phase II+ MET-U1A, MET-UDA Instruction Manual

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* Hardness Testers * Ultrasonic Thickness * Surface Finish * Coating Thickness *

Model No’s: MET - U1A & MET - UDA

Instruction Manual

Non-Destructive Hardness Tester!

(201)933-6300

www.phase2plus.com

* Precision Measuring Tools * Indexing Fixtures * Workholding Fixtures *

Dynamic Impact Device Type D Ultrasonic Transducer

Dynamic Testing Method information:

The Leeb measuring method was first brought into measurement technology in 1978. It is defined as the quotient of an impact body’s rebound velocity over its impact velocity, multiplied by 1000. Harder materials produce a higher rebound velocity than softer materials. For a specific group of material (e.g. steel, aluminum. etc.). Leeb hardness value represents a direct relationship to its hardness properties. For ordinary metal, conversion curves of hardness HL versus other standard static hardness (HB, HV, HRC, etc.) are available, enabling you to convert HL into other hardness values. Leeb Hardness Test (definition) An impact body with a spherical test tip made of tungsten carbide is propelled against the sample surface by a spring force and then rebounds back. At a distance of 1mm from the sample surface, the impact and rebound velocity of the impact body are measured by the following method: A permanent magnet embedded in the impact body, when passing through the coil in its coil holder, induces in the coil an electric voltage proportional to the velocities of the magnet. Leeb hardness is expressed by the following formula:

HL = 1000 x (V

Where: HL is Leeb Hardness V

is the rebound velocity of the impact body

is the impact velocity of the impact body

B/VA

)

Ultrasonic Testing (UCI)Method information:

UCI method Ultrasonic Contact

Impedance, a hardness testing method developed by Dr. Claus Kleesattel in 1961 based on the measurement of the frequency shift of a resonating rod caused by the essentially elastic nature of a of the finite area of contact between the indenter and the test piece during the penetration.

In the mobile hardness test under applied

load according to the UCI method, the size of the produced indents are not determined optically. Instead the contact area is derived from the electronically measured shift of an ultrasonic resonance frequency. To carry out the UCI test, a probe containing the rod with the indenter is excited into a longitudinal ultrasonic oscillation of about 70 kHz by piezo-electric ceramics- the so called zero frequency, which occurs when the indenter is vibrating in air. A spring inside the probe applies the specified test load, the vibrating tip penetrates into the material creating an elastic contact, which results in a positive frequency shift of the resonating rod. This shift is related to the size of the indent area. The size, in turn, is a measure for hardness of the test material at a given modulus of elasticity.

Functions of the Phase II MET-U1A & UDA Hardness Testers

The Phase II MET’s are state of the art, handheld hardness testers that provide high accuracy and simplicity of operation for a wide measuring range. It is suitable for testing the hardness of ordinary metals and is widely applied in many industries including the petroleum, chemical, industrial machining and electric power industries, etc. Test direction (upside down) does not influence the readout.

Typical Applications MET-UDA

• Inspection of installed machinery, permanent parts of assembled systems and heavy workpieces

• Inspection of the molding surface of a die

• Analysis of pressure vessels, turbo generator sets, etc.

• Inspection of bearing and other mass produced parts on a production line

• Obtaining original records of test data

• Identification of metallic materials stored in a warehouse

Typical hardness testing applications of the MET-UD (dynamic) include:

including large castings.

Typical Applications MET-UD/U1

• Capable of checking hardness on a variety of metals with varying mass and thickness.

• Especially suited for checking finished articles with a polished surface since there is no visible

• Restrictions include all coarse grain structured metals such as Iron or items that are less than

Typical hardness testing applications of the MET-UD/U1 (Ultrasonic) include:

imprint left after testing

1mm in thickness.

(Using the Dynamic impact device)

(Using the Ultrasonic Transducer)

Choosing between Dynamic and Ultrasonic Testing

The choice between using the dynamic impact device or the ultrasonic transducer depends upon your application. Parameters such as mass, configuration, structure, degree of mechanical and thermal treatment all play a part in this decision. The design of the Ultrasonic transducer makes it possible to check the hardness on articles in difficult to reach positions (such as gear teeth), thin materials, finely polished surfaces and any other application where it is impossible to take a dynamic hardness test. The dynamic hardness test is specialized for checking hardness on large hard parts whereas the ultrasonic method is finely tuned to check hardness on smooth, thin and some softer material. Since the MET-UD comes complete with both a dynamic impact device for large hard parts and the ultrasonic transducer for all other configurations, you can be confident that you will be able to test almost any application that is mentioned in the above paragraph.

The MET portable hardness testers are designed to measure hardness of metals and alloys in the most

popular hardness scales, such as Rockwell C (HRC), Rockwell B (HRB), Brinell (HB), Vickers (HV), and

Leeb (LD). Calibration on these scales are carried out directly by Phase II prior to shipment of each unit.

The MET hardness testers offer additional “open” scales (H0, H1, H2, H3) that provide the opportunity

to:

● Calibrate and conduct hardness tests in other scales (i.e., Superficial Rockwell (HRN and HRT)

or any other common hardness scale)

● Conduct hardness test of metals that have significantly different properties from steel (iron,

aluminum and copper alloys etc.).

Setting Test Parameters

1) Scale Selection (Press Left or Right Arrow for selections)

Ø= Yes ×= No

2) Operation Mode Selection (Press Left or Right Arrow for selections)

Ø× Ø× Ø×

Ø× Ø×

Measurement

and Archive

Archive Scale Correction

Measurement on

Test Block #1

Scale Correction

Measurement on

Test Block #2

Sample limits setting

and average value

determination

Every level of the menu allows the selection of parameters or modes of operation.

• The first level – ‘scale’ – allows to choose the current (operational) hardness scale from the

following: HRC, HB, HV, HLD, H1, H2 or H3.

• The second level – ‘measurement-calibration-processing’ – allows you to select the current

(operational) hardness tester mode: measurement, calibration or processing.

• The third level – ‘YES/NO’ allows to confirm or cancel the selected operation and get back to the

former operations by pushing Ï button.

By pushing the Ï and Ð buttons it allows you to choose the menu level and by pushing the ÍÎ

buttons it allows you to select a parameter within the chosen level.

MET Power Supply

The NiMh battery compartment is located on the back side of the electronic module. When installing, be

sure to pay attention to the polarity of the battery. Be sure to dispose of the battery according to local

regulations.

The battery capacity indicator is shown on the right side of the display. Three dark squares inside the

battery symbol show the battery condition. As the battery discharges, the squares disappear one by one

from top to bottom.

Battery charging can be done with the supplied a/c adapter or via USB connection to your PC.

The MET is capable of all functions while being charged.

Be sure that the battery is installed prior to connecting the charger. Failure to follow this

may result in possible damage to the charging and/or electronics system and void any

stated warranty.

Please note that that the 4-pin female port on the left side of the hardness tester is used for charging

and output. Once the charger is plugged in, you will see the lights in the battery symbol ascend from

bottom to top. When the battery symbol is fully lit, the unit is completely charged and you should

proceed to remove the charger from the hardness tester.

Procedure of Operation

Preparation for Operation

Visual Inspection

Make visual inspection of the device, making sure that there is no mechanical damage to the electronic

transducer, connective cable.

Surface Preparation

Prepare the area of the tested surface by removing moisture, lubricants, scale, oxidation, rust, etc.

The roughness of the part to be tested and radius of curvature of the tested surface and also mass and

size parameters of the article shall correspond to the parameters given in the hardness tester data

sheet.

Transducer Connection

Transducer shall be connected to the electronic module by a five-pin plug. The transducer plug is

equipped with a rotating cylindrical lock

To connect the transducer, make the following steps:

• turn the lock counterclockwise up to the stop;

• Insert the plug of the transducer into the 5-pin female port by pushing slightly

• turn the lock clockwise slightly until you feel it lock.

Power Unit On

• Press Ð button to power on the hardness tester

• The MET will automatically recognize the type of transducer and will show the results on the

display by showing either ‘ultrasonic transducer’ or dynamic transducer’

• after the hardness tester performs this start up procedure, the hardness tester will show the last

parameters used and start up in the “Archive” section.

Power Supply Switching Off

• The MET will automatically shut off after a 3 minute period of non-usage.

• To Manually shut off the unit, Press the ÍÎ buttons simultaneously.

Display Lighting

Display lighting is switched on and off by pushing Ï button from the first level in the “Scale” menu.

Operation with display lighting will slightly reduce the time the device can operate on a full charge.

Operation with Electronic Module

Choosing parameters

Power Unit on according to instructions:

Scale Selection

• Begin by pressing the Ï button to get to the – ‘scale’ – parameter. In the display upper part,

words ‘XXX scale’ will appear, where ‘XXX’ can be HRC, HRB, HB, etc

• Select the hardness scale you need by pushing Í and Î buttons.

• Confirm the selection of the required for you hardness scale by pushing Ð button. After that

you will automatically advance to the second level “TEST”

Operation Mode Selection

• Select the required operation mode – ‘TEST’ or ‘CALIBRATE’, or ‘PROCESS’

by pushing either Í and Î buttons.

• when you are in the parameter that you need, press the Ð button to confirm this procedure.

The hardness tester is now ready for that operation.

Operation Canceling

To cancel an operation or to return to the previous one press the Ï button.

‘Test’ Mode

‘Test’ mode and all operations within this mode shall be conducted separately for U1 ultrasonic

transducer and D1 dynamic transducer. The given below operations can be performed in this mode.

• Archive

• Measurement and recording

‘Archive’ Operation

Hardness tester operation in ‘measurement’ mode always starts with the ‘Archive’ operation.

Attention!

‘measurement and recording’ operation. For this purpose, push Ð button.

During the first operation it is recommended to skip the ‘archive’ operation and proceed with

View of Display (Measurement Mode)

Explanation of display

‘HRC’ = Rockwell C Scale;

’58.1’ = the measured value on HRC scale;

“00” is the number of tests taken to be stored in the 06 archive (as each test is taken, this number will

increase from 00 to 01 to 02, etc.

‘Measure #06 is the number of the archive cell in which 58.1 HRC will be stored;

‘battery’ symbol is battery power indicator

View of Display (Archive Mode)

Archive cell number changing

While in the Archive mode (Display is shown above) you need to push either the Í or Î buttons to

change the archive cell number. The change of the archive cell number will result in the change of the

readings of the measured value (58.1) into the readings of another measured value saved under the

relevant archive number (#06, 07, 08, etc.). The hardness scale (HRC), however, will remain

unchanged.

To look through the archive in the other hardness scales

you need by pressing the appropriate buttons

(HRB, HB, etc.), it is necessary to set the scale

‘Measurement and Recording’ Operation

Start ‘measurement and recording’ operation by pushing Ð button in order to finish and go out from the

‘archive’ operation. Indication on the display is shown on the figure below.

To obtain the mean value of your latest archived results, press the Ð button.

After the mean value computation, the hardness tester will automatically start the ‘archive’ operation for

you to save the obtained results. If you do not want to save the results and want to continue your

measurement, push Ð button to switch to ‘measurement and recording’ operation.

Deleting Test Results (Measurement mode only)

After you have taken a test you should push the Í button. This will delete that test result and the

display will then show the previous test result. If your test result is erroneous for any reason, you

should delete that result so it does not skew the overall average of your testing.

Recording in the archive

(starting point)

The screen below shows how the display will appear when in the archive mode. As shown, the tester is

in archive no.2. If this is acceptable, you should press the Ð button to proceed to measurement mode

and begin testing. The results will be displayed in archive no.2 . Example: if the unit is showing archive

no. 2 and you wish to start your archive in another location such as No. 26, you would press the Î

button to change the archive location by increasing numbers.

Once you have selected your archive starting point, you need to press the Ð button to bring you to the

Measurement mode. At this point, you may begin taking tests.

Recording measurements in the archive (after choosing starting point)

• recording the measured hardness value (58.1) or mean value into

the archive is done by pushing the Î button. In doing so, the number of the archive cell for

measurement recording (measure No01) will be automatically increased by 1 (measure No2).

• it is recommended to set ‘00’ in the current measurement number for every new set of

measurements.

Calibration Procedures

Special Code Required to Perform this Procedure!

This procedure should be performed by highly skilled personnel only! If you are experiencing erratic

results with your MET, you should contact Phase II and arrange for an inspection prior to making any

changes.

‘Calibration’ mode and all operations under this mode shall be performed separately for U1 ultrasonic

transducer and D1 dynamic transducer.

Hardness tester calibration means that that the unit in question will be adjusted to fall within NIST

tolerances on calibrated test blocks.

For hardness tester calibration by user, it is necessary to have two reference hardness blocks with

maximum and minimum values in the hardness scale.

Examples:

• for calibration along the whole ‘C’ Rockwell scale, two reference hardness blocks are required

with the values of (25±5) HRC and (65±5) HRC.

• If you do not use the whole range of ‘C’ Rockwell but only the range of 20÷40 HRC, perform

the calibration on reference hardness blocks with the values of (25±5) HRC and (45±5) HRC.

Reasons to perform a calibration:

• If the hardness tester verification on the reference hardness blocks differ from the

nominal value of the reference hardness block; example: (Block is HRC 45.5 and results are 49.3)

• after long periods of storage (more than 3 months);

• after intensive operation (more than 200.000 measurements for U1 ultrasonic transducer

and 50.000 for D1 dynamic transducer);

• in case of considerable change in the conditions of operation (temperature, humidity etc.)

‘Calibration’ Operation

Select the scale you wish to calibrate the hardness tester in and press the Ð button to enter next mode.

The display will be blinking “Test”. Press the Î button to enter into ‘Calibration’ mode. Press the Ð

button and the display will ask you for your code.

Enter the code and then push the Ð button The display indication in the ‘Calibration’ mode is shown on

the figure below.

Hardness scale

Measurement hardness value

Battery indication

Transducer

Current measurement number

Operation duty

The meaning of words and symbols on the display

‘HRC’ = Rockwell C hardness scale;

‘00’ the current measurement number

’0.00’ = the measured value on Rockwell hardness scale (HRC);

‘Calib No1’ = calibration tests performed

Blinking symbol = Transducer is ready

Battery symbol = charge remaining in battery

Measurement on reference hardness block #1 (step 1) – obtaining of mean hardness number.

Take one reference hardness block. Conduct at least FIVE measurements! Average the obtained values

by pushing the Ð button.

Correction (step 2) –Adjust the value shown on the display to match the value of your test block. In

other words, if your test block value is HRC 25.5 and your mean value is HRC19.5 you must adjust the

(this will increase with each test taken)

(no test taken yet)

(will increase after each Set)

tester by pressing the Î button to increase the value shown on the display. Match the display reading

to your test block value. When the values are equal, press Ð button to save the adjusted result.

Measurement on reference hardness block No2 (step 3) –repeat the actions described in the

previous paragraph.

Correction (step 4) –Repeat the actions described in step 2. When you have completed the correction,

press the Ð button to complete and save the new calibration. Pushing the Ð button will lead to the

completion of the steps and going out from ‘Calibration’ mode.

Verification of the hardness tester readings after the conducted calibration

Measure the hardness of reference hardness block N

1 (not less than 5 measurements) and compute its

mean value. The obtained value should be within acceptable tolerances for the scale.

If the obtained value exceeds the tolerance of the nominal value then you need to perform ‘CLEAR

CALIBRATION’ function and repeat the CALIBRATION’ procedure.

‘Clear Calibration’ Operation

Hardness tester calibration by users requires highly skilled professional personnel. If you failed to

introduce the correction to the hardness tester calibration for the second time or if you doubt the results

of the conducted ‘Calibration’ operation, it is recommended to perform ‘clear cal.’ Operation.

To clear calibration correction introduced independently, perform the following steps:

• select the scale

• enter ‘Calibration’

• enter the code;

• Push Î button

NOTE

: By performing the Clear Cal, the unit will automatically default to the factory preset calibration.

‘Processing’ Mode

‘Processing’ mode and all operations within this mode shall be conducted separately for U1 ultrasonic

transducer and D1 dynamic transducer.

Within this mode the listed below operations can be carried out:

• compute mean value;

• clear archive

Select the scale. Press the Ð button. The display will show Test (blinking) Press the Enter the Î button

to scroll over to “Process” and then press Ð button to enter ‘processing mode Select your operation by

Í or Î button and confirm your selection by the Ð button.

‘Mean Value’ Operation

‘Mean Value’ operation is used for mean value computation within any interval of the archive cell

(sample interval).

Display indication is shown on the figure.

Hardness scale

Mean hardness value on Hrc scale

Battery charge symbol

Sample interval

The meaning of words and symbols on the display

• ‘HRC’ = Rockwell C hardness scale

• 53.6 = mean hardness value in HRC

• 02 avrg 08 =’ sample interval

• ‘Battery symbol = battery strength

The display shows the result of the hardness mean value 53.6 on Rockwell C scale (HRC) for the archive

cells from number two through number eight (<02 mean 08)

Setting the limits for sample mean value computation:

• Push Ð button to move < or > sign to the left initial (>02) and the right (<08) number of the

sample limits by one;

• Every push of Í or Î button will decrease or increase the left (>01) and the right (<07)

number of the sample limits by one.

• The sample mean value is computed and shown on the display automatically

(’53.6 mean val). Operation does not change the archive cells content. ‘Mean val.’ operation is

performed only for filled in cells within the sample limits.

‘Clear Archive’ Operation

‘Clear archive’ operation is designed for deleting ALL stored content in the archive cells.

In the ‘Processing’ operation mode, select ‘clear archive’ operation by pushing Í or Î button. Push Ð

(yes) button. The words ‘Please, wait, clear archive’ will appear and in two seconds the archive will be

deleted.

The First Measurement

U1 ultrasonic hardness transducer

• Blinking of ‘transducer’ symbol on the display means that the hardness tester is ready to

conduct measurements.

• Place the transducer on the area to be tested. Hold the transducer extremely steady by

using your fingers to hold the flat brass footing as shown in the picture below.

• Gently press straight down on the transducer body slightly until the diamond pyramid makes

initial contact with the surface of your part. Using a little more force, increase the downward pressure

immediately until the diamond pyramid is forced into the surface

stay on constantly showing that you are making a good connection to the part)

The effort should be made smoothly.

Be sure that your hand does not shake because the

. (The Blinking Transducer light will now

transducer body must remain stable during the test. For the proper transducer operation, it is necessary

to apply an effort of not less than 14.7 N (1.5 kgf) to its body and keep it stable during the process of

measurement. Do not be afraid to apply an excessive effort to the transducer body as it will be limited

by the built-in stop.

DO NOT JAM PROBE ONTO ANY SURFACE!

• Keep constant pressure on the transducer body during 3-4 seconds. ‘Transducer’ symbol on the

display will stop blinking.

• After the sound signal and appearance of the hardness value on the electronic transducer

display, stop holding pressure on the transducer body. The ‘transducer’ symbol on the display will start

blinking again, and the transducer body will return to the initial position.

The first measurement has been completed, and the hardness tester is ready for the next measurement.

Experimental Measurement

It is advisable to consider the first measurement as experimental measurement. In order to acquire some experience of how

to use the transducer, it is recommended to conduct a number of experimental measurements.

Acquiring some experience working with the transducer

To acquire some experience of working with the transducer, it is recommended to use reference hardness blocks. Measure

the hardness of a reference hardness block (not less than 10-20 measurements) and compute its mean value. If the

obtained value does not correspond to the number of the reference hardness block, conduct more measurements.

If the hardness tester readings are stable and the obtained mean value corresponds to the reference hardness blocks rated

value you can begin testing your particular application.

In the process of working with the transducer, make sure that the cable (connecting the transducer with the electronic

module) is not twisted.

Using the D1 Dynamic Transducer (Impact device “D”)

Be sure that the requirements for the tested article are observed, connect the transducer to the

electronic module switch the power supply on and turn to the ‘measurement’ mode

In the process of measurement, the article shall be fixed and the transducer shall be installed

perpendicular to the measurement area.

The First Measurement

• Blinking of ‘transducer’ symbol on the display means that the hardness tester is ready to

conduct measurements.

Measuring Procedure

Use the supplied Leeb test block to check your hardness tester prior to your own testing applications.

Loading the impact device

Press down the loading tube to lock the impact body.

↓

Placement

Place the support ring (Round part on the bottom of device) on the surface to be measured. The distance between two test points should not be less than 0.1 in (3mm).

Start to Test Gently press the release button on top of the impact device while the work piece, the impact device and the impact body are all stable and the starting force coincides with the axis of the impact device

Experimental Measurement

←

It is advisable to consider the first measurement as experimental measurement. In order to acquire

some experience of how to use the impact device, it is recommended to conduct a number of

experimental measurements.

• After experimental measurement conducting, push Í button to delete the result and exclude it

from the article mean hardness value computation

• After a number of experimental measurements have been conducted for the purpose of

acquiring some experience of using the transducer, you may use ‘Clear Archive’ function to delete the

results of the experimental measurements

Acquiring some experience of working with the transducer

To acquire some experience of working with the transducer, it is recommended to use reference

hardness blocks. Measure the hardness of a reference hardness block (not less than 10-20

measurements) and compute its mean value. If the obtained value does not correspond to the number

of the reference hardness block, conduct more measurements.

If the hardness tester readings are stable and the obtained mean value corresponds to the reference

hardness block rated value you may proceed with normal testing procedures.

In the process of working with the impact device, make sure that the cable (connecting the transducer

with the electronic module) does not get twisted.

Maintenance and Repair Avoid placing the MET near locations where it can be exposed to shock, heavy dust, dampness, strong magnetic fields and any form of lubricious fluids.

Battery Replacement:

• Remove two rubber plugs on the back side Bottom half of the MET-U1A. Use the supplied hex wrench to loosen the two hex screws. Lift the metal battery cover off to expose the 4-AA batteries. It is recommended that you replace the batteries with a high quality NiMh set of rechargeable batteries. Standard AA batteries can also be used but life expectancy will not be very long. Pay careful attention to the polarity when installing new batteries. Please be sure and dispose of the NiMh batteries properly and according to local recycling laws.

Impact Device D

• Using the included brush, clean the guide tube and impact body after it has performed 1000-2000 tests using the following procedure:

 Screw off the support ring and take out the impact body.  Clean the tube by winding the brush counter-clockwise into the

tube until it reaches the bottom and then pull it out. Repeat this procedure 5-6 times.

 Replace the impact body and support ring.  Release the impact spring after each test.

 Never apply lubrication of any kind to

impact body or tube!

Repair

• When the tester is calibrated against the standard test block and results are out of tolerance, it

• Upon coming across any functional problems not mentioned in this manual, contact a Phase II

• DO NOT open the MET or dismount any of its fixed parts. This precision instrument should

• If the unit is opened, its warranty will automatically become void.

Dynamic impact device

could

mean the carbide ball inside of the impact device is worn out and should be replaced.

Customer Service Representative at (201)933-6300.

only be serviced by a factory trained service representative.

UCI- Ultrasonic Contact Impedance Method

Terminology:

Definitions:

UCI Method

UCI method Ultrasonic Contact Impedance, a hardness testing method developed by

Dr. Claus Kleesattel in 1961 based on the measurement of the frequency shift of a resonating rod caused by the essentially elastic nature of a of the finite area of contact between the indenter and the test piece during the penetration.

UCI Hardness Test

a resonating rod with a defined indentor, for example, a Vickers Diamond, with a fixed force against the surface of the part to be tested.

Calibration

: determination of the specific values of the significant operating parameters of the UCI instrument by comparison with values indicated by a standardized workbench hardness tester or by a set of certified test blocks.

: a hardness testing practice using a calibrated instrument by pressing

Verification according to ASTM A 1038-05

Check the UCI hardness testing instrument by making at least 5 measurements on a standard reference

test block of the selected hardness scale.

The instrument shall be considered verified if each hardness reading falls within +/- 3% of the actual

reference test block value.

Leeb Measuring Method – (For MET-UD only)

History

Leeb Hardness Test (definition)

An impact body with a spherical test tip made of tungsten carbide is propelled against the sample surface by a spring force and then rebounds back. At a distance of 1mm from the sample surface, the impact and rebound velocity of the impact body are measured by the following method: A permanent magnet embedded in the impact body, when passing through the coil in its coil holder, induces in the coil an electric voltage proportional to the velocities of the magnet. Leeb hardness is expressed by the following formula:

A Leeb’s Hardness Tester measures the hardness of sample material in terms of Hardness Leeb (HL), which can be converted into other Hardness units (Rockwell B and C, Vicker and Brinell).

HL = 1000 x (VB/VA)

Where: HL is Leeb Hardness V

V The voltage characteristic of output signal, when the impact body passes through the induction coil is

illustrated in the following figure:

is the rebound velocity of the impact body

is the impact velocity of the impact body

Trouble Shooting Chart:

Problem Reason Solution

Display does not switch on

Readings on the display do not change

Measurement results are stable but differ

from reference hardness block nominal

value

Big range of the measurement results

The battery is discharged Charge or replace

The battery is not installed correctly Reinstall, observe the indicated polarity

There is no contact in the connector of the transducer with

the electronic module

Break in the connecting cable or connector; fault of the

transducer of electronic module

The spring of the transducer has been worn out after long

life

The tested material is not uniform in its structure

Tested area has not been prepared properly Smooth out surface finish

The diamond pyramid or carbide ball are dirty Clean using rubbing alcohol

The diamond pyramid tip or hardmetal ball are damaged Contact the service center

Check the connection reliability

Contact the service center

Calibrate the hardness tester independently on the

reference hardness blocks

Increase the number of measurements

to obtain average

D1 Dynamic Transducer

The impact device is not making proper contact or

alignment with the surface

The hardness reference block surface is covered by the

imprints from the previous measurements

Conduct the repeated test correctly

Use a new reference hardness block

U1 Ultrasonic Transducer

The packing on the transducer body is displaced Contact the service center

D1 Dynamic Transducer

Much higher readings than actual value

of test block

Higher readings when hardness of

cylinder shaped articles with surface

hardening is measured

Carbide ball deformation Contact the service center for replacement balls

Influence of the articles surface tensions Use U1 ultrasonic transducer

ASTM Hardness

Round Correction Factors

Corrections to be added to test results in the following scales for various diameter parts

Corrections to be added to Rockwell C, A, and D values

Hardness Reading

20 6.0 4.5 3.5 2.5 2.0 1.5 1.5 1.0 1.0 25 5.5 4.0 3.0 2.5 2.0 1.5 1.0 1.0 1.0 30 5.0 3.5 2.5 2.0 1.5 1.5 1.0 1.0 0.5 35 4.0 3.0 2.0 1.5 1.5 1.0 1.0 0.5 0.5 40 3.5 2.5 2.0 1.5 1.0 1.0 1.0 0.5 0.5 45 3.0 2.0 1.5 1.0 1.0 1.0 0.5 0.5 0.5 50 2.5 2.0 1.5 1.0 1.0 0.5 0.5 0.5 0.5 55 2.0 1.5 1.0 1.0 0.5 0.5 0.5 0.5 0 60 1.5 1.0 1.0 0.5 0.5 0.5 0.5 0 0 65 1.5 1.0 1.0 0.5 0.5 0.5 0.5 0 0 70 1.0 1.0 0.5 0.5 0.5 0.5 0.5 0 0 75 1.0 0.5 0.5 0.5 0.5 0.5 0 0 0 80 0.5 0.5 0.5 0.5 0.5 0 0 0 0 85 0.5 0.5 0.5 0 0 0 0 0 0 90 0.5 0 0 0 0 0 0 0 0

Hardness

Reading 1/4 in 3/8 in 1/2 in 5/8 in 3/4 in 7/8 in 1 in

6.4 mm 10mm 13mm 16 mm 19 mm 22 mm 25 mm

0 12.5 8.5 6.5 5.5 4.5 3.5 3.0 10 12.0 8.0 6.0 5.0 4.0 3.5 3.0 20 11.0 7.5 5.5 4.5 4.0 3.5 3.0 30 10.0 6.5 5.0 4.5 3.5 3.0 2.5 40 9.0 6.0 4.5 4.0 3.0 2.5 2.5 50 8.0 5.5 4.0 3.5 3.0 2.5 2.0 60 7.0 5.0 3.5 3.0 2.5 2.0 2.0 70 6.0 4.0 3.0 2.5 2.0 2.0 1.5 80 5.0 3.5 2.5 2.0 1.5 1.5 1.5 90 4.0 3.0 2.0 1.5 1.5 1.5 1.0

100 3.5 2.5 1.5 1.5 1.0 1.0 0.5

When testing cylindrical specimens, the accuracy of the test will be seriously affected by alignment of elevating screw, Veeanvil, indenters, surface finish, and the straightness of the cylinder. These corrections are approximate only and represent the averages, to the nearest 0.5. Rockwell and Rockwell superficial numbers, of numerous actual observations. The above tables are from ASTM E 18 Reprinted from the Annual Book of STM Standards, copyright American Society for Testing and Materials. 100 Harbor Drive, West Conshohocken , PA 19428-2959

1/4 inc 3/8 in 1/2 in 5/8 in 3/4 in 7/8 in 1 in 1-1/4 in 1-1/2 in

6.4 mm 10 mm 13 mm 16 mm 19 mm 22 mm 25 mm 32 mm 38 mm

Diameter of Convex Cylindrical Surfaces

Diameters of Convex Cylindrical

Surfaces

ASTM Hardness Conversion Chart

Rockwell C Hardness Range

Approximate Hardness Conversion Numbers for Non-Austenitic Steels, According to ASTM E-140

The Conversion Values contained herein should be considered approximate only and may be inaccurate for specific

applications

C A D 15N 30N 45N Vickers Knoop Brinell Tensile

150 kgt 60 kgt 100kgt 15kgt 30 kgt 45 kgt Hardness Hardness Hardness Strength diamond diamond diamond diamond diamond diamond 500gr 3000kgt 1000 lbs/

and over 10mm ball square in

68 85.6 76.9 93.2 84.4 75.4 940 920 .. ..

67 85.0 76.1 92.9 83.6 74.2 900 895 .. ..

66 84.5 75.4 92.5 82.8 73.3 865 870 .. ..

65 83.9 74.5 92.2 81.9 72.0 832 846 (739) 64 83.4 73.8 91.8 81.1 71.0 800 822 (722) 63 82.8 73.0 91.4 80.1 69.9 772 799 (705) 62 82.3 72.2 91.1 79.3 68.8 745 776 (688) 61 81.8 71.5 90.7 78.4 67.7 720 754 (670) 60 81.2 70.7 90.2 77.5 66.6 697 732 (654) 59 80.7 69.9 89.8 76.6 65.5 674 710 (634) 351 58 80.1 69.2 89.3 75.7 64.3 653 690 615 338 57 79.6 68.5 88.9 74.8 63.2 633 670 595 325 56 79.0 67.7 88.3 73.9 62.0 613 650 577 313 55 78.5 66.9 87.9 73.0 60.9 595 630 560 301 54 78.0 66.1 87.4 72.0 59.8 577 612 543 292 53 77.4 65.4 86.9 71.2 58.6 560 594 525 283 52 76.8 64.6 84.4 70.2 57.4 544 576 512 273 51 76.3 63.8 85.9 69.4 56.1 528 558 496 264 50 75.9 63.1 85.5 68.5 55.0 513 542 481 255 49 75.2 62.1 85.0 67.6 53.8 498 526 469 246 48 74.7 61.4 84.6 66.7 52.5 484 510 455 237 47 74.1 60.8 83.9 65.8 51.4 471 495 443 229 46 73.6 60 83.5 64.8 50.3 458 480 432 221 45 73.1 59.2 83.0 64.0 49.0 446 466 421 215 44 72.5 58.5 82.5 63.1 47.8 434 452 409 208 43 72.0 57.7 82.0 62.2 46.7 423 438 400 201 42 71.5 56.9 81.5 61.3 45.5 412 426 390 195 41 70.9 56.2 80.9 60.4 44.3 402 414 381 188 40 70.4 55.4 80.4 59.5 43.1 392 402 371 182 39 69.9 54.6 79.9 58.6 41.9 382 391 362 177 38 69.4 53.8 79.4 57.7 40.8 372 380 353 171 37 58.9 53.1 78.8 56.8 39.6 363 370 344 166 36 68.4 52.3 78.3 55.9 38.4 354 360 336 161 35 67.9 51.5 77.7 55.0 37.2 345 351 327 156 34 67.4 50.8 77.2 54.2 36.1 336 342 319 152 33 66.8 50.0 76.6 53.3 34.9 327 334 311 149 32 66.3 49.2 76.1 52.1 33.7 318 326 301 146 31 65.8 48.4 75.6 51.3 32.5 310 318 294 141 30 65.3 47.7 75.0 50.4 31.3 302 311 286 138 29 64.8 47.0 74.5 49.5 30.1 294 304 279 135 28 64.3 46.1 73.9 48.6 28.9 286 297 271 131 27 63.8 45.2 73.3 47.7 27.8 279 290 264 128 26 63.3 44.6 72.8 46.8 26.7 272 284 258 125 25 62.8 43.8 72.2 45.9 25.5 266 278 253 123 24 62.4 43.1 71.6 45.0 24.3 260 272 247 119 23 62.0 42.1 71.0 44.0 23.1 254 266 243 117 22 61.5 41.6 70.5 43.2 22.0 248 261 237 115 21 61.0 40.9 69.9 42.3 20.7 243 256 231 112 20 60.5 40.1 69.4 41.5 19.6 238 251 226 110

Hardness values in Brackets are outside the range recommended for Brinell testing in ASTM E-10. The above tables is from ASTM E-110 except values for E-scale and Tensile Strength which are not from or according to ASTM Standards. Reprinted from the Annual Book of ASTM Standards, Copyright American Society for Testing and Materials, 100 Barr Harbor Drive,West Conshohocken,PA 19428-2959.

ASTM Hardness Conversion Chart

Rockwell B Hardness Range

Approximate Hardness Conversion Numbers for Non-Austenitic Steels, according to ASTM E-140

The conversion values contained herein should be considered approximate only and may be inaccurate for

Specific applications.

Rockwell Superficial Rockwell Vickers Knoop Brinell Tensile Brinelll

B A E 15T 30T 45T

100kgf 60 kgf 100 kgf 15 kgf 30 kgf 45 kg f 500gf 3000 kgf 1000 lbs/ 500 kgf

1/16"ball diamond 1/8" ball 1/16" ball 1/16"ball 1/16" ball and over 10mm ball square in 10mm ball

100 61.5 93.1 83.1 72.9 240 261 240 116 201

99 60.9 82.8 82.5 71.9 234 246 234 114 195 98 602 92.5 81.8 709 228 241 228 109 189 97 59.5 92.1 81.1 699 222 236 222 105 184 96 58.9 91.8 80.4 689 216 231 216 102 179 95 58.3 91.5 79.8 67.9 210 226 210 100 175 94 57.6 91.2 79.1 669 205 221 205 98 171 93 57 90.8 784 659 200 216 200 94 167 92 56.4 90.5 77.8 64.8 195 211 195 92 163 91 55.8 90.2 77.1 63.8 190 206 190 90 160 90 55.2 89.9 76.4 62.8 186 201 186 89 157 89 54.6 89.5 76.8 61.8 180 196 180 88 164 88 64.0 89.2 75.1 60.8 176 192 176 86 151 87 53.4 88.9 74.4 59.8 172 188 172 84 148 86 52.8 88.6 73.8 58.8 169 184 169 83 145 85 52.3 88.2 73.1 57.8 165 180 165 82 142 84 51.7 87.9 72.4 56.8 162 176 162 81 140 83 51.1 87.6 71.8 55.8 159 173 159 80 137 82 50.6 87.3 71.1 54.8 156 170 156 76 135 81 50 86.9 70.4 53.8 153 167 153 73 133 80 49.5 86.6 69.7 52.8 150 164 150 72 130 79 48.9 86.3 69.1 51.8 147 161 147 70 128 78 48.4 86.0 68.4 50.8 144 158 144 69 126 77 47.9 85.6 67.7 49.8 141 155 141 68 124 76 47.3 85.3 67.1 48.8 139 152 139 67 122 75 46.8 86.0 66.4 47.8 137 150 137 66 120 74 46.3 84.7 65.7 46.8 135 147 135 66 118 73 45.8 84.3 65.1 45.8 132 145 132 64 116 72 45.3 84.0 64.4 44.8 130 143 130 63 114 71 44.8 100 83.7 63.7 43.8 127 141 127 62 112 70 44.3 99.5 83.4 63.1 42.8 125 139 125 61 110 69 43.8 99.0 83.0 62.4 41.8 123 137 123 60 109 68 43.3 98.0 82.7 61.7 40.8 121 135 121 59 108 67 42.8 97.5 82.4 61 39.8 119 133 119 58 106 66 42.3 97.0 82.1 60.4 38.7 117 131 117 57 104 65 41.8 96.0 81.8 59.7 37.7 116 129 116 56 102 64 41.4 95.5 81.4 59 36.7 114 127 114 100 63 40.9 95.0 81.1 58.4 35.7 112 125 112 99 62 40.4 94.5 80.8 57.7 34.7 110 124 110 98 61 40.0 93.5 80.5 57.0 33.7 108 122 108 96 60 39.5 93.0 80.1 56.4 32.7 107 120 107 95 59 39.0 92.5 79.8 55.7 31.7 106 118 106 94 58 38.6 92.0 79.5 55 30.7 104 117 104 92 57 38.1 91.0 79.2 54.4 2.97 103 115 103 91 56 37.7 90.6 78.8 53.7 28.7 101 114 101 90 55 37.2 90.0 78.6 53.0 27.7 100 112 100 89 54 36.8 89.5 78.2 52.4 26.7 111 87 53 36.3 89.0 77.9 51.7 26.7 110 86 52 35.9 88.0 77.5 51.0 24.7 109 85 51 35.5 87.6 77.2 50.3 23.7 108 84 50 35.0 87.0 76.9 49.7 22.7 107 83 49 34.6 86.5 76.6 49.0 21.7 106 82

Hardness Hardness Hardness Strength Hardness

48 34.1 85.5 76.2 48.3 20.7 105 81 47 33.7 85 75.9 47.7 19.7 104 80 46 33.3 84.6 76.6 47.0 18.7 103 80 45 32.9 84 76.3 46.3 17.7 102 79 44 32.4 83.5 74.9 45.7 16.7 101 78 43 32.0 82.5 74.6 45.0 15.7 100 77 42 31.6 82 74.3 44.3 14.7 99 76 41 31.2 81.5 74.0 43.7 13.6 98 75 40 30.7 81 73.6 43.0 12.6 97 75 39 30.3 80 73.3 42.3 11.6 96 74 38 29.9 79.5 73.0 41.6 10.6 95 73 37 29.5 79 72.7 41.0 9.6 94 72 36 29.1 78.5 72.3 40.3 8.6 93 72 35 28.7 78.0 72.0 39.6 7.6 92 71 34 28.2 77.0 71.7 39.0 6.6 91 70 33 27.8 76.6 71.4 38.3 5.6 90 69 32 27.4 76.0 71.0 37.6 4.6 89 69 31 27.0 75.5 70.7 37.0 3.6 88 68 30 26.6 75.0 70.4 36.3 2.6 87 67

Hardness values in brackets are outside the range recommended for Brinell testing in ASTM E-10. The above table is from ASTM E-110 except values for E-scale and Tensile Strength which are not from or according to ASTM Standards. Reprinted from the Annual Book of ASTM Standards, copyright American Society for Testing and Materials.

100 Barr Harbor Drive, West Conshohocken, PA 19428-2959

_____________________________________________________________________________________________________

ASTM Hardness

Minimum Thickness Requirements

Minimum allowable thickness for a corresponding hardness in the respective scales

Minimum Minimum

Rockwell - - - Superficial Rockwell

thickness thickness C A B 15N 30N 45N 15T 30T 45T

in. mm

0.006 0.15 92

0.008 0.20 90

0.010 0.25 88 91

0.012 0.30 83 82 77 86

0.014 0.36 76 78.5 74 81 80

0.016 0.41 86 68 74 72 75 72 71

0.018 0.46 84 66 68 68 64 62

0.020 0.51 82 57 63 55 53

0.022 0.56 69 79 47 58 45 43

0.024 0.61 67 76 94 51 34 31

0.026 0.66 65 71 87 37 18

0.028 0.71 62 67 80 20 4

0.030 0.76 57 60 71

0.032 0.81 52 62

0.034 0.86 45 52

0.036 0.91 37 40

0.038 0.96 28 28

0.040 1.02 20

Reprinted from the Annual Book of ASTM Standards, copyright American Society for Testing and Materials.

100 Barr Harbor Drive, West Conshohocken, PA 19428-2959

The above tables are from ASTM E 18.

- -

Quick Set-Up Guide

Take advantage of our great tech support team!

It is highly recommended that you contact us as soon as you receive your MET.

We will get you up and running in minutes.

Your MET-U1A has been Opened, Inspected and Calibrated to perform at Optimum

Accuracy and Repeatability. If you have any questions, please call Tech Support.

Calibrated in HRC Scale (Steel) Scale Selection = HRC

Note: Your hardness tester has had all parameters pre-programmed to read in the hardness scale and material for your personal application. If this is the scale you will be testing in, you do not need to go through all of the steps to set parameters for the MET. You can begin your testing procedures immediately. However, you should spend some time getting acquainted to the usage and methodology of the UCI transducer and related components.

a) Power unit on by pressing the Ð button. This will bring you to the “archive”

screen.

b) Press the Ð button again and that will put you in the measurement screen. c) Place the UCI transducer on the top of one of the supplied test blocks. Hold the

footing at the bottom of the transducer firmly flat against the block. This must be held extremely steady during this test procedure.

d) Gently Press down on the transducer until you feel the diamond tip touch the

block. At that point, using more force, press down further on the transducer until you feel it bottom out. Be sure to hold the transducer steady. At that moment, the transducer symbol on the display will stop blinking and will stay lit. This tells you that you have made contact and the test is being performed. After approx. 3-4 seconds, the tester will beep and give you the hardness value on the display.

Tech Support Hotline: (201) 896-0691

Main Headquarters: U.S.A

Phase II Machine & Tool, Inc.

283 Veterans Blvd Carlstadt, NJ. 07072 USA Tel: (201) 933-6300 Fax: (201) 933-3801 General E-Mail: phase2@comcast.net

BEIJING, CHINA

Phase II Measuring Instruments (Beijing) Ltd.

Room 1204,Bldg 13,Yong Tai Yuan,Qing He,Haidian District, Beijing 100192,China

Tel:+86-10-82752121

Fax:+86-10-82750352 General E-mail: info@phase2china.com.cn

MEXICO

Phase II de Mexico

Calle A No. 4 Promer Piso Col. San Marcos Azcapotzalco C.P 02020 Mexico Tel: 011-525-5538-39771 Fax: same General E-mail: phase2mexico@hotmail.com

VENEZUELA

Phase II Herramientas Universales EDCM. CA.

Av. Francisco Lazo Marti CC Plaza Santa Monica PB Local Santa Monica, Caracas 1040 Venezuela Tel: 212-690-28-21 Fax: 212-693-29-16 E-mail: edcphm@movistar.net

phase II+ MET-U1A, MET-UDA Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual