phase II+ PHT-1800 User manual

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Model No. PHT‐1800
Operation Manual

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1 Overview....................................................................................................................
31.1 Advantages ........................................................................................................................
3
1.2 Main Application &Testing Range ...................................................................................
3
1.2.1 Main Application ...........................................................................................................
3
1.2.2 Testing Range.................................................................................................................
3
1.3 Technical Specifications ...................................................................................................
4
1.4 Configuration ....................................................................................................................
5
1.5 Working Conditions ..........................................................................................................
5
2 Structure Feature &Testing Principle ....................................................................
62.1 Structure Feature ...............................................................................................................
6
2.1.1 D Type Impact Device ...................................................................................................
6
2.1.2 Different Types of Impact Device ..................................................................................
7
2.2 Main Screen ......................................................................................................................
7
2.3 Keypad Definitions ...........................................................................................................
8
2.4 Leeb Hardness Testing Principle. ......................................................................................
8
3 Preparation ................................................................................................................
93.1 Instrument Preparation and Inspection .............................................................................
9
3.2 Impact Device Selection ...................................................................................................
9
3.3 Preparation of the Sample Surface ....................................................................................
9
4 Testing Program .....................................................................................................
11 4.1 Start-Up ...........................................................................................................................
11
4.2 Loading ...........................................................................................................................
11

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4.3 Localization ....................................................................................................................
11
4.4 Testing .............................................................................................................................
11
4.5 Read Measured Value .....................................................................................................
12
4.6 Notification .....................................................................................................................
12
5 Operation Detail .....................................................................................................
12 5.1 Power On/Off ..................................................................................................................
12
5.2 Material Setting ..............................................................................................................
13 5.3 Hardness/Strength testing
............................................................................................... 14 5.4 Impact Direction
Setting ................................................................................................. 14
5.5 Average Times Setting ....................................................................................................
14
5.6 Data logging ....................................................................................................................
14
5.2.1 Viewing stored file/Group ............................................................................................
14
5.2.2 Clearing selected file/Group ........................................................................................
15
5.7 Print Report
..................................................................................................................... 15
5.8 System Reset
................................................................................................................... 16
5.9 EL Backlight
................................................................................................................... 16
5.10Auto Power Off
............................................................................................................. 16
5.11Battery Replacement
..................................................................................................... 16
5.12Connecting to a Computer
............................................................................................ 16
5.13Error Code Reference
................................................................................................... 16 6 Maintenance &
Servicing ...................................................................................... 17
6.1 Impact Device Maintenance ...........................................................................................
17
6.2 Instrument Maintenance Program ...................................................................................
17 6.3 Fault Analysis & Evaluation
........................................................................................... 17
6.4 Notice ofTransport and Storage Conditions ................... Error! Bookmark not defined.
APPENDIX .................................................................................................................
18 Table 1 ..................................................................................................................................
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Table 2 ..................................................................................................................................
19
Table 3 ..................................................................................................................................
20

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Table 4 .................................................................................. Error! Bookmark not defined.

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1 Overview
1.1 Advantages
⚫Wide measuring range. Based on the principle of
Leeb hardness testing theory.
Capable of measuring Leeb hardness of all metallic
materials.
⚫Large screen LCD, showing all functions and
parameters. With background light.
⚫Seven impact devices are available for special
application. Automatic identification of impact device upon
plug in.
⚫Test at any angle, even upside down.
⚫Direct displayof hardness scales HRB, HRC, HV, HB,
HS, HL
⚫Large memory could store 100 groups (Relative to
average times 1‐32 ) of information including
single measured value, mean value, impact direction, impact
times, material and hardness scale etc.
⚫Battery symbolshowing the capacity of the battery.
⚫User calibration function.
⚫Output via USB port. Micro printersupport.
⚫Compact plastic case, suitable for use under poor
working conditions
⚫Continuous working period of no less than 100
hours with two alkaline batteries(AA size)；Auto power
off.
⚫Outside dimensions：150×74×32 mm ⚫Weight：245g
1.2 Main Application &Testing Range
1.2.1 Main Application
⚫Die cavity of molds
⚫Bearings and other parts
⚫Failure analysis of pressure vessel, steam generator
and other large equipment
⚫Large, hard work piece
⚫Testing of installed machinery and permanently
assembled parts.
⚫Material identification based upon hardness range
⚫Rapid testing in large range and multi‐measuring areas
for large‐scale work piece
1.2.2 Testing Range
Testing range refer to Table 1 and Table 2 in
the Appendix.

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1.3 Technical Specifications
⚫Error and repeatability of displayed value see Table1‐
1 below.
Table 1‐1
No.
Type of
impac
t
devic
e
Hardness value of
Leeb standard
hardness
block
Error of
displayed
value
Repeatability
1
D
760±30HLD
530±40HLD
±6 HLD
±10 HLD
6 HLD
10 HLD
2
DC
760±30HLDC
530±40HLDC
±6 HLDC
±10 HLDC
6 HLD
10 HLD
3
DL
878±30HLDL
736±40HLDL
±12 HLDL
12
HLD
L
4
D+15
766±30HLD+15
544±40HLD+15
±12 HLD+15
12
HLD+
15
5
G
590±40HLG
500±40HLG
±12
HLG
12 HLG
6
E
725±30HLE
508±40HLE
±12 HLE
12 HLE
7
C
822±30HLC
590±40HLC
±12 HLC
12 HLC
⚫Measuring range：HLD（170～960）HLD
⚫Measuring direction：0~360°
⚫Hardness Scale：HL、HB、HRB、HRC, HV、HS
⚫Display：4‐Digit LCD
⚫Data memory：max. 100 groups（relative to impact
times 1‐32）
⚫Working power：3V（2 AA size alkaline batteries）
⚫Continuous working period：about 100 hours （With
backlight off）⚫Communication interface：USB

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1.4 Configuration
Table 1-2
No.
Item
Quantity
Remarks
Standard
Configuration
1
Main unit
1
2
D type impact device
1
With cable
3
Standard test block
1
4
Cleaning brush (I)
1
5
Small support ring
1
6
Alkaline battery
2
AA size
7
Manual
1
8
Instrument package
case
1
9
Optional
Configuration
11
Cleaning brush (II)
1
For use with G
type impact
device
12
Other type of impact
devices and support
rings
Refer to Table 3
and Table 4 in the
appendix.
14
Communication cable
1
16
Print cable
1
1.5 Working Conditions
Working temperature：0℃～＋40℃；
Storage temperature：-30℃～＋60℃
Relative humidity: ≤90％；
The surrounding environment should avoid any vibration, strong magnetic
field, viscous fluids, corrosive medium and heavy dust.
2 Structure Feature &Testing Principle
2.1 Structure Feature

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1. Main unit 2.Keypad 3. LCD display 4 Socket of USB
5. Socket of impact device 6. Impact device 7 Label 8. Battery cover
2.1.1 D Type Impact Device
12 3 4 5 6 7
1 Release button 2 Loading tube 3 Guide tube 4 Coil unit
5 Connection cable 6 Impact body 7 Support ring
4
1
2
3
5
6

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2.1.2 Different Types of Impact Device
DC DL C D+15 E G
2.2 Main Screen
Below is the main display screen：
Instruction of the Main Display Screen:
Material：The present presetting material.
Impact direction：The present impact direction.
Hardness scale：Hardness scale of the present measured value.
Battery information ：Showing the remaining capacity of the battery.
Measured value：Display present single time measured value（without
showing average icon）， or display the present mean value (with average
icon prompting). “-HI-”means over conversion value or measure range. “-
LO-”means lower than conversion value or measure range.
Impact times：Times that have been impacted.
Average Icon：It will appear when showing the mean value of the measured
values after reaching the presetting impact times.
Memory Icon: It appears when operating the instrument memory.
2.3 Keypad Definitions
Table 2-1

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Turn on/off the
EL
backlight
Data Save or Data
Delete
Turn the
instrument
on/off
Material
Selection
Hardness/Strength
switch
Plus or Up
Hardness
Scale
Selection
Direction change
Minus or Down
Print data
Impact Times set
Data logging or
Enter
⚫Press key to store present group of measured valueinto memory. This
operation is only valid after displaying the mean value.
⚫Press key and could display single measured value.
⚫Press key could switch on of off the background light of LCD.
⚫Press key to set the impact direction.
⚫Press keyto change the impact times in one group. The impact times item
will flash when first pressing the key, and then the impact times value will
plus or minus when pressing the or key. Press key finally to exit from
changing the impact times process.
⚫Press key to change the hardness scale.
⚫Press key to change the material. Presetting hardness
scale recovers to HL automatically after material presetting changed.
⚫Press key to switch between hardness test and strength test. Only D
and DC type of impact device has the function of strength testing. So
hardness testing is the only selection if the impact device is not D or DC
type.
⚫Press key to print out the measured values after measurement.
2.4 Leeb Hardness Testing Principle
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 itshardness properties. Forordinary metal, conversion curves ofhardness
HL versus other standard static hardness (HB, HV, HRC, etc.) are available, enabling you to
convert HL into other hardness values.
3 Preparation
3.1 Instrument Preparation and Inspection
Verification of the instrument is performed by using a standard calibrated
test block. The error and repeatability of displayed value should be within the

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regulation of Appendix table 2. The instrument and impact device must be
calibrated using a standard hardness block prior to first usage or having reset
the instrument system.
Press key, meanwhile pressing down the key to power on the
system. Then the user calibration screen shows as left below.
Test for 5 points on the standard hardness block. It would display the
average measured value after
measuring 5 times. Press key to
change to its nominal value.
Press key to confirm the
calibration finally. Or press the key to
cancel the calibration.
Range of adjustment: ±30HL.
The measurement parameters, including the material setting, the
hardness scale and the impact direction can’t be changed during calibration.
Note：For Verification, Take 5 tests around the test block and get your
average. This average value should be within the acceptable tolerance of the
test block value. If this value exceeds the allowable tolerance of the test block,
a calibration should be performed.
3.2 Impact Device Selection
Refer to Appendix Table 1 and Table 3 for selection of impact device.
3.3 Preparation of the Sample Surface
Preparation for sample surface should conform to the relative requirement
in Appendix Table 3.
⚫Test surfaces should be at or close to room temperature for optimal
performance
To eliminate hardness errors resulting from the roughness of a
sample’s surface when using impact device D, DC or D+15, the test
surface should be polished until its roughness Ra is no more than 2 m.
PHASE II SRG-2000 handheld surface roughness tester or any other
suitable instrument may be used to measure the surface roughness of the
samplematerial. The test surface should be clean and free from oil stains.
⚫Support of test sample. Support is not necessary for heavy samples.
Lighter weight parts must be set on the flat, smooth surface of a larger

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mass metal object. The sample must be completelystationary and without
any gaps between the two parts.
⚫Curved surface: The best testing surface of sample is flat. When the
curvature radius R of the surface to be tested is smaller than 30mm (D,
DC, D+15,C, E and DL type of impact device) and smaller than 50mm (G
type of impact device), the small support ring or the shaped support rings
should be chosen.
⚫The sample should have enough mass. Minimum thickness of sample
should conform to Table 3.
⚫For the sample with hardened layer on surface, the depth of hardened
layer should conform to Table 3.
⚫Coupling. Light-weight sample must be firmly coupled to a part with much
larger mass. Both coupled surface must be flat and smooth. The impact
direction must be vertical to the coupledsurface. When the sample is a big
plate, or long rod, it can be deformed and become unstable, even though
its weight and thickness is within allowable ranges, and accordingly, the
test value may not be accurate. So the sample should be reinforced or
supported at its back.
⚫AVOID any object that has a strong Magnetic Force.
4 Testing Program
4.1 Start-Up
⚫Insert the plug of the impact device into the socket of impact device on the
instrument.
⚫Press the key，now power is on. The instrument is in working mode.
4.2 Loading
Pushing the loading-tube downwards until contact is felt. Then allow it to
slowly return to the starting position or using other method locking the impact
body.

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4.3 Placement
Press the impact device supporting ring firmly on the surface of the sample,
the impact direction should be vertical to the testing surface.
4.4 Testing
⚫Press the release button on the upside of the impact device to test. The
sample, the impact device as well as the operator are all required to be
stable. The action direction should pass the axis of the impact device.
⚫Each measured area of the sample usually need 3 to 5 times of testing
operation to obtain an average. Theresult data dispersion should notmore
than mean value±15HL。
⚫The distance between any two impact points or from the center of any
impact point tothe edge of testing sample should conform to the regulation
of Table 4-1.
Table 4-1
Type of Impact
Device
Distance of center of the
two indentations
Distance of center of the
indentation to sample edge
Not less than (mm)
Not less than (mm)
D、DC
3
5
DL
3
5
D+15
3
5

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G
4
8
C
2
4
4.5 Read Measured Value
After each impact operation, the LCD will display the current measured
value, impact times plus one, a beep will alert you if the measured value is not
within the valid range. When reaching the presetting impact times, the beep
will alsonotify you. After 2 seconds, the buzzer will alert a short howl, and
display the mean measured value.
4.6 Notification
⚫Replacing the impact device must be done during Power off. Otherwise
the main body could not identify the type of the impact device, and it may
damage the circuit board of the main body.
⚫You can only save data after the average has been obtained.
⚫Only type D and type DC of impact device have the function of tensile
strength test option. You can not change the setting to strength testing
when using other types of impact device.
⚫Not all materials can convert to all hardness scale value. The hardness
scale is reset to HL automatically after changing the material. So select
material prior to changing the hardness scale.
5 Operation Detail
5.1 Power On/Off
Plug in the impact device FIRST. Press to power on the instrument. The
unit will automatically detect the type of the impact device during power up,
and would display this information on the screen. Users should pay attention
to the probe type displayed on the screen. After pausing for several second,
the screen will then enter the main testing screen as shown below:

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The instrument canbe turned off bypressing the key while it is working.
The tool has a special memory that retains all of its settings even when the
power is off.
5.2 Material Setting
Press key to change the material to the one you want to preset.
Hardness scale defaults to HL automaticallyafter material presettingchanged.
Please select material first, then select hardness scale.
You can select your material among the following selections: Steel and
Cast Steel、Cold Work Tool Steel、Stainless Steel、Gray Cast Iron、
Nodular Cast Iron、Cast Aluminum Alloys、Copper-Zinc Alloys、Copper-
Aluminum Alloy and Wrought Copper. The relationship between the material
number displayed on the instrument screen and the material is as follows:
Table 5-1
Material No.
Material
Material No.
Material
0
Steel and cast steel
5
Cast aluminium alloys
1
Cold work tool steel
6
Copper-Zinc alloys
2
Stainless steel
7
Copper –Aluminium alloys
3
Gray cast iron
8
Wrought copper
4
Nodular cast iron
In strength testing, the following materials are selectable: Mild Steel、High-Carbon
Steel、Cr Steel、Cr-V Steel、Cr-Ni Steel、Cr-Mo Steel、Cr-Ni-Mo Steel、Cr-Mn-Si Steel
、Super Strength Steel and Stainless Steel. The relationship between the material
number displayed on the instrument screen and the material is as follows:
Table 5-2
Material No
Material
Material No
Material
0
Mild steel
5
Cr-Mo steel
1
High carbon steel
6
Cr-Ni-Mo steel
2
Cr steel
7
Cr-Mn-Si steel
3
Cr-V steel
8
Super strength steel
4
Cr-Ni steel
9
Stainless steel
5.3 Hardness/Strength testing
Press key to switch between hardness testing and strength testing
(бb) .
Note: Only D and DC type of impact device has the function of strength
testing. So hardness testing is the only selection if the impact device is
not D or DC type.
In hardness testing, Press key to change the hardness scale. The
supported hardness scale includes: HL, HV, HB, HRC, HS and HRB.

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Note：
⚫This displays the valid hardness scale for the present selected
impact device and material. It would not display the hardness scale
which is not valid.
⚫Please select material first, then select hardness scale.
⚫Presetting hardness scale recovers to HL automatically after
presetting material is changed.
5.4 Impact Direction Setting
Press the key to move to the impact direction that you will work in.
5.5 Average Times Setting
You could modify average times within the range of 1 to 32 as following:
1) Press key in testing state. The impact times item will begin to flash;
2) Press key to set the average times to the number you
want.
3) Press key finally to exit from the operation.
5.6 Data logging
At most one hundred files (F00-F99, one group as one file) can be stored
inside the gauge. By simply pressing the key after a new measurement
finishes-the screen showing the “AVE” icon, the measured hardness/strength
group values will be saved to memory. The new saved file is appended as the
last file of the memory. This function provides the user with the ability to
view/delete a file/group previously saved in memory.
5.6.1 Viewing stored file/Group
To view the memory data, follow the steps:
1) Press the keyto activate the data logging function.The memoryicon will
appear. It will display the current file name, the test parameter of the group
data and the mean value of the group. If there is no data in the memory, it
will display: <E04>, which means no memory data, and then return back.
2) Use the key and the key to select the desired file to view.
3) Press the key to see details of that group data.
4) Use the key and the key to view each single measured data in
that group while viewing details.
5) Press the key to return to previous screen at any time during data
logging.
5.6.2 Deleting selected file/Group
The user may require deleting a file from the instrument memory. The
procedure is outlined in the following steps.
or

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1) Press the key to activate the data logging function. The memory icon
will appear. It will display the current file name, the test parameter of the
group data and the mean value of the group. If there is no data in the
memory, it will display: <E04>, which means no memory data, and then
return back.
2) Use the key and the key to scroll to the file that will be deleted.
3) Press the key on the desired file. It will automatically delete the file, and
display “-DEL”.
4) Press the key, at any time, to exit the data logging function and return to
measurement mode.
Note：Do not shut downthe instrument while deleting data. It could lead
to loss of all data if shut down while deleting.
5.7 Print Report
At the end of the inspection process, or end of the day, the user may
require the readings be printed.
Before printing, please insert one connection plug of the print cable into
the socket on the upper left side of the main body, and insert the other plug
into the communicationsocket of your PC. You canprint outthe measurement
result immediately after each testing process, by easily pressing the key.
If you want to print the data stored in the instrument memory, then follow
these steps:
1. Press the key to activate the data logging function. The memory icon will
appear.
2. Use the key and the key to select the desired file.
3. Press the keyto print the selected file. This operation will send all the data
in current file to the mini printer via RS232 port and print them out.
4. Pressthe keytoexitthedata loggingfunctionsandreturntomeasurement
mode.
5.8 System Reset
Press down the key while powering on the instrument will restore factory
defaults. The only time this might possibly helpful is if one of the parameters
in the gauge were somehow corrupted.
5.9 EL Backlight
With the EL background light, it is convenient to work in darker conditions.
Press key to switch on or switch off thebackground light at any moment as
you need after power on. Since the EL light will consume more power, turn on
it only when necessary.

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5.10 Auto Power Off
The instrument features an auto power off function designed to conserve
battery life. If the tool is idle (neither measuring nor any key operation) for 5
minutes, it will turn itself off. Before powering off, the LCD display of the
instrument will continue flashing for 20 seconds. To prevent the unit from
powering off you can press any button Except Power.
When the voltage of the battery gets too low, the display will show <E00>,
then power off automatically.
5.11 Battery Replacement
The PHT-1800 uses standard AA batteries. After several hours of usage,
the battery symbol on the screen will begin to show less dark
tabs which is shown as . When the batteries are drained, the
battery symbol will be shown as and will begin to flash. When this
occurs, the batteries should be replaced.
Pay attention to the polarity of the batteries!
Please properly dispose of used batteries accordingly.
5.12 Connecting to a Computer
The Instrument is equipped with a USB serial port. Using the output cable
the gauge has the ability to connect to a computer, or external storage device.
Measurement data stored in the memory of the gauge can be transferred to
the computer through the USB port.
5.13 Error Code Reference
Error Code
Explanation
Error Code
Explanation
E00
Replace Battery
E05
Can’t print
E01
Value out of range
E06
E02
Measurement
not finished
E07
E03
Data already saved
E08
E04
No memory data
E09
6 Maintenance & Servicing
6.1 Impact Device Maintenance
⚫After the impact device has been used for 1000--2000 times, please use
the nylon brush provided to clean the guide tube and impact body. When
cleaning the guide tube, unscrew the support ring first, then take out the
impact body, spiral the nylon brush in counter-clockwise direction into the
bottom of guide tube and repeat a few times to remove any dust or small
chips inside the tube.T hen install the impact body and support ring again.
⚫Release the impact body after use.
⚫NEVER USE LUBRICANT OR CLEANERS ON IMPACT DEVICE!

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6.2 Instrument Maintenance Program
⚫When testing in the Rockwell C hardness scale your error amount should
not exceed 2 Rockwell C points. Changing the spherical test tip or impact
body should be considered.
⚫Warranty will be VOID if unit has been dismantled by someone other
than an authorized repair person
6.3 Fault Analysis & Evaluation
Fault Appearance
Fault Analysis
Repair method
Failure to power on
Low or dead Battery
Replace the batteries
No measured value
Impact device cable
failure
Replace the cable
APPENDIX
Table 1
Material
Method
Impact device
D/DC
D+15
C
G
E
DL
Steel and cast steel
HRC
20～
68.5
19.3～
67.9
20.0～
69.5
22.4 ～
70.7
20.6～
68.2
HRB
38.4～
99.6
47.7～
99.9
37.0～
99.9
HB
127～
651
80～638
80～683
90～646
83～663
81 ～
646
HV
83～976
80～937
80～996
84～1042
80 ～
950
HS
32.2～
99.5
33.3～
99.3
31.8～
102.1
35.8～
102.6
30.6～
96.8
Cold work tool
steel
HRC
20.4～
67.1
19.8～
68.2
20.7～
68.2
22.6 ～
70.2
HV
80～898
80～935
100～
941
82～1009
Stainless steel
HRB
46.5～
101.7
HB
85～655
HV
85～802
Grey cast iron
HRC
HB
93～334
92～326
HV
Nodular cast iron
HRC