Portable Hardness Tester DH-100

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Measuring materials: steel and cast steel, alloy tool steel, stainless steel, gray cast iron, nodular cast iron, cast aluminum-alloy, copper zinc alloys (brass), an alloy of copper and tin, copper (bronze), forged steel testing features； Palm size for narrow space； Large screen LCD, showing all functions and parameters. With background light.

FEATURES
-	Wrist type Hardness Tester
-	Easy to read menu operation
-	Large LCD display with backlight
-	For most metals
-	Based on the Hardness HL value, conversion can be performed to HRB, HRC,HV, HB, HS and Tensile strength
-	Impact devices D, DC, DL, C,D+15, and G are available for special applications
-	Test at any angle, even upside down
-	RS232 output and internal memory in a batch of 1250 average readings
-	High accuracy ±0.5%
-	Works on 4 standard AAA batteries
-	Auto shutdown after 2 minutes
-	Conforming to ASTM A 956

Specification
Hardness Parameter		HL, HRC, HRB, HV, HB,HS
Measuring Range		See table below
Display		128 x 64 LCD with backlight
Display functions D		Hardness Scale, Hardness Value, average value, impact direction, Max/Minvalue, Material, battery life
Accuracy		Within +/- 0.5% (at HLD=800)
Memory		1250 group
Standard Impact device		D
Optional Impact Device		C / D+15 / DC / DL /G
Output		RS232
Testable work piece	-	Thickness coupled: Minimum 3 mm or more (Except with Impact device G:10mm)
	-	Mass: 5kg or more (2-5kgon solid support ,﹤2kgwith couplant paste)
	-	Surface roughness: Ra 10
	-	Radius (convex/concave): Rmin=30mm or more (﹤30mmwith support ring )
	-	Test Points: 5mm or more from the edge of the sample, 3mm or more to each of thetested points.
Battery type		2 AAA Batteries
Operating temperature		-20℃ ~ +50℃
Dimensions		108mm×61mm×25mm
Weight		200g

Range reference

Material	HL	HRC	HRB	HB	HS	HV
ST & Cast ST	300-900	20.0-68.0	38.4-99.5	80-647	32.5-99.5	80-940
CWT Steel	300-840	20.4-67.1				80-898
Stainless	300-800	19.6-62.4	46.5-101.7	85-655		85-802
GC Iron	360-650			90-334
NC Iron	400-660			131-367
Cast Alum.	174-560			20-159
Brass	200-550		13.5-95.3	40-173
Bronzes	300-700			60-290
Copper	200-690			45-315

Standard Delivery
-	Main unit
-	Impact device D
-	Certified test block with HLD value
-	Software and cable
-	Cleaning brush
-	Small supporting ring
-	Calibration certificate
-	Leather wrist strap
-	Carrying case
-	User manual