Made with a self-shielding Annular d'Arsonval movement, this meter can be installed in steel panels without requiring recalibration. The Pivot and Jewel suspension is spring-loaded for shock protection. The cover features an O-Ring backed zero corrector to ensure this meter can endure in environments where dust and water may be an issue.
These meters require an external shunt (sold separately). The meters are calibrated for external 5-foot or 0.065Ω leads. Each 0.1Ω of resistance above or below that value changes the indication by 1% at full scale
As a Simpson Authorized Modification and Repair Center, we keep the lead time short by stocking unfinished meters and completing final modifications and calibration in our laboratory. This meter, when produced this way, is Underwriter Laboratories Recognized.
As an Authorized Simpson Modification Center, we can offer custom upgrades, such as meter illumination, custom artworks, and adding company logos to dial artworks.
Specifications
| Brand | Simpson Electric |
| Series | Round |
| Model | 25 |
| Form Factor | 3-Stud Mount, Panel: 3.5-Inch ANSI C39.1 |
| Input Range | 0-50mVDC |
| Input Frequency | DC |
| Scale, Range, or Display | 0-150ADC |
| Accuracy | ±2% of Full Scale |
| Tariff Code | 9030.33.0040 |
| ECCN | EAR99 |