The tester HT-6561 is high accuracy instrument with large display. It is unique designed by ROK International. It can store 250 group data for analyzing, showing impact direction, material tested, hardness scales. It is easy for customers /user to recalibration. Leeb rebound hardness test is one of common NDT Instrument measuring the hardness of metal. It is mainly used for testing sufficiently large workpieces

The Main Use of HT-6561 Rebound Hardness Tester.

- Die cavity of molds
- Inspection of bearing and other mass produced parts on a production line
- Failure analysis of pressure vessel, steam generator and other equipment
- Inspection of installed machinery, permanent parts of assembled systems and heavy work pieces.
- Testing surface of a small hollow space
- Material identification in the warehouse of metallic materials
- Rapid testing in large range and multi-measuring areas for large-scale work piece

The Structure of Tester:

1. Release button

2. Load tube

3. Battery compartment/cover

4. Jack for RS232C interface

5. Power menu key

6. Read/Plus key

7. Direction/Shift key

8. Delete/Minus key

9. Support ring.

Features:

-Portable design, palm size suitable for using in narrow space.

-Test at any angle, even upside down.

- Direct display of hardness scales HRB, HRC, HV, HB, HS,HL.
- Large memory could store 50 groups including single measured value, impact direction, material and hardness scale etc.
- User recalibration function allowed.
- Can communicate with PC computer for statistics and printing by the optional cable.

- Backlight display, suitable for low light environment.
- Manual or automatic shut down.
- Low battery indication.

- With Backlight, can read in dark area.

- Wide test materials, can test 9 different common materials

- High accuracy

- Durable, Stable sensor.

Specification:

Display	12.5 mm LCD with back light
Materials	9 different common materials
Measuring range	200 ~ 900 HLD
Accuracy	Display error ± 0.8 %
Repeatability	± 0.8 %
Conversion	HL-HRC-HRB-HB-HV-HSD
Memory	50 data can be stored and re-readable
Impact device	D Will handle, Weight: 75g
Storage temperature	-30 ~ +60 ℃
Working Conditions	Temperature: -10 ~ +50 ℃ Humidity: ≤ 90 %
Power supply	2 x 1.5 V AAA size (UM-4) battery
Dimension	146 × 65 × 36 mm
Weight	130 g (not including batteries)

How the package comes

1. Main Unit

2. Standard hardness block

3. Carrying Case with foam

4. Operation manual English

5. Small Support Ring

6. Cleaning brush

Optional Accessories: (NOT in the package)

1. Impact Body

2. Support Rings Set

3. USB, RS-232C data cable with software

4. Bluetooth data out put with software

Notes:

1. Never try to let tester strike any tungsten steel or harder materials. It will lead to destruction of impact body.

2. Under no circumstances should you press the release button if the tester was not against the work piece. Otherwise the support ring would be loose easily.

3.To ensure test accuracy, the test surface of the workpiece must be clean
and free of any oil stains, rust, and remains from electro-plating or paint

General
Batteries Inside	NONE
Characteristic	Direct display of hardness scales HRB, HRC, HV, HB, HS,HL
HS Code	9024102000
Range	200 -900 HLD
Original	Qiqihaer，
Accuracy	Display error ± 0.8 %