P.O. Box Ratio Manganin Coil
Product Code : JA-SI-8135
The P.O. Box Ratio Manganin Coil (SKU JA-SI-8135) is the closer-tolerance counterpart of the constantan P.O. box. Its coils are wound in manganin, and both columns are built on 14 mm thick rectangular brass blocks. The listed accuracy is +/-0.02% to 0.005%, and P.O. Box Ratio 3 and P.O. Box Ratio 4 versions with manganin coils are also offered.
Specifications
Listed values:
| Product | P.O. Box Ratio Manganin Coil |
| SKU | JA-SI-8135 |
| Coil wire | Manganin |
| Blocks | 14 mm thick rectangular brass, both columns |
| Accuracy | +/-0.02% to 0.005% |
| Versions | P.O. Box Ratio 3 (manganin), P.O. Box Ratio 4 (manganin) |
Scope of supply and ordering
Specify Ratio 3 or Ratio 4 when you enquire; the quotation confirms quantities and packing.
Frequently asked questions
Why choose the manganin version over the constantan one?
Its listed accuracy is +/-0.02% to 0.005%, against +/-0.1% for the constantan box.
What are the blocks made of?
14 mm thick rectangular brass, in both columns.
Related products
- P.O. Box Ratio Constantan Coil
- Resistance P.O. Box 4
- Resistance P.O. Box
- Resistance Box Constantan & Manganin
Compare other resistance boxes in the scientific instrument range.
Request a quote
For the manganin P.O. box ratio, give the version and quantity on our contact page. Institutions and contractors buying under a tender can also reach us via the tenders page.
