Leeb portable hardness tester MET-D1A
Technical characteristics
| HARDNESS SCALE | MEASUREMENT RANGE |
LIMITS OF PERMISSIBLE ABSOLUTE ERROR OF THE HARDNESS GAUGE |
|---|---|---|
| Rockwell "C" scale | (20 - 70) HRC | ± 2 HRC |
| Brinell scale | (75 - 450) HB | ± 12 HV |
| Vickers scale | (75 - 1000) HV | ± 15 HV |
| Shore Scale | (23 - 102) HSD | ± 3HSD |
| MEASUREMENT PRINCIPLE | Bounce principle (Leib) | |
|---|---|---|
| PROBES TYPES | D, DSh | |
| HARD-ALLOY BALL DIAMETER | at least 2.5 mm | |
| ROUGHNESS OF THE SAMPLE SURFACE | no more than 3.2 Ra | |
Advantages
Package
| NAME | |
|---|---|
| Quantity | |
| Electronic unit MET-D1A in an aluminum case | 1 |
| Dynamic probe D or short probe DSh (optional) | 1 |
| Pusher for the probe DSh (when selecting the probe DSh ) | 1 |
| Cable for connecting the dynamic probe to the electronic unit | 1 |
| USB cable for connecting to a computer and a charger | 1 |
| Charger | 1 |
| AA battery | 4 |
| Battery compartment screw key | 1 |
| CD-ROM with external software "MET" and MET.39601863.009 RE user manual | 1 |
Calibration, verification, certification
Primary verification of hardness meters is carried out when the hardness meters are released from production. A "Certificate of Verification" of the established sample is issued for the hardness meters, which is included in the delivery package of the hardness meter.
Verification and calibration of portable MET series hardness meters is carried out using the main hardness scales HRC, HB, HV, HSD.
Calibration according to additional (user) scales H1, H2, H3 (for example, hardness scales HBW, HRB, HRN, HRT, etc.), as well as for metals that have significantly different properties from steel (for example, aluminum and copper alloys, etc.), is carried out by the user according to the instructions provided in the passport for the hardness meter. The Rm scale of the tensile strength is available, which is calculated from the HB scale according to GOST 22761 (Russian Federation).
The frequency of verification of the hardness meters is once a year. Verification can be carried out by any accredited for the right of verification of means of measurement of hardness metrological service of legal entities, regional Centres of Standards
