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Portable Hardness Tester DH-300 series
DHT-300C;
DHT-300D;
DHT-300DL;DHT-310 series, including Bluetooth Printer.
Feature
- Pocket size, easy to operate
- High contrast OLED display
- High accuracy +/-4HL (0.5% at 800HL)
- Conveniently exchange between impact device D and DL
- Automatic orientation correction
- Work with Mini-printer thru Bluetooth (DHT-310 series)
- Based on the hardness HL value, conversion to HRB, HRC, HV, HB and HS hardness scale
- USB interface for both recharging and data transfer to PC
- Internal memory in a batch of 1250 average readings
- Lower and upper limit setting
- Work on 3.7V rechargeable lithium battery with working more than 16 hours continuously
- Auto shutdown after 5 minutes
- Conforming to ASTM A 956
DHT-300C DHT300D DHT-300DL
| Specification |
Hardness Parameter | HL, HRC, HRB, HV, HB,HS | |
Measuring Range | See table 1 | |
Display | 112 x 64 OLED | |
Display functions D | Hardness Scale, Hardness Value, average value, impact direction, Max/Min value, Material, battery | |
Accuracy | Within +/- 0.5% (at HLD=800) | |
Memory | 1250 group | |
Standard Impact device | D | |
Optional Impact Device | DL / C | |
Output | USB | |
Testable work piece | Thickness coupled: Minimum 3 mm or more (Except with Impact device G:10mm) Mass: 5kg or more (2-5kg on solid support ,﹤2kg with couplant paste) Surface roughness: 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 points. | |
Battery type | 3.7 V rechargeable lithium-battery | |
Operating temperature | -20℃ ~ +50℃ | |
Dimensions | 158 x 41 x 26 mm | |
Weight | 120g | |
Hardness Parameter | HL, HRC, HRB, HV, HB,HS | |
Measuring Range | See table below | |
Display | 320 x 240 LCD with backlight | |
Display functions D | Hardness Scale, Hardness Value, average value, impact direction, Max/Min value, Material, battery life, date, instruction | |
Accuracy | Within +/- 0.5% (at HLD=800) | |
Memory | 1750 group | |
Standard Impact device | D | |
Optional Impact Device | D / DC/ D+15 / DL / C / G | |
Output | USB | |
Testable work piece | -Thickness coupled: Minimum 3 mm or more (Except with Impact device G:10mm) -Mass: 5kg or more (2-5kg on solid support ,﹤2kg with couplant paste) -Surface roughness: 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 points. | |
Battery type | 4 x 1.25 v rechargeable battery | |
Operating temperature | -20℃ ~ +50℃ | |
Dimensions | 215 x 140 x 45 mm | |
Weight | 700g | |
| Range reference |
Material | HL | HRC | HRB | HB | HS | HV |
ST & Cast ST | 300-900 | 20.0-68.0 | 38.4-99.5 | 80-647 | 32.5-99.5 | 80-940 |
CWT Steel | 300-840 | 20.4-67.1 | 80-898 | |||
Stainless | 300-800 | 19.6-62.4 | 46.5-101.7 | 85-655 | 85-802 | |
GC Iron | 360-650 | 90-334 | ||||
NC Iron | 400-660 | 131-367 | ||||
Cast Alum. | 174-560 | 20-159 | ||||
Brass | 200-550 | 13.5-95.3 | 40-173 | |||
Bronzes | 300-700 | 60-290 | ||||
Copper | 200-690 | 45-315 |
| Standard delivery | ||
- Main Unit with integrated Impact D, C or DL |  | |
Products
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Tel：+86 10-57536875 ext.801
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