Major tech MT155 Manuel utilisateur
INSTRUCTION MANUAL
COATING THICKNESS METER
MT155
Thank you for your purchase of the Coating Thickness Tester. The MT155 is a
compact and handy gauge specifically designed for non-destructive, fast and
precise coating thickness measurements. The principal application is for
corrosion protection. It is ideal for manufacturers, for offices, specialist
advisers, for paint shops, electroplaters, for the chemical, automobile,
shipbuilding, aircraft industries and for light or heavy engineering. The gauge is
suitable for laboratory, workshop or outdoor use. The probe can work on both
principles, magnetic induction or the eddy current principle. Only 1 (one) probe
is required for coating measurement both on ferrous and non-ferrous metal
substrates. It is adaptable to specific tasks for instance they can be used on
special geometries or on materials with special properties. You can select the
probe mode via the MENU system.
Introduction
Features
ŸMeasured Coatings:
1. Non-magnetic coatings (e.g. paint, zinc) on steel;
2. Insulating coatings(e.g. paint, anodizing coatings) on no-ferrous metals
ŸEasy to operate MENU
ŸMemory for 1500 readings
ŸDelete single readings or all group readings
ŸError indication
ŸData transferred to PC via USB for analysis
ŸDisable Auto-Power-off function via MENU setting
ŸLCD display with backlight
ŸV-Groove sleeve
1. Working mode
2. Measured data quantity in the
working mode
3. Auto measure mode
4. Ferrous or No-ferrous metals
being measured. It will change
automatically in the Auto
measure mode
5. Battery indication
6. Measure data
7. Unit
8. Delete data, press Back button to
delete the current data
1
2
3
4
5
6
7
8
LCD Display
Tester Layout
1. LCD display
2. Select key: For ON/OFF, SELECT and OK
3. Up key: For upward selection and working mode switch
4. Clear Key: Calibration Zone of the FE and NFE
5. Housing
6. Back Key: For return or to delete the last measured data
7. Down key: For downward selection or working mode switch
8. Probe
9. Battery cover
1
2
3
4
5
6
7
8
9
Power on:
Press and hold the POWER button. If the LCD display does not switch on,
check if the battery is correctly installed or flat.
Displayed:
Low battery, replace battery immediately. The gauge will take faulty
measurements if the voltage is low.
Note: When the power is on, keep away from any metal at least 10cm away
before each measurement, zero calibration is recommended.
Ready to Start
1. Switch off the tester, remove the battery cover and remove batteries.
2. Insert new batteries, observing correct polarity and close the cover.
• Replace the batteries when the symbol “ ” is displayed........
• Use alkaline batteries only.
• Remove the batteries before any long period of non-use to avoid the
danger of corrosion.
Inserting/Replacing Batteries
Function & Operation Instruction
• Press the button to switch on the power. The gauge will automatically O
work in measuring mode.
• Press the SELECT button to enter the MENU mode.
Select Working Mode
Working Mode:
• There are 31 working modes in this gauge. Measurement data will not be
stored when the gauge is in Group0 measurement mode.
• In the other 30 working modes, 30 measured data can be stored in each
mode cycle.
1. Press the SELECT button to enter the MENU
2. Press the UP/DOWN button to select WORKING MODE
3. Press the SELECT button to enter WORKING MODE
4. Press the UP/DOWN button to select WORKING MODE
5. Press the SELECT button for OK.
Select Measure Mode (Probe)
The probe has 3 (three) different modes:
AUTO: T he probe can automatically select the working mode. When placed
on steel (magnetic substrates), it will work in magnetic induction
principle. When placed on no-ferrous metals, it will work in eddy
current principle.
Fe: The probe works in magnetic induction principle.
No-Fe: The probe works in eddy current principle.
1. Press the SELECT button to enter the MENU
2. Press the UP/DOWN button to select WORKING MODE
3. Press the SELECT button to enter WORKING MODE
4. Press the UP/DOWN button to select WORKING MODE
5. Press the SELECT button for OK.
Settings
Select Unit
1. Press the SELECT button to enter the MENU
2. Press the UP/DOWN button to SELECT THE SETTING
3. Press the SELECT button to ENTER THE SETTING
4. Press the UP/DOWN button to SELECT UNIT
5. Press the SELECT button to ENTER
6. Press the UP/DOWN button to SELECT
7. Press the SELECT button for OK
Backlight Brightness Setting
1. Press the SELECT button to enter the MENU
2. Press the UP/DOWN button to SELECT THE SETTING
3. Press the SELECT button to ENTER THE SETTING
4. Press the UP/DOWN button to SELECT BACKLIGHT
5. Press the SELECT button to ENTER
6. Press the UP/DOWN button to adjust the brightness of the BACKLIGHT
7. Press the BACK button to RETURN.
Auto Power Off
You can disable AUTO-POWER-OFF via MENU system or the gauge will
automatically power off in ±3 minutes if not in use.
1. Press the SELECT button to enter the menu
2. Press the UP/DOWN button to SELECT THE SETTING
3. Press the SELECT button to ENTER THE SETTING
4. Press the UP/DOWN button to select AUTO-POWER-OFF
5. Press the SELECT button to ENTER
6. Press the UP/DOWN button to SELECT
7. Press the SELECT button for OK
Adjust Gray Scale (Contrast)
Contrast adjustment: dot matrix LCD display may not be good in different
temperatures & humidity, you can adjust gray scale to get a better LCD display.
1. Press the SELECT button to enter the MENU
2. Press the UP/DOWN button to SELECT THE SETTING
3. Press the SELECT button to ENTER THE SETTING
4. Press the UP/DOWN button to SELECT GRAY SCALE
5. Press the SELECT button to ENTER
6. Press the UP/DOWN button to ADJUST GRAY SCALE
7. Press the SELECT button for OK
System Information
System version number
1. Press the SELECT button to enter the MENU
2. Press the UP/DOWN button to SELECT THE SETTING
3. Press the SELECT button to ENTER THE SETTING
4. Press the UP/DOWN button to SELECT INFORMATION
5. Press the SELECT button to ENTER
6. View the SYSTEM INFORMATION
7. Press the BACK button to RETURN
Data View
View the stored measured data in each mode.
All-delete: Delete all measured data in group.
1. Press the SELECT button to enter the MENU
2. Press the UP/DOWN button to SELECT VIEW
3. Press the SELECT button to ENTER VIEW
4. Press the UP/DOWN button to SELECT WORKING MODE
5. Press the SELECT button to ENTER
6. Press the UP/DOWN button to VIEW EACH DATA
7. Press the BACK button to RETURN or Press the SELECT button to
DELETE THIS GROUP DATA
Calibration and Measurement
The gauge can calibrate Zero-point of Fe or Non-Fe, or DELETE wrong
calibrated zero-point of Fe or Non-Fe. It is recommended that the zero-point
be calibrated before use.
Zero-point Calibration of Fe or Non-Fe
• Press and hold the ZERO button to Zero-point the calibration of the Fe or
Non-Fe measuring mode
• In the Fe mode, Zero-point calibration of Fe.
• In the Non-Fe mode, Zero-point calibration of Non-Fe (Less than
50UM(µm) is effective).
Delete Fe or Non-Fe Zero-point
1. Press the SELECT button to enter the MENU
2. Press the UP/DOWN button to SELECT CALIBRATION
3. Press the SELECT button to ENTER CALIBRATION
4. Press the UP/DOWN button to delete the ZERO-POINT of Fe or Non-Fe
5. Press the SELECT button for OK
6. Press the BACK button to RETURN
Delete Functions
In MENU system, you can find following function
• Delete current data: in measurement interface, you can delete the last
data entry by pressing the BACK button.
• Delete all data: Enter menu-view; you can delete all current data and
statistics
• Delete Group data: Enter menu-view-group data; you can delete this
group data by pressing the SELECT button
Trouble Shooting
The following list of error messages explains how to identify and eliminate
faults.
Err1 Fe probe fault
Err2 Non-Fe probe fault
Err3 Both probes.
Err4 Fe probe fault
Err5 Non-Fe probe fault
Specifications
Sensor probe Fe Non-Fe
Working principle Magnetic induction Eddy current principle
Measuring range 0~1350µm 0~1350µm
0~53.1mils 0~53.1mils
Guaranteed tolerance
(of reading)
0~1000um 0~1000um
±(2.5%+2um) ±(2.5%+2um)
1000~1350um (±3.5%) 1000~1350um (±3.5%)
0~39.3mils 0~39.3mils
(±2%±0.08 mils) (±2%±0.08 mils)
39.3~53.1mils (±3.5) 39.3~53.1mils (±3.5)
Minimum curvature radius 1.5mm 3.0mm
Diameter of Minimum area 7.0mm 5.0mm
Minimum measurable
thickness
0.5mm 0.3mm
Overload display — — —
Precision 0~100um (0.1urn) 0~100um (0.1urn)
100um~1000um (1um) 100um~1000um (1um)
1000um~1350um
(0.01 mm)
0~10mils (0.01mils)
10~53.1mils (0.1mils)
1000um~1350um
(0.01 mm)
0~10mils (0.01mils)
10~53.1mils (0.1mils)
Working temperature
Working relative humidity
Dimensions (H x W x D)
Weight
Power supply
0°C ~ 40°C (32°F ~ 104°F)
20% ~ 90%
2 x AAA 1.5V Batteries
113.5mm x 54mm x 27mm
110g
www.major-tech.com www.majortech.com.au
MAJOR TECH (PTY) LTD
South Africa Australia
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