10-Inch Dial Dynamometer

Definition

The 10-inch dial AP dynamometer offers a larger display for high-capacity, high-visibility field applications. The larger dial provides more scale divisions per capacity increment — critical when the instrument is mounted at height on tensioning equipment or suspended from a crane. The 10-inch AP models (30007-xxxx and 30784-xxxx series) span capacities from 1,000 kg x 5 kg to 30,000 lb x 200 lb and 20,000 kg x 100 kg. The practical selection rule: choose the 10-inch dial when (a) the operating capacity exceeds the 5-inch dial’s available range, (b) the dynamometer will be read from more than 10–15 feet away, or (c) the application is EHV transmission stringing, large crane operations, or marine load testing where sustained high loads benefit from the 10-inch’s more robust spring mechanism.

Frequently Asked Questions

Why 10-Inch Dial Dynamometer Matters

The risk in dial size selection is defaulting to the 5-inch for every application and discovering mid-job that the required capacity is not available in that configuration, or that the dial is unreadable at working distance. For EHV transmission work or environments where the dynamometer hangs 20–30 feet above the crew, a 5-inch dial is functionally unreadable. Specifying the correct dial size before mobilization eliminates a field problem that is expensive to correct after the job starts.

How Dynamic Measurement Uses It

DMS stocks select 10-inch AP models — including the 30784-0017 (30,000 lb x 200 lb) and 30784-0058 (20,000 kg x 100 kg) — for immediate shipping. Their technical staff can match the correct 10-inch AP model to specific tension specifications and span geometry. Calibration and repair for 10-inch AP models are handled in-house with the same NIST-traceable process and expedited 24–48 hour option.