Renseignements généraux

Nº de série

47364

Nº de partie

1

Nombre total de parties

1

Ou

S/O

Brevets

S/O

Description générale

Metal (steel, & brass)/ Glass / Paper scale/ Ebonite.

Dimensions

Remarque : Cette information reflète la taille générale pour l’entreposage et ne représente pas nécessairement les véritables dimensions de l’objet.

Longueur

27,5 cm

Largeur

24,2 cm

Hauteur

11,0 cm

Épaisseur

S/O

Poids

S/O

Diamètre

S/O

Volume

S/O

Lexique

Groupe

Énergie-électrique

Catégorie

Mesurage

Sous-catégorie

S/O

Fabricant

Ou

Weston

Pays

United States of America

État/province

New Jersey

Ville

Newark

Contexte

Pays

Inconnu

État/province

Inconnu

Période

Inconnu

Canada

Early example of DC switchboard meter used in Canadian power industry.

Fonction

To measure DC current in milliamperes.

Technique

Medium accuracy instrument for large switchboards. Similar to 1969.0701. Permanent magnet moveable coil type for DC only. Weston's best non-Illuminated Dial Switchboard instrument of its kind for its period.

Notes sur la région

Inconnu

Détails

Marques

Face plate reads: "WESTON AMMETER/ MADE BY/ WESTON ELECTRICAL INSTRUMENT COMPANY/ NEWARK, N.J., U.S.A./ NO.47364" Mfr. patent plate: "PATENTED./ NOV. 6, 88. MAY, 14, 89. APR. 29, 90./ NOV. 11, 90. FEB. 17, 91. MAY, 12, 91./ DEC. 29, 91. MAR. 8, 92. APR. 26, 92./ JUN. 28, 92. AUG. 16, 92. NOV. 22, 92./ JAN. 31, 93. APR. 4, 93. MAY 2, 93./ MAY, 16, 93. JUN. 13, 93. JUL. 10, 94./ NOV. 20, 94. JAN. 29, 95. OCT. 4, 98./ JUL. 16, 01./ DESIGN PATENTS/ JUN. 10, 90. MAR. 20, 94./ MAR. 27, 94. MAR. 22, 98." Label glued to the back of the ammeter reads: "DIRECTIONS./ It is important that the following be carefully observed in connecting/ up Weston Ammeter with shunts:/ 1st. See that the instrument, cables and shunt bear the same manufacturing numbers, as/ they are adjusted and numbered in sets, and each set must therefore be connected up together./ 2nd. Always connect the cable to the shunt first before connecting to the instrument./ 3d. All contacts must be cleaned and screwed down firmly./ 4th. Do not cut the cables or in any way change the/ length of them./ 5th. Do not break the seals; if the instrument is out of order ship it to the maker for repairs./ 6th. When shipping instruments fasten the cover to the packing box with screws, not nails,/ as the pounding with the hammer will injure the instrument./ WESTON ELECTRICAL INSTRUMENT CO.,/ NEWARK, N.J., U.S.A." Face plate reads: "WESTON AMMETER/ MADE BY/ WESTON ELECTRICAL INSTRUMENT COMPANY/ NEWARK, N.J; U.S.A."

Manque

S/O

Fini

Inconnu

Décoration

S/O