General Information

Serial #

2510

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

WOODEN CASE/ METAL TOP COVER/ GLASS COVER OVER DIAL FACE/ FELT LINING BETWEEN METAL COVER AND WOODEN CASE/ SYNTHETIC KNOBS

Dimensions

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

Length

40.0 cm

Width

36.0 cm

Height

10.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Physics

Category

Electricity

Sub-Category

N/A

Manufacturer

AKA

Weston

Country

United States of America

State/Province

New Jersey

City

Newark

Context

Country

Canada

State/Province

Unknown

Period

PROBABLY 1940S UP TO THE 1990S

Canada

TYPE SAMPLE OF AMMETER USED TO SET STANDARDS

Function

TO MEASURE ELECTRIC CURRENTS IN AMPERES/ PRIMARY REFERENCE STANDARD AGAINST WHICH ALL AC & DC INSTRUMENTS MAY BE CHECKED.

Technical

EXAMPLE OF LABORATORY STANDARD METER

Area Notes

Unknown

Details

Markings

PLATE ON TOP: 'WESTON LABORATORY STANDARD/ D.C. AMMETER/ MODEL 5 NO. 2510/ WESTON ELECTRICAL INSTRUMENT CORP./ NEWARK, N.J., U.S.A./ PATENTED NOV.6, 1888 MAY 14, 1889/ APRIL 29,1890 JUNE 10, 1890'/ PRINTED ON DIAL FACE: 'USE WITH EXTERNAL 100 MV. SHUNT/ [THREE SCALES] 0 [TO] 50/ 0 [TO] 100/ 0 [TO] 200'/ THERMOMETER FROM '10' TO '40 C'

Missing

From CA of 12/11/2001 by David Daley: No - Complete

Finish

WOOD STAINED AND VARNISHED/ BLACK CRACKLED METAL COVER/ BLACK KNOBS/ WHITE DIAL FACE WITH BLACK PRINTING

Decoration

N/A