Checkline SH-21 Metal Hardness Tester - Rockwell HRC

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Displays hardness in HV (Vickers), HRC (Rockwell), HS (Shore) and HB (Brinnel) units.

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The Checkline SH-21 (now SH-21A) is designed for precise measurement of hardness in difficult to reach areas of compact parts, metal casts, gears, crank shafts, component parts and more. It is ideal for inspection and maintenance of large-scale structures, vehicles, ships, steel towers, bridges, aircraft.

Kit Contents

SH-21 Metal Hardness Tester - Rockwell HRC Probe Hardness test block (approx 55HRC) 1.5m probe cable 100-240V AC Adapter Battery charger 1 Li-On battery Carrying case

Features

• Fast action, measures hardness in seconds.
• Practically undetectable measurement technique leaves indentations of 0.1mm2 allowing use on finished products.
• Displays hardness in HV (Vickers), HRC (Rockwell), HS (Shore) and HB (Brinnel) units.
• Measurement can be converted to tensile strength, N/mm2
• Readings not affected by surface underneath test sample.
• 2000 Reading data memory can be transferred to PC.

Specifications

Measuring Indentor	Diamond indenter for Micro-Vickers (facing-to- surface angle of 136°)
Testing Force	SH-21-E2: Approx 2kgf (roughly 20N) SH-21-E1: Approx 1kgf (roughly 10N) SH-21-E4: Approx 4kgf (roughly 40N) (manual probe only)
Measuring Range	Rockwell hardness: HRC 10.0 - 70.0 Vickers hardness: HV 100 - 999 Shore hardness: HS 20.0 - 99.9 Brinell hardness: HB 85 - 550
Resolution	1HV, 0.1HRC, 0.1HS, 1HB, 1N/mm2 (tensile strength)
Repeatability	HRC : ± 1.0HRC HV : ± (3%rdg)HV HS : ± 1.0HS HB : ± (3%rdg)HB
Applicable test materials	Steel is the principle material, other metallic materials may also be measured by calibrating against a standard hardness test block.
Display	Digital display (LCD, 4 digits) with EL backlight
Temp limit	0-50 C Ambient
Power	AC adapter(100 - 240V) or lithium ion rechargeable battery
Battery Life	5 hours using backlight, 8 hours without backlight
Dimensions	Display: 97(W) x 50(D) x 170(H) mm Probe diameter: 40mm, length: 164mm
Weight	Display: approx. 400g (including battery) Probe and cable: approx. 400g
Carrying case dimensions	400(W) x 220(D) x 140(H) mm
Output	RS-232C output used for data transmission or printing
Frequency	Motorized / manual switchover type approx 69-71kHz Manual type (optional) approx 38-40kHz
Conversion	HV, HRC, HS, HB, N/mm2 according to JIS B 7731, ASTM E 140, DIN 50150
Warranty	1 Year

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