High Precision Balance, EMFC, 220 / 520 / 1020 g x 1 mg, Internal Calibration
Electromagnetic force compensation precision balance in 220 g, 520 g and 1020 g capacities, all reading to 1 mg, with motorised internal calibration, a draught chamber and a touch-screen display.
Typical applications
- Formulation and sample weighing in QC laboratories
- Weighing reference materials and standards
- Gravimetric preparation of solutions
- Filter, crucible and residue weighing
- Piece counting of small components
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Worth knowing before you order
The two things that decide this family over a strain-gauge loadcell balance of the same resolution are the weighing cell and the calibration. Electromagnetic force compensation holds its linearity and its zero across the range and drifts less with temperature than a loadcell, which is what makes 1 mg credible at 1020 g; and calibration is internal, from a motorised weight inside the balance, so there is no external weight to buy, store, handle or re-certify. Read the three figures separately: 1 mg is readability, repeatability is also 1 mg and linearity is 2 mg, so a difference of one or two display steps between two weighings is not a real difference. The "Min. (Capacity) 100 mg" row is the smallest load the balance is specified for - below it nothing is guaranteed; where a pharmacopoeial minimum weight matters, that is set by a repeatability test on your own bench, not by this figure. "Class I" is printed without a verification scale interval or a number of scale intervals, so treat it as a class designation and not as evidence of legal-for-trade verification, which is a separate exercise. The operating range is 15-30 °C, narrower than the general-purpose balances in this range, so it wants a temperature-controlled room rather than a warm store.Specification
| Capacity x readability, model A | 220 g x 0.001 g (1 mg) |
|---|---|
| Capacity x readability, model B | 520 g x 0.001 g (1 mg) |
| Capacity x readability, model C | 1020 g x 0.001 g (1 mg) |
| Repeatability, all models | 0.001 g |
| Linearity (±), all models | 0.002 g |
| Minimum capacity (as printed) | 100 mg |
| Weighing principle | Electromagnetic force compensation (EMFC) |
| Calibration | Internal |
| Pan size | 90 mm Ø on the 220 g and 520 g models; 120 mm Ø on the 1020 g model |
| Weighing chamber height | 195 mm |
| Display | Touch screen |
| Response time | 4-5 sec |
| Tare range | Full |
| Weighing units | mg, g, ct, ozt, oz, GN, dwt, lb |
| Operating temperature | 15 °C to 30 °C |
| Accuracy class printed in the catalogue | I |
| Interface and data output | RS232C; command and continuous output; baud rate 600, 1200, 2400, 4800, 9600 |
| Power supply | AC 220 V / 50-60 Hz |
| Packing dimensions (L x W x H) | 495 x 390 x 520 mm |
| Gross weight | 10 kg on the 220 g and 520 g models; 11 kg on the 1020 g model |
| Supplied with | Weighing pan, power cable, dust cover, instruction manual, test certificate |
| HSN code | 90160010 |
Support available
- Installation & commissioning
- Calibration
- Validation & qualification (IQ/OQ/PQ)
- Operator training
- Annual maintenance contract
- Spares & consumables
Calibration is arranged through NABL-accredited laboratories under the relevant scope. We state the scope and the certificate number on the quotation — see what accreditation actually covers.
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