Details

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MITUTOYO – Rebound Type Hardness Tester
Brand: Mitutoyo
Model: HARDMATIC HH-411
 
Specification:

Order No.	810-298(ASTM) 810-299(JIS)
Model	HH-411
Detector	Carbide ball is used at the tip of the impact hammer (D type: ASTM A956 specification)
Display	7 segments, LCD display
Hardness display range	Leeb hardness: 1 to 999HL
Measuring accuracy	800±12HL For measurements performed using a testing method described in the user’s manual with a Mitutoyo-recommended test block firmly mounted on a qranite surface base
Display range (The display range varies depending on the conversion table used.)	Vickers hardness Brinell hardness Rockwell hardness (C scale) Rockwell hardness (B scale) Shore hardness Tensile strength	: 43 to 950HV : 20 to 894 HB : 19.3 to 68.2 HRC : 13.5 to 101.7HRB : 13.2 to 99.3HS : 499 to 1996 MPa
Function	Automatic angle correction Offset Pass or failure decision function Data save: 1800 Points Conversion (details in display range) Statistical calculation function (mean, maximum, minimum, variation, standard deviation) Auto-sleep Dotting count display
Specimen requirements	Min. thickness: 5mm; mass: 5kg or more (However, specimens with a mass between 0.1 and 5kg can be tested if fixed to a strong support). Test points: At least 5mm from specimen edges and at intervals of at least 3mm. Surface roughness: up to Ra 2μm
External connection interface	For printer: Serial interface (compatible with the RS-232C standard), Digimatic interface ( 1 each; simultaneous output is available)
Power supply	Two AA alkaline batteries (battery life: Approx. 70 hours in continuous use). AC adapter (special accessory)
Operating environment	Temperature: 0 to 50°C     Humidity: 95% (No condensation)
External dimensions	Display: Approx. 70(W) x 110 (D)
Mass	Detector: Approx. Φ 28 x 175mm     120g

 
 
Standard Component:

Order No	Item	Description	Quantity
810-292	Display UD-410	-	1
-	AA alkaline battery	-	2
-	User’s manual	-	1
-	Strap	-	1
810-287	Detector UD-411	D type Approx. Φ28 x 175 mm Approx. 120g (tip diameter Φ 22mm)	1
-	Impact hammer	-	1
19BAA457	Carbide ball	Installed in the impact hammer	1
19BAA459	Wrench	For replacement of carbide ball	1
19BAA451	Support ring	Φ 22mm	1
19BAA452	Support ring (Small)	Φ 14mm	1
19BAA258	Cleaning brush	-	1
-	Storage case for testing machine	For display and detector	1
19BAA265	Hardness standard block	800 HLD-equivalent (Φ90mm, t55mm, 2.7kg)	1
-	Storage case for testing machine	-	1

Note:
The HH411 cannot be used for hardness measurement of elastic materials such as rubber. Stiffness of the measurement target may affect the measurement result. Particularly avoid the measurement of sheets.