AMTAST AMT212 User manual

AMT212 Leeb Hardness Tester
Instruction Manaul
AMTAST USA INC

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Contents
1 General description............................................................. 3
1.1 Features.................................................................................... 3
1.2 Main Application and Testing Range......................................... 3
1.3 Types and specification............................................................. 6
1.4 Operating conditions:................................................................ 9
2 Structure features and Testing principle........................... 10
2.1 Structure features.....................................................................10
2.2 Testing principle......................................................................12
3 Technical capabilities ........................................................ 12
3.1 Specifications..........................................................................12
3.2 Dimension size and weight.......................................................13
4 Testing............................................................................... 13
4.1 Preparation and Inspection prior to testing ................................13
4.2 Testing ....................................................................................15
5 Special prompts................................................................. 18
6 Detail Testing procedures.................................................. 19
6.1 Start-up...................................................................................19
6.2 Turn On or turn off ..................................................................19
6.3 Testing ....................................................................................19
6.4 Menu structure diagram...........................................................22
6.5 Measuring condition setting .....................................................23
6.6 Print function...........................................................................25
6.7 Memory manager ....................................................................27
6.8 System Set ..............................................................................28
6.9 About software ........................................................................28
6.10 Software calibration...............................................................29
6.12 Turn off the power automatically............................................30
6.13 Battery Charge.......................................................................30
6.14 Battery Replacement..............................................................31
6.15 Paper Loading .......................................................................32
6.16 The connection of data communication cable..........................32

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7 Trouble shooting................................................................ 33
8 Maintenance...................................................................... 33
8.1 Impact device..........................................................................33
8.2 Standard maintenance procedures.............................................33
9. Notice of Transportation and Storage.............................. 33
10. Non-warranty part......................................................... 33

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1 General description
1.1 Features
⚫Color display (320×240 TFT) with adjustable backlight
⚫Converts to all common hardness scales (HV ,HB,HRC,HRB,HRA,HS),
and real time display HL value.
⚫Probe plug and test. Support hot plug, the probe can be set automatically
and automatic recognition function.
⚫Built in high capacity rechargeable lithium battery and charging control
circuit. Continuous working period of no less than 150 hours.
⚫Instrument with automatic sleep, automatic shutdown and other power
saving features.
⚫Menu operating, the operation is easy and convenient.
⚫With USB interface can be convenient, fast data exchange and parameter
settings.
⚫Equipped with 7 types of impact devices which need not to be
recalibrated when changing them, the system can identify the type of
impact device automatically.
⚫Max 500 groups（impact times:32～1）of data can be stored at internal
non volatile data storage.
⚫Upper and lower limit of hardness can be preset; When the tested value
exceeds the limits, alarm will send out automatically to make convenient
for the requirements of batch measurements.
⚫Test values software calibration function.
⚫Material of “cast steel” is added; HB values can be read out directly
when D/DC impact device is used to measure “cast steel” work piece.
⚫Thermal printer integrated, convenient for in field printing.
⚫Software of PC can be installed according to the requirements of user,
the function will be more powerful to satisfy the more strict demands of
quality control and management.
1.2 Main Application and Testing Range
1.2.1 Main Application
⚫The assembled machinery and permanently installed parts
⚫Die cavity of molds
⚫Heavy work piece
⚫Failure analysis of pressure vessel, steam turbo-generator set and other
equipment

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⚫Narrow testing space where work piece installed
⚫Bearings and other parts
⚫Cases which require the test result with normalized original recording
⚫Material identification of the metal material warehouse
⚫Quick tests of large range and multipoint measuring positions for heavy
workpiece
1.2.2 Testing Range
Testing range see table 1 and table 2.
Table 1
Material
Hardness
method
Impact device
D/DC
D+15
C
G
E
DL
Steel and
cast steel
HRC 17.9～
68.5
19.3～
67.9
20.0～
69.5 22.4～ 70.7
20.6～
68.2
HRB 59.6～
99.6 47.7～
99.9 37.0～
99.9
HRA 59.1~85.
8 61.7～ 88.0
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
Hammered
steel HB 143~650
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
Table 1