Voltmeter
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1973.0470.001
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- OBJECT TYPE
- Switchboard DC/Single Range
- DATE
- 1952
- ARTIFACT NUMBER
- 1973.0470.001
- MANUFACTURER
- Weston Electrical Instrument Corp.
- MODEL
- 921
- LOCATION
- Newark, New Jersey, United States of America
More Information
General Information
- Serial #
- 14531
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- Steel body/ glass window/ paper scale.
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 17.8 cm
- Width
- 17.8 cm
- Height
- 17.8 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
- Period Used until approximately 1968, as before then the calibrations had been semi-annual.
- Canada
-
Typical voltmeter used in Canadian industry. - Function
-
Measures voltage in volts. - Technical
-
Permanent magnet movable coil type DC flush type switchboard voltmeter. The square shape made it economical to place many of these meters side by side or on top of each other. The round shape which one often finds in switchboard meters is only used for aesthetic reasons or because the round shape is easy to manufacture. This square shape was probably only possible thanks to advances in working with sheet steel. This model is designed for affordability and so the case is simpler and less elegant than other voltmeters by the same manufacturer. The wide screen allows in a lot of light and makes the scale very visible from a distance. It is quite possible that voltmeters of this type were of standard use at schools and universities. This model is very similar to 1973.0473. This model measures direct current and the other one measures alternating current. Barring the scale, it is identical to 1973.0475. - Area Notes
-
Unknown
Details
- Markings
- On scale: 'VOLTS/ D.C./ WESTON/ MODEL 921/ No. 14531' ; '4' written on a piece of masking tape; On sticker: 'STANDARD CALIBRATION SEAL/ CAL. BY VC#15/ DATE 14 Dec 67/ DATE DUE 14 June 68'
- Missing
- N/A
- Finish
- Black metal housing. Gauge is numbered from 0 to 150 volts by 25's. Appears good.
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Weston Electrical Instrument Corp., Voltmeter, circa 1952, Artifact no. 1973.0470, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1973.0470.001/
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