Name: Checkline QH5 Leeb Hardness Tester, Rebound Hardness, Demeq
Brand: Checkline
SKU: 1401

Checkline QH5 Leeb Hardness Tester, Rebound Hardness

Accuracy of ± 4HL (0.5% at 800HL)

The Checkline QH5 Leeb Hardness Tester, Rebound Hardness is small, robust, precise, repetitive, and easy to use. They operate on the Leeb dynamic method and are used to measure the hardness in most metals including steel, cast steel, alloy tool steel, stainless steel, grey cast iron, spheroid iron, cast aluminum, brass, bronze and wrought copper. The QH5 offers Cal-Tag technology in all of our impact devices so that they can easily be changed with no need to calibrate the unit.

The QH5 includes a Data Logger that can store 32000 values and can connect to a PC via USB using DataCenter software.

Kit Contents

QH5 Leeb Hardness Tester, Rebound Hardness
Impact Device
Test Block
Coupling Paste
High Impact
CD with DataCenter Software
USB Cable
Certificate of Conformity
User Manual
Carrying Case

Click image to enlarge

Features

Meets ASTM A-956 standards
Converts from HL to selected hardness units
Accuracy of ± 4HL (0.5% at 800HL)
Impact devices can be used in all directions
Cal-Tag to easily switch impact devices
Histogram graphical representations
High impact ABS enclosure w/ rubber sides
Sleek design with a Touch-Sense front panel
Quick access key (angle, hardness unit)
Connect to PC via USB or RS232 (optional)
DataCenter software included
Model upgrade licenses

Specifications

Measurement

Method

Leeb rebound method

Resolution

1 HL - 1 HB - 1HV - 0.1HRC - 0.1 HRB - 0.1 HRB - 0.1 HS - 1 N/mm2

Accuracy

±4 HL (0.5% at 800 HL)

Measuring range

HL 150 - 960

Impact angles

0°, 45°, 90°, 135°, 180°

Features

Histogram

3 to 18 bars

Statistics

Medium, Max, Min, Std Dev, Range

User units

HU-1, HU-2 user generated

Clock

Time and date registration

Alarms

High and Low

Screen

Backlight

LED (ON, OFF, AUTO)

LCD

Graphics 128 x 64 px

Contrast

Digital and Automatic

Data Logger

Capacity

32000 + values, Up to 8 files with alphanumeric names

Organization

Up to 8 files with alphanumeric names

Capture modes

Manual and Automatic

Connection to PC

Connection

USB native or RS232 (optional cable)

Updates

Software and models (licenses)

Electronic Unit

Dimensions

78 x 117 x 24 mm

Weight

200g with batteries

Working Temperature

-10 to +50 °C

Enclosure

High Impact ABS

Power Supply

Batteries

2 x AA 1.5V

Operation

120 hours with backlight off

Shutdown

Manual, Auto or Continuous

Warranty

5 Years on Electronic Display, 6 Months on Impact Device (under normal use)

Models

QH5-D	QH5-M	QH5-G

Type D, DC impact device Histogram graphics Real time stats Alarms USB to connect to PC	Type D, DC, C, DL, E, G impact device Histogram graphics Real time stats Alarms USB to connect to PC	Type G impact device Histogram graphics Real time stats Alarms USB to connect to PC

Model Selection Chart

	QH5-D	QH5-G	QH5 M	QH5 M	QH5 M
Impact Device Type	D, DC	G	C	DL	E
Metals / Hardness Units	Hardness Ranges	Hardness Ranges	Hardness Ranges	Hardness Ranges	Hardness Ranges
Steel and Cast Steel
Brinell (HB)	81 - 663	90 - 646	81 - 646	80 - 646	83 - 663
Vickers (HV)	81 - 996	-	80 - 950	80 - 996	84 - 12111
Rockwell C (HRC)	20 - 72	-	21 - 68	20 - 70	22 - 70
Rockwell B (HRB)	37 - 100	48 - 100	37 - 100	-	-
Rockwell A (HRA)	-	-	-	-	62 - 88
Shore (HS)	32 - 100	-	-	32 - 99	36 - 102
Rm (N/mm2)	275 - 2194	305 - 2194	275 - 2297	275 - 2194	283 - 2195
Alloy Tool Steeel
Vickers (HV)	80 - 898	-	-	-	-
Rockwell C (HRC)	20 - 67	-	-	-	-
Stainless Steel
Brinell (HB)	85 - 655	-	-	-	-
Vickers (HV)	85 - 802	-	-	-	-
Rockwell C (HRC)	20 - 62	-	-	-	-
Rockwell B (HRB)	46 - 102	-	-	-	-
Grey Cast Iron
Brinell (HB)	92 - 334	92 - 326	-	-	-
Sphreoid Iron
Brinell (HB)	127 - 387	127 - 364	-	-	-
Cast Aluminum
Brinell (HB)	19 - 160	-	-	-	-
Brass
Brinell (HB)	40 - 173	-	-	-	-
Rockwell B (HRB)	14 - 95	-	-	-	-
Copper
Brinell (HB)	45 - 315	-	-	-	-
Bronze
Brinell (HB)	60 - 290	-	-	-	-

Software

DataCenter is a universal program that is used to download and process data stored in the unit memory can be transferred to a PC via USB. With the tools in DataCenter you can generate statistics, graphics, export values to other programs, and prepare custom reports among other things. DataCenter is also used to download unit software updates at no charge.