General Information

Serial #

47364

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

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

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

27.5 cm

Width

24.2 cm

Height

11.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Energy-electric

Category

Measurement

Sub-Category

N/A

Manufacturer

AKA

Weston

Country

United States of America

State/Province

New Jersey

City

Newark

Context

Country

Unknown

State/Province

Unknown

Period

Unknown

Canada

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

Function

To measure DC current in milliamperes.

Technical

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.

Area Notes

Unknown

Details

Markings

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."

Missing

N/A

Finish

Unknown

Decoration

N/A