The W1100-200 is the complete OIML F1 grade calibration weight set for analytical balance calibration spanning sub-milligram to 200 gram range — sold as 23-piece set in single procurement. The set provides full multi-point calibration coverage for analytical balances at 0.1 mg readability and below — including the sub-milligram mass values (1 mg / 2 mg / 5 mg through 200 mg) not available as individual SKUs in the W1000 family (which starts at 100 g).
Key Specifications
| SKU | W1100-200 |
| Type | Class F1 calibration weight set, 23 pieces |
| Mass range | 1 mg to 200 g (sub-milligram to mid-gram, 23 individual pieces) |
| Accuracy class | F1 (OIML standard) |
| Compatible balance grades | Analytical balances (0.1 mg readability and below) — particularly the W3100 / W3100A / W3101A / W3102A series at 120 g – 210 g capacity |
| Typical set composition (per industry-standard 23-piece F1 set conventions) | 1 mg, 2 mg, 5 mg, 10 mg, 20 mg, 50 mg, 100 mg, 200 mg, 500 mg, 1 g, 2 g, 5 g, 10 g, 20 g, 50 g, 100 g, 200 g + duplicate weights for typical 23-piece industry conventions |
| Companion accessory | W1000-TF Tweezers ($42 — workflow-mandatory for set handling) |
| List price | $618 |
Why a Complete Set vs Individual Weights
| Procurement option | Cost | Coverage | Best for |
| W1100-200 complete set (this product) | $618 | 23 pieces, 1 mg – 200 g including sub-milligram values | Analytical balance calibration; ISO 17025 / GLP regulated labs; complete-coverage procurement |
| Individual W1000 weights (100 g + 200 g + 500 g + 1000 g) | $77 + $93 + $124 + $257 = $551 | 4 pieces, 100 g – 1000 g (no sub-100g coverage) | Higher-mass-range-only calibration; partial calibration coverage |
Key advantage of the complete set:
- Sub-milligram coverage (1 mg – 200 mg) — not available as individual SKUs in the Accuris catalog
- Single-procurement convenience — one SKU procurement vs assembling individual weights
- Set-included case typical for calibration-weight sets — provides organized storage + handling tools (confirm case inclusion at order)
- Multi-point full-range calibration — supports calibration verification at 8–12+ mass points across the full 1 mg – 200 g range
Pairing with Accuris Analytical Balances
The W1100-200 is the default calibration set for the Accuris analytical balance family:
| Balance SKU | Capacity | Readability | Calibration coverage from W1100-200 |
| W3100 / W3100A | 120 g | 0.1 mg | Full-range coverage with sub-mg verification |
| W3100A-210 | 210 g | 0.1 mg | Full-range coverage |
| W3101A series | 120 g / 210 g | 0.1 mg | Full-range coverage |
| W3102A series | 220 g | 0.1 mg | Full-range coverage |
For larger balances (W3200 500 g / 5 kg precision balances; W3300 platform balances), the W1100-200 set covers the lower mass range; pair with W1000-500 / W1000-1000 / W1005-2000 for high-range calibration.
Application Profile
Analytical balance calibration — the workhorse application. Pharmaceutical / biotech / clinical-research / research-grade analytical balance calibration in the 0.1 mg readability class.
ISO 17025 / GLP regulated lab calibration — regulated environments requiring documented multi-point F1 calibration coverage benefit from the complete set.
Multi-balance facility procurement — facilities with multiple analytical balances benefit from the complete-set procurement vs assembling individual weights.
Educational laboratory analytical chemistry programs — graduate-level analytical chemistry programs introducing OIML calibration concepts use the complete set for hands-on training across the full mass range.
Method-development analytical workflows — protocol-development workflows where calibration-accuracy is part of method-validation packages.
Replacement / upgrade procurement — labs upgrading from older calibration-weight sets benefit from the modern Accuris F1 set.
Ordering & Configuration
Pair with W1000-TF tweezers. Set handling requires tweezers; set may include tweezers in the case (confirm at order; if not, order W1000-TF separately at $42).
Confirm case / storage. Calibration-weight sets typically ship in protective case with weight-position cutouts. Confirm case inclusion and case dimensions / storage requirements at order.
Re-certification cycle. F1 calibration weight sets require periodic re-certification per OIML standard (typical 1–3 year interval). Plan for re-certification cycle as part of long-term calibration program.
Confirm at quote: balance grade in lab inventory (analytical 0.1 mg readability), full mass-range coverage need, set composition confirmation, case / handling tools inclusion, re-certification program plan, and lead time.
Warranty: Per Accuris standard accessory terms — confirm at quote.
Accuris analytical balance calibration weight options:
- W1100-200 (this product) — Class F1 set, 23 pieces, 1 mg – 200 g ($618) — complete multi-point coverage
- W1000-100 / -200 / -500 / -1000 — Individual F1 grade weights (100 g – 1000 g range only — no sub-100g coverage)
- W1005-1 through W1005-2000 — Individual M1 grade weights (1 g – 2000 g range — lower precision, lower cost)
- W1000-TF — Tweezers ($42) — workflow-mandatory
Pick the W1100-200 complete set for analytical balance calibration full-range coverage; sister individual weights cover specific mass-point procurement.
