The W1105-12-500 is the mid-range M1-grade calibration weight set in the Accuris W1105 set family — 12-piece set covering 1 g to 500 g range for mid-range calibration of standard / industrial balances (covering 50 g – 500 g balance capacities). Single-procurement option vs assembling individual W1005 weights.
For complete OIML M1 grade selection rationale and individual W1005 weight family reference, see the W1105-8-50 parent page.
Key Specifications
| SKU | W1105-12-500 |
| Type | Class M1 calibration weight set, 12 pieces |
| Mass range | 1 g to 500 g |
| Accuracy class | M1 (OIML standard) |
| Compatible balance grades | Standard / industrial balances at 500 g+ capacity |
| Set composition (typical 12-piece M1 1-500g set) | 1 g, 2 g, 5 g, 10 g, 20 g, 50 g, 100 g, 200 g, 500 g + duplicates for typical 12-piece industry conventions |
| Companion accessory | W1000-TF Tweezers ($42) |
| List price | $272 |
W1105 M1 Calibration Weight Set Family — Set-Size Reference
| SKU | Pieces | Mass range | List price |
| W1105-8-50 | 8 | 1 g – 50 g | $149 |
| W1105-12-500 (this product) | 12 | 1 g – 500 g | $272 |
| W1105-13-1000 | 13 | 1 g – 1000 g | $339 |
| W1105-21-100 | 21 | 1 mg – 100 g (sub-mg coverage) | $272.00 |
| W1105-22-200 | 22 | 1 mg – 200 g (sub-mg coverage) | $221 |
Pick the W1105-12-500 set when:
- Standard balance is 500 g capacity or larger
- Workflow needs full multi-point calibration coverage from low (1 g) through mid-high (500 g) mass values
- Sub-milligram calibration is NOT needed (step to W1105-21-100 or W1105-22-200 if needed)
Application Profile
See the W1105-8-50 parent page for the full application profile.
The 12-piece 1-500g set is the default M1 calibration set for typical 500 g – 2 kg standard / industrial balance facilities — provides multi-point calibration coverage matching the most-common balance capacity range.
Ordering & Configuration
Pair with W1000-TF tweezers.
Confirm at quote: balance capacity (500 g+), full mass-range coverage, case inclusion, and lead time.
Warranty: Per Accuris standard accessory terms — confirm at quote.
Accuris W1105 M1 Grade Calibration Weight Set family (see table above for full set-size ladder).
Pick the W1105-12-500 set for typical 500 g standard balance calibration; step to W1105-13-1000 for 1 kg balance or W1105-21-100/-22-200 for sub-milligram coverage.
