» Weston Ammeter (0003)
Immagini
DESCRIPTION
This Weston ammeter is a rather compact and robust instrument with three full scale measurement ranges, 3,15 and 30 amps. On the top there are four terminals, three for the respective ranges and one for the common ground.It was calibrated against a standard ammeter around 1980 at values of 2, 10 and 20 amps for the three ranges and was found to be quite accurate.
ISCRIZIONI
- Sullo strumento una traghetta porta inciso: "WESTON AMMETER¶
PATENTED¶
JUL. 10,'94 NOV.20,'95¶
JAN.29,'95 OCT.4,'98¶
JUL. 16,'01¶
OTHER PATENTS PENDING¶
MODEL 280 N° 86138¶
WESTON ELEC. INST. CO NEWARK, N.J. U.S.A"
Dati Catalografici
| Data di costruzione: | --- |
|---|---|
| Data di carico: | 1929-05-22 |
| Nr. Inventario: | 4372 (Generale dal 1874) |
| Costruttore: | Weston Elec. Inst. Co. (inciso) |
| Materiale: | metallo |
| Dimensioni: | 110 mm * 110 mm * 38 mm |
| Conservazione: | ottimo |