A&D EK-410i Capacity Guide: 400 g vs 410 g Specifications Explained
- pete8781
- Jul 31
- 3 min read
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A&D EK-410i capacity is one of those specifications that deserves a source-by-source explanation instead of a copied number. A&D’s current global EK-i specification table and current EK/EW-i manual list EK-410i at 400 g × 0.01 g, and the current A&D U.S. product-page title also says 400 g × 0.01 g. However, the U.S. page’s internal capacity field shows 410 g, while MNM’s product title says 410 gram even though its technical specification table lists 400 g. For procurement and qualification, the safest published baseline is the repeated 400 g specification from A&D’s global table/manual and MNM’s detailed table, while buyers who intend to operate above 400 g should confirm the exact supplied unit/documentation rather than assuming the final 10 g from a title or web field.
What the current A&D sources say
A&D’s global EK-i/EW-i specification table lists EK-410i: 400 g capacity, 0.01 g readability and a 110 mm round pan. The current EK/EW-i manual repeats 400 g and specifies 0.01 g repeatability, ±0.02 g linearity and a 400 g factory calibration mass. The current A&D U.S. page headline is also “EK-410i Compact Balance, 400g × 0.01g,” but a capacity field on that same page displays 410 g. That internal inconsistency is why a rigorous buyer guide should not silently choose whichever number appears first in search results.
What MNM Scales says
MNM’s listing URL/title uses “410 gram × 0.01 gram,” while its specification table gives 400 g capacity and a 400 g default calibration mass. That pattern matches the manufacturer documentation closely enough to treat EK-410i as a 400 g-class balance for planning. If your method or container can approach the top of the range, do not design a procedure that depends on 401–410 g capacity without confirming the actual delivered model documentation and performing overload-safe qualification.
Readability, repeatability and linearity
The consistent performance figures are more important for most users than the final 10 g naming discrepancy. Readability is 0.01 g, repeatability is 0.01 g and linearity is ±0.02 g. Those figures make EK-410i suitable for jewelry manufacturing, electronic components, formulations and internal QC where hundredth-gram display is useful. Readability is not the same as total measurement uncertainty; reference-weight uncertainty, drafts, static, temperature and load placement also affect real results.
Definitive trade-status answer
EK-410i is not an NTEP model in A&D’s current U.S. EK-i matrix. The trade-approved EK-i models are marked separately, and EK-410i is not among them. Use it for internal process, laboratory, formulation, parts and production weighing rather than a regulated customer transaction based directly on displayed weight. Calibration quality does not convert a non-certified model into a legal-for-trade device.
Counting, percent and RS-232C
A&D’s manual lists a maximum count around 40,000 pieces, 0.01 g minimum unit weight, sample sizes of 5, 10, 25, 50 or 100 pieces and a 1 g minimum 100% reference for percent mode. Standard bidirectional RS-232C supports data output and compatible commands. The balance also includes comparator functions and GLP-style identification output, so it can serve a small production station as well as a laboratory bench.
Calibration recommendation
Use 400 g as the documented factory calibration mass, because both the A&D manual and MNM technical table agree on that value. Calibrate on a level, stable balance with a suitable known reference, then verify with at least one independent value. If your process routinely approaches the upper capacity limit, add a method-specific gross-load check and confirm the exact maximum permitted load for the delivered unit before production.
Frequently asked questions
Is EK-410i a 400 g or 410 g balance? The current A&D global table/manual and MNM technical table say 400 g; A&D U.S. and MNM titles/fields also contain 410 g references. For qualification, use the documented 400 g baseline unless the exact supplied unit documentation establishes otherwise. What is readability? 0.01 g. Repeatability? 0.01 g. Linearity? ±0.02 g. Is it NTEP? No. What calibration mass is documented? 400 g. Does it include RS-232C? Yes. Can it count parts? Yes, down to 0.01 g average unit weight.
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