai-400015. INDIA
Sales Direct: 24156638 (022)2412 4540, 2418 1649 2414 9659
E-mail : [email protected], Website : www.kusamelectrical.com,
www.kusam-meco.co.in
Tel.: Fax:
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LIST OF PRODUCTS
ULTRASONIC THICKNESS
GAUGE
MODEL - KM 8041
OPERATION
MANUAL
OPERATION
MANUAL

ULTRASONIC THICKNESS
GAUGE
MODEL - KM 8041
CONTENTS
1) Preface........................................
2) Safety information........................
3) Function & Features....................
4) Specifications..............................
5) Mounting battery & probe............
6) The method of usage...................
7) Calibrating Meter.........................
8) Notices.........................................
9) Test certificate..............................
10) Warranty.....................................
01
01
01
02
02
02
05
05
07
08
KM 8041
Ultrasonic
thickness gauge
®

4) Specifications
=The meter has been designed according to
EMC directive: 2004/108/EC
=Ultrasonic wave frequency : 5MHz
=Digital display : 4 digits
=Measurement range :1. 2mm ~ 220mm (steel).
=Tubes measurement : Minimum f20mm*3mm.
=Ultrasonic wave velocity : 1000~9999 M/s
=Resolution : 0.1mm.
=Accuracy : ± (1%H +0.1mm).
=Measurement rate : 0.6 second.
=Power supply : AAA, 1.5V*3
=Operating temperature : -10~+50°C
=Storage temperature : -40~+70°C,
-40~+158°F
=Dimensions : 165(L) x 60(W) x 30(H)mm.
=Weight : approx 210g (including battery and
probe).
=Accessories : Probe, operating manual,
batteries.
4) Mounting battery and probe
Remove the battery cover on the back and put in
three 1.5V AAA batteries according to the mark on
the shell to insure putting batteries in correctly, and
then close the battery cover. Insert two plugs of the
probe into two sockets on the top of the meter.
5) The method of usage
=Press button “On/Off”, the meter selects material
1 automatically, and displays the velocity of
ultrasonic wave in material 1.
01 02
1) Preface
Please read the following information carefully
before using the meter. The ultrasonic thickness
gauge has been designed to measure the material
thickness that calipers can’t measure, such as boiler,
pressure vessels, armor of tank, ship hulls, glass
wall, tubes and so on.
2) Safety information
According to European Union’s CE safety
norms
=Ambient temperature : -10 ~ +50°C, +14 ~ 122°F
=Storage and transport temperature : -4.0 ~ +70°C
Environment conditions :
Maintenance & save:
Do not clean the meter using alcohol and impregnant
if you do not use it for a long time, please take out
the batteries and place the instrument in a dry
surrounding.
3) Function & Features
=Measuring thickness of various good ultrasonic
wave conductors as steel, aluminium, copper,
glass etc.
=Ultrasonic wave velocity or thickness display
=Manual material selection
=Ultrasonic wave velocity adjustable
=Thickness unit “mm” or “inch” optional
=Ultrasonic wave velocity testing
=Coupling state display
=Shut down manually or automatically
=Low battery voltage indication
=Built-in calibration metal block (4.0mm)
=Software calibrating to insure high reliablity

=When take the probe out from the measured object,
the coupling symbol disappears, but thickness keeps
displaying.
=At the state of displaying thickness and do not
measure, Press button “mm/inch”, thickness unit
“mm” changes into “inch” or contrarily.
=At the state of displaying thickness and do not
measure, Press button “Select”, to display
ultrasonic wave speed, thickness will disappear.
=Material a-e (digit 13~17) are offered to user to
set own material. Press button or , its velocity
is adjustable
D) Press button “Select”, the ultrasonic wave
velocity of user’s material will appear. When
shut the meter down, the ultrasonic wave velocity
will be saved into a memory.
8) To set power off :
When the meter is working. Pressing button On/Off
will get shutdown immediately.
=If user do not know the ultrasonic wave velocity of
own material, can test it by oneself.
A) Make a block with measured material (the more
thick the block, the more exact the result is),
measure its thickness by a calipers carefully.
B) Select anyone of material a~e, and measure its
thickness display steady, take the probe out from
the block.
C) Press button or to change the digits until
it is equal to the value measured by the calipers.
9) Automatic shutdown :
When the meter is ON, and stop to press button
for five minutes, shutdown will occur automatically.
03 04
=Press button “Select” to choose a material you
will measure. A number displays on the bottom of
the screen to indicate the material. The numbers
correspond to the material listed in table (1). Smear
a little of coupling paste on the surface of the
measured object, put the probe on and press it. A
coupling symbol would appear if coupling is all right.
Synchronously the thickness of the measured object
would display instead of ultrasonic wave velocity. If
Coupling isn’t good, the coupling symbol will not
appear and can not get thickness.
Table (1)
Digit Material Ultrasonic wave speed
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
14)
15)
16)
17)
Iron/Steel
Aluminium
Copper
Brass
Gold
Silver
Zinc
Stannum
Glass
Plastic
Toughened tile
Water (20°C)
Material a
Material b
Material c
Material d
Material e
5900 M/S
6320 M/S
4700 M/S
4430 M/S
3240 M/S
3600 M/S
4170 M/S
3320 M/S
5850 M/S
2250 M/S
5580 M/S
1480 M/S
6500 (user adjusting)
5500 (user adjusting)
4500 (user adjusting)
3500 (user adjusting)
2500 (user adjusting)

=To measure tubular object, change the direction
of the probe for 90°, look for the minimum vaue
=For rough surface, don’t press the probe when
turning it or slipping it, to protect the probe.
=When battery voltage is too low to work, a battery
symbol appears on the screen. It reminds you to
change new batteries
=When you do not use the meter for a long time,
please take out batteries to avoid damaging the
meter by electrolyte.
=Don’t store the meter in a high temperature or wet
place.
=After power off, to turn power on again, wait for two
seconds.
=Rough surface may affect test, Burnish it by sand
paper, and then measure.
=When the surface has thick paint, scrape it off
and then measure.
=Coupling paste is necessary for test, it can
eject air out off the gap between the probe and
the object to get ultrasonic wave to pass. For
rough surface, more viscous coupling paste
must be used, such as lubricating oil.
05 06
“Adjust” can release. You can see the bars
disappear gradually. Finally “4.0mm” displays, the
meter will be calibrated.
7) Notices
=When measuring thickness under 2.5mm,
sometimes an error named as “double refraction”
may occur. Another error is named as “pulse
envelope or cycle jump”. They bring on a bigger
result than actual thickness. So when measuring
thin object, should do it repeatedly to look for the
least value. If necessary, make a thin block to
compare measuring result.
=The ultrasonic wave velocity listed in Table (1) is
for reference. Because the component of your
material may not be identical with that listed in
Table (1), user had better make sample block to test
the wave velocity in it.
=It is not a good ultrasonic wave conductor to the
poriferous material, or uncompacted material, it
can not be measured by the meter. Casting has
large crystals, if it surface is rough; it is difficult
for user to test thickness by the meter.
6) Calibrating the meter
=When changing a new probe, or the probe is
abrased or the meter is used for a long time, you
need to calibrate the meter by yourself, the method
is as follows: Power on the meter, smear a little of
coupling paste on the surface of the metal block
built -in the shell of the meter. Put the probe on and
press it, when coupling symbol appears, press
button “Adjust” for two seconds, four bars appear
on the screen. Keep pressing the probe button

07
WARRANTY
Each “KUSAM-MECO” product is warranted to be free from
defects in material and workmanship under normal use &
service. The warranty period is one year (12 months) and
begins from the date of despatch of goods. In case any defect
occurs in functioning of the instrument, under proper use,
within the warranty period, the same will be rectified by us free
of charges, provided the to and fro freight charges are borne
by you.
This warranty extends only to the original buyer or end-user
customer of a “KUSAM-MECO” authorized dealer.
This warranty does not apply for damaged Ic’s, fuses, burnt
PCB's, disposable batteries, carrying case, electrodes,
probes, cables or to any product which in “KUSAM-MECO’s”
opinion, has been misused, altered, neglected, contaminated
or damaged by accident or abnormal conditions of operation
or handling.
“KUSAM-MECO” authorized dealer shall extend this warranty
on new and unused products to end-user customers only but
have no authority to extend a greater or different warranty on
behalf of “KUSAM-MECO”.
“KUSAM-MECO’s” warranty obligation is limited, at option,
free of charge repair, or replacement of a defective product
which is returned to a “KUSAM-MECO” authorized service
center within the warranty period.
THIS WARRANTY IS BUYER’S SOLE AND EXCLUSIVE
REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
ANY IMPLIED WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE. “KUSAM-
MECO” SHALL NOT BE LIABLE FOR ANY SPECIAL,
INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES
OR LOSSES, INCLUDING LOSS OF DATA, ARISING FROM
ANY CAUSE WHATSOEVER.
All transaction are subject to Mumbai Jurisdiction.
17, Bharat Industrial Estate, T. J. Road, Sewree (W),
Mumbai-400015. INDIA
Sales Direct: 24156638 (022)2412 4540, 2418 1649
Fax:[phone] E-mail : [email protected],
Website : www.kusamelectrical.com,
www.kusam-meco.co.in
Tel.:
08
QC
PASS
KUSAM-MECO
TEST CERTIFICATE
ULTRASONIC THICKNESS GAUGE
MUMBAI
This Test Certificate warrantees that
the product has been inspected and
tested in accordance with the published
specifications.
MODEL NO. __________
KM 8041
SERIAL NO. ___________
DATE: ___________
ISO 9001
REGISTERED