Model Number

MH210

Hardness tester MH210

l        Developed Model of HL200

l        Compact metal case，suitable for use under poor working conditions. Test at any angle, even upside down.

l        Wide measuring range. It can measure the hardness of all metallic materials. Direct display of hardness scales HRB, HRC, HV, HB, HS, HL

l        Large screen(128×64 dot matrix LCD), showing all functions and parameters. With EL background light.

l        Software calibration function.

l        Software to connect with PC via RS232 port. Micro printer support.

l        Outline :132*76.2mm    Weight：345g

Configuration:

	No.	Item	Quantity	Remarks
Standard Configuration	1	Main body	1
	2	D type impact device	1	With cable
	3	Standard test block()	1
	4	Cleaning brush	1
	5	Small support ring	1
	6	Alkaline battery	2	AA size
	7	Manual	1
	8	Instrument case	1
	9	DataPro software for MH210	1
	10	Communication cable	1
	11	Tool for battery cover	1
	12	Belt	1
	13	Min-printer	1
	14	Print cable	1
Optional Configuration	11	Cleaning brush (II)	1	For use with other type of impact device
	12	Other types of impact device	7	Refer to pictures below
	13	Tool for changing impact ball	1
	15	Other types of support ring	1	Refer to pictures below
	16	Other types of impact ball / body	1

Technical Specifications:

l        Error and repeatability of displayed value

No.	Type of impact device	Hardness value of hardness block	Error of displayed value	Repeatability
1	D	760±30HLD 530±40HLD	±6 HLD ±10 HLD	6 HLD 10 HLD
2	D	50±5 HLC 30±6 HLC	±1 HRC ±2 HRC	1 HRC 2 HRC
3	D	700±30HB 500±40HB	±5 HB ±8 HB	5 HB 8 HB

l        Measuring range：

(170-960)HLD,(17-68.5)HRC,(19-651)HB,(80-976)HV,(30-100)HS,(59-85)HRA,(13-100)HRB

l        Measuring direction：360°（↓↖↗↘↙→←↑）

l        Hardness Scale：HL、HB、HRB、HRC、HRA、HV、HS

l        Display：dot matrix LCD，128×64 dots

l        Data memory：max. 500 groups（relative to impact times 32～1）

l        Working voltage：3V（2 AA size alkaline battery）

l        Continuous working period：about 50 hours（With backlight off）

l        Communication interface：RS232

Main Application

l        Die cavity of molds

l        Bearings and other parts

l        Failure analysis of pressure vessel, steam generator and other equipment

l        Heavy work piece

l        The installed machinery and permanently assembled parts.

l        Testing surface of a small hollow space

l        Material identification in the warehouse of metallic materials

l        Rapid testing in large range and multi-measuring areas for large-scale work piece

Testing range:

Other type of impact devices

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
	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
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
	HB	131～387			127～364
	HV
Cast aluminium alloys	HB	19～164		23～210	32～168
	HRB	23.8～84.6		22.7～85.0	23.8～85.5
BRASS(copper-zinc alloys)	HB	40～173
	HRB	13.5～95.3
BRONZE(copper-aluminium/tin alloys)	HB	60～290
Wrought copper alloys	HB	45～315
Available type of impact device		DC: Test hole or hollow cylindrical	D+15: Test groove or reentrant surface	C:Test small, light,   thin parts and surface of hardened layer	G: Test large, thick, heavy and rough surface steel	E: Test super high hardness material	DL: Test slender narrow groove or hole

Testing conditions:

Type of impact device	DC(D)/DL	D+15	C	G	E
Impacting energy Mass of impact body	11mJ 5.5g/7.2g	11mJ 7.8g	2.7mJ 3.0g	90mJ 20.0g	11mJ 5.5g
Test tip hardness: Dia. Test tip: Material of test tip:	1600HV 3mm Tungsten carbide	1600HV 3mm Tungsten carbide	1600HV 3mm Tungsten carbide	1600HV 5mm Tungsten carbide	5000HV 3mm synthetic diamond
Impact device diameter: Impact device length: Impact device weight:	20mm 86(147)/ 75mm 50g	20mm 162mm 80g	20mm 141mm 75g	30mm 254mm 250g	20mm 155mm 80g
Max. hardness of sample	940HV	940HV	1000HV	650HB	1200HV
Mean roughness value of sample surface Ra:	1.6μm	1.6μm	0.4μm	6.3μm	1.6μm
Min. weight of sample: Measure directly Need support firmly Need coupling tightly	>5kg 2～5kg 0.05～2kg	>5kg 2～5kg 0.05～2kg	>1.5kg 0.5～1.5kg 0.02～0.5kg	>15kg 5～15kg 0.5～5kg	>5kg 2～5kg 0.05～2kg
Min. thickness of sample Coupling tightly Min. layer thickness for surface hardening	5mm   ≥0.8mm	5mm   ≥0.8mm	1mm   ≥0.2mm	10mm   ≥1.2mm	5mm   ≥0.8mm

Size of tip indentation
Hardness 300HV	Indentation diameter Depth of indentation	0.54mm   24μm	0.54mm   24μm	0.38mm   12μm	1.03mm   53μm	0.54mm   24μm
Hardness 600HV	Indentation diameter Depth of indentation	0.54mm   17μm	0.54mm   17μm	0.32mm   8μm	0.90mm   41μm	0.54mm   17μm
Hardness 800HV	Indentation diameter Depth of indentation	0.35mm   10μm	0.35mm   10μm	0.35mm   7μm	--   --	0.35mm   10μm

Support rings for Shaped Materials:

Other type of support rings