Model 250 Digital Leeb Hardness Tester - 250

Model 250 Digital Leeb Hardness Tester, 1. Based on the Richter, test various metal materials, values are stable; - more info check here: http://www.buymeasuringtools.com/Model-250-Digital-Leeb-Hardness-Tester-10320868/

Quick Brief

Place of Origin: Henan China (Mainland) Brand Name: XINFU Model Number: 250

Specifications and Product Details:

Model 250 Digital Leeb Hardness Tester

Main Features:

Model HL-250 Portable Digital Leeb hardness tester is a economy Leeb hardness tester with a LCD screen and light weight.

1. Based on the Richter, test various metal materials, values are stable;

2. Free conversion between varieties of standard hardness;

3. Lower and upper limits setting with low-high display judge;

4. 8 different kinds of impact device are available; distinguish automatically, no need calibration;

5. 128*64 dot matrix LED display, easy to use under the dark environment;

6. USB interface;

7. Low-power design, auto sleep, auto shutdown;

8. Fully enclosed metal shell, anti-jamming;

9. Alkaline battery with working 100 hours continuously (without backlight).

Technical Specification

Item	Parameter
Display LCD	128 * 64 LCD
Display Functions	Impact direction, Date, Time, Battery power status, Memory reference, Hardness scale, Hardness value, Average value, Max/ Min value, Material, Type of impact device connected, measurement times, operating instruction
Accuracy	Within ±0.5% (at HLD=800)
Determination of direction:	360 degrees
Hardness Parameter	Richter (HL), Brinell (HB), Rockwell A (HRA), Rockwell B (HRB), Rockwell C (HRC), Vickers (HV), Shaw (HS)
Measuring Range/Materials		Range: HLD (170 ~ 960) HLD Measuring material: steel and cast steel, alloy tool steel, stainless steel, gray iron, ductile iron, cast aluminum, copper and zinc alloy (brass), copper-tin alloy (bronze), copper, forged steel
Tensile Strength		From 370 to 2000(106N/mm≈)
UTS range(steel only)		Thickness coupled: Minimum 3mm or more( Impact device G:10mm)
Testable work piece		Mass:5kg or more(2-5kg on solid support, 2KG with coolant paste) Surface roughness: Ra 10 Radius(convex/ concave): Ra 10 Radius(convex/concave): Rmin=30mm or more (30mm with support ring) Test Points:5mm or more from the edge of the sample, 3mm or more to each of the tested point.
Operating Impact Device		D/DC/D+15/DL/C/G
Impact Device Recognize		Automatically
Memory Extended		up to 500 groups (n impact times 32 ~ 1)
Output		RS232 interface or Built-in mini-printer
Limitation		Upper or lower limitation
Shutdown		2min, 5min, 8min or never shut down selection
User Defined		Defined the measurement conditions
Power supply		6V Ni-MH battery pack; charging power: 9V/500mA; charging time from 2.5 to 3.5 hours of continuous work time: about 100 hours (without backlight)
Operating temperature		-20°C ~ +50°C
Dimensions		215×140×45mm
Wight		700g