The W3101A-220 is the higher-capacity sister to the W3101A-120 — same Dx series Graphical Display UI and internal auto-calibration as the 120 g sister, with 220 g capacity vs 120 g for larger sample / formulation weighing at the same 0.1 mg readability class.
For complete chemistry rationale (Dx series Graphical Display features, internal calibration), and full Accuris analytical balance family comparison, see the W3101A-120 parent page.
Voltage options: This unit can be ordered with European voltage requirements (230V/50Hz). Contact us to order.
Key Specifications
| SKU | W3101A-220 |
| Type | Analytical balance with internal calibration, Graphical Display UI |
| Series | Dx (Graphical Display) |
| Capacity | 220 g (1.8× the W3101A-120's 120 g capacity) |
| Readability | 0.0001 g (0.1 mg) |
| Calibration mode | Internal auto-calibration |
| Voltage | 115 V |
| 120 g sister | W3101A-120 ($2,258) |
| Sister Tx series | W3102A-220 (220 g Touch Screen, $3,052), W3002A-120 (semi-micro Touch Screen, $3,992) |
| Recommended calibration weights | W1100-200 F1 grade set ($618) |
| List price | $2,625 |
When to Pick 220 g vs 120 g Capacity
| Capacity | Sample-mass workflow fit |
| 120 g (W3101A-120) | Single-tube samples, plasmid preps, peptide / protein preps in standard formats |
| 220 g (W3101A-220, this product) | Larger formulation weighing, multi-tube combined weighing, larger reagent prep, weighing boats with sample, tare-vessel + sample workflows |
Pick the 220 g capacity when: workflow includes larger sample volumes, multi-tube combined weighing, or weighing-boat + sample workflows where the 120 g capacity is constrained.
Accuris Analytical Balance Family — Series and Capacity Comparison
| SKU | Series | Capacity / Readability | UI | List price |
| W3100-120 / -120-E | (basic) | 120 g × 0.0001 g | LCD | $2,219 (no internal cal) |
| W3100A-120 / -120-E | (basic+) | 120 g × 0.0001 g | LCD | $2,354 (internal cal) |
| W3100A-210 / -210-E | (basic+) | 210 g × 0.0001 g | LCD | (sister pricing) |
| W3101A-120 | Dx | 120 g × 0.0001 g | Graphical Display | $2,258 |
| W3101A-220 (this product) | Dx | 220 g × 0.0001 g | Graphical Display | $2,625 |
| W3102A-220 | Tx | 220 g × 0.0001 g | Touch Screen | $3,052 |
| W3002A-120 | Tx | 62 g + 120 g semi-micro | Touch Screen | $3,992 |
Application Profile
See the W3101A-120 parent page for the full application profile (standard analytical workflows, multi-mode weighing, multi-investigator shared bench, method-development, educational programs, regulated-lab calibration).
The 220 g capacity is the default Dx series capacity for typical analytical bench workflows that include larger sample / formulation weighing.
Frequently Asked Questions
What capacity and readability does the W3101A-220 offer? 220 g capacity at 0.0001 g (0.1 mg) readability — 1.8× the capacity of the 120 g W3101A-120 sister at the same readability class.
When should I choose 220 g over the 120 g W3101A-120? When the workflow includes larger formulation weighing, multi-tube combined weighing, larger reagent prep, or weighing-boat and tare-vessel plus sample workflows where the 120 g capacity is constrained.
What does the Dx series designate? The Dx series is the Graphical Display UI with internal auto-calibration. For a touch-screen interface at the same 220 g capacity, step to the Tx series W3102A-220.
What calibration weights are recommended? The W1100-200 F1 grade set ($618).
Ordering & Configuration
Pair with W1100-200 F1 calibration weight set.
Confirm at quote: capacity needs (220 g vs 120 g), UI tier (Dx Graphical Display vs Tx Touch Screen — step to W3102A-220 if touch screen needed at 220 g capacity), calibration weight pairing, training requirements, and lead time.
Warranty: Per Accuris standard warranty terms — confirm at quote.
Accuris analytical balance family — pick the right tier:
See the family table above for complete series and capacity comparison.
Pick the W3101A-220 Dx series 220 g for typical analytical workflows requiring larger capacity than 120 g; step to W3102A-220 for touch-screen UI at the same 220 g capacity.
